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[/] [s80186/] [trunk/] [vendor/] [googletest/] [googletest/] [test/] [gtest_environment_test.cc] - Rev 2

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// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
//
// Tests using global test environments.
 
#include <stdlib.h>
#include <stdio.h>
#include "gtest/gtest.h"
 
#define GTEST_IMPLEMENTATION_ 1  // Required for the next #include.
#include "src/gtest-internal-inl.h"
#undef GTEST_IMPLEMENTATION_
 
namespace testing {
GTEST_DECLARE_string_(filter);
}
 
namespace {
 
enum FailureType {
  NO_FAILURE, NON_FATAL_FAILURE, FATAL_FAILURE
};
 
// For testing using global test environments.
class MyEnvironment : public testing::Environment {
 public:
  MyEnvironment() { Reset(); }
 
  // Depending on the value of failure_in_set_up_, SetUp() will
  // generate a non-fatal failure, generate a fatal failure, or
  // succeed.
  virtual void SetUp() {
    set_up_was_run_ = true;
 
    switch (failure_in_set_up_) {
      case NON_FATAL_FAILURE:
        ADD_FAILURE() << "Expected non-fatal failure in global set-up.";
        break;
      case FATAL_FAILURE:
        FAIL() << "Expected fatal failure in global set-up.";
        break;
      default:
        break;
    }
  }
 
  // Generates a non-fatal failure.
  virtual void TearDown() {
    tear_down_was_run_ = true;
    ADD_FAILURE() << "Expected non-fatal failure in global tear-down.";
  }
 
  // Resets the state of the environment s.t. it can be reused.
  void Reset() {
    failure_in_set_up_ = NO_FAILURE;
    set_up_was_run_ = false;
    tear_down_was_run_ = false;
  }
 
  // We call this function to set the type of failure SetUp() should
  // generate.
  void set_failure_in_set_up(FailureType type) {
    failure_in_set_up_ = type;
  }
 
  // Was SetUp() run?
  bool set_up_was_run() const { return set_up_was_run_; }
 
  // Was TearDown() run?
  bool tear_down_was_run() const { return tear_down_was_run_; }
 
 private:
  FailureType failure_in_set_up_;
  bool set_up_was_run_;
  bool tear_down_was_run_;
};
 
// Was the TEST run?
bool test_was_run;
 
// The sole purpose of this TEST is to enable us to check whether it
// was run.
TEST(FooTest, Bar) {
  test_was_run = true;
}
 
// Prints the message and aborts the program if condition is false.
void Check(bool condition, const char* msg) {
  if (!condition) {
    printf("FAILED: %s\n", msg);
    testing::internal::posix::Abort();
  }
}
 
// Runs the tests.  Return true iff successful.
//
// The 'failure' parameter specifies the type of failure that should
// be generated by the global set-up.
int RunAllTests(MyEnvironment* env, FailureType failure) {
  env->Reset();
  env->set_failure_in_set_up(failure);
  test_was_run = false;
  testing::internal::GetUnitTestImpl()->ClearAdHocTestResult();
  return RUN_ALL_TESTS();
}
 
}  // namespace
 
int main(int argc, char **argv) {
  testing::InitGoogleTest(&argc, argv);
 
  // Registers a global test environment, and verifies that the
  // registration function returns its argument.
  MyEnvironment* const env = new MyEnvironment;
  Check(testing::AddGlobalTestEnvironment(env) == env,
        "AddGlobalTestEnvironment() should return its argument.");
 
  // Verifies that RUN_ALL_TESTS() runs the tests when the global
  // set-up is successful.
  Check(RunAllTests(env, NO_FAILURE) != 0,
        "RUN_ALL_TESTS() should return non-zero, as the global tear-down "
        "should generate a failure.");
  Check(test_was_run,
        "The tests should run, as the global set-up should generate no "
        "failure");
  Check(env->tear_down_was_run(),
        "The global tear-down should run, as the global set-up was run.");
 
  // Verifies that RUN_ALL_TESTS() runs the tests when the global
  // set-up generates no fatal failure.
  Check(RunAllTests(env, NON_FATAL_FAILURE) != 0,
        "RUN_ALL_TESTS() should return non-zero, as both the global set-up "
        "and the global tear-down should generate a non-fatal failure.");
  Check(test_was_run,
        "The tests should run, as the global set-up should generate no "
        "fatal failure.");
  Check(env->tear_down_was_run(),
        "The global tear-down should run, as the global set-up was run.");
 
  // Verifies that RUN_ALL_TESTS() runs no test when the global set-up
  // generates a fatal failure.
  Check(RunAllTests(env, FATAL_FAILURE) != 0,
        "RUN_ALL_TESTS() should return non-zero, as the global set-up "
        "should generate a fatal failure.");
  Check(!test_was_run,
        "The tests should not run, as the global set-up should generate "
        "a fatal failure.");
  Check(env->tear_down_was_run(),
        "The global tear-down should run, as the global set-up was run.");
 
  // Verifies that RUN_ALL_TESTS() doesn't do global set-up or
  // tear-down when there is no test to run.
  testing::GTEST_FLAG(filter) = "-*";
  Check(RunAllTests(env, NO_FAILURE) == 0,
        "RUN_ALL_TESTS() should return zero, as there is no test to run.");
  Check(!env->set_up_was_run(),
        "The global set-up should not run, as there is no test to run.");
  Check(!env->tear_down_was_run(),
        "The global tear-down should not run, "
        "as the global set-up was not run.");
 
  printf("PASS\n");
  return 0;
}
 

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