final Job j = Job.newBuilder().setName("foo").setVersion("1").setImage("foobar").build();
assertEquals(newHashSet("Invalid volume path: /"),
validator.validate(j.toBuilder().addVolume("/").build()));
assertEquals(newHashSet("Invalid volume path: /foo:"),
validator.validate(j.toBuilder().addVolume("/foo:", "/bar").build()));
assertEquals(newHashSet("Volume path is not absolute: foo"),
validator.validate(j.toBuilder().addVolume("foo").build()));
assertEquals(newHashSet("Volume path is not absolute: foo"),