ls-standard-library/test/lib/googletest-1.11.0/googletest/test/googletest-global-environment-unittest_.cc

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// Unit test for Google Test global test environments.
//
// The program will be invoked from a Python unit test.  Don't run it
// directly.

#include "gtest/gtest.h"

namespace {

// An environment that always fails in its SetUp method.
class FailingEnvironment final : public ::testing::Environment {
 public:
  void SetUp() override { FAIL() << "Canned environment setup error"; }
};

// Register the environment.
auto* const g_environment_ =
    ::testing::AddGlobalTestEnvironment(new FailingEnvironment);

// A test that doesn't actually run.
TEST(SomeTest, DoesFoo) { FAIL() << "Unexpected call"; }

}  // namespace

int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);

  return RUN_ALL_TESTS();
}