func (*FlagsSuite) TestDisksFlagErrors(c *gc.C) {
var disks []storage.Constraints
f := machine.NewDisksFlag(&disks)
err := f.Set("-1")
c.Assert(err, gc.ErrorMatches, `cannot parse disk constraints: cannot parse count: count must be greater than zero, got "-1"`)
c.Assert(disks, gc.HasLen, 0)
}
func (*FlagsSuite) TestDisksFlag(c *gc.C) {
var disks []storage.Constraints
f := machine.NewDisksFlag(&disks)
err := f.Set("crystal,1G")
c.Assert(err, jc.ErrorIsNil)
err = f.Set("2,2G")
c.Assert(err, jc.ErrorIsNil)
c.Assert(disks, gc.DeepEquals, []storage.Constraints{
{Pool: "crystal", Size: 1024, Count: 1},
{Size: 2048, Count: 2},
})
}