diff --git a/.bazelrc b/.bazelrc
index 76afa1ad32..fa0ca7a2f0 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -81,11 +81,11 @@ build:ci --keep_going
 # Show test errors.
 build:ci --test_output=errors
 
-# Override timeout for tests
-build:ci --test_timeout_filters=-eternal
+# Skip tests that are too large to run on CI.
+build:ci --test_size_filters=small,-medium,-large,-enormous
 
-# Only show failing tests to reduce output
-build:ci --test_summary=terse
+# Print information only about tests executed
+build:ci --test_summary=short
 
 # Attempt to work around intermittent issue while trying to fetch remote blob.
 # See e.g. https://github.com/bazelbuild/bazel/issues/18694.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0f30547c7d..7f34130af3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -200,6 +200,7 @@ if(BUILD_TESTING)
     "NOT BUILD_DEPS" ON)
   CMAKE_DEPENDENT_OPTION(BUILD_benchmark "Build benchmark" OFF
     "NOT BUILD_DEPS" ON)
+  set(BUILD_protobuf_matchers ON)
   # Fuzztest do not support MSVC or toolchain
   if(APPLE OR MSVC OR CMAKE_CROSSCOMPILING)
     set(USE_fuzztest OFF)
@@ -215,11 +216,13 @@ if(BUILD_TESTING)
   endif()
 else()
   set(BUILD_googletest OFF)
+  set(BUILD_protobuf_matchers OFF)
   set(BUILD_benchmark OFF)
   set(USE_fuzztest OFF)
   set(BUILD_fuzztest OFF)
 endif()
 message(STATUS "Build googletest: ${BUILD_googletest}")
+message(STATUS "Build protobuf_matchers: ${BUILD_protobuf_matchers}")
 message(STATUS "Build benchmark: ${BUILD_benchmark}")
 message(STATUS "Enable fuzztest: ${USE_fuzztest}")
 message(STATUS "Build fuzztest: ${BUILD_fuzztest}")
diff --git a/MODULE.bazel b/MODULE.bazel
index 6899e7cb2a..5f37bfb477 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -46,6 +46,7 @@ bazel_dep(name = "fuzztest", version = "20250805.0")
 bazel_dep(name = "glpk", version = "5.0.bcr.4")
 bazel_dep(name = "google_benchmark", version = "1.9.2")
 bazel_dep(name = "googletest", version = "1.17.0")
+bazel_dep(name = "protobuf-matchers", version = "0.1.1")
 bazel_dep(name = "highs", version = "1.11.0")
 bazel_dep(name = "protobuf", version = "32.0")
 bazel_dep(name = "re2", version = "2025-08-12")
diff --git a/cmake/cpp.cmake b/cmake/cpp.cmake
index 00055926f8..96268ae019 100644
--- a/cmake/cpp.cmake
+++ b/cmake/cpp.cmake
@@ -231,7 +231,7 @@ endfunction()
 # Parameters:
 # NAME: CMake target name
 # SOURCES: List of source files
-# [TYPE]: SHARED or STATIC
+# [TYPE]: SHARED, STATIC or INTERFACE
 # [COMPILE_DEFINITIONS]: List of private compile definitions
 # [COMPILE_OPTIONS]: List of private compile options
 # [LINK_LIBRARIES]: List of **public** libraries to use when linking
@@ -275,16 +275,18 @@ function(ortools_cxx_library)
   message(STATUS "Configuring library ${LIBRARY_NAME} ...")
 
   add_library(${LIBRARY_NAME} ${LIBRARY_TYPE} "")
-  target_sources(${LIBRARY_NAME} PRIVATE ${LIBRARY_SOURCES})
-  target_include_directories(${LIBRARY_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-  target_compile_definitions(${LIBRARY_NAME} PRIVATE ${LIBRARY_COMPILE_DEFINITIONS})
-  target_compile_features(${LIBRARY_NAME} PRIVATE cxx_std_17)
-  target_compile_options(${LIBRARY_NAME} PRIVATE ${LIBRARY_COMPILE_OPTIONS})
-  target_link_libraries(${LIBRARY_NAME} PUBLIC
-    ${PROJECT_NAMESPACE}::ortools
-    ${LIBRARY_LINK_LIBRARIES}
-  )
-  target_link_options(${LIBRARY_NAME} PRIVATE ${LIBRARY_LINK_OPTIONS})
+  if(LIBRARY_TYPE STREQUAL "INTERFACE")
+    target_include_directories(${LIBRARY_NAME} INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+    target_link_libraries(${LIBRARY_NAME} INTERFACE ${PROJECT_NAMESPACE}::ortools ${LIBRARY_LINK_LIBRARIES})
+  else()
+    target_sources(${LIBRARY_NAME} PRIVATE ${LIBRARY_SOURCES})
+    target_include_directories(${LIBRARY_NAME} PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
+    target_compile_definitions(${LIBRARY_NAME} PRIVATE ${LIBRARY_COMPILE_DEFINITIONS})
+    target_compile_features(${LIBRARY_NAME} PRIVATE cxx_std_17)
+    target_compile_options(${LIBRARY_NAME} PRIVATE ${LIBRARY_COMPILE_OPTIONS})
+    target_link_libraries(${LIBRARY_NAME} PUBLIC ${PROJECT_NAMESPACE}::ortools ${LIBRARY_LINK_LIBRARIES})
+    target_link_options(${LIBRARY_NAME} PRIVATE ${LIBRARY_LINK_OPTIONS})
+  endif()
 
   include(GNUInstallDirs)
   if(APPLE)
diff --git a/cmake/dependencies/CMakeLists.txt b/cmake/dependencies/CMakeLists.txt
index d14cd5342a..e40906beb7 100644
--- a/cmake/dependencies/CMakeLists.txt
+++ b/cmake/dependencies/CMakeLists.txt
@@ -152,6 +152,7 @@ if(BUILD_Protobuf)
     UPDATE_COMMAND git reset --hard
     PATCH_COMMAND git apply --ignore-whitespace
     "${CMAKE_CURRENT_LIST_DIR}/../../patches/protobuf-v32.0.patch"
+    OVERRIDE_FIND_PACKAGE # Make package visible for "protobuf-matchers" below
   )
   FetchContent_MakeAvailable(Protobuf)
   list(POP_BACK CMAKE_MESSAGE_INDENT)
@@ -537,6 +538,23 @@ if(BUILD_googletest)
   message(CHECK_PASS "fetched")
 endif()
 
+if(BUILD_protobuf_matchers)
+  message(CHECK_START "Fetching protobuf-matchers")
+  list(APPEND CMAKE_MESSAGE_INDENT "  ")
+  FetchContent_Declare(
+    protobuf-matchers
+    GIT_REPOSITORY https://github.com/inazarenko/protobuf-matchers.git
+    GIT_TAG v0.1.1
+    GIT_SHALLOW TRUE
+    UPDATE_COMMAND git reset --hard
+    PATCH_COMMAND git apply --ignore-whitespace
+    "${CMAKE_CURRENT_LIST_DIR}/../../patches/protobuf-matchers-v0.1.1.patch"
+  )
+  FetchContent_MakeAvailable(protobuf-matchers)
+  list(POP_BACK CMAKE_MESSAGE_INDENT)
+  message(CHECK_PASS "fetched")
+endif()
+
 if(BUILD_benchmark)
   message(CHECK_START "Fetching benchmark")
   list(APPEND CMAKE_MESSAGE_INDENT "  ")
diff --git a/ortools/algorithms/BUILD.bazel b/ortools/algorithms/BUILD.bazel
index 2f2d2cb9c7..ff0f1ffd1f 100644
--- a/ortools/algorithms/BUILD.bazel
+++ b/ortools/algorithms/BUILD.bazel
@@ -93,6 +93,7 @@ cc_library(
 
 cc_test(
     name = "radix_sort_test",
+    size = "medium",
     srcs = ["radix_sort_test.cc"],
     copts = select({
         "@platforms//os:windows": ["/Zc:preprocessor"],
diff --git a/ortools/algorithms/CMakeLists.txt b/ortools/algorithms/CMakeLists.txt
index 4d94166a58..da84d96cc8 100644
--- a/ortools/algorithms/CMakeLists.txt
+++ b/ortools/algorithms/CMakeLists.txt
@@ -65,4 +65,9 @@ if(BUILD_TESTING)
       GTest::gmock
     )
   endif()
+
+  # These tests are too long so we disable them.
+  set_tests_properties(
+    cxx_algorithms_radix_sort_test
+    PROPERTIES DISABLED TRUE)
 endif()
diff --git a/ortools/algorithms/java/CMakeLists.txt b/ortools/algorithms/java/CMakeLists.txt
index 82c9e26691..29d7865e8b 100644
--- a/ortools/algorithms/java/CMakeLists.txt
+++ b/ortools/algorithms/java/CMakeLists.txt
@@ -34,4 +34,9 @@ if(BUILD_TESTING)
   foreach(FILE_NAME IN LISTS JAVA_SRCS)
     add_java_test(FILE_NAME ${FILE_NAME})
   endforeach()
+
+  # These tests are too long so we disable them.
+  set_tests_properties(
+    java_algorithms_KnapsackSolverTest
+    PROPERTIES DISABLED TRUE)
 endif()
diff --git a/ortools/base/BUILD.bazel b/ortools/base/BUILD.bazel
index fa1d98a29d..1e1b632e87 100644
--- a/ortools/base/BUILD.bazel
+++ b/ortools/base/BUILD.bazel
@@ -182,9 +182,9 @@ cc_library(
     testonly = True,
     hdrs = ["gmock.h"],
     deps = [
-        ":protocol-buffer-matchers",
         "@abseil-cpp//absl/status:status_matchers",
         "@googletest//:gtest",
+        "@protobuf-matchers//protobuf-matchers",
     ],
 )
 
