// Copyright 2023 Google LLC
//
// 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.

'use strict';

const sinon = require('sinon');
const assert = require('assert');
const {getFunction} = require('@google-cloud/functions-framework/testing');

require('..');

const stubConsole = function () {
  sinon.stub(console, 'error');
  sinon.stub(console, 'log');
};

const restoreConsole = function () {
  console.log.restore();
  console.error.restore();
};

beforeEach(stubConsole);
afterEach(restoreConsole);

describe('functions_log_helloworld', () => {
  it('should write to log', () => {
    const expectedMsg = 'I am a log entry!';
    const res = {end: sinon.stub()};

    getFunction('helloWorld')(null, res);

    assert.strictEqual(console.log.callCount, 1);
    assert.deepStrictEqual(console.log.firstCall.args, [expectedMsg]);
    assert.strictEqual(res.end.callCount, 1);
    assert.deepStrictEqual(res.end.firstCall.args, []);
  });
});
