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package matchers
import (
"fmt"
"github.com/onsi/gomega/format"
"reflect"
)
type MatchErrorMatcher struct {
Expected interface{}
}
func (matcher *MatchErrorMatcher) Match(actual interface{}) (success bool, 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) {
return reflect.DeepEqual(actualErr.Error(), matcher.Expected), nil
}
if isError(matcher.Expected) {
return reflect.DeepEqual(actualErr, matcher.Expected), nil
}
var subMatcher omegaMatcher
var hasSubMatcher bool
if matcher.Expected != nil {
subMatcher, hasSubMatcher = (matcher.Expected).(omegaMatcher)
if hasSubMatcher {
return subMatcher.Match(actualErr.Error())
}
}
return false, fmt.Errorf("MatchError must be passed an error, string, or Matcher that can match on strings. Got:\n%s", format.Object(matcher.Expected, 1))
}
func (matcher *MatchErrorMatcher) FailureMessage(actual interface{}) (message string) {
return format.Message(actual, "to match error", matcher.Expected)
}
func (matcher *MatchErrorMatcher) NegatedFailureMessage(actual interface{}) (message string) {
return format.Message(actual, "not to match error", matcher.Expected)
}
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