},
			},
			{
				Volume: db.Volume{
					WorkerName: "worker2",
					TTL:        expectedOneOffTTL,
					Handle:     "volume2",
					VolumeIdentifier: db.VolumeIdentifier{
						ResourceVersion: atc.Version{"digest": "digest2"},
						ResourceHash:    `docker:{"repository":"repository2"}`,
					},
				},
			},
		}
		fakeBaggageCollectorDB.GetVolumesReturns(savedVolumes, nil)
		fakeBaggageCollectorDB.GetVolumesForOneOffBuildImageResourcesReturns(savedVolumes, nil)

		identifier1 := db.VolumeIdentifier{
			ResourceVersion: atc.Version{"digest": "digest1"},
			ResourceHash:    `docker:{"repository":"repository1"}`,
		}
		identifier2 := db.VolumeIdentifier{
			ResourceVersion: atc.Version{"digest": "digest2"},
			ResourceHash:    `docker:{"repository":"repository2"}`,
		}
		imageVersionMap := map[int][]db.VolumeIdentifier{
			1: {identifier1},
			2: {identifier2},
			4: {identifier1},
			5: {identifier2},
		}