Run some tests under karma

Including a regression test for
https://github.com/vector-im/vector-web/issues/1314

.gitignore

@@ -1,8 +1,9 @@
-node_modules
-vector/bundle.*
-lib
-.DS_Store
-key.pem
-cert.pem
-vector/components.css
-packages/
+/cert.pem
+/.DS_Store
+/karma-reports
+/key.pem
+/lib
+/node_modules
+/packages/
+/vector/bundle.*
+/vector/components.css

jenkins.sh

@@ -13,6 +13,9 @@ npm install
 # we may be using a dev branch of react-sdk, in which case we need to build it
 (cd node_modules/matrix-react-sdk && npm run build)
 
+# run the mocha tests
+npm run test
+
 # build our artifacts; dumps them in ./vector
 npm run build
 

karma.conf.js

@@ -0,0 +1,134 @@
+// karma.conf.js - the config file for karma, which runs our tests.
+
+var path = require('path');
+var fs = require('fs');
+var webpack = require('webpack');
+
+/*
+ * We use webpack to build our tests. It's a pain to have to wait for webpack
+ * to build everything; however it's the easiest way to load our dependencies
+ * from node_modules.
+ *
+ * If you run karma in multi-run mode (with `npm run test-multi`), it will watch
+ * the tests for changes, and webpack will rebuild using a cache. This is much quicker
+ * than a clean rebuild.
+ */
+
+// the name of the test file. By default, a special file which runs all tests.
+var testFile = process.env.KARMA_TEST_FILE || 'test/all-tests.js';
+
+process.env.PHANTOMJS_BIN = 'node_modules/.bin/phantomjs';
+process.env.Q_DEBUG = 1;
+
+module.exports = function (config) {
+    config.set({
+        // frameworks to use
+        // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+        frameworks: ['mocha'],
+
+        // list of files / patterns to load in the browser
+        files: [
+            testFile,
+            {pattern: 'vector/img/*', watched: false, included: false, served: true, nocache: false},
+        ],
+
+        // redirect img links to the karma server
+        proxies: {
+            "/img/": "/base/vector/img/",
+        },
+        
+        // preprocess matching files before serving them to the browser
+        // available preprocessors:
+        // https://npmjs.org/browse/keyword/karma-preprocessor
+        preprocessors: {
+            'test/**/*.js': ['webpack', 'sourcemap']
+        },
+
+        // test results reporter to use
+        // possible values: 'dots', 'progress'
+        // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+        reporters: ['progress', 'junit'],
+
+        // web server port
+        port: 9876,
+
+        // enable / disable colors in the output (reporters and logs)
+        colors: true,
+
+        // level of logging
+        // possible values: config.LOG_DISABLE || config.LOG_ERROR ||
+        // config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+        logLevel: config.LOG_INFO,
+
+        // enable / disable watching file and executing tests whenever any file
+        // changes
+        autoWatch: true,
+
+        // start these browsers
+        // available browser launchers:
+        // https://npmjs.org/browse/keyword/karma-launcher
+        browsers: [
+            'Chrome',
+            //'PhantomJS',
+        ],
+
+        // Continuous Integration mode
+        // if true, Karma captures browsers, runs the tests and exits
+        // singleRun: false,
+
+        // Concurrency level
+        // how many browser should be started simultaneous
+        concurrency: Infinity,
+
+        junitReporter: {
+            outputDir: 'karma-reports',
+        },
+
+        webpack: {
+            module: {
+                loaders: [
+                    { test: /\.json$/, loader: "json" },
+                    {
+                        test: /\.js$/, loader: "babel",
+                        include: [path.resolve('./src'),
+                                  path.resolve('./test'),
+                                 ],
+                        query: {
+                            // we're using babel 5, for consistency with
+                            // the release build, which doesn't use the
+                            // presets.
+                            // presets: ['react', 'es2015'],
+                        },
+                    },
+                ],
+                noParse: [
+                    // don't parse the languages within highlight.js. They
+                    // cause stack overflows
+                    // (https://github.com/webpack/webpack/issues/1721), and
+                    // there is no need for webpack to parse them - they can
+                    // just be included as-is.
+                    /highlight\.js\/lib\/languages/,
+
+                    // also disable parsing for sinon, because it
+                    // tries to do voodoo with 'require' which upsets
+                    // webpack (https://github.com/webpack/webpack/issues/304)
+                    /sinon\/pkg\/sinon\.js$/,
+                ],
+            },
+            resolve: {
+                alias: {
+                    // alias any requires to the react module to the one in our path, otherwise
+                    // we tend to get the react source included twice when using npm link.
+                    react: path.resolve('./node_modules/react'),
+                    
+                    sinon: 'sinon/pkg/sinon.js',
+                },
+                root: [
+                    path.resolve('./src'),
+                    path.resolve('./test'),
+                ],
+            },
+            devtool: 'inline-source-map',
+        },
+    });
+};

