1 package matchers
2
3 import (
4 "fmt"
5
6 "github.com/onsi/gomega/format"
7 )
8
9 type HaveLenMatcher struct {
10 Count int
11 }
12
13 func (matcher *HaveLenMatcher) Match(actual interface{}) (success bool, err error) {
14 length, ok := lengthOf(actual)
15 if !ok {
16 return false, fmt.Errorf("HaveLen matcher expects a string/array/map/channel/slice. Got:\n%s", format.Object(actual, 1))
17 }
18
19 return length == matcher.Count, nil
20 }
21
22 func (matcher *HaveLenMatcher) FailureMessage(actual interface{}) (message string) {
23 return fmt.Sprintf("Expected\n%s\nto have length %d", format.Object(actual, 1), matcher.Count)
24 }
25
26 func (matcher *HaveLenMatcher) NegatedFailureMessage(actual interface{}) (message string) {
27 return fmt.Sprintf("Expected\n%s\nnot to have length %d", format.Object(actual, 1), matcher.Count)
28 }
29
View as plain text