func (matcher *HaveKeyMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if !isMap(actual) {
		return false, "", fmt.Errorf("HaveKey matcher expects a map.  Got:%s", format.Object(actual, 1))
	}

	keyMatcher, keyIsMatcher := matcher.Key.(omegaMatcher)
	matchingString := " matching"
	if !keyIsMatcher {
		keyMatcher = &EqualMatcher{Expected: matcher.Key}
		matchingString = ""
	}

	keys := reflect.ValueOf(actual).MapKeys()
	for i := 0; i < len(keys); i++ {
		success, _, err := keyMatcher.Match(keys[i].Interface())
		if err != nil {
			return false, "", fmt.Errorf("HaveKey's key matcher failed with:\n%s%s", format.Indent, err.Error())
		}
		if success {
			return true, format.Message(actual, "not to have key"+matchingString, matcher.Key), nil
		}
	}

	return false, format.Message(actual, "to have key"+matchingString, matcher.Key), nil
}
func (matcher *MatchJSONMatcher) Match(actual interface{}) (success bool, message string, err error) {
	actualString, aok := toString(actual)
	expectedString, eok := toString(matcher.JSONToMatch)

	if aok && eok {
		abuf := new(bytes.Buffer)
		ebuf := new(bytes.Buffer)

		if err := json.Indent(abuf, []byte(actualString), "", "  "); err != nil {
			return false, "", err
		}

		if err := json.Indent(ebuf, []byte(expectedString), "", "  "); err != nil {
			return false, "", err
		}

		var aval interface{}
		var eval interface{}

		json.Unmarshal([]byte(actualString), &aval)
		json.Unmarshal([]byte(expectedString), &eval)

		if reflect.DeepEqual(aval, eval) {
			return true, format.Message(abuf.String(), "not to match JSON of", ebuf.String()), nil
		} else {
			return false, format.Message(abuf.String(), "to match JSON of", ebuf.String()), nil
		}
	} else {
		return false, "", fmt.Errorf("MatchJSONMatcher matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
	}
	return false, "", nil
}
func (matcher *MatchErrorMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if isNil(actual) {
		return false, "", fmt.Errorf("Expected an error, got nil")
	}

	if !isError(actual) {
		return false, "", fmt.Errorf("Expected an error.  Got:\n%s", format.Object(actual, 1))
	}

	actualErr := actual.(error)

	if isString(matcher.Expected) {
		if reflect.DeepEqual(actualErr.Error(), matcher.Expected) {
			return true, format.Message(actual, "not to match error", matcher.Expected), nil
		} else {
			return false, format.Message(actual, "to match error", matcher.Expected), nil
		}
	}

	if isError(matcher.Expected) {
		if reflect.DeepEqual(actualErr, matcher.Expected) {
			return true, format.Message(actual, "not to match error", matcher.Expected), nil
		} else {
			return false, format.Message(actual, "to match error", matcher.Expected), nil
		}
	}

	return false, "", fmt.Errorf("MatchError must be passed an error or string.  Got:\n%s", format.Object(matcher.Expected, 1))
}
func (matcher *BeNilMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if isNil(actual) {
		return true, format.Message(actual, "not to be nil"), nil
	} else {
		return false, format.Message(actual, "to be nil"), nil
	}
}
func (matcher *ContainElementMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if !isArrayOrSlice(actual) && !isMap(actual) {
		return false, "", fmt.Errorf("ContainElement matcher expects an array/slice/map.  Got:\n%s", format.Object(actual, 1))
	}

	elemMatcher, elementIsMatcher := matcher.Element.(omegaMatcher)
	matchingString := " matching"
	if !elementIsMatcher {
		elemMatcher = &EqualMatcher{Expected: matcher.Element}
		matchingString = ""
	}

	value := reflect.ValueOf(actual)
	var keys []reflect.Value
	if isMap(actual) {
		keys = value.MapKeys()
	}
	for i := 0; i < value.Len(); i++ {
		var success bool
		var err error
		if isMap(actual) {
			success, _, err = elemMatcher.Match(value.MapIndex(keys[i]).Interface())
		} else {
			success, _, err = elemMatcher.Match(value.Index(i).Interface())
		}
		if err != nil {
			return false, "", fmt.Errorf("ContainElement's element matcher failed with:\n\t%s", err.Error())
		}
		if success {
			return true, format.Message(actual, "not to contain element"+matchingString, matcher.Element), nil
		}
	}

