47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package matchers
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
|
|
"github.com/onsi/gomega/format"
|
|
)
|
|
|
|
type PanicMatcher struct {
|
|
object interface{}
|
|
}
|
|
|
|
func (matcher *PanicMatcher) Match(actual interface{}) (success bool, 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
|
|
defer func() {
|
|
if e := recover(); e != nil {
|
|
matcher.object = e
|
|
success = true
|
|
}
|
|
}()
|
|
|
|
reflect.ValueOf(actual).Call([]reflect.Value{})
|
|
|
|
return
|
|
}
|
|
|
|
func (matcher *PanicMatcher) FailureMessage(actual interface{}) (message string) {
|
|
return format.Message(actual, "to panic")
|
|
}
|
|
|
|
func (matcher *PanicMatcher) NegatedFailureMessage(actual interface{}) (message string) {
|
|
return format.Message(actual, fmt.Sprintf("not to panic, but panicked with\n%s", format.Object(matcher.object, 1)))
|
|
}
|