Compare Eigen matrices in Google Test or Google Mock

Question

I was wondering if there is a good way to test two Eigen matrices for approximate equality using Google Test, or Google Mock.

Take the following test-case as a

Answer 1

Why not use the isApprox or isMuchSmallerThan member functions of Eigen Matrix types?

The documentation of these above functions are available here

So for most cases ASSERT_TRUE(C_actual.isApprox(C_expect)); is what you need. You can also provide a precision parameter as the second arguement to isApprox.