bazel: Run samples as test

ortools/algorithms/BUILD

@@ -14,7 +14,7 @@ cc_library(
 
 cc_test(
     name = "hungarian_test",
-    size = "medium",
+    size = "small",
     srcs = ["hungarian_test.cc"],
     copts = ["-Iexternal/gtest/include"],
     deps = [

ortools/algorithms/samples/code_samples.bzl

@@ -3,7 +3,17 @@ def code_sample_cc(sample):
       name = sample,
       srcs = [sample + ".cc"],
       deps = [
-          "//ortools/algorithms:knapsack_solver_lib",
+        "//ortools/algorithms:knapsack_solver_lib",
+      ],
+  )
+
+  native.cc_test(
+      name = sample+"_test",
+      size = "small",
+      srcs = [sample + ".cc"],
+      deps = [
+        ":"+sample,
+        "//ortools/algorithms:knapsack_solver_lib",
       ],
   )
 

ortools/constraint_solver/samples/code_samples.bzl

@@ -11,3 +11,17 @@ def code_sample_cc(sample):
       ],
   )
 
+  native.cc_test(
+      name = sample+"_test",
+      size = "small",
+      srcs = [sample + ".cc"],
+      deps = [
+        ":"+sample,
+        "//ortools/base",
+        "//ortools/constraint_solver:cp",
+        "//ortools/constraint_solver:routing",
+        "//ortools/constraint_solver:routing_enums_cc_proto",
+        "//ortools/constraint_solver:routing_flags",
+      ],
+  )
+

ortools/graph/samples/code_samples.bzl

@@ -12,3 +12,18 @@ def code_sample_cc(sample):
       ],
   )
 
+  native.cc_test(
+      name = sample+"_test",
+      size = "small",
+      srcs = [sample + ".cc"],
+      deps = [
+        ":"+sample,
+        "//ortools/base",
+        "//ortools/graph:min_cost_flow",
+        "//ortools/graph:max_flow",
+        "//ortools/graph:shortestpaths",
+        "//ortools/graph:ebert_graph",
+        "//ortools/graph:linear_assignment",
+      ],
+  )
+

ortools/linear_solver/samples/code_samples.bzl

@@ -9,3 +9,15 @@ def code_sample_cc(sample):
       ],
   )
 
+  native.cc_test(
+      name = sample+"_test",
+      size = "small",
+      srcs = [sample + ".cc"],
+      deps = [
+        ":"+sample,
+        "//ortools/base",
+        "//ortools/linear_solver",
+        "//ortools/linear_solver:linear_solver_cc_proto",
+      ],
+  )
+

ortools/sat/samples/code_samples.bzl

@@ -3,8 +3,19 @@ def code_sample_cc(sample):
       name = sample,
       srcs = [sample + ".cc"],
       deps = [
-          "//ortools/sat:cp_model",
-          "//ortools/sat:cp_model_solver",
+        "//ortools/sat:cp_model",
+        "//ortools/sat:cp_model_solver",
+      ],
+  )
+
+  native.cc_test(
+      name = sample+"_test",
+      size = "small",
+      srcs = [sample + ".cc"],
+      deps = [
+        ":"+sample,
+        "//ortools/sat:cp_model",
+        "//ortools/sat:cp_model_solver",
       ],
   )