斷言

ASSERT_*系列的斷言

當(dāng)檢查失敗時，退出當(dāng)前函數(shù)

EXPECT_*系列的斷言

當(dāng)檢查失敗時，繼續(xù)向下執(zhí)行

布爾值的檢查

Fatal assertionNonfatal assertionVerifies

ASSERT_TRUE(condition);	EXPECT_TRUE(condition);	condition is true
ASSERT_FALSE(condition);	EXPECT_FALSE(condition);	condition is false

數(shù)值型數(shù)據(jù)檢查

Fatal assertionNonfatal assertionVerifies

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

字符串檢查

Fatal assertionNonfatal assertionVerifies

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

返回成功和失敗

直接返回成功： SUCCEED()

返回失敗：

Fatal assertionNonfatal assertion

FAIL()	ADD_FAILURE()

異常檢查

Fatal assertionNonfatal assertionVerifies

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

輸入?yún)?shù)的檢查

失敗的時候回返回詳細(xì)的信息，包括哪個參數(shù)的錯誤

Fatal assertionNonfatal assertionVerifies

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
…	…	…

TEST(MultiPrime, Demo) {int m = 5, n = 6;EXPECT_PRED2(MultiPrime, m, n); }

如果還是嫌輸出的信息不夠詳細(xì)可以使用如下自定義格式的數(shù)據(jù)

Fatal assertionNonfatal assertionVerifies

ASSERT_PRED_FORMAT1(pred_format1, val1);|EXPECT_PRED_FORMAT1(`pred_format1, val1);	pred_format1(val1) is successful
ASSERT_PRED_FORMAT2(pred_format2, val1, val2);	EXPECT_PRED_FORMAT2(pred_format2, val1, val2);	pred_format2(val1, val2) is successful

testing::AssertionResult AssertFoo(const char* m_expr, const char* n_expr, const char* k_expr, int m, int n, int k) {if (Foo(m, n) == k)return testing::AssertionSuccess();testing::Message msg;msg << m_expr << " 和 " << n_expr << " 的最大公約數(shù)應(yīng)該是：" << Foo(m, n) << " 而不是：" << k_expr;return testing::AssertionFailure(msg); }TEST(AssertFooTest, HandleFail) {EXPECT_PRED_FORMAT3(AssertFoo, 3, 6, 2); } // error: 3 和 6 的最大公約數(shù)應(yīng)該是：3 而不是：2

浮點(diǎn)數(shù)檢查

Fatal assertionNonfatal assertionVerifies

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

對兩個非常相近的數(shù)檢查

Fatal assertionNonfatal assertionVerifies

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

類型檢查，類型檢查失敗之后會導(dǎo)致編譯失敗

template <typename T> class FooType { public:void Bar() { testing::StaticAssertTypeEq<int, T>(); } };TEST(TypeAssertionTest, Demo) {FooType<bool> fooType;fooType.Bar(); }

參考：
http://code.google.com/p/googletest/wiki/GoogleTestPrimer

http://code.google.com/p/googletest/wiki/GoogleTestAdvancedGuide

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