	return false, format.Message(actual, "to contain element"+matchingString, matcher.Element), nil
}
func (matcher *PanicMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if actual == nil {
		return false, "", fmt.Errorf("PanicMatcher expects a non-nil actual.")
	}
	actualType := reflect.TypeOf(actual)
	if actualType.Kind() != reflect.Func {
		return false, "", fmt.Errorf("PanicMatcher expects a function.  Got:\n%s", format.Object(actual, 1))
	}
	if !(actualType.NumIn() == 0 && actualType.NumOut() == 0) {
		return false, "", fmt.Errorf("PanicMatcher expects a function with no arguments and no return value.  Got:\n%s", format.Object(actual, 1))
	}

	success = false
	message = format.Message(actual, "to panic")
	err = nil

	defer func() {
		if e := recover(); e != nil {
			success = true
			message = format.Message(actual, "not to panic")
			err = nil
		}
	}()

	reflect.ValueOf(actual).Call([]reflect.Value{})

	return
}
func (matcher *BeClosedMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if !isChan(actual) {
		return false, "", fmt.Errorf("BeClosed matcher expects a channel.  Got:\n%s", format.Object(actual, 1))
	}

	channelType := reflect.TypeOf(actual)
	channelValue := reflect.ValueOf(actual)

	var closed bool

	if channelType.ChanDir() == reflect.SendDir {
		return false, "", fmt.Errorf("BeClosed matcher cannot determine if a send-only channel is closed or open.  Got:\n%s", format.Object(actual, 1))
	} else {
		winnerIndex, _, open := reflect.Select([]reflect.SelectCase{
			reflect.SelectCase{Dir: reflect.SelectRecv, Chan: channelValue},
			reflect.SelectCase{Dir: reflect.SelectDefault},
		})

		if winnerIndex == 0 {
			closed = !open
		} else if winnerIndex == 1 {
			closed = false
		}
	}

	if closed {
		return true, format.Message(actual, "to be open"), nil
	} else {
		return false, format.Message(actual, "to be closed"), nil
	}
}
Esempio n. 8
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func (matcher *HaveKeyMatcher) NegatedFailureMessage(actual interface{}) (message string) {
	switch matcher.Key.(type) {
	case omegaMatcher:
		return format.Message(actual, "not to have key matching", matcher.Key)
	default:
		return format.Message(actual, "not to have key", matcher.Key)
	}
}
func (matcher *BeTrueMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if !isBool(actual) {
		return false, "", fmt.Errorf("Expected a boolean.  Got:\n%s", format.Object(actual, 1))
	}
	if actual == true {
		return true, format.Message(actual, "not to be true"), nil
	} else {
		return false, format.Message(actual, "to be true"), nil
	}
}
Esempio n. 10
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func (matcher *EqualMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if actual == nil && matcher.Expected == nil {
		return false, "", fmt.Errorf("Refusing to compare <nil> to <nil>.")
	}
	if reflect.DeepEqual(actual, matcher.Expected) {
		return true, format.Message(actual, "not to equal", matcher.Expected), nil
	} else {
		return false, format.Message(actual, "to equal", matcher.Expected), nil
	}
}
func (matcher *ReceiveMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if !isChan(actual) {
		return false, "", fmt.Errorf("ReceiveMatcher expects a channel.  Got:\n%s", format.Object(actual, 1))
	}

	channelType := reflect.TypeOf(actual)
	channelValue := reflect.ValueOf(actual)

	if channelType.ChanDir() == reflect.SendDir {
		return false, "", fmt.Errorf("ReceiveMatcher matcher cannot be passed a send-only channel.  Got:\n%s", format.Object(actual, 1))
	}

	if matcher.Arg != nil {
		argType := reflect.TypeOf(matcher.Arg)
		if argType.Kind() != reflect.Ptr {
			return false, "", fmt.Errorf("Cannot assign a value from the channel:\n%s\nTo:\n%s\nYou need to pass a pointer!", format.Object(actual, 1), format.Object(matcher.Arg, 1))
		}

		assignable := channelType.Elem().AssignableTo(argType.Elem())
		if !assignable {
			return false, "", fmt.Errorf("Cannot assign a value from the channel:\n%s\nTo:\n%s", format.Object(actual, 1), format.Object(matcher.Arg, 1))
		}
	}

