1. Assertions

• EXPECT_*

  Do not interrupt when encountering an error

• ASSERT_*

  Interrupt when encountering an error

• User-defined error message

  e.g. EXPECT_EQ(x, y) << "x and y are unequal"

2. Assertions Reference

• include <gtest/gtest.h>
• An assertion of wide string will be translate to UTF-8

2.1. Boolean Comparison

• suffix
  • TRUE
  • FALSE
• usage
  • ASSERT_TRUE (condition)
  • EXPECT_FALSE (condition)
• range
  • bool

2.2. Binary Comparison

• suffix
  • $=$ EQ
  • $\ne$ NE
  • $\lt$ LT
  • $\le$ LE
  • $\gt$ GT
  • $\ge$ GE
• usage
  • EXPECT_EQ (var1, var2)
  • ASSERT_EQ (var1, var2)
• range
  • int
  • char
  • pointer

2.3. String Comparison

• suffix
  • $=$ EQ
  • $\ne$ NE
  • $= ignore\ case$ CASEEQ
  • $\ne ignore\ case$ CASENE
  • $\gt$ GT
  • $\ge$ GE
• usage
  • EXPECT_STREQ (str1, str2)
  • ASSERT_STREQ (str1, str2)
• range
  • char*
  • wchar_t*

2.4. Float&Double Comparison

• suffix
  • $=$ EQ
  • $$\le abs_error$ NEAR
• usage
  • EXPECT_FLOAT_EQ (var1, var2)
  • EXPECT_NEAR (var1, var2, abs_err)
• range
  • float
  • double
  • int

3. Test Fixture

• purpose
  • share variables and configurations
• usage

class C : public ::testing::Test {
protected:
 void SetUp() override;
 void TearDown() override;
}
TEST_F(C, case_name) {
    // details..
}

4. Main

int main(int argc, char** argv) {
  testing::InitGoogleTest(&argc, argv);
  GTEST_FLAG_SET(death_test_style, "fast");
  return RUN_ALL_TESTS();
}

5. Reference

1. Googletest Primer GoogleTest Primer _ GoogleTest.html
2. Advanced GoogleTest Topics _ GoogleTest.html
3. gMock for Dummies _ GoogleTest.html
4. Advanced GoogleTest Topics _ GoogleTest.html
5. gMock Cheat Sheet _ GoogleTest.html