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