	var closed bool
	var didReceive bool

	winnerIndex, value, open := reflect.Select([]reflect.SelectCase{
		reflect.SelectCase{Dir: reflect.SelectRecv, Chan: channelValue},
		reflect.SelectCase{Dir: reflect.SelectDefault},
	})

	if winnerIndex == 0 {
		closed = !open
		didReceive = open
	} else if winnerIndex == 1 {
		closed = false
		didReceive = false
	}

	if closed {
		return false, "", fmt.Errorf("ReceiveMatcher was given a closed channel:\n%s", format.Object(actual, 1))
	}

	if didReceive {
		if matcher.Arg != nil {
			outValue := reflect.ValueOf(matcher.Arg)
			reflect.Indirect(outValue).Set(value)
		}
		return true, format.Message(actual, "not to receive anything"), nil
	} else {
		return false, format.Message(actual, "to receive something"), nil
	}
}
func (matcher *BeZeroMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if actual == nil {
		return true, format.Message(actual, "not to be zero-valued"), nil
	}
	zeroValue := reflect.Zero(reflect.TypeOf(actual)).Interface()
	if reflect.DeepEqual(zeroValue, actual) {
		return true, format.Message(actual, "not to be zero-valued"), nil
	} else {
		return false, format.Message(actual, "to be zero-valued"), nil
	}
}
func (matcher *BeEmptyMatcher) Match(actual interface{}) (success bool, message string, err error) {
	length, ok := lengthOf(actual)
	if ok {
		if length == 0 {
			return true, format.Message(actual, "not to be empty"), nil
		} else {
			return false, format.Message(actual, "to be empty"), nil
		}
	} else {
		return false, "", fmt.Errorf("BeEmpty matcher expects a string/array/map/channel/slice.  Got:\n%s", format.Object(actual, 1))
	}
}
func (matcher *AssignableToTypeOfMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if actual == nil || matcher.Expected == nil {
		return false, "", fmt.Errorf("Refusing to compare <nil> to <nil>.")
	}

	actualType := reflect.TypeOf(actual)
	expectedType := reflect.TypeOf(matcher.Expected)

	if actualType.AssignableTo(expectedType) {
		return true, format.Message(actual, fmt.Sprintf("not to be assignable to the type: %T", matcher.Expected)), nil
	} else {
		return false, format.Message(actual, fmt.Sprintf("to be assignable to the type: %T", matcher.Expected)), nil
	}
}
Esempio n. 15
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func (m *exitMatcher) FailureMessage(actual interface{}) (message string) {
	if m.actualExitCode == -1 {
		return "Expected process to exit.  It did not."
	} else {
		return format.Message(m.actualExitCode, "to match exit code:", m.exitCode)
	}
}
func (matcher *BeNumericallyMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if len(matcher.CompareTo) == 0 || len(matcher.CompareTo) > 2 {
		return false, "", fmt.Errorf("BeNumerically requires 1 or 2 CompareTo arguments.  Got:\n%s", format.Object(matcher.CompareTo, 1))
	}
	if !isNumber(actual) {
		return false, "", fmt.Errorf("Expected a number.  Got:\n%s", format.Object(actual, 1))
	}
	if !isNumber(matcher.CompareTo[0]) {
		return false, "", fmt.Errorf("Expected a number.  Got:\n%s", format.Object(matcher.CompareTo[0], 1))
	}
	if len(matcher.CompareTo) == 2 && !isNumber(matcher.CompareTo[1]) {
		return false, "", fmt.Errorf("Expected a number.  Got:\n%s", format.Object(matcher.CompareTo[0], 1))
	}
	switch matcher.Comparator {
	case "==", "~", ">", ">=", "<", "<=":
	default:
		return false, "", fmt.Errorf("Unknown comparator: %s", matcher.Comparator)
	}

