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/*
Gomega matchers
This package implements the Gomega matchers and does not typically need to be imported.
See the docs for Gomega for documentation on the matchers
http://onsi.github.io/gomega/
*/
package matchers
import (
"fmt"
"reflect"
)
type omegaMatcher interface {
Match(actual interface{}) (success bool, err error)
FailureMessage(actual interface{}) (message string)
NegatedFailureMessage(actual interface{}) (message string)
}
func isBool(a interface{}) bool {
return reflect.TypeOf(a).Kind() == reflect.Bool
}
func isNumber(a interface{}) bool {
if a == nil {
return false
}
kind := reflect.TypeOf(a).Kind()
return reflect.Int <= kind && kind <= reflect.Float64
}
func isInteger(a interface{}) bool {
kind := reflect.TypeOf(a).Kind()
return reflect.Int <= kind && kind <= reflect.Int64
}
func isUnsignedInteger(a interface{}) bool {
kind := reflect.TypeOf(a).Kind()
return reflect.Uint <= kind && kind <= reflect.Uint64
}
func isFloat(a interface{}) bool {
kind := reflect.TypeOf(a).Kind()
return reflect.Float32 <= kind && kind <= reflect.Float64
}
func toInteger(a interface{}) int64 {
if isInteger(a) {
return reflect.ValueOf(a).Int()
} else if isUnsignedInteger(a) {
return int64(reflect.ValueOf(a).Uint())
} else if isFloat(a) {
return int64(reflect.ValueOf(a).Float())
} else {
panic(fmt.Sprintf("Expected a number! Got <%T> %#v", a, a))
}
}
func toUnsignedInteger(a interface{}) uint64 {
if isInteger(a) {
return uint64(reflect.ValueOf(a).Int())
} else if isUnsignedInteger(a) {
return reflect.ValueOf(a).Uint()
} else if isFloat(a) {
return uint64(reflect.ValueOf(a).Float())
} else {
panic(fmt.Sprintf("Expected a number! Got <%T> %#v", a, a))
}
}
func toFloat(a interface{}) float64 {
if isInteger(a) {
return float64(reflect.ValueOf(a).Int())
} else if isUnsignedInteger(a) {
return float64(reflect.ValueOf(a).Uint())
} else if isFloat(a) {
return reflect.ValueOf(a).Float()
} else {
panic(fmt.Sprintf("Expected a number! Got <%T> %#v", a, a))
}
}
func isError(a interface{}) bool {
_, ok := a.(error)
return ok
}
func isChan(a interface{}) bool {
if isNil(a) {
return false
}
return reflect.TypeOf(a).Kind() == reflect.Chan
}
func isMap(a interface{}) bool {
if a == nil {
return false
}
return reflect.TypeOf(a).Kind() == reflect.Map
}
func isArrayOrSlice(a interface{}) bool {
if a == nil {
return false
}
switch reflect.TypeOf(a).Kind() {
case reflect.Array, reflect.Slice:
return true
default:
return false
}
}
func isString(a interface{}) bool {
if a == nil {
return false
}
return reflect.TypeOf(a).Kind() == reflect.String
}
func toString(a interface{}) (string, bool) {
aString, isString := a.(string)
if isString {
return aString, true
}
aBytes, isBytes := a.([]byte)
if isBytes {
return string(aBytes), true
}
aStringer, isStringer := a.(fmt.Stringer)
if isStringer {
return aStringer.String(), true
}
return "", false
}
func lengthOf(a interface{}) (int, bool) {
if a == nil {
return 0, false
}
switch reflect.TypeOf(a).Kind() {
case reflect.Map, reflect.Array, reflect.String, reflect.Chan, reflect.Slice:
return reflect.ValueOf(a).Len(), true
default:
return 0, false
}
}
func capOf(a interface{}) (int, bool) {
if a == nil {
return 0, false
}
switch reflect.TypeOf(a).Kind() {
case reflect.Array, reflect.Chan, reflect.Slice:
return reflect.ValueOf(a).Cap(), true
default:
return 0, false
}
}
func isNil(a interface{}) bool {
if a == nil {
return true
}
switch reflect.TypeOf(a).Kind() {
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
return reflect.ValueOf(a).IsNil()
}
return false
}
|