@@ -373,19 +373,6 @@ cc_library(
     ],
 )
 
-cc_library(
-    name = "protocol-buffer-matchers",
-    testonly = True,
-    srcs = ["protocol-buffer-matchers.cc"],
-    hdrs = ["protocol-buffer-matchers.h"],
-    deps = [
-        "@abseil-cpp//absl/log:check",
-        "@abseil-cpp//absl/strings",
-        "@googletest//:gtest",
-        "@protobuf",
-    ],
-)
-
 cc_library(
     name = "protoutil",
     hdrs = ["protoutil.h"],
diff --git a/ortools/base/CMakeLists.txt b/ortools/base/CMakeLists.txt
index c58c6abfff..b554d18b43 100644
--- a/ortools/base/CMakeLists.txt
+++ b/ortools/base/CMakeLists.txt
@@ -14,7 +14,6 @@
 file(GLOB _SRCS "*.h" "*.cc")
 list(FILTER _SRCS EXCLUDE REGEX "/.*_test.cc")
 list(FILTER _SRCS EXCLUDE REGEX "/gmock\.h")
-list(FILTER _SRCS EXCLUDE REGEX "/protocol-buffer-matchers\..*")
 
 set(NAME ${PROJECT_NAME}_base)
 
@@ -51,10 +50,8 @@ ortools_cxx_library(
     base_gmock
   SOURCES
     "gmock.h"
-    "protocol-buffer-matchers.cc"
-    "protocol-buffer-matchers.h"
   TYPE
-    STATIC
+    INTERFACE
   LINK_LIBRARIES
     absl::log
     absl::strings
@@ -62,6 +59,7 @@ ortools_cxx_library(
     GTest::gtest
     GTest::gmock
     protobuf::libprotobuf
+    protobuf-matchers
   TESTING
 )
 
diff --git a/ortools/base/gmock.h b/ortools/base/gmock.h
index 0720afc6df..0005f17ed8 100644
--- a/ortools/base/gmock.h
+++ b/ortools/base/gmock.h
@@ -16,7 +16,23 @@
 
 #include "absl/status/status_matchers.h"
 #include "ortools/base/gmock.h"
-#include "ortools/base/protocol-buffer-matchers.h"  // IWYU pragma: export
+#include "protobuf-matchers/protocol-buffer-matchers.h"
+
+namespace testing {
+using ::protobuf_matchers::EqualsProto;
+using ::protobuf_matchers::EquivToProto;
+namespace proto {
+using ::protobuf_matchers::proto::Approximately;
+using ::protobuf_matchers::proto::IgnoringFieldPaths;
+using ::protobuf_matchers::proto::IgnoringFields;
+using ::protobuf_matchers::proto::IgnoringRepeatedFieldOrdering;
+using ::protobuf_matchers::proto::Partially;
+using ::protobuf_matchers::proto::TreatingNaNsAsEqual;
+using ::protobuf_matchers::proto::WhenDeserialized;
+using ::protobuf_matchers::proto::WhenDeserializedAs;
+using ::protobuf_matchers::proto::WithDifferencerConfig;
+}  // namespace proto
+}  // namespace testing
 