	if isFloat(actual) || isFloat(matcher.CompareTo[0]) {
		var secondOperand float64 = 1e-8
		if len(matcher.CompareTo) == 2 {
			secondOperand = toFloat(matcher.CompareTo[1])
		}
		success = matcher.matchFloats(toFloat(actual), toFloat(matcher.CompareTo[0]), secondOperand)
	} else if isInteger(actual) {
		var secondOperand int64 = 0
		if len(matcher.CompareTo) == 2 {
			secondOperand = toInteger(matcher.CompareTo[1])
		}
		success = matcher.matchIntegers(toInteger(actual), toInteger(matcher.CompareTo[0]), secondOperand)
	} else if isUnsignedInteger(actual) {
		var secondOperand uint64 = 0
		if len(matcher.CompareTo) == 2 {
			secondOperand = toUnsignedInteger(matcher.CompareTo[1])
		}
		success = matcher.matchUnsignedIntegers(toUnsignedInteger(actual), toUnsignedInteger(matcher.CompareTo[0]), secondOperand)
	} else {
		return false, "", fmt.Errorf("Failed to compare:\n%s\n%s:\n%s", format.Object(actual, 1), matcher.Comparator, format.Object(matcher.CompareTo[0], 1))
	}

	if success {
		return true, format.Message(actual, fmt.Sprintf("not to be %s", matcher.Comparator), matcher.CompareTo[0]), nil
	} else {
		return false, format.Message(actual, fmt.Sprintf("to be %s", matcher.Comparator), matcher.CompareTo[0]), nil
	}
}
func (matcher *BeEquivalentToMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if actual == nil && matcher.Expected == nil {
		return false, "", fmt.Errorf("Both actual and expected must not be nil.")
	}

	convertedActual := actual

	if actual != nil && matcher.Expected != nil && reflect.TypeOf(actual).ConvertibleTo(reflect.TypeOf(matcher.Expected)) {
		convertedActual = reflect.ValueOf(actual).Convert(reflect.TypeOf(matcher.Expected)).Interface()
	}

	if reflect.DeepEqual(convertedActual, matcher.Expected) {
		return true, format.Message(actual, "not to be equivalent to", matcher.Expected), nil
	} else {
		return false, format.Message(actual, "to be equivalent to", matcher.Expected), nil
	}
}
func (matcher *ContainSubstringMatcher) Match(actual interface{}) (success bool, message string, err error) {
	actualString, ok := toString(actual)
	if ok {
		stringToMatch := matcher.Substr
		if len(matcher.Args) > 0 {
			stringToMatch = fmt.Sprintf(matcher.Substr, matcher.Args...)
		}
		match := strings.Contains(actualString, stringToMatch)
		if match {
			return true, format.Message(actual, "not to contain substring", stringToMatch), nil
		} else {
			return false, format.Message(actual, "to contain substring", stringToMatch), nil
		}
	} else {
		return false, "", fmt.Errorf("ContainSubstring matcher requires a string or stringer.  Got:\n%s", format.Object(actual, 1))
	}
}
Esempio n. 19
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func (m *FieldsMatcher) FailureMessage(actual interface{}) (message string) {
	failures := make([]string, len(m.failures))
	for i := range m.failures {
		failures[i] = m.failures[i].Error()
	}
	return format.Message(reflect.TypeOf(actual).Name(),
		fmt.Sprintf("to match fields: {\n%v\n}\n", strings.Join(failures, "\n")))
}
Esempio n. 20
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func (matcher *ReceiveMatcher) NegatedFailureMessage(actual interface{}) (message string) {
	subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)

	if hasSubMatcher {
		return subMatcher.NegatedFailureMessage(matcher.receivedValue)
	} else {
		return format.Message(actual, "not to receive anything")
	}
}
Esempio n. 21
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func (m *exitMatcher) NegatedFailureMessage(actual interface{}) (message string) {
	if m.actualExitCode == -1 {
		return "you really shouldn't be able to see this!"
	} else {
		if m.exitCode == -1 {
			return "Expected process not to exit.  It did."
		} else {
			return format.Message(m.actualExitCode, "not to match exit code:", m.exitCode)
		}
	}
}
func (matcher *HaveOccurredMatcher) Match(actual interface{}) (success bool, message string, err error) {
	if actual == nil {
		return false, format.Message(actual, "to have occurred"), nil
	} else {
		if isError(actual) {
			return true, fmt.Sprintf("Expected error:\n%s\n%s\n%s", format.Object(actual, 1), format.IndentString(actual.(error).Error(), 1), "not to have occurred"), nil
		} else {
			return false, "", fmt.Errorf("Expected an error.  Got:\n%s", format.Object(actual, 1))
		}
	}
}
Esempio n. 23
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func (matcher *HaveKeyWithValueMatcher) FailureMessage(actual interface{}) (message string) {
	str := "to have {key: value}"
	if _, ok := matcher.Key.(omegaMatcher); ok {
		str += " matching"
	} else if _, ok := matcher.Value.(omegaMatcher); ok {
		str += " matching"
	}

