sysbender / ModernCppUnit

• 1. ModernCppUnit
• 2. gtest primer
  • 2.1. basic concept
  • 2.2. assertion result -
  • 2.3. test
  • 2.4. test suite
  • 2.5. Test Fixtures: Using the Same Data Configuration for Multiple Tests
  • 2.6. invoke tests
  • 2.7. main()
• 3. setup
  • 3.1. install Ubuntu, build-essential
  • 3.2. cmake
  • 3.3. gtest

1. ModernCppUnit

2. gtest primer

2.1. basic concept

2.2. assertion result -

• succeed = success,
• failed =
  • nonfatal failure, = ASSERT_* : don't abort the function
  • fatal failure, = EXPECT_* : abort the function
  • crash

custom failure message

ASSERT_EQ(x.size(), y.size()) << "Vectors x and y are of unequal length";

for (int i = 0; i < x.size(); ++i) {
  EXPECT_EQ(x[i], y[i]) << "Vectors x and y differ at index " << i;
}

2.3. test

(testSuiteName, testName) - hould not contain any underscores (_)

2.4. test suite

2.5. Test Fixtures: Using the Same Data Configuration for Multiple Tests

//define texture
class MyTestTexture : public ::testing::Test {
 protected:
  void SetUp() override {
  //init
  }

  void TearDown() override {
    //deconstruction
  }

// use texture
TEST_F(MyTestTexture, MyTestName) {
  // assertions
}

2.6. invoke tests

RUN_ALL_TESTS(), which returns 0 if all the tests are successful, or 1 otherwise. Note that RUN_ALL_TESTS() runs all tests in your link unit–they can be from different test suites, or even different source files.

2.7. main()

Most users should not need to write their own main function and instead link with gtest_main (as opposed to with gtest), which defines a suitable entry point.

3. setup

3.1. install Ubuntu, build-essential

3.2. cmake

sudo apt install cmake

3.3. gtest

https://matgomes.com/integrate-google-test-into-cmake/#gtest-cmake-tldr https://github.com/matheusgomes28/cmake-google-tests