 namespace testing::status {
 using ::absl_testing::IsOk;
diff --git a/ortools/base/protocol-buffer-matchers.cc b/ortools/base/protocol-buffer-matchers.cc
deleted file mode 100644
index bba51ab653..0000000000
--- a/ortools/base/protocol-buffer-matchers.cc
+++ /dev/null
@@ -1,396 +0,0 @@
-// Copyright 2010-2025 Google LLC
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// emulates g3/testing/base/public/gmock_utils/protocol-buffer-matchers.cc
-#include "ortools/base/protocol-buffer-matchers.h"
-
-#include <regex>
-
-#include "absl/log/check.h"
-#include "absl/log/log.h"
-#include "absl/strings/string_view.h"
-#include "google/protobuf/descriptor.h"
-#include "google/protobuf/io/tokenizer.h"
-#include "google/protobuf/message.h"
-#include "google/protobuf/text_format.h"
-#include "google/protobuf/util/message_differencer.h"
-
-namespace testing {
-namespace internal {
-// Utilities.
-class StringErrorCollector : public ::google::protobuf::io::ErrorCollector {
- public:
-  explicit StringErrorCollector(std::string* error_text)
-      : error_text_(error_text) {}
-
-  void RecordError(int line, int column, absl::string_view message) override {
-    std::ostringstream stream;
-    stream << line << '(' << column << "): " << message << std::endl;
-    *error_text_ += stream.str();
-  }
-
-  void RecordWarning(int line, int column, absl::string_view message) override {
-    std::ostringstream stream;
-    stream << line << '(' << column << "): " << message << std::endl;
-    *error_text_ += stream.str();
-  }
-
- private:
-  std::string* error_text_;
-  StringErrorCollector(const StringErrorCollector&) = delete;
-  StringErrorCollector& operator=(const StringErrorCollector&) = delete;
-};
-
-bool ParsePartialFromAscii(const std::string& pb_ascii,
-                           ::google::protobuf::Message* proto,
-                           std::string* error_text) {
-  ::google::protobuf::TextFormat::Parser parser;
-  StringErrorCollector collector(error_text);
-  parser.RecordErrorsTo(&collector);
-  parser.AllowPartialMessage(true);
-  return parser.ParseFromString(pb_ascii, proto);
-}
-
-// Returns true iff p and q can be compared (i.e. have the same descriptor).
-bool ProtoComparable(const ::google::protobuf::Message& p,
-                     const ::google::protobuf::Message& q) {
-  return p.GetDescriptor() == q.GetDescriptor();
-}
-
-template <typename Container>
-std::string JoinStringPieces(const Container& strings,
-                             absl::string_view separator) {
-  std::stringstream stream;
-  absl::string_view sep = "";
-  for (const absl::string_view str : strings) {
-    stream << sep << str;
-    sep = separator;
-  }
-  return stream.str();
-}
-
-// Find all the descriptors for the ingore_fields.
-std::vector<const ::google::protobuf::FieldDescriptor*> GetFieldDescriptors(
-    const ::google::protobuf::Descriptor* proto_descriptor,
-    const std::vector<std::string>& ignore_fields) {
-  std::vector<const ::google::protobuf::FieldDescriptor*> ignore_descriptors;
-  std::vector<absl::string_view> remaining_descriptors;
-
-  const ::google::protobuf::DescriptorPool* pool =
-      proto_descriptor->file()->pool();
-  for (const std::string& name : ignore_fields) {
-    if (const ::google::protobuf::FieldDescriptor* field =
-            pool->FindFieldByName(name)) {
-      ignore_descriptors.push_back(field);
-    } else {
-      remaining_descriptors.push_back(name);
-    }
-  }
-
-  CHECK(remaining_descriptors.empty())
-      << "Could not find fields for proto " << proto_descriptor->full_name()
-      << " with fully qualified names: "
-      << JoinStringPieces(remaining_descriptors, ",");
-  return ignore_descriptors;
-}
-
-// Sets the ignored fields corresponding to ignore_fields in differencer. Dies
-// if any is invalid.
-void SetIgnoredFieldsOrDie(
-    const ::google::protobuf::Descriptor& root_descriptor,
-    const std::vector<std::string>& ignore_fields,
-    ::google::protobuf::util::MessageDifferencer* differencer) {
-  if (!ignore_fields.empty()) {
-    std::vector<const ::google::protobuf::FieldDescriptor*> ignore_descriptors =
-        GetFieldDescriptors(&root_descriptor, ignore_fields);
-    for (std::vector<const ::google::protobuf::FieldDescriptor*>::iterator it =
-             ignore_descriptors.begin();
-         it != ignore_descriptors.end(); ++it) {
-      differencer->IgnoreField(*it);
-    }
-  }
-}
-
-// A criterion that ignores a field path.
-class IgnoreFieldPathCriteria
-    : public ::google::protobuf::util::MessageDifferencer::IgnoreCriteria {
- public:
-  explicit IgnoreFieldPathCriteria(
-      const std::vector<
-          ::google::protobuf::util::MessageDifferencer::SpecificField>&
-          field_path)
-      : ignored_field_path_(field_path) {}
-
-  bool IsIgnored(
-      const ::google::protobuf::Message& message1,
-      const ::google::protobuf::Message& message2,
-      const ::google::protobuf::FieldDescriptor* field,
-      const std::vector<
-          ::google::protobuf::util::MessageDifferencer::SpecificField>&
-          parent_fields) override {
-    // The off by one is for the current field.
-    if (parent_fields.size() + 1 != ignored_field_path_.size()) {
-      return false;
-    }
-    for (size_t i = 0; i < parent_fields.size(); ++i) {
-      const auto& cur_field = parent_fields[i];
-      const auto& ignored_field = ignored_field_path_[i];
-      // We could compare pointers but it's not guaranteed that descriptors come
-      // from the same pool.
-      if (cur_field.field->full_name() != ignored_field.field->full_name()) {
-        return false;
-      }
-
-      // repeated_field[i] is ignored if repeated_field is ignored. To put it
-      // differently: if ignored_field specifies an index, we ignore only a
-      // field with the same index.
-      if (ignored_field.index != -1 && ignored_field.index != cur_field.index) {
-        return false;
-      }
-    }
-    return field->full_name() == ignored_field_path_.back().field->full_name();
-  }
-
- private:
-  const std::vector<google::protobuf::util::MessageDifferencer::SpecificField>
-      ignored_field_path_;
-};
-
-// Parses a field path and returns individual components.
-std::vector<google::protobuf::util::MessageDifferencer::SpecificField>
-ParseFieldPathOrDie(const std::string& relative_field_path,
-                    const ::google::protobuf::Descriptor& root_descriptor) {
-  std::vector<google::protobuf::util::MessageDifferencer::SpecificField>
-      field_path;
-
-  // We're parsing a dot-separated list of elements that can be either:
-  //   - field names
-  //   - extension names
-  //   - indexed field names
-  // The parser is very permissive as to what is a field name, then we check
-  // the field name against the descriptor.
-
-  // Regular parsers. Consume() does not handle optional captures so we split it
-  // in two regexps.
-  const std::regex field_regex(R"(([^.()[\]]+))");
-  const std::regex field_subscript_regex(R"(([^.()[\]]+)\[(\d+)\])");
-  const std::regex extension_regex(R"(\(([^)]+)\))");
-
-  const auto begin = std::begin(relative_field_path);
-  auto it = begin;
-  const auto end = std::end(relative_field_path);
-  while (it != end) {
-    // Consume a dot, except on the first iteration.
-    if (it != std::begin(relative_field_path) && *(it++) != '.') {
-      LOG(FATAL) << "Cannot parse field path '" << relative_field_path
-                 << "' at offset " << std::distance(begin, it)
-                 << ": expected '.'";
-    }
-    // Try to consume a field name. If that fails, consume an extension name.
-    ::google::protobuf::util::MessageDifferencer::SpecificField field;
-    std::smatch match_results;
-    if (std::regex_search(it, end, match_results, field_subscript_regex) ||
-        std::regex_search(it, end, match_results, field_regex)) {
-      std::string name = match_results[1].str();
-      if (field_path.empty()) {
-        field.field = root_descriptor.FindFieldByName(name);
-        CHECK(field.field) << "No such field '" << name << "' in message '"
-                           << root_descriptor.full_name() << "'";
-      } else {
-        const ::google::protobuf::util::MessageDifferencer::SpecificField&
-            parent = field_path.back();
-        field.field = parent.field->message_type()->FindFieldByName(name);
-        CHECK(field.field) << "No such field '" << name << "' in '"
-                           << parent.field->full_name() << "'";
-      }
-      if (match_results.size() > 2 && match_results[2].matched) {
-        std::string number = match_results[2].str();
-        field.index = std::stoi(number);
-      }
-
-    } else if (std::regex_search(it, end, match_results, extension_regex)) {
-      std::string name = match_results[1].str();
-      field.field = ::google::protobuf::DescriptorPool::generated_pool()
-                        ->FindExtensionByName(name);
-      CHECK(field.field) << "No such extension '" << name << "'";
-      if (field_path.empty()) {
-        CHECK(root_descriptor.IsExtensionNumber(field.field->number()))
-            << "Extension '" << name << "' does not extend message '"
-            << root_descriptor.full_name() << "'";
-      } else {
-        const ::google::protobuf::util::MessageDifferencer::SpecificField&
-            parent = field_path.back();
-        CHECK(parent.field->message_type()->IsExtensionNumber(
-            field.field->number()))
-            << "Extension '" << name << "' does not extend '"
-            << parent.field->full_name() << "'";
-      }
-    } else {
-      LOG(FATAL) << "Cannot parse field path '" << relative_field_path
-                 << "' at offset " << std::distance(begin, it)
-                 << ": expected field or extension";
-    }
-    auto consume = match_results[0].length();
-    it += consume;
-    field_path.push_back(field);
-  }
-
-  CHECK(!field_path.empty());
-  CHECK(field_path.back().index == -1)
-      << "Terminally ignoring fields by index is currently not supported ('"
-      << relative_field_path << "')";
-
-  return field_path;
-}
-
-// Sets the ignored field paths corresponding to field_paths in differencer.
-// Dies if any path is invalid.
-void SetIgnoredFieldPathsOrDie(
-    const ::google::protobuf::Descriptor& root_descriptor,
-    const std::vector<std::string>& field_paths,
-    ::google::protobuf::util::MessageDifferencer* differencer) {
-  for (const std::string& field_path : field_paths) {
-    differencer->AddIgnoreCriteria(new IgnoreFieldPathCriteria(
-        ParseFieldPathOrDie(field_path, root_descriptor)));
-  }
-}
-
-// Configures a MessageDifferencer and DefaultFieldComparator to use the logic
-// described in comp. The configured differencer is the output of this function,
-// but a FieldComparator must be provided to keep ownership clear.
-void ConfigureDifferencer(
-    const ProtoComparison& comp,
-    ::google::protobuf::util::DefaultFieldComparator* comparator,
-    ::google::protobuf::util::MessageDifferencer* differencer,
-    const ::google::protobuf::Descriptor* descriptor) {
-  differencer->set_message_field_comparison(comp.field_comp);
-  differencer->set_scope(comp.scope);
-  comparator->set_float_comparison(comp.float_comp);
-  comparator->set_treat_nan_as_equal(comp.treating_nan_as_equal);
-  differencer->set_repeated_field_comparison(comp.repeated_field_comp);
-  SetIgnoredFieldsOrDie(*descriptor, comp.ignore_fields, differencer);
-  SetIgnoredFieldPathsOrDie(*descriptor, comp.ignore_field_paths, differencer);
-  if (comp.float_comp == kProtoApproximate &&
-      (comp.has_custom_margin || comp.has_custom_fraction)) {
-    // Two fields will be considered equal if they're within the fraction _or_
-    // within the margin. So setting the fraction to 0.0 makes this effectively
-    // a "SetMargin". Similarly, setting the margin to 0.0 makes this
-    // effectively a "SetFraction".
-    comparator->SetDefaultFractionAndMargin(comp.float_fraction,
-                                            comp.float_margin);
-  }
-  differencer->set_field_comparator(comparator);
-  if (comp.differencer_config_function) {
-    comp.differencer_config_function(comparator, differencer);
-  }
-}
-
-// Returns true iff actual and expected are comparable and match.  The
-// comp argument specifies how the two are compared.
-bool ProtoCompare(const ProtoComparison& comp,
-                  const ::google::protobuf::Message& actual,
-                  const ::google::protobuf::Message& expected) {
-  if (!ProtoComparable(actual, expected)) return false;
-
-  ::google::protobuf::util::MessageDifferencer differencer;
-  ::google::protobuf::util::DefaultFieldComparator field_comparator;
-  ConfigureDifferencer(comp, &field_comparator, &differencer,
-                       actual.GetDescriptor());
-
-  // It's important for 'expected' to be the first argument here, as
-  // Compare() is not symmetric.  When we do a partial comparison,
-  // only fields present in the first argument of Compare() are
-  // considered.
-  return differencer.Compare(expected, actual);
-}
-
-// Describes the types of the expected and the actual protocol buffer.
-std::string DescribeTypes(const ::google::protobuf::Message& expected,
-                          const ::google::protobuf::Message& actual) {
-  std::ostringstream s;
-  s << "whose type should be " << expected.GetDescriptor()->full_name()
-    << " but actually is " << actual.GetDescriptor()->full_name();
-  return s.str();
-}
-
-// Prints the protocol buffer pointed to by proto.
-std::string PrintProtoPointee(const ::google::protobuf::Message* proto) {
-  if (proto == nullptr) return "";
-  return "which points to " + ::testing::PrintToString(*proto);
-}
-
-// Describes the differences between the two protocol buffers.
-std::string DescribeDiff(const ProtoComparison& comp,
-                         const ::google::protobuf::Message& actual,
-                         const ::google::protobuf::Message& expected) {
-  ::google::protobuf::util::MessageDifferencer differencer;
-  ::google::protobuf::util::DefaultFieldComparator field_comparator;
-  ConfigureDifferencer(comp, &field_comparator, &differencer,
-                       actual.GetDescriptor());
-
-  std::string diff;
-  differencer.ReportDifferencesToString(&diff);
-
-  // We must put 'expected' as the first argument here, as Compare()
-  // reports the diff in terms of how the protobuf changes from the
-  // first argument to the second argument.
-  differencer.Compare(expected, actual);
-
-  // Removes the trailing '\n' in the diff to make the output look nicer.
-  if (diff.length() > 0 && *(diff.end() - 1) == '\n') {
-    diff.erase(diff.end() - 1);
-  }
-
-  return "with the difference:\n" + diff;
-}
-
-bool ProtoMatcherBase::MatchAndExplain(
-    const ::google::protobuf::Message& arg,
-    bool is_matcher_for_pointer,  // true iff this matcher is used to match
-                                  // a protobuf pointer.
-    ::testing::MatchResultListener* listener) const {
-  if (must_be_initialized_ && !arg.IsInitialized()) {
-    *listener << "which isn't fully initialized";
-    return false;
-  }
-
-  const google::protobuf::Message* const expected =
-      CreateExpectedProto(arg, listener);
-  if (expected == nullptr) return false;
-
-  // Protobufs of different types cannot be compared.
-  const bool comparable = ProtoComparable(arg, *expected);
-  const bool match = comparable && ProtoCompare(comp(), arg, *expected);
-
-  // Explaining the match result is expensive.  We don't want to waste
-  // time calculating an explanation if the listener isn't interested.
-  if (listener->IsInterested()) {
-    const char* sep = "";
-    if (is_matcher_for_pointer) {
-      *listener << PrintProtoPointee(&arg);
-      sep = ",\n";
-    }
-
-    if (!comparable) {
-      *listener << sep << DescribeTypes(*expected, arg);
-    } else if (!match) {
-      *listener << sep << DescribeDiff(comp(), arg, *expected);
-    }
-  }
-
-  DeleteExpectedProto(expected);
-  return match;
-}
-
-}  // namespace internal
-}  // namespace testing
diff --git a/ortools/base/protocol-buffer-matchers.h b/ortools/base/protocol-buffer-matchers.h
deleted file mode 100644
index 535027ab6c..0000000000
--- a/ortools/base/protocol-buffer-matchers.h
+++ /dev/null
@@ -1,473 +0,0 @@
-// Copyright 2010-2025 Google LLC
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// emulates g3/testing/base/public/gmock_utils/protocol-buffer-matchers.h
-#ifndef ORTOOLS_BASE_PROTOCOL_BUFFER_MATCHERS_H_
-#define ORTOOLS_BASE_PROTOCOL_BUFFER_MATCHERS_H_
-
-// gMock matchers used to validate protocol buffer arguments.
-
-// WHAT THIS IS
-// ============
-//
-// This library defines the following matchers in the ::protobuf_matchers
-// namespace:
-//
-//   EqualsProto(pb)              The argument equals pb.
-//   EquivToProto(pb)             The argument is equivalent to pb.
-//
-// where:
-//
-//   - pb can be either a protobuf value or a human-readable string
-//     representation of it.
-//   - When pb is a string, the matcher can optionally accept a
-//     template argument for the type of the protobuf,
-//     e.g. EqualsProto<Foo>("foo: 1").
-//   - "equals" is defined as the argument's Equals(pb) method returns true.
-//   - "equivalent to" is defined as the argument's Equivalent(pb) method
-//     returns true.
-//
-// These matchers can match either a protobuf value or a pointer to
