def METHOD_NAME(self):
    isabs = macpath.isabs
    self.assertTrue(isabs("xx:yy"))
    self.assertTrue(isabs("xx:yy:"))
    self.assertTrue(isabs("xx:"))
    self.assertFalse(isabs("foo"))
    self.assertFalse(isabs(":foo"))
    self.assertFalse(isabs(":foo:bar"))
    self.assertFalse(isabs(":foo:bar:"))
    self.assertTrue(isabs(b"xx:yy"))
    self.assertTrue(isabs(b"xx:yy:"))
    self.assertTrue(isabs(b"xx:"))
    self.assertFalse(isabs(b"foo"))
    self.assertFalse(isabs(b":foo"))
    self.assertFalse(isabs(b":foo:bar"))
    self.assertFalse(isabs(b":foo:bar:"))