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authorAbseil Team <absl-team@google.com>2019-10-18 19:23:13 (GMT)
committerGennadiy Civil <misterg@google.com>2019-10-22 13:37:46 (GMT)
commit011c4e23d5254bed4b64099a3cb5233d4c4b76e8 (patch)
tree5cea32aa9754877cfe20b3cbb2ac8a2f29ff9b1e /googlemock/test
parentf966ed158177f2ed6ff2c402effb16f7f00ca40b (diff)
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Rolling forward IsNan() matcher with fixes in test for -Wconversion issues. Use std::nanf and std::nanl where appropriate. PiperOrigin-RevId: 275523003
Diffstat (limited to 'googlemock/test')
-rw-r--r--googlemock/test/gmock-matchers_test.cc108
1 files changed, 108 insertions, 0 deletions
diff --git a/googlemock/test/gmock-matchers_test.cc b/googlemock/test/gmock-matchers_test.cc
index 0373526..b9eb894 100644
--- a/googlemock/test/gmock-matchers_test.cc
+++ b/googlemock/test/gmock-matchers_test.cc
@@ -2054,6 +2054,114 @@ TEST(PairMatchBaseTest, WorksWithMoveOnly) {
EXPECT_TRUE(matcher.Matches(pointers));
}
+// Tests that IsNan() matches a NaN, with float.
+TEST(IsNan, FloatMatchesNan) {
+ float quiet_nan = std::numeric_limits<float>::quiet_NaN();
+ float other_nan = std::nanf("1");
+ float real_value = 1.0f;
+
+ Matcher<float> m = IsNan();
+ EXPECT_TRUE(m.Matches(quiet_nan));
+ EXPECT_TRUE(m.Matches(other_nan));
+ EXPECT_FALSE(m.Matches(real_value));
+
+ Matcher<float&> m_ref = IsNan();
+ EXPECT_TRUE(m_ref.Matches(quiet_nan));
+ EXPECT_TRUE(m_ref.Matches(other_nan));
+ EXPECT_FALSE(m_ref.Matches(real_value));
+
+ Matcher<const float&> m_cref = IsNan();
+ EXPECT_TRUE(m_cref.Matches(quiet_nan));
+ EXPECT_TRUE(m_cref.Matches(other_nan));
+ EXPECT_FALSE(m_cref.Matches(real_value));
+}
+
+// Tests that IsNan() matches a NaN, with double.
+TEST(IsNan, DoubleMatchesNan) {
+ double quiet_nan = std::numeric_limits<double>::quiet_NaN();
+ double other_nan = std::nan("1");
+ double real_value = 1.0;
+
+ Matcher<double> m = IsNan();
+ EXPECT_TRUE(m.Matches(quiet_nan));
+ EXPECT_TRUE(m.Matches(other_nan));
+ EXPECT_FALSE(m.Matches(real_value));
+
+ Matcher<double&> m_ref = IsNan();
+ EXPECT_TRUE(m_ref.Matches(quiet_nan));
+ EXPECT_TRUE(m_ref.Matches(other_nan));
+ EXPECT_FALSE(m_ref.Matches(real_value));
+
+ Matcher<const double&> m_cref = IsNan();
+ EXPECT_TRUE(m_cref.Matches(quiet_nan));
+ EXPECT_TRUE(m_cref.Matches(other_nan));
+ EXPECT_FALSE(m_cref.Matches(real_value));
+}
+
+// Tests that IsNan() matches a NaN, with long double.
+TEST(IsNan, LongDoubleMatchesNan) {
+ long double quiet_nan = std::numeric_limits<long double>::quiet_NaN();
+ long double other_nan = std::nan("1");
+ long double real_value = 1.0;
+
+ Matcher<long double> m = IsNan();
+ EXPECT_TRUE(m.Matches(quiet_nan));
+ EXPECT_TRUE(m.Matches(other_nan));
+ EXPECT_FALSE(m.Matches(real_value));
+
+ Matcher<long double&> m_ref = IsNan();
+ EXPECT_TRUE(m_ref.Matches(quiet_nan));
+ EXPECT_TRUE(m_ref.Matches(other_nan));
+ EXPECT_FALSE(m_ref.Matches(real_value));
+
+ Matcher<const long double&> m_cref = IsNan();
+ EXPECT_TRUE(m_cref.Matches(quiet_nan));
+ EXPECT_TRUE(m_cref.Matches(other_nan));
+ EXPECT_FALSE(m_cref.Matches(real_value));
+}
+
+// Tests that IsNan() works with Not.
+TEST(IsNan, NotMatchesNan) {
+ Matcher<float> mf = Not(IsNan());
+ EXPECT_FALSE(mf.Matches(std::numeric_limits<float>::quiet_NaN()));
+ EXPECT_FALSE(mf.Matches(std::nanf("1")));
+ EXPECT_TRUE(mf.Matches(1.0));
+
+ Matcher<double> md = Not(IsNan());
+ EXPECT_FALSE(md.Matches(std::numeric_limits<double>::quiet_NaN()));
+ EXPECT_FALSE(md.Matches(std::nan("1")));
+ EXPECT_TRUE(md.Matches(1.0));
+
+ Matcher<long double> mld = Not(IsNan());
+ EXPECT_FALSE(mld.Matches(std::numeric_limits<long double>::quiet_NaN()));
+ EXPECT_FALSE(mld.Matches(std::nanl("1")));
+ EXPECT_TRUE(mld.Matches(1.0));
+}
+
+// Tests that IsNan() can describe itself.
+TEST(IsNan, CanDescribeSelf) {
+ Matcher<float> mf = IsNan();
+ EXPECT_EQ("is NaN", Describe(mf));
+
+ Matcher<double> md = IsNan();
+ EXPECT_EQ("is NaN", Describe(md));
+
+ Matcher<long double> mld = IsNan();
+ EXPECT_EQ("is NaN", Describe(mld));
+}
+
+// Tests that IsNan() can describe itself with Not.
+TEST(IsNan, CanDescribeSelfWithNot) {
+ Matcher<float> mf = Not(IsNan());
+ EXPECT_EQ("isn't NaN", Describe(mf));
+
+ Matcher<double> md = Not(IsNan());
+ EXPECT_EQ("isn't NaN", Describe(md));
+
+ Matcher<long double> mld = Not(IsNan());
+ EXPECT_EQ("isn't NaN", Describe(mld));
+}
+
// Tests that FloatEq() matches a 2-tuple where
// FloatEq(first field) matches the second field.
TEST(FloatEq2Test, MatchesEqualArguments) {