func (s *fetchDataSuite) assertFetchDataFail(c *gc.C, msg string) {
data, _, err := simplestreams.FetchData(s.source, "this.path.doesnt.matter.for.test.either", s.requireSigned)
c.Assert(err, gc.ErrorMatches, msg)
c.Assert(data, gc.IsNil)
s.source.CheckCallNames(c, s.expectedCalls...)
}
func (s *fetchDataSuite) assertFetchData(c *gc.C) {
data, _, err := simplestreams.FetchData(s.source, "this.path.doesnt.matter.for.test.either", s.requireSigned)
c.Assert(err, jc.ErrorIsNil)
c.Assert([]byte(s.expectedData), gc.DeepEquals, data)
s.source.CheckCallNames(c, s.expectedCalls...)
}
