tor-browser

sample9_unittest.cc (5925B)

---

// Copyright 2009 Google Inc. All Rights Reserved.
//
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// 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
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// This sample shows how to use Google Test listener API to implement
// an alternative console output and how to use the UnitTest reflection API
// to enumerate test cases and tests and to inspect their results.

#include <stdio.h>

#include "gtest/gtest.h"

using ::testing::EmptyTestEventListener;
using ::testing::InitGoogleTest;
using ::testing::Test;
using ::testing::TestCase;
using ::testing::TestEventListeners;
using ::testing::TestInfo;
using ::testing::TestPartResult;
using ::testing::UnitTest;
namespace {
// Provides alternative output mode which produces minimal amount of
// information about tests.
class TersePrinter : public EmptyTestEventListener {
private:
 // Called before any test activity starts.
 void OnTestProgramStart(const UnitTest& /* unit_test */) override {}

 // Called after all test activities have ended.
 void OnTestProgramEnd(const UnitTest& unit_test) override {
   fprintf(stdout, "TEST %s\n", unit_test.Passed() ? "PASSED" : "FAILED");
   fflush(stdout);
 }

 // Called before a test starts.
 void OnTestStart(const TestInfo& test_info) override {
   fprintf(stdout,
           "*** Test %s.%s starting.\n",
           test_info.test_case_name(),
           test_info.name());
   fflush(stdout);
 }

 // Called after a failed assertion or a SUCCEED() invocation.
 void OnTestPartResult(const TestPartResult& test_part_result) override {
   fprintf(stdout,
           "%s in %s:%d\n%s\n",
           test_part_result.failed() ? "*** Failure" : "Success",
           test_part_result.file_name(),
           test_part_result.line_number(),
           test_part_result.summary());
   fflush(stdout);
 }

 // Called after a test ends.
 void OnTestEnd(const TestInfo& test_info) override {
   fprintf(stdout,
           "*** Test %s.%s ending.\n",
           test_info.test_case_name(),
           test_info.name());
   fflush(stdout);
 }
};  // class TersePrinter

TEST(CustomOutputTest, PrintsMessage) {
 printf("Printing something from the test body...\n");
}

TEST(CustomOutputTest, Succeeds) {
 SUCCEED() << "SUCCEED() has been invoked from here";
}

TEST(CustomOutputTest, Fails) {
 EXPECT_EQ(1, 2)
     << "This test fails in order to demonstrate alternative failure messages";
}
}  // namespace

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

 bool terse_output = false;
 if (argc > 1 && strcmp(argv[1], "--terse_output") == 0 )
   terse_output = true;
 else
   printf("%s\n", "Run this program with --terse_output to change the way "
          "it prints its output.");

 UnitTest& unit_test = *UnitTest::GetInstance();

 // If we are given the --terse_output command line flag, suppresses the
 // standard output and attaches own result printer.
 if (terse_output) {
   TestEventListeners& listeners = unit_test.listeners();

   // Removes the default console output listener from the list so it will
   // not receive events from Google Test and won't print any output. Since
   // this operation transfers ownership of the listener to the caller we
   // have to delete it as well.
   delete listeners.Release(listeners.default_result_printer());

   // Adds the custom output listener to the list. It will now receive
   // events from Google Test and print the alternative output. We don't
   // have to worry about deleting it since Google Test assumes ownership
   // over it after adding it to the list.
   listeners.Append(new TersePrinter);
 }
 int ret_val = RUN_ALL_TESTS();

 // This is an example of using the UnitTest reflection API to inspect test
 // results. Here we discount failures from the tests we expected to fail.
 int unexpectedly_failed_tests = 0;
 for (int i = 0; i < unit_test.total_test_suite_count(); ++i) {
   const testing::TestSuite& test_suite = *unit_test.GetTestSuite(i);
   for (int j = 0; j < test_suite.total_test_count(); ++j) {
     const TestInfo& test_info = *test_suite.GetTestInfo(j);
     // Counts failed tests that were not meant to fail (those without
     // 'Fails' in the name).
     if (test_info.result()->Failed() &&
         strcmp(test_info.name(), "Fails") != 0) {
       unexpectedly_failed_tests++;
     }
   }
 }

 // Test that were meant to fail should not affect the test program outcome.
 if (unexpectedly_failed_tests == 0)
   ret_val = 0;

 return ret_val;
}