package.json

@@ -25,7 +25,9 @@
     "start": "parallelshell \"npm run start:js\" \"npm run start:skins:css\" \"http-server -c 1 vector\"",
     "start:prod": "parallelshell \"npm run start:js:prod\" \"npm run start:skins:css\" \"http-server -c 1 vector\"",
     "clean": "rimraf lib vector/bundle.css vector/bundle.js vector/bundle.js.map vector/webpack.css*",
-    "prepublish": "npm run build:css && npm run build:compile"
+    "prepublish": "npm run build:css && npm run build:compile",
+    "test": "karma start --single-run=true --browsers PhantomJS",
+    "test:multi": "karma start"
   },
   "dependencies": {
     "babel-polyfill": "^6.5.0",
@@ -41,7 +43,7 @@
     "matrix-react-sdk": "matrix-org/matrix-react-sdk#develop",
     "modernizr": "^3.1.0",
     "q": "^1.4.1",
-    "react": "^0.14.2",
+    "react": "^0.14.8",
     "react-dnd": "^2.0.2",
     "react-dnd-html5-backend": "^2.0.0",
     "react-dom": "^0.14.2",
@@ -54,11 +56,23 @@
     "babel-loader": "^5.3.2",
     "catw": "^1.0.1",
     "css-raw-loader": "^0.1.1",
+    "expect": "^1.16.0",
     "http-server": "^0.8.4",
     "json-loader": "^0.5.3",
+    "karma": "^0.13.22",
+    "karma-chrome-launcher": "^0.2.3",
+    "karma-cli": "^0.1.2",
+    "karma-junit-reporter": "^0.4.1",
+    "karma-mocha": "^0.2.2",
+    "karma-phantomjs-launcher": "^1.0.0",
+    "karma-sourcemap-loader": "^0.3.7",
+    "karma-webpack": "^1.7.0",
+    "mocha": "^2.4.5",
     "parallelshell": "^1.2.0",
+    "phantomjs-prebuilt": "^2.1.7",
+    "react-addons-test-utils": "^0.14.8",
     "rimraf": "^2.4.3",
     "source-map-loader": "^0.1.5",
-    "webpack": "^1.12.13"
+    "webpack": "^1.12.14"
   }
 }

test/all-tests.js

@@ -0,0 +1,7 @@
+// all-tests.js
+//
+// Our master test file: uses the webpack require API to find our test files
+// and run them
+
+var context = require.context('./app-tests', true, /\.jsx?$/);
+context.keys().forEach(context);

