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contain_element_matcher.go
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/
contain_element_matcher.go
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package matchers
import (
"fmt"
"github.com/onsi/gomega/format"
"reflect"
)
type ContainElementMatcher struct {
Element interface{}
}
func (matcher *ContainElementMatcher) Match(actual interface{}) (success bool, 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)
if !elementIsMatcher {
elemMatcher = &EqualMatcher{Expected: matcher.Element}
}
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, nil
}
}
return false, nil
}
func (matcher *ContainElementMatcher) FailureMessage(actual interface{}) (message string) {
return format.Message(actual, "to contain element matching", matcher.Element)
}
func (matcher *ContainElementMatcher) NegatedFailureMessage(actual interface{}) (message string) {
return format.Message(actual, "not to contain element matching", matcher.Element)
}