Example #1
0
// diff returns a diff of both values as long as both are of the same type and
// are a struct, map, slice or array. Otherwise it returns an empty string.
func diff(expected interface{}, actual interface{}) string {
	if expected == nil || actual == nil {
		return ""
	}

	et, ek := typeAndKind(expected)
	at, _ := typeAndKind(actual)

	if et != at {
		return ""
	}

	if ek != reflect.Struct && ek != reflect.Map && ek != reflect.Slice && ek != reflect.Array {
		return ""
	}

	spew.Config.SortKeys = true
	e := spew.Sdump(expected)
	a := spew.Sdump(actual)

	diff, _ := difflib.GetUnifiedDiffString(difflib.UnifiedDiff{
		A:        difflib.SplitLines(e),
		B:        difflib.SplitLines(a),
		FromFile: "Expected",
		FromDate: "",
		ToFile:   "Actual",
		ToDate:   "",
		Context:  1,
	})

	return "\n\nDiff:\n" + diff
}
Example #2
0
// TestSpew executes all of the tests described by spewTests.
func TestSpew(t *testing.T) {
	initSpewTests()

	t.Logf("Running %d tests", len(spewTests))
	for i, test := range spewTests {
		buf := new(bytes.Buffer)
		switch test.f {
		case fCSFdump:
			test.cs.Fdump(buf, test.in)

		case fCSFprint:
			test.cs.Fprint(buf, test.in)

		case fCSFprintf:
			test.cs.Fprintf(buf, test.format, test.in)

		case fCSFprintln:
			test.cs.Fprintln(buf, test.in)

		case fCSPrint:
			b, err := redirStdout(func() { test.cs.Print(test.in) })
			if err != nil {
				t.Errorf("%v #%d %v", test.f, i, err)
				continue
			}
			buf.Write(b)

		case fCSPrintln:
			b, err := redirStdout(func() { test.cs.Println(test.in) })
			if err != nil {
				t.Errorf("%v #%d %v", test.f, i, err)
				continue
			}
			buf.Write(b)

		case fCSSdump:
			str := test.cs.Sdump(test.in)
			buf.WriteString(str)

		case fCSSprint:
			str := test.cs.Sprint(test.in)
			buf.WriteString(str)

		case fCSSprintf:
			str := test.cs.Sprintf(test.format, test.in)
			buf.WriteString(str)

		case fCSSprintln:
			str := test.cs.Sprintln(test.in)
			buf.WriteString(str)

		case fCSErrorf:
			err := test.cs.Errorf(test.format, test.in)
			buf.WriteString(err.Error())

		case fCSNewFormatter:
			fmt.Fprintf(buf, test.format, test.cs.NewFormatter(test.in))

		case fErrorf:
			err := spew.Errorf(test.format, test.in)
			buf.WriteString(err.Error())

		case fFprint:
			spew.Fprint(buf, test.in)

		case fFprintln:
			spew.Fprintln(buf, test.in)

		case fPrint:
			b, err := redirStdout(func() { spew.Print(test.in) })
			if err != nil {
				t.Errorf("%v #%d %v", test.f, i, err)
				continue
			}
			buf.Write(b)

		case fPrintln:
			b, err := redirStdout(func() { spew.Println(test.in) })
			if err != nil {
				t.Errorf("%v #%d %v", test.f, i, err)
				continue
			}
			buf.Write(b)

		case fSdump:
			str := spew.Sdump(test.in)
			buf.WriteString(str)

		case fSprint:
			str := spew.Sprint(test.in)
			buf.WriteString(str)

		case fSprintf:
			str := spew.Sprintf(test.format, test.in)
			buf.WriteString(str)

		case fSprintln:
			str := spew.Sprintln(test.in)
			buf.WriteString(str)

		default:
			t.Errorf("%v #%d unrecognized function", test.f, i)
			continue
		}
		s := buf.String()
		if test.want != s {
			t.Errorf("ConfigState #%d\n got: %s want: %s", i, s, test.want)
			continue
		}
	}
}