func (s *environInstSuite) TestParsePlacementZoneFailure(c *gc.C) {
	failure := errors.New("<unknown>")
	s.FakeConn.Err = failure

	_, err := gce.ParsePlacement(s.Env, "zone=a-zone")

	c.Check(errors.Cause(err), gc.Equals, failure)
}
func (s *environInstSuite) TestParsePlacement(c *gc.C) {
	zone := google.NewZone("a-zone", google.StatusUp, "", "")
	s.FakeConn.Zones = []google.AvailabilityZone{zone}

	placement, err := gce.ParsePlacement(s.Env, "zone=a-zone")
	c.Assert(err, jc.ErrorIsNil)

	c.Check(placement.Zone, jc.DeepEquals, &zone)
}
func (s *environInstSuite) TestParsePlacementUnknownDirective(c *gc.C) {
	_, err := gce.ParsePlacement(s.Env, "inst=spam")

	c.Check(err, gc.ErrorMatches, `.*unknown placement directive: .*`)
}
func (s *environInstSuite) TestParsePlacementMissingDirective(c *gc.C) {
	_, err := gce.ParsePlacement(s.Env, "a-zone")

	c.Check(err, gc.ErrorMatches, `.*unknown placement directive: .*`)
}