/Godeps/_workspace/src/google.golang.org/appengine/internal/aetesting/fake.go
Go | 88 lines | 70 code | 10 blank | 8 comment | 17 complexity | f4115840f602c605b99a013b37cdd54e MD5 | raw file
Possible License(s): BSD-3-Clause, MIT, LGPL-3.0, Apache-2.0, JSON, BSD-2-Clause
- // Copyright 2011 Google Inc. All rights reserved.
- // Use of this source code is governed by the Apache 2.0
- // license that can be found in the LICENSE file.
- // Package aetesting provides utilities for testing App Engine packages.
- // This is not for testing user applications.
- package aetesting
- import (
- "fmt"
- "reflect"
- "testing"
- "github.com/golang/protobuf/proto"
- "google.golang.org/appengine"
- "google.golang.org/appengine/internal"
- )
- // FakeSingleContext returns a context whose Call invocations will be serviced
- // by f, which should be a function that has two arguments of the input and output
- // protocol buffer type, and one error return.
- func FakeSingleContext(t *testing.T, service, method string, f interface{}) appengine.Context {
- fv := reflect.ValueOf(f)
- if fv.Kind() != reflect.Func {
- t.Fatal("not a function")
- }
- ft := fv.Type()
- if ft.NumIn() != 2 || ft.NumOut() != 1 {
- t.Fatalf("f has %d in and %d out, want 2 in and 1 out", ft.NumIn(), ft.NumOut())
- }
- for i := 0; i < 2; i++ {
- at := ft.In(i)
- if !at.Implements(protoMessageType) {
- t.Fatalf("arg %d does not implement proto.Message", i)
- }
- }
- if ft.Out(0) != errorType {
- t.Fatalf("f's return is %v, want error", ft.Out(0))
- }
- return &single{
- t: t,
- service: service,
- method: method,
- f: fv,
- }
- }
- var (
- protoMessageType = reflect.TypeOf((*proto.Message)(nil)).Elem()
- errorType = reflect.TypeOf((*error)(nil)).Elem()
- )
- type single struct {
- t *testing.T
- service, method string
- f reflect.Value
- }
- func (s *single) logf(level, format string, args ...interface{}) {
- s.t.Logf(level+": "+format, args...)
- }
- func (s *single) Debugf(format string, args ...interface{}) { s.logf("DEBUG", format, args...) }
- func (s *single) Infof(format string, args ...interface{}) { s.logf("INFO", format, args...) }
- func (s *single) Warningf(format string, args ...interface{}) { s.logf("WARNING", format, args...) }
- func (s *single) Errorf(format string, args ...interface{}) { s.logf("ERROR", format, args...) }
- func (s *single) Criticalf(format string, args ...interface{}) { s.logf("CRITICAL", format, args...) }
- func (*single) FullyQualifiedAppID() string { return "dev~fake-app" }
- func (*single) Request() interface{} { return nil }
- func (s *single) Call(service, method string, in, out proto.Message, opts *internal.CallOptions) error {
- if service == "__go__" {
- return fmt.Errorf("Unknown API call /%s.%s", service, method)
- }
- if service != s.service || method != s.method {
- s.t.Fatalf("Unexpected call to /%s.%s", service, method)
- }
- ins := []reflect.Value{
- reflect.ValueOf(in),
- reflect.ValueOf(out),
- }
- outs := s.f.Call(ins)
- if outs[0].IsNil() {
- return nil
- }
- return outs[0].Interface().(error)
- }