-// it.  They make a copy of pb, and thus can out-live pb.  When the
-// match fails, the matchers print a detailed message (the value of
-// the actual protobuf, the value of the expected protobuf, and which
-// fields are different).
-//
-// EXAMPLES
-// ========
-//
-//   using ::protobuf_matchers::EqualsProto;
-//   using ::protobuf_matchers::EquivToProto;
-//
-//   // my_pb.Equals(expected_pb).
-//   EXPECT_THAT(my_pb, EqualsProto(expected_pb));
-//
-//   // my_pb is equivalent to a protobuf whose foo field is 1 and
-//   // whose bar field is "x".
-//   EXPECT_THAT(my_pb, EquivToProto("foo: 1 "
-//                                   "bar: 'x'"));
-
-#include <cstddef>
-#include <functional>
-#include <iomanip>
-#include <limits>
-#include <memory>
-#include <ostream>
-#include <sstream>
-#include <string>
-#include <vector>
-
-#include "absl/log/check.h"
-#include "absl/log/log.h"
-#include "absl/strings/string_view.h"
-#include "gmock/gmock-matchers.h"
-#include "google/protobuf/descriptor.h"
-#include "google/protobuf/message.h"
-#include "google/protobuf/util/message_differencer.h"
-#include "gtest/gtest.h"
-
-namespace testing {
-using DifferencerConfigFunction =
-    std::function<void(::google::protobuf::util::DefaultFieldComparator*,
-                       ::google::protobuf::util::MessageDifferencer*)>;
-namespace internal {
-// Utilities.
-// How to compare two fields (equal vs. equivalent).
-typedef ::google::protobuf::util::MessageDifferencer::MessageFieldComparison
-    ProtoFieldComparison;
-
-// How to compare two floating-points (exact vs. approximate).
-typedef ::google::protobuf::util::DefaultFieldComparator::FloatComparison
-    ProtoFloatComparison;
-
-// How to compare repeated fields (whether the order of elements matters).
-typedef ::google::protobuf::util::MessageDifferencer::RepeatedFieldComparison
-    RepeatedFieldComparison;
-
-// Whether to compare all fields (full) or only fields present in the
-// expected protobuf (partial).
-typedef ::google::protobuf::util::MessageDifferencer::Scope
-    ProtoComparisonScope;
-
-const ProtoFieldComparison kProtoEqual =
-    ::google::protobuf::util::MessageDifferencer::EQUAL;
-const ProtoFieldComparison kProtoEquiv =
-    ::google::protobuf::util::MessageDifferencer::EQUIVALENT;
-const ProtoFloatComparison kProtoExact =
-    ::google::protobuf::util::DefaultFieldComparator::EXACT;
-const ProtoFloatComparison kProtoApproximate =
-    ::google::protobuf::util::DefaultFieldComparator::APPROXIMATE;
-const RepeatedFieldComparison kProtoCompareRepeatedFieldsRespectOrdering =
-    ::google::protobuf::util::MessageDifferencer::AS_LIST;
-const RepeatedFieldComparison kProtoCompareRepeatedFieldsIgnoringOrdering =
-    ::google::protobuf::util::MessageDifferencer::AS_SET;
-const ProtoComparisonScope kProtoFull =
-    ::google::protobuf::util::MessageDifferencer::FULL;
-const ProtoComparisonScope kProtoPartial =
-    ::google::protobuf::util::MessageDifferencer::PARTIAL;
-
-// Options for comparing two protobufs.
-struct ProtoComparison {
-  ProtoComparison()
-      : field_comp(kProtoEqual),
-        float_comp(kProtoExact),
-        treating_nan_as_equal(false),
-        has_custom_margin(false),
-        has_custom_fraction(false),
-        repeated_field_comp(kProtoCompareRepeatedFieldsRespectOrdering),
-        scope(kProtoFull),
-        float_margin(0.0),
-        float_fraction(0.0) {}
-
-  ProtoFieldComparison field_comp;
-  ProtoFloatComparison float_comp;
-  bool treating_nan_as_equal;
-  bool has_custom_margin;    // only used when float_comp = APPROXIMATE
-  bool has_custom_fraction;  // only used when float_comp = APPROXIMATE
-  RepeatedFieldComparison repeated_field_comp;
-  ProtoComparisonScope scope;
-  double float_margin;    // only used when has_custom_margin is set.
-  double float_fraction;  // only used when has_custom_fraction is set.
-  std::vector<std::string> ignore_fields;
-  std::vector<std::string> ignore_field_paths;
-  DifferencerConfigFunction differencer_config_function;
-};
-
-// Whether the protobuf must be initialized.
-const bool kMustBeInitialized = true;
-const bool kMayBeUninitialized = false;
-
-// Parses the TextFormat representation of a protobuf, allowing required fields
-// to be missing.  Returns true if successful.
-bool ParsePartialFromAscii(const std::string& pb_ascii,
-                           ::google::protobuf::Message* proto,
-                           std::string* error_text);
-
-// Returns true iff p and q can be compared (i.e. have the same descriptor).
-bool ProtoComparable(const ::google::protobuf::Message& p,
-                     const ::google::protobuf::Message& q);
-
-// Returns true iff actual and expected are comparable and match.  The
-// comp argument specifies how the two are compared.
-bool ProtoCompare(const ProtoComparison& comp,
-                  const ::google::protobuf::Message& actual,
-                  const ::google::protobuf::Message& expected);
-
-// Describes the types of the expected and the actual protocol buffer.
-std::string DescribeTypes(const ::google::protobuf::Message& expected,
-                          const ::google::protobuf::Message& actual);
-// Prints the protocol buffer pointed to by proto.
-std::string PrintProtoPointee(const ::google::protobuf::Message* proto);
-
-// Describes the differences between the two protocol buffers.
-std::string DescribeDiff(const ProtoComparison& comp,
-                         const ::google::protobuf::Message& actual,
-                         const ::google::protobuf::Message& expected);
-// Common code for implementing EqualsProto and EquivToProto.
-class ProtoMatcherBase {
- public:
-  ProtoMatcherBase(
-      bool must_be_initialized,     // Must the argument be fully initialized?
-      const ProtoComparison& comp)  // How to compare the two protobufs.
-      : must_be_initialized_(must_be_initialized), comp_(new auto(comp)) {}
-
-  ProtoMatcherBase(const ProtoMatcherBase& other)
-      : must_be_initialized_(other.must_be_initialized_),
-        comp_(new auto(*other.comp_)) {}
-
-  ProtoMatcherBase(ProtoMatcherBase&& other) = default;
-
-  virtual ~ProtoMatcherBase() {}
-
-  // Prints the expected protocol buffer.
-  virtual void PrintExpectedTo(::std::ostream* os) const = 0;
-
-  // Returns the expected value as a protobuf object; if the object
-  // cannot be created (e.g. in ProtoStringMatcher), explains why to
-  // 'listener' and returns NULL.  The caller must call
-  // DeleteExpectedProto() on the returned value later.
-  virtual const ::google::protobuf::Message* CreateExpectedProto(
-      const ::google::protobuf::Message& arg,  // For determining the type of
-                                               // the expected protobuf.
-      ::testing::MatchResultListener* listener) const = 0;
-
-  // Deletes the given expected protobuf, which must be obtained from
-  // a call to CreateExpectedProto() earlier.
-  virtual void DeleteExpectedProto(
-      const ::google::protobuf::Message* expected) const = 0;
-
-  bool MatchAndExplain(const ::google::protobuf::Message& arg,
-                       ::testing::MatchResultListener* listener) const {
-    return MatchAndExplain(arg, false, listener);
-  }
-
-  bool MatchAndExplain(const ::google::protobuf::Message* arg,
-                       ::testing::MatchResultListener* listener) const {
-    return (arg != NULL) && MatchAndExplain(*arg, true, listener);
-  }
-
-  // Describes the expected relation between the actual protobuf and
-  // the expected one.
-  void DescribeRelationToExpectedProto(::std::ostream* os) const {
-    if (comp_->repeated_field_comp ==
-        kProtoCompareRepeatedFieldsIgnoringOrdering) {
-      *os << "(ignoring repeated field ordering) ";
-    }
-    if (!comp_->ignore_fields.empty()) {
-      *os << "(ignoring fields: ";
-      const char* sep = "";
-      for (size_t i = 0; i < comp_->ignore_fields.size(); ++i, sep = ", ")
-        *os << sep << comp_->ignore_fields[i];
-      *os << ") ";
-    }
-    if (comp_->float_comp == kProtoApproximate) {
-      *os << "approximately ";
-      if (comp_->has_custom_margin || comp_->has_custom_fraction) {
-        *os << "(";
-        if (comp_->has_custom_margin) {
-          std::stringstream ss;
-          ss << std::setprecision(std::numeric_limits<double>::digits10 + 2)
-             << comp_->float_margin;
-          *os << "absolute error of float or double fields <= " << ss.str();
-        }
-        if (comp_->has_custom_margin && comp_->has_custom_fraction) {
-          *os << " or ";
-        }
-        if (comp_->has_custom_fraction) {
-          std::stringstream ss;
-          ss << std::setprecision(std::numeric_limits<double>::digits10 + 2)
-             << comp_->float_fraction;
-          *os << "relative error of float or double fields <= " << ss.str();
-        }
-        *os << ") ";
-      }
-    }
-
-    if (comp_->differencer_config_function) {
-      *os << "(with custom differencer config) ";
-    }
-
-    *os << (comp_->scope == kProtoPartial ? "partially " : "")
-        << (comp_->field_comp == kProtoEqual ? "equal" : "equivalent")
-        << (comp_->treating_nan_as_equal ? " (treating NaNs as equal)" : "")
-        << " to ";
-    PrintExpectedTo(os);
-  }
-
-  void DescribeTo(::std::ostream* os) const {
-    *os << "is " << (must_be_initialized_ ? "fully initialized and " : "");
-    DescribeRelationToExpectedProto(os);
-  }
-
-  void DescribeNegationTo(::std::ostream* os) const {
-    *os << "is " << (must_be_initialized_ ? "not fully initialized or " : "")
-        << "not ";
-    DescribeRelationToExpectedProto(os);
-  }
-
-  bool must_be_initialized() const { return must_be_initialized_; }
-
-  const ProtoComparison& comp() const { return *comp_; }
-
- private:
-  bool MatchAndExplain(
-      const ::google::protobuf::Message& arg,
-      bool is_matcher_for_pointer,  // true iff this matcher is used to match a
-                                    // protobuf pointer.
-      ::testing::MatchResultListener* listener) const;
-
-  const bool must_be_initialized_;
-  std::unique_ptr<ProtoComparison> comp_;
-};
-
-// Returns a copy of the given proto2 message.
-inline ::google::protobuf::Message* CloneProto2(
-    const ::google::protobuf::Message& src) {
-  ::google::protobuf::Message* clone = src.New();
-  clone->CopyFrom(src);
-  return clone;
-}
-
-// Implements EqualsProto and EquivToProto where the matcher parameter is a
-// protobuf.
-class ProtoMatcher : public ProtoMatcherBase {
- public:
-  using MessageType = ::google::protobuf::Message;
-
-  ProtoMatcher(
-      const MessageType& expected,  // The expected protobuf.
-      bool must_be_initialized,     // Must the argument be fully initialized?
-      const ProtoComparison& comp)  // How to compare the two protobufs.
-      : ProtoMatcherBase(must_be_initialized, comp),
-        expected_(CloneProto2(expected)) {
-    if (must_be_initialized) {
-      CHECK(expected.IsInitialized())
-          << "The protocol buffer given to *InitializedProto() "
-          << "must itself be initialized, but the following required fields "
-          << "are missing: " << expected.InitializationErrorString() << ".";
-    }
-  }
-
-  virtual void PrintExpectedTo(::std::ostream* os) const {
-    *os << expected_->GetDescriptor()->full_name() << " ";
-    ::testing::internal::UniversalPrint(*expected_, os);
-  }
-
-  virtual const ::google::protobuf::Message* CreateExpectedProto(
-      const ::google::protobuf::Message& /* arg */,
-      ::testing::MatchResultListener* /* listener */) const {
-    return expected_.get();
-  }
-
-  virtual void DeleteExpectedProto(
-      const ::google::protobuf::Message* /* expected */) const {}
-
- private:
-  const std::shared_ptr<const MessageType> expected_;
-};
-
-using PolymorphicProtoMatcher = ::testing::PolymorphicMatcher<ProtoMatcher>;
-
-// Implements EqualsProto and EquivToProto where the matcher parameter is a
-// string.
-class ProtoStringMatcher : public ProtoMatcherBase {
- public:
-  using MessageType = ::google::protobuf::Message;
-
-  ProtoStringMatcher(
-      absl::string_view
-          expected,              // The text representing the expected protobuf.
-      bool must_be_initialized,  // Must the argument be fully initialized?
-      const ProtoComparison comp)  // How to compare the two protobufs.
-      : ProtoMatcherBase(must_be_initialized, comp),
-        expected_(std::string(expected)) {}
-
-  // Parses the expected string as a protobuf of the same type as arg,
-  // and returns the parsed protobuf (or NULL when the parse fails).
-  // The caller must call DeleteExpectedProto() on the return value
-  // later.
-  virtual const MessageType* CreateExpectedProto(
-      const MessageType& arg, ::testing::MatchResultListener* listener) const {
-    ::google::protobuf::Message* expected_proto = arg.New();
-    // We don't insist that the expected string parses as an
-    // *initialized* protobuf.  Otherwise EqualsProto("...") may
-    // wrongfully fail when the actual protobuf is not fully
-    // initialized.
-    std::string error_text;
-    if (ParsePartialFromAscii(expected_, expected_proto, &error_text)) {
-      return expected_proto;
-    } else {
-      delete expected_proto;
-      if (listener->IsInterested()) {
-        *listener << "where ";
-        PrintExpectedTo(listener->stream());
-        *listener << " doesn't parse as a " << arg.GetDescriptor()->full_name()
-                  << ":\n"
-                  << error_text;
-      }
-      return NULL;
-    }
-  }
-
-  virtual void DeleteExpectedProto(
-      const ::google::protobuf::Message* expected) const {
-    delete expected;
-  }
-
-  virtual void PrintExpectedTo(::std::ostream* os) const {
-    *os << "<" << expected_ << ">";
-  }
-
- private:
-  const std::string expected_;
-};
-
-}  // namespace internal
-
-// Constructs a matcher that matches the argument if
-// argument.Equals(m) or argument->Equals(m) returns true.
-inline internal::PolymorphicProtoMatcher EqualsProto(
-    const ::google::protobuf::Message& m) {
-  internal::ProtoComparison comp;
-  comp.field_comp = internal::kProtoEqual;
-  return ::testing::MakePolymorphicMatcher(
-      internal::ProtoMatcher(m, internal::kMayBeUninitialized, comp));
-}
-
-inline PolymorphicMatcher<internal::ProtoStringMatcher> EqualsProto(
-    absl::string_view m) {
-  internal::ProtoComparison comp;
-  comp.field_comp = internal::kProtoEqual;
-  return MakePolymorphicMatcher(
-      internal::ProtoStringMatcher(m, internal::kMayBeUninitialized, comp));
-}
-
-// for Pointwise
-MATCHER(EqualsProto, "") {
-  const auto& a = ::testing::get<0>(arg);
-  const auto& b = ::testing::get<1>(arg);
-  return ::testing::ExplainMatchResult(EqualsProto(b), a, result_listener);
-}
-
-// Constructs a matcher that matches the argument if
-// argument.Equivalent(m) or argument->Equivalent(m) returns true.
-inline internal::PolymorphicProtoMatcher EquivToProto(
-    const ::google::protobuf::Message& m) {
-  internal::ProtoComparison comp;
-  comp.field_comp = internal::kProtoEquiv;
-  return MakePolymorphicMatcher(
-      internal::ProtoMatcher(m, internal::kMayBeUninitialized, comp));
-}
-
-inline PolymorphicMatcher<internal::ProtoStringMatcher> EquivToProto(
-    absl::string_view m) {
-  internal::ProtoComparison comp;
-  comp.field_comp = internal::kProtoEquiv;
-  return MakePolymorphicMatcher(
-      internal::ProtoStringMatcher(m, internal::kMayBeUninitialized, comp));
-}
-
-// Returns a matcher that is the same as a given inner matcher, but applies a
-// given function to the message differencer before using it for the
-// comparison between the expected and actual protobufs.
-//
-// Prefer more specific transformer functions if possible; they result in
-// better error messages and more readable test code.
-//
-// By default, the differencer is configured to use the field comparator which
-// is also passed to the config function. It's possible to modify that
-// comparator, although it's preferable to customize it through other
-// transformers, e.g. Approximately.
-//
-// It's also possible to replace the comparator entirely, by passing it to
-// set_field_comparator() method of the provided differencer. The user retains
-// the ownership over the comparator and must guarantee that its lifetime
-// exceeds the lifetime of the matcher.
-//
-// The config function will be applied after any configuration settings
-// specified by other transformers. Overwriting these settings may result in
-// misleading test failure messages; in particular, a config function that
-// provides its own field comparator should not be used with transformers that
-// rely on the default comparator, i.e. Approximately and TreatingNaNsAsEqual.
-template <class InnerProtoMatcher>
-inline InnerProtoMatcher WithDifferencerConfig(
-    DifferencerConfigFunction differencer_config_function,
-    InnerProtoMatcher inner_proto_matcher) {
-  inner_proto_matcher.mutable_impl().SetDifferencerConfigFunction(
-      differencer_config_function);
-  return inner_proto_matcher;
-}
-
-}  // namespace testing
-
-#endif  // ORTOOLS_BASE_PROTOCOL_BUFFER_MATCHERS_H_
diff --git a/ortools/graph/BUILD.bazel b/ortools/graph/BUILD.bazel
index 9e7cd30795..ef25840c45 100644
--- a/ortools/graph/BUILD.bazel
+++ b/ortools/graph/BUILD.bazel
@@ -180,9 +180,8 @@ cc_library(
 
