BeEmptyMapf panics if m is not an empty map.

BeEqualf panics if a != b.

Bef panics if b is false.

Failf unconditionally panics with the given message.

NotBeBlankf panics if s is empty or contains only whitespace.

NotBeEmptyf panics if es is an empty slice.

NotBeEqualf panics if a == b.

NotBef panics if b is true.

NotBeNilf panics if v is nil.

NotContainf panics if e is in es.