func (s *instanceTest) TestString(c *gc.C) {
jsonValue := `{"hostname": "thethingintheplace", "system_id": "system_id", "test": "test"}`
obj := s.testMAASObject.TestServer.NewNode(jsonValue)
instance := &maasInstance{maasObject: &obj, environ: s.makeEnviron()}
hostname, err := instance.DNSName()
c.Assert(err, gc.IsNil)
expected := hostname + ":" + string(instance.Id())
c.Assert(fmt.Sprint(instance), gc.Equals, expected)
}
func (s *instanceTest) TestStringWithoutHostname(c *gc.C) {
// For good measure, test what happens if we don't have a hostname.
jsonValue := `{"system_id": "system_id", "test": "test"}`
obj := s.testMAASObject.TestServer.NewNode(jsonValue)
instance := &maasInstance{maasObject: &obj, environ: s.makeEnviron()}
_, err := instance.DNSName()
c.Assert(err, gc.NotNil)
expected := fmt.Sprintf("<DNSName failed: %q>", err) + ":" + string(instance.Id())
c.Assert(fmt.Sprint(instance), gc.Equals, expected)
}