func (*FlagSuite) TestFlagOutputBadTarget(c *gc.C) {
in := &stubFlagWorker{}
var out interface{}
err := engine.FlagOutput(in, &out)
c.Check(err, gc.ErrorMatches, `expected out to be a \*Flag; got a .*`)
c.Check(out, gc.IsNil)
}
func (*FlagSuite) TestFlagOutputSuccess(c *gc.C) {
in := &stubFlagWorker{}
var out engine.Flag
err := engine.FlagOutput(in, &out)
c.Check(err, jc.ErrorIsNil)
c.Check(out, gc.Equals, in)
}
func (*FlagSuite) TestFlagOutputBadWorker(c *gc.C) {
in := &stubWorker{}
var out engine.Flag
err := engine.FlagOutput(in, &out)
c.Check(err, gc.ErrorMatches, `expected in to implement Flag; got a .*`)
c.Check(out, gc.IsNil)
}