/*
 *
 * Copyright 2022 gRPC authors.
 *
 * 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 bootstrap

import (
	"encoding/json"
	"testing"

	"google.golang.org/grpc/credentials"
)

const testCredsBuilderName = "test_creds"

var builder = &testCredsBuilder{}

func init() {
	RegisterCredentials(builder)
}

type testCredsBuilder struct {
	config json.RawMessage
}

func (t *testCredsBuilder) Build(config json.RawMessage) (credentials.Bundle, error) {
	t.config = config
	return nil, nil
}

func (t *testCredsBuilder) Name() string {
	return testCredsBuilderName
}

func TestRegisterNew(t *testing.T) {
	c := GetCredentials(testCredsBuilderName)
	if c == nil {
		t.Fatalf("GetCredentials(%q) credential = nil", testCredsBuilderName)
	}

	const sampleConfig = "sample_config"
	rawMessage := json.RawMessage(sampleConfig)
	if _, err := c.Build(rawMessage); err != nil {
		t.Errorf("Build(%v) error = %v, want nil", rawMessage, err)
	}

	if got, want := string(builder.config), sampleConfig; got != want {
		t.Errorf("Build config = %v, want %v", got, want)
	}
}