package volume import ( "errors" "io/ioutil" "os" "strings" "testing" "github.com/docker/docker/api/types/mount" ) func TestValidateMount(t *testing.T) { testDir, err := ioutil.TempDir("", "test-validate-mount") if err != nil { t.Fatal(err) } defer os.RemoveAll(testDir) cases := []struct { input mount.Mount expected error }{ {mount.Mount{Type: mount.TypeVolume}, errMissingField("Target")}, {mount.Mount{Type: mount.TypeVolume, Target: testDestinationPath, Source: "hello"}, nil}, {mount.Mount{Type: mount.TypeVolume, Target: testDestinationPath}, nil}, {mount.Mount{Type: mount.TypeBind}, errMissingField("Target")}, {mount.Mount{Type: mount.TypeBind, Target: testDestinationPath}, errMissingField("Source")}, {mount.Mount{Type: mount.TypeBind, Target: testDestinationPath, Source: testSourcePath, VolumeOptions: &mount.VolumeOptions{}}, errExtraField("VolumeOptions")}, {mount.Mount{Type: mount.TypeBind, Source: testSourcePath, Target: testDestinationPath}, errBindNotExist}, {mount.Mount{Type: mount.TypeBind, Source: testDir, Target: testDestinationPath}, nil}, {mount.Mount{Type: "invalid", Target: testDestinationPath}, errors.New("mount type unknown")}, } for i, x := range cases { err := validateMountConfig(&x.input) if err == nil && x.expected == nil { continue } if (err == nil && x.expected != nil) || (x.expected == nil && err != nil) || !strings.Contains(err.Error(), x.expected.Error()) { t.Fatalf("expected %q, got %q, case: %d", x.expected, err, i) } } }