	expect := make(map[interface{}]interface{}, 1)
	expect[matcher.Key] = matcher.Value
	return format.Message(actual, str, expect)
}
Esempio n. 24
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func (p *panics) FailureMessage(actual interface{}) (message string) {
	if p.actPanicValue == nil {
		return format.Message(actual, "to panic with:", p.err)
	}

	return fmt.Sprintf(
		"Expected\n%s\nto panic with:\n%s\nbut got:\n%s",
		format.Object(actual, 1),
		format.Object(p.err, 1),
		format.Object(p.actPanicValue, 1),
	)
}
Esempio n. 25
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func (p *panicsWithSubstring) FailureMessage(actual interface{}) string {
	if p.panics.actPanicValue == nil {
		return format.Message(actual, "to panic contains:", p.substr)
	}

	return fmt.Sprintf(
		"Expected\n%s\nto panic contains:\n%s\nbut got:\n%s",
		format.Object(actual, 1),
		format.Object(p.substr, 1),
		format.Object(p.actPanicValue, 1),
	)
}
func (matcher *MatchRegexpMatcher) Match(actual interface{}) (success bool, message string, err error) {
	actualString, ok := toString(actual)
	if ok {
		re := matcher.Regexp
		if len(matcher.Args) > 0 {
			re = fmt.Sprintf(matcher.Regexp, matcher.Args...)
		}

		match, err := regexp.Match(re, []byte(actualString))
		if err != nil {
			return false, "", fmt.Errorf("RegExp match failed to compile with error:\n\t%s", err.Error())
		}
		if match {
			return true, format.Message(actual, "not to match regular expression", re), nil
		} else {
			return false, format.Message(actual, "to match regular expression", re), nil
		}
	} else {
		return false, "", fmt.Errorf("RegExp matcher requires a string or stringer.\nGot:%s", format.Object(actual, 1))
	}
}
Esempio n. 27
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func (matcher *ReceiveMatcher) NegatedFailureMessage(actual interface{}) (message string) {
	subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)

	if hasSubMatcher {
		if matcher.receivedValue.IsValid() {
			return subMatcher.NegatedFailureMessage(matcher.receivedValue.Interface())
		}
		return "When passed a matcher, ReceiveMatcher's channel *must* receive something."
	} else {
		return format.Message(actual, "not to receive anything")
	}
}
Esempio n. 28
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func (matcher *HaveKeyWithValueMatcher) NegatedFailureMessage(actual interface{}) (message string) {
	kStr := "not to have key"
	if _, ok := matcher.Key.(omegaMatcher); ok {
		kStr = "not to have key matching"
	}

	vStr := "or that key's value not be"
	if _, ok := matcher.Value.(omegaMatcher); ok {
		vStr = "or to have that key's value not matching"
	}

	return format.Message(actual, kStr, matcher.Key, vStr, matcher.Value)
}
Esempio n. 29
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func (matcher *ReceiveMatcher) FailureMessage(actual interface{}) (message string) {
	subMatcher, hasSubMatcher := (matcher.Arg).(omegaMatcher)

	closedAddendum := ""
	if matcher.channelClosed {
		closedAddendum = " The channel is closed."
	}

	if hasSubMatcher {
		if matcher.receivedValue.IsValid() {
			return subMatcher.FailureMessage(matcher.receivedValue.Interface())
		}
		return "When passed a matcher, ReceiveMatcher's channel *must* receive something."
	} else {
		return format.Message(actual, "to receive something."+closedAddendum)
	}
}
Esempio n. 30
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func (m *PointerMatcher) Match(actual interface{}) (bool, error) {
	val := reflect.ValueOf(actual)

	// return error if actual type is not a pointer
	if val.Kind() != reflect.Ptr {
		return false, fmt.Errorf("PointerMatcher expects a pointer but we have '%s'", val.Kind())
	}

	if !val.IsValid() || val.IsNil() {
		m.failure = format.Message(actual, "not to be <nil>")
		return false, nil
	}

	// Forward the value.
	elem := val.Elem().Interface()
	match, err := m.Matcher.Match(elem)
	if !match {
		m.failure = m.Matcher.FailureMessage(elem)
	}
	return match, err
}