assert: Add new assertion InEpsilonMapValues

[hendrywiranto]

Summary

Add new assertion InEpsilonMapValues which is the same as InEpsilon, but it compares all values between two maps.

Changes

• Add new assertion InEpsilonMapValues

Motivation

Quoting #1497

To be consistent with InDeltaMapValues package could provide InEpsilonMapValues

Example

expected := map[string]float64{
	"foo": 2.2,
	"baz": 2.0,
}
actual := map[string]float64{
	"foo": 2.1,
	"baz": 2.1,
}
InEpsilonMapValues(mockT, expected, actual, 0.06, "InEpsilonMapValues example")

Related issues

Closes #1497

[Antonboom]

@hendrywiranto, hi!

I am not maintainer of testify and cannot approve or decline your MR.
But LGTM.

(cc) @dolmen

[hendrywiranto]

@hendrywiranto, hi!

I am not maintainer of testify and cannot approve or decline your MR. But LGTM.

(cc) @dolmen

Yep I know, thanks for replying tho
Looks like the checks failure is a widespread issue and being handled here #1504

[dolmen]

FYI, my focus is on fixing bugs, not on extending the API to have even more code to maintain.

[dolmen]

Remove the check of the kind of actual.

Instead, just check the kind of expected and check that actual has the same type with call IsType(t, expected, actual, msgAndArgs...).

[hendrywiranto]

Thank you for review, kindly please check again

[dolmen]

Suggested change

	f func(TestingT, bool, ...interface{}) bool
	f BoolAssertionFunc

[dolmen]

Add tests with map[string]string and map[string]struct{}.