gmock_leak_test_.cc

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// Author: wan@google.com (Zhanyong Wan)
 
// Google Mock - a framework for writing C++ mock classes.
//
// This program is for verifying that a leaked mock object can be
// caught by Google Mock's leak detector.
 
#include "gmock/gmock.h"
 
namespace {
 
using ::testing::Return;
 
class FooInterface {
 public:
  virtual ~FooInterface() {}
  virtual void DoThis() = 0;
};
 
class MockFoo : public FooInterface {
 public:
  MockFoo() {}
 
  MOCK_METHOD0(DoThis, void());
 
 private:
  GTEST_DISALLOW_COPY_AND_ASSIGN_(MockFoo);
};
 
TEST(LeakTest, LeakedMockWithExpectCallCausesFailureWhenLeakCheckingIsEnabled) {
  MockFoo* foo = new MockFoo;
 
  EXPECT_CALL(*foo, DoThis());
  foo->DoThis();
 
  // In order to test the leak detector, we deliberately leak foo.
 
  // Makes sure Google Mock's leak detector can change the exit code
  // to 1 even when the code is already exiting with 0.
  exit(0);
}
 
TEST(LeakTest, LeakedMockWithOnCallCausesFailureWhenLeakCheckingIsEnabled) {
  MockFoo* foo = new MockFoo;
 
  ON_CALL(*foo, DoThis()).WillByDefault(Return());
 
  // In order to test the leak detector, we deliberately leak foo.
 
  // Makes sure Google Mock's leak detector can change the exit code
  // to 1 even when the code is already exiting with 0.
  exit(0);
}
 
TEST(LeakTest, CatchesMultipleLeakedMockObjects) {
  MockFoo* foo1 = new MockFoo;
  MockFoo* foo2 = new MockFoo;
 
  ON_CALL(*foo1, DoThis()).WillByDefault(Return());
  EXPECT_CALL(*foo2, DoThis());
  foo2->DoThis();
 
  // In order to test the leak detector, we deliberately leak foo1 and
  // foo2.
 
  // Makes sure Google Mock's leak detector can change the exit code
  // to 1 even when the code is already exiting with 0.
  exit(0);
}
 
}  // namespace