 cc_test(
     name = "bidirectional_dijkstra_test",
-    size = "small",
+    size = "medium",
     srcs = ["bidirectional_dijkstra_test.cc"],
-    tags = ["manual"],
     deps = [
         ":bidirectional_dijkstra",
         ":bounded_dijkstra",
@@ -776,7 +775,6 @@ cc_test(
     name = "dag_shortest_path_test",
     size = "small",
     srcs = ["dag_shortest_path_test.cc"],
-    tags = ["manual"],
     deps = [
         ":dag_shortest_path",
         "//ortools/base:dump_vars",
@@ -852,6 +850,7 @@ cc_library(
     name = "iterators",
     hdrs = ["iterators.h"],
     visibility = ["//visibility:public"],
+    deps = ["@abseil-cpp//absl/log:check"],
 )
 
 cc_test(
diff --git a/ortools/graph/CMakeLists.txt b/ortools/graph/CMakeLists.txt
index 976654252c..009a9e6d12 100644
--- a/ortools/graph/CMakeLists.txt
+++ b/ortools/graph/CMakeLists.txt
@@ -76,4 +76,10 @@ if(BUILD_TESTING)
     COMPILE_DEFINITIONS
     -DROOT_DIR="${CMAKE_SOURCE_DIR}"
   )
+
+  # These tests are too long so we disable them.
+  set_tests_properties(
+    cxx_graph_min_cost_flow_test
+    cxx_graph_bidirectional_dijkstra_test
+    PROPERTIES DISABLED TRUE)
 endif()
diff --git a/ortools/graph/samples/assignment_linear_sum_assignment.cc b/ortools/graph/samples/assignment_linear_sum_assignment.cc
index ba8a566010..75ccee5aae 100644
--- a/ortools/graph/samples/assignment_linear_sum_assignment.cc
+++ b/ortools/graph/samples/assignment_linear_sum_assignment.cc
@@ -15,7 +15,7 @@
 // [START import]
 #include "ortools/graph/assignment.h"
 
