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Add a test to ensure that the Throws matcher only invokes its argument once.

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This commit is contained in:
Vladimir Goncharov 2020-07-07 19:09:53 +03:00
parent 69c510fb51
commit 92d0a6f7e2
1 changed files with 30 additions and 0 deletions
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30
googlemock/test/gmock-matchers_test.cc
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@ -8145,6 +8145,36 @@ TEST(ThrowsTest, DoesNotGenerateDuplicateCatchClauseWarning) {
Throws<std::exception>()); Throws<std::exception>());
} }
TEST(ThrowsTest, CallableExecutedExactlyOnce) {
size_t a = 0;
EXPECT_THAT(
[&a]() { a++; throw 10; },
Throws<int>());
EXPECT_EQ(a, 1);
EXPECT_THAT(
[&a]() { a++; throw std::runtime_error("message"); },
Throws<std::runtime_error>());
EXPECT_EQ(a, 2);
EXPECT_THAT(
[&a]() { a++; throw std::runtime_error("message"); },
ThrowsMessage<std::runtime_error>(HasSubstr("message")));
EXPECT_EQ(a, 3);
EXPECT_THAT(
[&a]() { a++; throw std::runtime_error("message"); },
ThrowsMessageHasSubstr<std::runtime_error>("message"));
EXPECT_EQ(a, 4);
EXPECT_THAT(
[&a]() { a++; throw std::runtime_error("message"); },
Throws<std::runtime_error>(
Property(&std::runtime_error::what, HasSubstr("message"))));
EXPECT_EQ(a, 5);
}
TEST(ThrowsTest, Describe) { TEST(ThrowsTest, Describe) {
Matcher<void (*)()> matcher = Throws<std::runtime_error>(); Matcher<void (*)()> matcher = Throws<std::runtime_error>();
std::stringstream ss; std::stringstream ss;