1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/webrtc/trunk/testing/gtest/test/gtest_environment_test.cc Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,192 @@
1.4 +// Copyright 2007, Google Inc.
1.5 +// All rights reserved.
1.6 +//
1.7 +// Redistribution and use in source and binary forms, with or without
1.8 +// modification, are permitted provided that the following conditions are
1.9 +// met:
1.10 +//
1.11 +// * Redistributions of source code must retain the above copyright
1.12 +// notice, this list of conditions and the following disclaimer.
1.13 +// * Redistributions in binary form must reproduce the above
1.14 +// copyright notice, this list of conditions and the following disclaimer
1.15 +// in the documentation and/or other materials provided with the
1.16 +// distribution.
1.17 +// * Neither the name of Google Inc. nor the names of its
1.18 +// contributors may be used to endorse or promote products derived from
1.19 +// this software without specific prior written permission.
1.20 +//
1.21 +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
1.22 +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
1.23 +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
1.24 +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
1.25 +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1.26 +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
1.27 +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
1.28 +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
1.29 +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
1.30 +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.31 +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.32 +//
1.33 +// Author: wan@google.com (Zhanyong Wan)
1.34 +//
1.35 +// Tests using global test environments.
1.36 +
1.37 +#include <stdlib.h>
1.38 +#include <stdio.h>
1.39 +#include "gtest/gtest.h"
1.40 +
1.41 +#define GTEST_IMPLEMENTATION_ 1 // Required for the next #include.
1.42 +#include "src/gtest-internal-inl.h"
1.43 +#undef GTEST_IMPLEMENTATION_
1.44 +
1.45 +namespace testing {
1.46 +GTEST_DECLARE_string_(filter);
1.47 +}
1.48 +
1.49 +namespace {
1.50 +
1.51 +enum FailureType {
1.52 + NO_FAILURE, NON_FATAL_FAILURE, FATAL_FAILURE
1.53 +};
1.54 +
1.55 +// For testing using global test environments.
1.56 +class MyEnvironment : public testing::Environment {
1.57 + public:
1.58 + MyEnvironment() { Reset(); }
1.59 +
1.60 + // Depending on the value of failure_in_set_up_, SetUp() will
1.61 + // generate a non-fatal failure, generate a fatal failure, or
1.62 + // succeed.
1.63 + virtual void SetUp() {
1.64 + set_up_was_run_ = true;
1.65 +
1.66 + switch (failure_in_set_up_) {
1.67 + case NON_FATAL_FAILURE:
1.68 + ADD_FAILURE() << "Expected non-fatal failure in global set-up.";
1.69 + break;
1.70 + case FATAL_FAILURE:
1.71 + FAIL() << "Expected fatal failure in global set-up.";
1.72 + break;
1.73 + default:
1.74 + break;
1.75 + }
1.76 + }
1.77 +
1.78 + // Generates a non-fatal failure.
1.79 + virtual void TearDown() {
1.80 + tear_down_was_run_ = true;
1.81 + ADD_FAILURE() << "Expected non-fatal failure in global tear-down.";
1.82 + }
1.83 +
1.84 + // Resets the state of the environment s.t. it can be reused.
1.85 + void Reset() {
1.86 + failure_in_set_up_ = NO_FAILURE;
1.87 + set_up_was_run_ = false;
1.88 + tear_down_was_run_ = false;
1.89 + }
1.90 +
1.91 + // We call this function to set the type of failure SetUp() should
1.92 + // generate.
1.93 + void set_failure_in_set_up(FailureType type) {
1.94 + failure_in_set_up_ = type;
1.95 + }
1.96 +
1.97 + // Was SetUp() run?
1.98 + bool set_up_was_run() const { return set_up_was_run_; }
1.99 +
1.100 + // Was TearDown() run?
1.101 + bool tear_down_was_run() const { return tear_down_was_run_; }
1.102 +
1.103 + private:
1.104 + FailureType failure_in_set_up_;
1.105 + bool set_up_was_run_;
1.106 + bool tear_down_was_run_;
1.107 +};
1.108 +
1.109 +// Was the TEST run?
