1package matchers
 2
 3import (
 4	"fmt"
 5
 6	"github.com/onsi/gomega/format"
 7)
 8
 9type SucceedMatcher struct {
10}
11
12func (matcher *SucceedMatcher) Match(actual interface{}) (success bool, err error) {
13	// is purely nil?
14	if actual == nil {
15		return true, nil
16	}
17
18	// must be an 'error' type
19	if !isError(actual) {
20		return false, fmt.Errorf("Expected an error-type.  Got:\n%s", format.Object(actual, 1))
21	}
22
23	// must be nil (or a pointer to a nil)
24	return isNil(actual), nil
25}
26
27func (matcher *SucceedMatcher) FailureMessage(actual interface{}) (message string) {
28	return fmt.Sprintf("Expected success, but got an error:\n%s\n%s", format.Object(actual, 1), format.IndentString(actual.(error).Error(), 1))
29}
30
31func (matcher *SucceedMatcher) NegatedFailureMessage(actual interface{}) (message string) {
32	return "Expected failure, but got no error."
33}