Describe("FindOn", func() { var foundVolume baggageclaim.Volume var found bool var findErr error JustBeforeEach(func() { foundVolume, found, findErr = cacheIdentifier.FindOn(logger, fakeBaggageclaimClient) }) Context("when one cache volume is present", func() { var workerVolume *bfakes.FakeVolume BeforeEach(func() { workerVolume = new(bfakes.FakeVolume) workerVolume.HandleReturns("found-volume-handle") fakeBaggageclaimClient.ListVolumesReturns([]baggageclaim.Volume{workerVolume}, nil) }) It("returns the volume and true", func() { Expect(foundVolume).To(Equal(workerVolume)) Expect(found).To(BeTrue()) }) It("found it by querying for the correct properties", func() { _, spec := fakeBaggageclaimClient.ListVolumesArgsForCall(0) Expect(spec).To(Equal(baggageclaim.VolumeProperties{ "resource-type": "some-resource-type", "resource-version": `{"some":"version"}`, "resource-source": "968e27f71617a029e58a09fb53895f1e1875b51bdaa11293ddc2cb335960875cb42c19ae8bc696caec88d55221f33c2bcc3278a7d15e8d13f23782d1a05564f1", "resource-params": "fe7d9dbc2ac75030c3e8c88e54a33676c38d8d9d2876700bc01d4961caf898e7cbe8e738232e86afcf6a5f64a9527c458a130277b08d72fb339962968d0d0967", "initialized": "yep",