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// Copyright 2015 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package parse
import (
"encoding/json"
"net/http"
"testing"
"github.com/google/martian/v3"
"github.com/google/martian/v3/martiantest"
)
func TestFromJSON(t *testing.T) {
msg := []byte(`{
"first.Modifier": { },
"second.Modifier": { }
}`)
if _, err := FromJSON(msg); err == nil {
t.Error("FromJson(): got nil, want more than one key error")
}
Register("martiantest.Modifier", func(b []byte) (*Result, error) {
type testJSON struct {
Scope []ModifierType `json:"scope"`
}
msg := &testJSON{}
if err := json.Unmarshal(b, msg); err != nil {
return nil, err
}
tm := martiantest.NewModifier()
return NewResult(tm, msg.Scope)
})
msg = []byte(`{
"martiantest.Modifier": { }
}`)
r, err := FromJSON(msg)
if err != nil {
t.Fatalf("FromJSON(): got %v, want no error", err)
}
if _, ok := r.RequestModifier().(*martiantest.Modifier); !ok {
t.Fatal("r.RequestModifier().(*martiantest.Modifier): got !ok, want ok")
}
if _, ok := r.ResponseModifier().(*martiantest.Modifier); !ok {
t.Fatal("r.ResponseModifier().(*martiantest.Modifier): got !ok, want ok")
}
msg = []byte(`{
"martiantest.Modifier": {
"scope": ["request"]
}
}`)
r, err = FromJSON(msg)
if err != nil {
t.Fatalf("FromJSON(): got %v, want no error", err)
}
if _, ok := r.RequestModifier().(*martiantest.Modifier); !ok {
t.Fatal("r.RequestModifier().(*martiantest.Modifier): got !ok, want ok")
}
resmod := r.ResponseModifier()
if resmod != nil {
t.Error("r.ResponseModifier(): got not nil, want nil")
}
msg = []byte(`{
"martiantest.Modifier": {
"scope": ["response"]
}
}`)
r, err = FromJSON(msg)
if err != nil {
t.Fatalf("FromJSON(): got %v, want no error", err)
}
if _, ok := r.ResponseModifier().(*martiantest.Modifier); !ok {
t.Fatal("r.ResponseModifier().(*martiantest.Modifier): got !ok, want ok")
}
reqmod := r.RequestModifier()
if reqmod != nil {
t.Error("r.RequestModifier(): got not nil, want nil")
}
}
func TestNewResultMismatchedScopes(t *testing.T) {
reqmod := martian.RequestModifierFunc(
func(*http.Request) error {
return nil
})
resmod := martian.ResponseModifierFunc(
func(*http.Response) error {
return nil
})
if _, err := NewResult(reqmod, []ModifierType{Response}); err == nil {
t.Error("NewResult(reqmod, RESPONSE): got nil, want error")
}
if _, err := NewResult(resmod, []ModifierType{Request}); err == nil {
t.Error("NewResult(resmod, REQUEST): got nil, want error")
}
if _, err := NewResult(reqmod, []ModifierType{ModifierType("unknown")}); err == nil {
t.Error("NewResult(resmod, REQUEST): got nil, want error")
}
}
func TestResultModifierAccessors(t *testing.T) {
tm := martiantest.NewModifier()
r := &Result{
reqmod: tm,
resmod: nil,
}
if reqmod := r.RequestModifier(); reqmod == nil {
t.Error("r.RequestModifier: got nil, want reqmod")
}
if resmod := r.ResponseModifier(); resmod != nil {
t.Error("r.ResponseModifier: got resmod, want nil")
}
r = &Result{
reqmod: nil,
resmod: tm,
}
if reqmod := r.RequestModifier(); reqmod != nil {
t.Errorf("r.RequestModifier: got reqmod, want nil")
}
if resmod := r.ResponseModifier(); resmod == nil {
t.Error("r.ResponseModifier: got nil, want resmod")
}
}
func TestParseUnknownModifierReturnsError(t *testing.T) {
msg := []byte(`{
"unknown.Key": {
"scope": ["request", "response"]
}
}`)
_, err := FromJSON(msg)
umerr, ok := err.(ErrUnknownModifier)
if !ok {
t.Fatalf("FromJSON(): got %v, want ErrUnknownModifier", err)
}
if got, want := umerr.Error(), "parse: unknown modifier: unknown.Key"; got != want {
t.Errorf("Error(): got %q, want %q", got, want)
}
}
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