Created test suite for the AbstractService
This patch creates a test suite for the AbstractService. Change-Id: I23c61d3f9b77e911e24a740ad489e25d0ac08c86
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/*
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* Copyright (c) 2016 Michael Krotscheck.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* This file contains test data for fetchMock, to simplify bootstrapping of unit tests for
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* cross-service version detection.
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*/
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/**
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* URLs to match the test data below.
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*/
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const rootUrl = "http://example.com/";
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/**
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* A mock list of supported versions for the below requests.
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*
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* @type {Array}
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*/
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const versions = [
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'v2.3'
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];
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/**
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* Build a new FetchMock configuration for the versions (root) endpoint.
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*
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* @returns {{}} A full FetchMock configuration for Glance's Root Resource.
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*/
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function rootResponse() {
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return {
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method: 'GET',
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matcher: rootUrl,
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response: {
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versions: [
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{
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status: "CURRENT",
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id: "v2.3",
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links: [
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{
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href: `${rootUrl}/v2/`,
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rel: "self"
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}
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]
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},
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{
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status: "SUPPORTED",
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id: "v2.2",
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links: [
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{
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href: `${rootUrl}/v2/`,
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rel: "self"
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}
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]
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},
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{
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status: "SUPPORTED",
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id: "v2.1",
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links: [
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{
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href: `${rootUrl}/v2/`,
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rel: "self"
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}
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]
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},
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{
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status: "SUPPORTED",
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id: "v2.0",
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links: [
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{
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href: `${rootUrl}/v2/`,
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rel: "self"
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}
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]
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},
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{
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status: "SUPPORTED",
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id: "v1.1",
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links: [
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{
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href: `${rootUrl}/v1/`,
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rel: "self"
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}
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]
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},
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{
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status: "SUPPORTED",
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id: "v1.0",
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links: [
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{
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href: `${rootUrl}/v1/`,
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rel: "self"
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}
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]
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}
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]
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}
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};
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}
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export {
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rootUrl,
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versions,
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rootResponse
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};
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@ -0,0 +1,146 @@
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/*
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* Copyright (c) 2016 Michael Krotscheck.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import AbstractService from "../../../src/util/abstract_service";
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import * as mockData from '../helpers/data/versions'; // Might as well use keystone
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import fetchMock from "fetch-mock";
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describe('AbstractService', () => {
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afterEach(fetchMock.restore);
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it('should provide a singleton HTTP instance', () => {
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let service = new AbstractService(mockData.rootUrl, mockData.versions);
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expect(service._http).toBeUndefined();
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let http1 = service.http;
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expect(service._http).toBeDefined();
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expect(http1).not.toBeNull();
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let http2 = service.http;
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expect(http1).toBe(http2);
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});
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it('should return supported versions', () => {
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let service = new AbstractService(mockData.rootUrl, mockData.versions);
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expect(service.supportedVersions).toEqual(mockData.versions);
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});
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it('should return an empty array if no versions are configured', () => {
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let service = new AbstractService(mockData.rootUrl, null);
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expect(service.supportedVersions).toEqual([]);
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});
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describe("versions()", () => {
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it("Should return a list of all versions available from this resource", (done) => {
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const service = new AbstractService(mockData.rootUrl, mockData.versions);
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fetchMock.mock(mockData.rootResponse());
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service.versions()
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.then((versions) => {
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// Quick sanity check.
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expect(versions.length).toBe(6);
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done();
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})
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.catch((error) => done.fail(error));
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});
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it("Should return a list of all versions available from this resource", (done) => {
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const service = new AbstractService(mockData.rootUrl, mockData.versions);
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fetchMock.mock(mockData.rootResponse());
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service.versions()
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.then((versions) => {
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// Quick sanity check.
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expect(versions.length).toBe(6);
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done();
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})
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.catch((error) => done.fail(error));
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});
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it("Should NOT cache its results", (done) => {
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const service = new AbstractService(mockData.rootUrl, mockData.versions);
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const mockOptions = mockData.rootResponse();
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fetchMock.mock(mockOptions);
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service.versions()
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.then(() => {
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// Validate that the mock has only been invoked once
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expect(fetchMock.calls(mockOptions.name).length).toEqual(1);
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return service.versions();
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})
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.then(() => {
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expect(fetchMock.calls(mockOptions.name).length).toEqual(2);
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done();
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})
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.catch((error) => done.fail(error));
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});
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});
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describe("version()", () => {
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it("Should return a supported version of the service API.", (done) => {
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const service = new AbstractService(mockData.rootUrl, mockData.versions);
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fetchMock.mock(mockData.rootResponse());
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service.version()
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.then((version) => {
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expect(version.id).toEqual('v2.3');
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done();
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})
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.catch((error) => done.fail(error));
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});
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it("Should throw an exception if no supported version is found.", (done) => {
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const service = new AbstractService(mockData.rootUrl, mockData.versions);
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// Build an invalid mock object.
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const mockOptions = mockData.rootResponse();
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mockOptions.response.versions.shift();
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fetchMock.mock(mockOptions);
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service.version()
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.then((response) => done.fail(response))
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.catch((error) => {
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expect(error).not.toBeNull();
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done();
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});
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});
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it("Should NOT cache its results", (done) => {
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const service = new AbstractService(mockData.rootUrl, mockData.versions);
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const mockOptions = mockData.rootResponse();
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fetchMock.mock(mockOptions);
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service.version()
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.then(() => {
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// Validate that the mock has only been invoked once
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expect(fetchMock.calls(mockOptions.name).length).toEqual(1);
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return service.version();
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})
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.then(() => {
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expect(fetchMock.calls(mockOptions.name).length).toEqual(2);
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done();
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})
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.catch((error) => done.fail(error));
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});
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});
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});
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