if _, err := os.Stat(dataFile); err != nil {
		if os.IsNotExist(err) {
			t.Errorf("data file not created %s", dataFile)
		} else {
			t.Fatal(err)
		}
	}
}

func TestPluginNewUnmapper(t *testing.T) {
	plug, tmpDir := newTestPlugin(t, nil)
	defer os.RemoveAll(tmpDir)

	registerFakePlugin(testDriver, "endpoint", []string{"1.0.0"}, t)
	pv := makeTestPV("test-pv", 10, testDriver, testVol)