/*
 * Copyright © 2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
 *
 * 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.
 *
 * @author		Aeneas Rekkas <aeneas+oss@aeneas.io>
 * @copyright 	2015-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
 * @license 	Apache-2.0
 *
 */

package fosite_test

import (
	"context"
	"fmt"
	"testing"

	"github.com/golang/mock/gomock"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	. "github.com/ory/fosite"
	"github.com/ory/fosite/internal"
)

func TestNewAccessResponse(t *testing.T) {
	ctrl := gomock.NewController(t)
	handler := internal.NewMockTokenEndpointHandler(ctrl)
	defer ctrl.Finish()

	f := &Fosite{}
	for k, c := range []struct {
		handlers  TokenEndpointHandlers
		mock      func()
		expectErr error
		expect    AccessResponder
	}{
		{
			mock:      func() {},
			handlers:  TokenEndpointHandlers{},
			expectErr: ErrServerError,
		},
		{
			mock: func() {
				handler.EXPECT().PopulateTokenEndpointResponse(gomock.Any(), gomock.Any(), gomock.Any()).Return(ErrServerError)
			},
			handlers:  TokenEndpointHandlers{handler},
			expectErr: ErrServerError,
		},
		{
			mock: func() {
				handler.EXPECT().PopulateTokenEndpointResponse(gomock.Any(), gomock.Any(), gomock.Any()).Return(nil)
			},
			handlers:  TokenEndpointHandlers{handler},
			expectErr: ErrServerError,
		},
		{
			mock: func() {
				handler.EXPECT().PopulateTokenEndpointResponse(gomock.Any(), gomock.Any(), gomock.Any()).Do(func(_ context.Context, _ AccessRequester, resp AccessResponder) {
					resp.SetAccessToken("foo")
				}).Return(nil)
			},
			handlers:  TokenEndpointHandlers{handler},
			expectErr: ErrServerError,
		},
		{
			mock: func() {
				handler.EXPECT().PopulateTokenEndpointResponse(gomock.Any(), gomock.Any(), gomock.Any()).Do(func(_ context.Context, _ AccessRequester, resp AccessResponder) {
					resp.SetAccessToken("foo")
					resp.SetTokenType("bar")
				}).Return(nil)
			},
			handlers: TokenEndpointHandlers{handler},
			expect: &AccessResponse{
				Extra:       map[string]interface{}{},
				AccessToken: "foo",
				TokenType:   "bar",
			},
		},
	} {
		t.Run(fmt.Sprintf("case=%d", k), func(t *testing.T) {
			f.TokenEndpointHandlers = c.handlers
			c.mock()
			ar, err := f.NewAccessResponse(context.TODO(), nil)

			if c.expectErr != nil {
				assert.EqualError(t, err, c.expectErr.Error())
			} else {
				require.NoError(t, err)
				assert.Equal(t, ar, c.expect)
			}
		})
	}
}