gtest宏列表_指定宏怎么用
简介
总结gtest中的所有断言相关的宏。 gtest中，断言的宏可以理解为分为两类，一类是ASSERT系列，一类是EXPECT系列。一个直观的解释就是：
- ASSERT_* 系列的断言，当检查点失败时，退出当前函数（注意：并非退出当前案例）。
- EXPECT_* 系列的断言，当检查点失败时，继续往下执行。
布尔值检查
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_TRUE(condition); | EXPECT_TRUE(condition); | condition is true |
ASSERT_FALSE(condition); | EXPECT_FALSE(condition); | condition is false |
数值型数据检查
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_EQ(expected, actual); | EXPECT_EQ(expected, actual); | expected == actual |
ASSERT_NE(val1, val2); | EXPECT_NE(val1, val2); | val1 != val2 |
ASSERT_LT(val1, val2); | EXPECT_LT(val1, val2); | val1 < val2 |
ASSERT_LE(val1, val2); | EXPECT_LE(val1, val2); | val1 <= val2 |
ASSERT_GT(val1, val2); | EXPECT_GT(val1, val2); | val1 > val2 |
ASSERT_GE(val1, val2); | EXPECT_GE(val1, val2); | val1 >= val2 |
浮点型检查
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_FLOAT_EQ(expected, actual); | EXPECT_FLOAT_EQ(expected, actual); | the two float values are almost equal |
ASSERT_DOUBLE_EQ(expected, actual); | EXPECT_DOUBLE_EQ(expected, actual); | the two double values are almost equal |
对相近的两个数比较：
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_NEAR(val1, val2, abs_error); | EXPECT_NEAR(val1, val2, abs_error); | the difference between val1 and val2 doesn’t exceed the given absolute error |
字符串检查
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_STREQ(expected_str, actual_str); | EXPECT_STREQ(expected_str, actual_str); | the two C strings have the same content |
ASSERT_STRNE(str1, str2); | EXPECT_STRNE(str1, str2); | the two C strings have different content |
ASSERT_STRCASEEQ(expected_str, actual_str); | EXPECT_STRCASEEQ(expected_str, actual_str); | the two C strings have the same content, ignoring case |
ASSERT_STRCASENE(str1, str2); | EXPECT_STRCASENE(str1, str2); | the two C strings have different content, ignoring case |
显示返回成功或失败
Fatal assertion | Nonfatal assertion |
|---|---|
FAIL(); | ADD_FAILURE(); |
异常检查
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_THROW(statement, exception_type); | EXPECT_THROW(statement, exception_type); | statement throws an exception of the given type |
ASSERT_ANY_THROW(statement); | EXPECT_ANY_THROW(statement); | statement throws an exception of any type |
ASSERT_NO_THROW(statement); | EXPECT_NO_THROW(statement); | statement doesn’t throw any exception |
Predicate Assertions
在使用EXPECT_TRUE或ASSERT_TRUE时，有时希望能够输出更加详细的信息，比如检查一个函数的返回值TRUE还是FALSE时，希望能够输出传入的参数是什么，以便失败后好跟踪。因此提供了如下的断言:
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_PRED1(pred1, val1); | EXPECT_PRED1(pred1, val1); | pred1(val1) returns true |
ASSERT_PRED2(pred2, val1, val2); | EXPECT_PRED2(pred2, val1, val2); | pred2(val1, val2) returns true |
… | … | … |
Windows HRESULT assertions
Fatal assertion | Nonfatal assertion | Verifies |
|---|---|---|
ASSERT_HRESULT_SUCCEEDED(expression); | EXPECT_HRESULT_SUCCEEDED(expression); | expression is a success HRESULT |
ASSERT_HRESULT_FAILED(expression); | EXPECT_HRESULT_FAILED(expression); | expression is a failure HRESULT |
类型检查
template <typename T> class FooType {
public:
void Bar() {
testing::StaticAssertTypeEq<int, T>(); }
};
TEST(TypeAssertionTest, Demo)
{
FooType<bool> fooType;
fooType.Bar();
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