/*
 *  @license
 *    Copyright 2018 Brigham Young University
 *
 *    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.
 */
import * as AWS from 'aws-sdk';
import { expect } from 'chai';
import 'mocha';
import * as sinon from 'sinon';
import * as lambdaCalls from '../../src/aws/lambda-calls';

describe('lambda calls module', () => {
    let sandbox: sinon.SinonSandbox;

    beforeEach(async () => {
        sandbox = sinon.sandbox.create();
    });

    afterEach(() => {
        sandbox.restore();
    });

    describe('getSecurityGroupsByNameTag', () => {
        let invokeStub: sinon.SinonStub;
        beforeEach(() => {
            invokeStub = sandbox.stub();
            sandbox.stub(AWS, 'Lambda').returns({
                invoke: () => ({ promise: invokeStub })
            });
        });

        it('should call the lambda and return the repsonse', async () => {
            invokeStub.resolves({
                Payload: '{}'
            });
            const response = await lambdaCalls.invokeLambda('FakeFunction', {});
            expect(invokeStub.callCount).to.equal(1);
            expect(response).to.deep.equal({});
        });

        it('should call the lambda and return undefined if no response came back', async () => {
            invokeStub.resolves({});
            const response = await lambdaCalls.invokeLambda('FakeFunction', {});
            expect(invokeStub.callCount).to.equal(1);
            expect(response).to.equal(undefined);
        });
    });
});