-#include <cstdint>
+#include <cstdlib>
 #include <numeric>
 #include <string>
 #include <vector>
diff --git a/ortools/math_opt/cpp/BUILD.bazel b/ortools/math_opt/cpp/BUILD.bazel
index 88ac229c0c..47d9e66cf8 100644
--- a/ortools/math_opt/cpp/BUILD.bazel
+++ b/ortools/math_opt/cpp/BUILD.bazel
@@ -137,8 +137,8 @@ cc_library(
 
 cc_test(
     name = "model_test",
+    size = "medium",
     srcs = ["model_test.cc"],
-    tags = ["manual"],
     deps = [
         ":key_types",
         ":linear_constraint",
@@ -215,6 +215,7 @@ cc_library(
 
 cc_test(
     name = "variable_and_expressions_test",
+    size = "medium",
     srcs = ["variable_and_expressions_test.cc"],
     deps = [
         ":matchers",
diff --git a/ortools/math_opt/cpp/CMakeLists.txt b/ortools/math_opt/cpp/CMakeLists.txt
index c24c50168e..77e11a4ab6 100644
--- a/ortools/math_opt/cpp/CMakeLists.txt
+++ b/ortools/math_opt/cpp/CMakeLists.txt
@@ -69,4 +69,11 @@ if(BUILD_TESTING)
         GTest::gtest_main
     )
   endforeach()
+
+  # These tests are too long so we disable them.
+  set_tests_properties(
+    cxx_math_opt_cpp_model_test
+    cxx_math_opt_cpp_variable_and_expressions_test
+    PROPERTIES DISABLED TRUE)
+
 endif()
diff --git a/ortools/math_opt/elemental/CMakeLists.txt b/ortools/math_opt/elemental/CMakeLists.txt
index c1fe79df97..dc1c3b1a13 100644
--- a/ortools/math_opt/elemental/CMakeLists.txt
+++ b/ortools/math_opt/elemental/CMakeLists.txt
@@ -29,23 +29,24 @@ target_link_libraries(${NAME} PRIVATE
   absl::strings
 )
 
-ortools_cxx_library(
-  NAME
-    math_opt_elemental_matcher
-  SOURCES
-    "elemental_matcher.cc"
-    "elemental_matcher.h"
-  TYPE
-    STATIC
-  LINK_LIBRARIES
-    absl::log
-    absl::status
-    absl::strings
-    GTest::gmock
-  TESTING
-)
-
 if(BUILD_TESTING)
+  ortools_cxx_library(
+    NAME
+      math_opt_elemental_matcher
+    SOURCES
+      "elemental_matcher.cc"
+      "elemental_matcher.h"
+    TYPE
+      STATIC
+    LINK_LIBRARIES
+      absl::log
+      absl::status
+      absl::strings
+      GTest::gmock
+      ortools::base_gmock
+    TESTING
+  )
+
   file(GLOB _TEST_SRCS "*_test.cc")
   list(FILTER _TEST_SRCS
     EXCLUDE REGEX "elemental_export_model_update_test.cc$")
diff --git a/ortools/math_opt/samples/python/BUILD.bazel b/ortools/math_opt/samples/python/BUILD.bazel
index b85d3cfcc1..25959a984e 100644
--- a/ortools/math_opt/samples/python/BUILD.bazel
+++ b/ortools/math_opt/samples/python/BUILD.bazel
@@ -99,6 +99,15 @@ py_binary(
     ],
 )
 