1.110 +bool test_was_run;
1.111 +
1.112 +// The sole purpose of this TEST is to enable us to check whether it
1.113 +// was run.
1.114 +TEST(FooTest, Bar) {
1.115 + test_was_run = true;
1.116 +}
1.117 +
1.118 +// Prints the message and aborts the program if condition is false.
1.119 +void Check(bool condition, const char* msg) {
1.120 + if (!condition) {
1.121 + printf("FAILED: %s\n", msg);
1.122 + testing::internal::posix::Abort();
1.123 + }
1.124 +}
1.125 +
1.126 +// Runs the tests. Return true iff successful.
1.127 +//
1.128 +// The 'failure' parameter specifies the type of failure that should
1.129 +// be generated by the global set-up.
1.130 +int RunAllTests(MyEnvironment* env, FailureType failure) {
1.131 + env->Reset();
1.132 + env->set_failure_in_set_up(failure);
1.133 + test_was_run = false;
1.134 + testing::internal::GetUnitTestImpl()->ClearAdHocTestResult();
1.135 + return RUN_ALL_TESTS();
1.136 +}
1.137 +
1.138 +} // namespace
1.139 +
1.140 +int main(int argc, char **argv) {
1.141 + testing::InitGoogleTest(&argc, argv);
1.142 +
1.143 + // Registers a global test environment, and verifies that the
1.144 + // registration function returns its argument.
1.145 + MyEnvironment* const env = new MyEnvironment;
1.146 + Check(testing::AddGlobalTestEnvironment(env) == env,
1.147 + "AddGlobalTestEnvironment() should return its argument.");
1.148 +
1.149 + // Verifies that RUN_ALL_TESTS() runs the tests when the global
1.150 + // set-up is successful.
1.151 + Check(RunAllTests(env, NO_FAILURE) != 0,
1.152 + "RUN_ALL_TESTS() should return non-zero, as the global tear-down "
1.153 + "should generate a failure.");
1.154 + Check(test_was_run,
1.155 + "The tests should run, as the global set-up should generate no "
1.156 + "failure");
1.157 + Check(env->tear_down_was_run(),
1.158 + "The global tear-down should run, as the global set-up was run.");
1.159 +
1.160 + // Verifies that RUN_ALL_TESTS() runs the tests when the global
1.161 + // set-up generates no fatal failure.
1.162 + Check(RunAllTests(env, NON_FATAL_FAILURE) != 0,
1.163 + "RUN_ALL_TESTS() should return non-zero, as both the global set-up "
1.164 + "and the global tear-down should generate a non-fatal failure.");
1.165 + Check(test_was_run,
1.166 + "The tests should run, as the global set-up should generate no "
1.167 + "fatal failure.");
1.168 + Check(env->tear_down_was_run(),
1.169 + "The global tear-down should run, as the global set-up was run.");
1.170 +
1.171 + // Verifies that RUN_ALL_TESTS() runs no test when the global set-up
1.172 + // generates a fatal failure.
1.173 + Check(RunAllTests(env, FATAL_FAILURE) != 0,
1.174 + "RUN_ALL_TESTS() should return non-zero, as the global set-up "
1.175 + "should generate a fatal failure.");
1.176 + Check(!test_was_run,
1.177 + "The tests should not run, as the global set-up should generate "
1.178 + "a fatal failure.");
1.179 + Check(env->tear_down_was_run(),
1.180 + "The global tear-down should run, as the global set-up was run.");
1.181 +
1.182 + // Verifies that RUN_ALL_TESTS() doesn't do global set-up or
1.183 + // tear-down when there is no test to run.
1.184 + testing::GTEST_FLAG(filter) = "-*";
1.185 + Check(RunAllTests(env, NO_FAILURE) == 0,
1.186 + "RUN_ALL_TESTS() should return zero, as there is no test to run.");
1.187 + Check(!env->set_up_was_run(),
1.188 + "The global set-up should not run, as there is no test to run.");
1.189 + Check(!env->tear_down_was_run(),
1.190 + "The global tear-down should not run, "
1.191 + "as the global set-up was not run.");
1.192 +
1.193 + printf("PASS\n");
1.194 + return 0;
1.195 +}
