AssertTrue and AssertFalse use copyToInterface to copy msg. This is
unnecessary, cause we know the msgAndArgs param of assert.Equal is
variadic:
func Equal(t TestingT, expected, actual interface{}, msgAndArgs ...interface{}) bool
This patch removes copyToInterface function, and use msg directly.
Signed-off-by: Jes Cok <xigua67damn@gmail.com>
Used github.com/stretchr/testify/assert to replace the AssertEqual function definition. Required the use of copyToInterface to copy a string slice to the empty interface slice