assert := assert.New(t)
	getImagesAndFreeSpace(ctx, t, assert, manager, fakeRuntime, 1024, 0, 2, fakeClock.Now())

	// move clock by minAge duration, then 1 image will be garbage collected
	fakeClock.Step(policy.MinAge)
	getImagesAndFreeSpace(ctx, t, assert, manager, fakeRuntime, 1024, 1024, 1, fakeClock.Now())
}