+py_binary(
+    name = "spillover",
+    srcs = ["spillover.py"],
+    deps = [
+        requirement("absl-py"),
+        "//ortools/math_opt/python:mathopt",
+    ],
+)
+
 py_binary(
     name = "time_indexed_scheduling",
     srcs = ["time_indexed_scheduling.py"],
diff --git a/ortools/math_opt/samples/python/spillover.py b/ortools/math_opt/samples/python/spillover.py
new file mode 100644
index 0000000000..3fd1cabfd2
--- /dev/null
+++ b/ortools/math_opt/samples/python/spillover.py
@@ -0,0 +1,323 @@
+#!/usr/bin/env python3
+# Copyright 2010-2025 Google LLC
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Solves the problem of buying physical machines to meet VM demand.
+
+The Spillover problem is defined as follows:
+
+You have M types of physical machines and V types of Virtual Machines (VMs). You
+can use a physical machine of type m to get n_mv copies of VM v. Each physical
+machine m has a cost of c_m. Each VM has a demand of d_v. VMs are assigned to
+physical machines by the following rule. The demand for each VM type arrives
+equally spaced out over the interval [0, 1]. For each VM type, there is a
+priority order over the physical machine types that you must follow. When a
+demand arrives, if there are any machines of the highest priority type
+available, you use them first, then you move on to the second priority machine
+type, and so on. Each VM type has a list of compatible physical machine types,
+and when the list is exhausted, the remaining demand is not met. Your goal is
+to pick quantities of the physical machines to buy (minimizing cost) so that at
+least 95% of the total demand of all VM is met.
+
+The number of machines bought of each type and the number of VMs demanded of
+each type is large enough that you can solve an approximate problem instead,
+where the number of machines purchased and the assignment of machines to VMs is
+fractional, if it is helpful to do so.
+
+Below, we give a linear programming solution to a continuous approximation of
+the spillover problem. Even for the continuous approximation, modeling it with
+LP (as opposed to MIP) is nontrivial.
+
+If for each VM type, the physical machines that are most cost effective are the
+highest priority, AND the target service level is 100%, then the problem has a
+trivial optimal solution:
+  1. Rank the VMs by lowest cost to meet a unit of demand with the #1 preferred
+     machine type.
+  2. For each VM type in the order above, buy machines from #1 preferred machine
+     type, until either you have met all demand for the VM type.
+
+The problem is not particularly interesting in isolation, it is more interesting
+to embed this LP inside a larger optimization problem (e.g. consider a two stage
+problem where in stage one, you buy machines, then in stage two, you realize VM
+demand).
+
+MOE:begin_strip
+This example is motivated by the Cloudy problem, see go/fluid-model.
+MOE:end_strip
+"""
+
+from collections.abc import Sequence
+import dataclasses
+import random
+
+from absl import app
+from absl import flags
+
+from ortools.math_opt.python import mathopt
+
+_MACHINE_TYPES = flags.DEFINE_integer(
+    "machine_types",
+    100,
+    "How many types of machines we can fulfill demand with.",
+)
+
+_VM_TYPES = flags.DEFINE_integer(
+    "vm_types", 500, "How many types of VMs we need to supply."
+)
+
+_FUNGIBILITY = flags.DEFINE_integer(
+    "fungibility",
+    10,
+    "Each VM type can be satisfied with this many machine types, selected"
+    " uniformly at random.",
+)
+
+_MAX_DEMAND = flags.DEFINE_integer(
+    "max_demand",
+    100,
+    "Demand for each VM type is in [max_demand//2, max_demand], uniformly at"
+    " random.",
+)
+
+_TEST_DATA = flags.DEFINE_bool(
+    "test_data", False, "Use small test instance instead of random data."
+)
+
+_SEED = flags.DEFINE_integer("seed", 13, "RNG seed for instance creation.")
+
+
+@dataclasses.dataclass(frozen=True)
+class MachineUse:
+    machine_type: int
+    vms_per_machine: int
+
+
+@dataclasses.dataclass(frozen=True)
+class VmDemand:
+    compatible_machines: tuple[MachineUse, ...]
+    vm_quantity: int
+
+
+@dataclasses.dataclass(frozen=True)
+class SpilloverProblem:
+    machine_cost: tuple[float, ...]
+    vm_demands: tuple[VmDemand, ...]
+    service_level: float
+
+
+def _random_spillover_problem(
+    num_machines: int,
+    num_vms: int,
+    fungibility: int,
+    max_vm_demand: int,
+) -> SpilloverProblem:
+    """Generates a random SpilloverProblem."""
+    machine_costs = tuple(random.random() for _ in range(num_machines))
+    vm_demands = []
+    all_machines = list(range(num_machines))
+    min_vm_demand = max_vm_demand // 2
+    for _ in range(num_vms):
+        machine_use = []
+        for machine in random.sample(all_machines, fungibility):
+            vms_per_machine = random.randint(1, 10)
+            machine_use.append(
+                MachineUse(machine_type=machine, vms_per_machine=vms_per_machine)
+            )
+        vm_demands.append(
+            VmDemand(
+                compatible_machines=tuple(machine_use),
+                vm_quantity=random.randint(min_vm_demand, max_vm_demand),
+            )
+        )
+    return SpilloverProblem(
+        machine_cost=machine_costs,
+        vm_demands=tuple(vm_demands),
+        service_level=0.95,
+    )
+
+
+def _test_problem() -> SpilloverProblem:
+    """Creates a small SpilloverProblem with optimal objective of 360."""
+    # To avoid machine type 2, ensure we buy enough of 1 to not stock out, cost 20
+    vm_a = VmDemand(
+        vm_quantity=10,
+        compatible_machines=(
+            MachineUse(machine_type=1, vms_per_machine=1),
+            MachineUse(machine_type=2, vms_per_machine=1),
+        ),
+    )
+    # machine type 0 is cheaper, but we don't want to stock out of machine type 1,
+    # so use all machine type 1, cost 40.
+    vm_b = VmDemand(
+        vm_quantity=20,
+        compatible_machines=(
+            MachineUse(machine_type=1, vms_per_machine=1),
+            MachineUse(machine_type=0, vms_per_machine=1),
+        ),
+    )
+    # Will use 3 copies of machine type 2, cost 300
+    vm_c = VmDemand(
+        vm_quantity=30,
+        compatible_machines=(MachineUse(machine_type=2, vms_per_machine=10),),
+    )
+    return SpilloverProblem(
+        machine_cost=(1.0, 2.0, 100.0),
+        vm_demands=(vm_a, vm_b, vm_c),
+        service_level=1.0,
+    )
+
+
+# Indices:
+#  * i in I, the VM demands
+#  * j in J, the machines supplied
+#
+# Data:
+#  * c_j: cost of a machine of type j
+#  * n_ij: how many VMs of type i you get from a machine of type j
+#  * d_i: the total demand for VMs of type i
+#  * service_level: the target fraction of demand that is met.
+#  * P_i subset J: the compatible machine types for VM demand i.
+#  * UP_i(j) subset P_i, for j in P_i: for VM demand type i, the machines of
+#    priority higher than j
+#
+# Decision variables:
+#  * s_j: the supply of machine type j
+#  * w_j: the time we run out of machine j, or 1 if we never run out
+#  * v_ij: when we start using supply j to meet demand i, or w_j if we never use
+#          this machine type for this demand.
+#  * o_i: the time we start failing to meet vm demand i
+#  * m_i: the total demand met for vm type i.
+#
+# Model the problem:
+#   min   sum_{j in J} c_j s_j
+#   s.t.
+#     1:  sum_i m_i >= service_level * sum_{i in I} d_i
+#     2:  m_i = o_i * d_i                                         for all i in I
+#     3:  v_ij >= w_r                     for all i in I, j in C_i, r in UP_i(j)
+#     4:  v_ij <= w_j                                   for all i in I, j in C_i
+#     5:  o_i = sum_{j in P_i} (w_j - v_ij)                       for all i in I
+#     6:  sum_{i in I: j in P_i} d_i / n_ij(w_j - v_ij) <= s_j    for all j in J
+#         o_i, w_j, v_ij in [0, 1]
+#         m_i, s_j >= 0
+#
+# The constraints say:
+#  1. The amount of demand served must be at least service_level fraction of
+#     total demand.
+#  2. The demand served for VM type i is linear in the time we fail to keep
+#     serving demand.
+#  3. Don't start using machine type j for demand i until all higher priority
+#     machine types r are used up.
+#  4. The time we run out of machine type j must be after we start using it for
+#     VM demand type i.
+#  5. The time we are unable to serve further VM demand i is the sum of the
+#     time spent serving the demand with each eligible machine type.
+#  6. The total use of machine type j to serve demand does not exceed the
+#     supply.
+def _solve_spillover_problem(problem: SpilloverProblem) -> None:
+    """Solves the spillover problem and prints the optimal objective."""
+    model = mathopt.Model()
+    num_machines = len(problem.machine_cost)
+    num_vms = len(problem.vm_demands)
+    s = [model.add_variable(lb=0) for _ in range(num_machines)]
+    w = [model.add_variable(lb=0, ub=1) for _ in range(num_machines)]
+    o = [model.add_variable(lb=0, ub=1) for _ in range(num_vms)]
+    m = [model.add_variable(lb=0) for _ in range(num_vms)]
+    v = [
+        {
+            compat.machine_type: model.add_variable(lb=0, ub=1)
+            for compat in vm_demand.compatible_machines
+        }
+        for vm_demand in problem.vm_demands
+    ]
+
+    obj = mathopt.LinearExpression()
+    for j in range(num_machines):
+        obj += s[j] * problem.machine_cost[j]
+    model.minimize(obj)
+
+    # Constraint 1: demand served is at least service_level fraction of total.
+    total_vm_demand = sum(vm_demand.vm_quantity for vm_demand in problem.vm_demands)
+    model.add_linear_constraint(
+        mathopt.fast_sum(m) >= problem.service_level * total_vm_demand
+    )
+
+    # Constraint 2: demand served is linear in time we stop serving.
+    for i in range(num_vms):
+        model.add_linear_constraint(m[i] == o[i] * problem.vm_demands[i].vm_quantity)
+
+    # Constraint 3: use machine type j for demand i after all higher priority
+    # machine types r are used up.
+    for i in range(num_vms):
+        for k, meet_demand in enumerate(problem.vm_demands[i].compatible_machines):
+            j = meet_demand.machine_type
+            for l in range(k):
+                r = problem.vm_demands[i].compatible_machines[l].machine_type
+                model.add_linear_constraint(v[i][j] >= w[r])
+
+    # Constraint 4: outage time of machine j is after start time for using j to
+    # meet VM demand i.
+    for i in range(num_vms):
+        for meet_demand in problem.vm_demands[i].compatible_machines:
+            j = meet_demand.machine_type
+            model.add_linear_constraint(v[i][j] <= w[j])
+
+    # Constraint 5: For VM demand i, time service ends is the sum of the time
+    # spent serving with each eligible machine type.
+    for i in range(num_vms):
+        sum_serving = mathopt.LinearExpression()
+        for meet_demand in problem.vm_demands[i].compatible_machines:
+            j = meet_demand.machine_type
+            sum_serving += w[j] - v[i][j]
+        model.add_linear_constraint(o[i] == sum_serving)
+
+    # Constraint 6: Total use of machine type j is at most the supply.
+    #
+    # We build the constraints in bulk because our data is transposed.
+    total_machine_use = [mathopt.LinearExpression() for _ in range(num_machines)]
+    for i in range(num_vms):
+        di = problem.vm_demands[i].vm_quantity
+        for meet_demand in problem.vm_demands[i].compatible_machines:
+            j = meet_demand.machine_type
+            nij = meet_demand.vms_per_machine
+            total_machine_use[j] += (di / float(nij)) * (w[j] - v[i][j])
+    for j in range(num_machines):
+        model.add_linear_constraint(total_machine_use[j] <= s[j])
+
+    result = mathopt.solve(
+        model,
+        mathopt.SolverType.GLOP,
+        params=mathopt.SolveParameters(enable_output=True),
+    )
+    if result.termination.reason != mathopt.TerminationReason.OPTIMAL:
+        raise RuntimeError(f"expected optimal, found: {result.termination}")
+    print(f"objective: {result.termination.objective_bounds.primal_bound}")
+
+
+def main(argv: Sequence[str]) -> None:
+    del argv  # Unused.
+    random.seed(_SEED.value)
+    if _TEST_DATA.value:
+        problem = _test_problem()
+    else:
+        problem = _random_spillover_problem(
+            _MACHINE_TYPES.value,
+            _VM_TYPES.value,
+            _FUNGIBILITY.value,
+            _MAX_DEMAND.value,
+        )
+
+    _solve_spillover_problem(problem)
+
+
+if __name__ == "__main__":
+    app.run(main)
diff --git a/ortools/math_opt/solvers/CMakeLists.txt b/ortools/math_opt/solvers/CMakeLists.txt
index 143207c13c..7bb72c8bbd 100644
--- a/ortools/math_opt/solvers/CMakeLists.txt
+++ b/ortools/math_opt/solvers/CMakeLists.txt
@@ -88,11 +88,9 @@ if(USE_SCIP)
       "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_second_order_cone_tests>"
       "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_status_tests>"
   )
-  if(MSVC)
-    # Test fail on windows, to investigate.
-    set_tests_properties(cxx_math_opt_solvers_gscip_solver_test
-      PROPERTIES DISABLED TRUE)
-  endif()
+  # This test fail on windows and takes too long so we disable it.
+  set_tests_properties(cxx_math_opt_solvers_gscip_solver_test
+    PROPERTIES DISABLED TRUE)
 endif()
 
