[FR]: Add EXPECT_DOUBLE_NE and ASSERT_DOUBLE_NE

Does the feature exist in the most recent commit?

NOPE

Why do we need this feature?

Checking that two doubles are NOT equal is more difficult than it is to check they are equal per S.O.

One approach is to bring in gmock and link to it if you want to check a double value is not equal:

#include <gmock/gmock.h>
#include <gtest/gtest.h>

EXPECT_DOUBLE_EQ(another_value, 3.14);
EXPECT_THAT(another_value, testing::Not(testing::DoubleEq(3.14)));

Describe the proposal.

Here is what I would prefer for the API, which use "NE" like EXPECT_NE

EXPECT_DOUBLE_EQ(another_value, 3.14);
EXPECT_DOUBLE_NE(another_value, 3.14);

Same with

• EXPECT_FLOAT_NE
• ASSERT_DOUBLE_NE
• ASSERT_FLOAT_NE

Is the feature specific to an operating system, compiler, or build system version?

It could be implemented on any OS.

No implementation file or test is named. Start by locating the existing EXPECT_DOUBLE_EQ, EXPECT_FLOAT_EQ, EXPECT_NE, and ASSERT_* assertion entry points in GoogleTest, then compare how these APIs are defined and tested. Done means the four requested floating-point not-equal assertions are available with the proposed names and behave consistently with the existing equality assertions.