func (s commonSuite) TestSplitSuffixDotFilePlain(c *gc.C) {
path, suffix := filepath.SplitSuffix(".spam")
c.Check(path, gc.Equals, ".spam")
c.Check(suffix, gc.Equals, "")
}
func (s commonSuite) TestSplitSuffixDofileWithSuffix(c *gc.C) {
path, suffix := filepath.SplitSuffix(".spam.ext")
c.Check(path, gc.Equals, ".spam")
c.Check(suffix, gc.Equals, ".ext")
}
func (s commonSuite) TestSplitSuffixEmpty(c *gc.C) {
path, suffix := filepath.SplitSuffix("")
c.Check(path, gc.Equals, "")
c.Check(suffix, gc.Equals, "")
}