 if(USE_GLOP)
@@ -149,7 +147,7 @@ ortools_cxx_test(
     "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_second_order_cone_tests>"
     "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_status_tests>"
 )
-# This test is too long so we currently disable it.
+# This test takes too long so we disable it.
 set_tests_properties(cxx_math_opt_solvers_cp_sat_solver_test
   PROPERTIES DISABLED TRUE)
 
@@ -249,11 +247,9 @@ if(USE_HIGHS)
       "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_multi_objective_tests>"
       "$<LINK_LIBRARY:WHOLE_ARCHIVE,ortools::math_opt_status_tests>"
   )
-  if(MSVC)
-    # Test fail on windows, to investigate.
-    set_tests_properties(cxx_math_opt_solvers_highs_solver_test
-      PROPERTIES DISABLED TRUE)
-  endif()
+  # This test fail on windows and takes too long so we disable it.
+  set_tests_properties(cxx_math_opt_solvers_highs_solver_test
+    PROPERTIES DISABLED TRUE)
 endif()
 
 if(USE_XPRESS)
diff --git a/ortools/pdlp/BUILD.bazel b/ortools/pdlp/BUILD.bazel
index 10283bda2a..187db82bda 100644
--- a/ortools/pdlp/BUILD.bazel
+++ b/ortools/pdlp/BUILD.bazel
@@ -34,8 +34,8 @@ cc_library(
 
 cc_test(
     name = "scheduler_test",
+    size = "medium",
     srcs = ["scheduler_test.cc"],
-    tags = ["manual"],
     deps = [
         ":scheduler",
         ":solvers_cc_proto",
@@ -95,8 +95,8 @@ cc_library(
 
 cc_test(
     name = "iteration_stats_test",
+    size = "medium",
     srcs = ["iteration_stats_test.cc"],
-    tags = ["manual"],
     deps = [
         ":iteration_stats",
         ":quadratic_program",
@@ -152,7 +152,6 @@ cc_test(
     name = "primal_dual_hybrid_gradient_test",
     size = "medium",
     srcs = ["primal_dual_hybrid_gradient_test.cc"],
-    tags = ["manual"],
     deps = [
         ":iteration_stats",
         ":primal_dual_hybrid_gradient",
@@ -254,9 +253,8 @@ cc_library(
 
 cc_test(
     name = "sharded_optimization_utils_test",
-    size = "small",
+    size = "medium",
     srcs = ["sharded_optimization_utils_test.cc"],
-    tags = ["manual"],
     deps = [
         ":quadratic_program",
         ":sharded_optimization_utils",
@@ -288,8 +286,8 @@ cc_library(
 
 cc_test(
     name = "sharded_quadratic_program_test",
+    size = "medium",
     srcs = ["sharded_quadratic_program_test.cc"],
-    tags = ["manual"],
     deps = [
         ":quadratic_program",
         ":sharded_quadratic_program",
@@ -319,9 +317,8 @@ cc_library(
 
 cc_test(
     name = "sharder_test",
-    size = "small",
+    size = "medium",
     srcs = ["sharder_test.cc"],
-    tags = ["manual"],
     deps = [
         ":scheduler",
         ":sharder",
@@ -430,8 +427,8 @@ cc_library(
 
 cc_test(
     name = "trust_region_test",
+    size = "medium",
     srcs = ["trust_region_test.cc"],
-    tags = ["manual"],
     deps = [
         ":quadratic_program",
         ":sharded_optimization_utils",
diff --git a/ortools/sat/BUILD.bazel b/ortools/sat/BUILD.bazel
index bd646ee91f..be9903df67 100644
--- a/ortools/sat/BUILD.bazel
+++ b/ortools/sat/BUILD.bazel
@@ -630,9 +630,8 @@ cc_library(
 
 cc_test(
     name = "cp_model_search_test",
-    size = "small",
+    size = "medium",
     srcs = ["cp_model_search_test.cc"],
-    tags = ["manual"],
     deps = [
         ":cp_model_cc_proto",
         ":cp_model_solver",
@@ -1241,12 +1240,9 @@ cc_library(
 
 cc_test(
     name = "cp_model_presolve_test",
-    size = "small",
+    size = "medium",
     srcs = ["cp_model_presolve_test.cc"],
-    tags = [
-        "manual",
-        "noautofuzz",
-    ],
+    tags = ["noautofuzz"],
     deps = [
         ":cp_model_cc_proto",
         ":cp_model_checker",
@@ -3614,6 +3610,7 @@ cc_library(
 
 cc_test(
     name = "2d_rectangle_presolve_test",
+    size = "medium",
     srcs = ["2d_rectangle_presolve_test.cc"],
     deps = [
         ":2d_orthogonal_packing_testing",
diff --git a/ortools/sat/CMakeLists.txt b/ortools/sat/CMakeLists.txt
index e49cc257ce..c5d5638094 100644
--- a/ortools/sat/CMakeLists.txt
+++ b/ortools/sat/CMakeLists.txt
@@ -57,6 +57,15 @@ if(BUILD_TESTING)
         GTest::gtest_main
     )
   endforeach()
+
+  # These tests are too long so we disable them.
+  set_tests_properties(
+    cxx_sat_2d_rectangle_presolve_test
+    cxx_sat_cp_model_presolve_random_test
+    cxx_sat_cp_model_presolve_test
+    cxx_sat_cp_model_search_test
+    cxx_sat_integer_expr_test
+    PROPERTIES DISABLED TRUE)
 endif()
 
 # Sat Runner
diff --git a/ortools/set_cover/CMakeLists.txt b/ortools/set_cover/CMakeLists.txt
index 3f83ed41e9..d52ea30a2f 100644
--- a/ortools/set_cover/CMakeLists.txt
+++ b/ortools/set_cover/CMakeLists.txt
@@ -14,6 +14,7 @@
 file(GLOB _SRCS "*.h" "*.cc")
 list(FILTER _SRCS EXCLUDE REGEX ".*/.*_test.cc")
 list(FILTER _SRCS EXCLUDE REGEX ".*/set_cover_solve.cc")
+list(FILTER _SRCS EXCLUDE REGEX ".*/formatting_helper.*")
 
 set(NAME ${PROJECT_NAME}_set_cover)
 
diff --git a/ortools/set_cover/python/set_cover_test.py b/ortools/set_cover/python/set_cover_test.py
index ee30263878..ee1ed4b9f5 100644
--- a/ortools/set_cover/python/set_cover_test.py
+++ b/ortools/set_cover/python/set_cover_test.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from absl import app
 from absl.testing import absltest
 
 from ortools.set_cover.python import set_cover
@@ -228,9 +227,5 @@ class SetCoverTest(absltest.TestCase):
     # KnightsCoverMip
 
 
-def main(_):
-    absltest.main()
-
-
 if __name__ == "__main__":
-    app.run(main)
+    absltest.main()
diff --git a/patches/protobuf-matchers-v0.1.1.patch b/patches/protobuf-matchers-v0.1.1.patch
new file mode 100644
index 0000000000..f13179a764
--- /dev/null
+++ b/patches/protobuf-matchers-v0.1.1.patch
@@ -0,0 +1,13 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 63f8581..9b7b207 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -5,7 +5,7 @@ list(APPEND CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR})
+ list(APPEND CMAKE_PREFIX_PATH ${CMAKE_BINARY_DIR})
+ 
+ find_package(Protobuf REQUIRED)
+-find_package(GTest REQUIRED)
++find_package(absl REQUIRED)
+ 
+ add_library(protobuf-matchers protobuf-matchers/protocol-buffer-matchers.cc)
+ target_include_directories(protobuf-matchers PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})