Esempio n. 1
0
// The generalized form of ExpectThat. depth is the distance on the stack
// between the caller's frame and the user's frame. Returns passed iff the
// match succeeded.
func expectThat(
	x interface{},
	m oglematchers.Matcher,
	depth int,
	errorParts []interface{}) (passed bool) {
	// Check whether the value matches. If it does, we are finished.
	matcherErr := m.Matches(x)
	if matcherErr == nil {
		passed = true
		return
	}

	var r FailureRecord

	// Get information about the call site.
	var ok bool
	if _, r.FileName, r.LineNumber, ok = runtime.Caller(depth + 1); !ok {
		panic("expectThat: runtime.Caller")
	}

	r.FileName = path.Base(r.FileName)

	// Create an appropriate failure message. Make sure that the expected and
	// actual values align properly.
	relativeClause := ""
	if matcherErr.Error() != "" {
		relativeClause = fmt.Sprintf(", %s", matcherErr.Error())
	}

	r.Error = fmt.Sprintf(
		"Expected: %s\nActual:   %v%s",
		m.Description(),
		x,
		relativeClause)

	// Add the user error, if any.
	if len(errorParts) != 0 {
		v := reflect.ValueOf(errorParts[0])
		if v.Kind() != reflect.String {
			panic(fmt.Sprintf("ExpectThat: invalid format string type %v", v.Kind()))
		}

		r.Error = fmt.Sprintf(
			"%s\n%s",
			r.Error,
			fmt.Sprintf(v.String(), errorParts[1:]...))
	}

	// Report the failure.
	AddFailureRecord(r)

	return
}
Esempio n. 2
0
func matches(matcher ogle.Matcher, o interface{}) bool {
	err := matcher.Matches(o)
	return err == nil
}