test/app-tests/joining.js

@@ -0,0 +1,165 @@
+/*
+Copyright 2016 OpenMarket Ltd
+
+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.
+*/
+
+/* joining.js: tests for the various paths when joining a room */
+
+require('skin-sdk');
+
+var jssdk = require('matrix-js-sdk');
+
+var sdk = require('matrix-react-sdk');
+var peg = require('matrix-react-sdk/lib/MatrixClientPeg');
+var dis = require('matrix-react-sdk/lib/dispatcher');
+var MatrixChat = sdk.getComponent('structures.MatrixChat');
+var RoomDirectory = sdk.getComponent('structures.RoomDirectory');
+var RoomPreviewBar = sdk.getComponent('rooms.RoomPreviewBar');
+var RoomView = sdk.getComponent('structures.RoomView');
+
+var React = require('react');
+var ReactDOM = require('react-dom');
+var ReactTestUtils = require('react-addons-test-utils');
+var expect = require('expect');
+var q = require('q');
+
+var test_utils = require('../test-utils');
+var MockHttpBackend = require('../mock-request');
+
+var HS_URL='http://localhost';
+var IS_URL='http://localhost';
+var USER_ID='@me:localhost';
+var ACCESS_TOKEN='access_token';
+
+describe('joining a room', function () {
+    describe('over federation', function () {
+        var parentDiv;
+        var httpBackend;
+        var matrixChat;
+        
+        beforeEach(function() {
+            test_utils.beforeEach(this);
+            httpBackend = new MockHttpBackend();
+            jssdk.request(httpBackend.requestFn);
+            parentDiv = document.createElement('div');
+            document.body.appendChild(parentDiv);
+        });
+
+        afterEach(function() {
+            if (parentDiv) {
+                ReactDOM.unmountComponentAtNode(parentDiv);
+                document.body.removeChild(parentDiv);
+                parentDiv = null;
+            }
+            httpBackend.verifyNoOutstandingRequests();
+        });
+        
+        it('should not get stuck at a spinner', function(done) {
+            var ROOM_ALIAS = '#alias:localhost';
+            var ROOM_ID = '!id:localhost';
+            
+            httpBackend.when('PUT', '/presence/'+encodeURIComponent(USER_ID)+'/status')
+                .respond(200, {});
+            if (test_utils.browserSupportsWebRTC()) {
+                httpBackend.when('GET', '/voip/turnServer').respond(200, {});
+            }
+            httpBackend.when('GET', '/pushrules').respond(200, {});
+            httpBackend.when('POST', '/filter').respond(200, { filter_id: 'fid' });
+            httpBackend.when('GET', '/sync').respond(200, {});
+            httpBackend.when('GET', '/publicRooms').respond(200, {chunk: []});
+
+            // start with a logged-in client
+            peg.replaceUsingAccessToken(HS_URL, IS_URL, USER_ID, ACCESS_TOKEN);
+            
+            var mc = <MatrixChat config={{}}/>;
+            matrixChat = ReactDOM.render(mc, parentDiv);
+
+            // switch to the Directory
+            dis.dispatch({
+                action: 'view_room_directory',
+            });
+
+            var roomView;
+            httpBackend.flush().then(() => {
+                var roomDir = ReactTestUtils.findRenderedComponentWithType(
+                    matrixChat, RoomDirectory);
+
+                // enter an alias in the input, and simulate enter
+                var input = ReactTestUtils.findRenderedDOMComponentWithTag(
+                    roomDir, 'input');
+                input.value = ROOM_ALIAS;
+                ReactTestUtils.Simulate.keyUp(input, {key: 'Enter'});
+
+                // that should create a roomview which will start a peek; wait
+                // for the peek.
+                httpBackend.when('GET', '/rooms/'+encodeURIComponent(ROOM_ALIAS)+"/initialSync")
+                    .respond(401, {errcode: 'M_GUEST_ACCESS_FORBIDDEN'});
+                return httpBackend.flush();
+            }).then(() => {
+                httpBackend.verifyNoOutstandingExpectation();
+
+                // we should now have a roomview, with a preview bar
+                roomView = ReactTestUtils.findRenderedComponentWithType(
+                    matrixChat, RoomView);
+
+                var previewBar = ReactTestUtils.findRenderedComponentWithType(
+                    roomView, RoomPreviewBar);
+
+                var joinLink = ReactTestUtils.findRenderedDOMComponentWithTag(
+                    previewBar, 'a');
+
+                ReactTestUtils.Simulate.click(joinLink);
+
+                // that will fire off a request to check our displayname, followed by a
+                // join request
+                httpBackend.when('GET', '/profile/'+encodeURIComponent(USER_ID))
+                    .respond(200, {displayname: 'boris'});
+                httpBackend.when('POST', '/join/'+encodeURIComponent(ROOM_ALIAS))
+                    .respond(200, {room_id: ROOM_ID});
+                return httpBackend.flush();
+            }).then(() => {
+                httpBackend.verifyNoOutstandingExpectation();
+
+                // the roomview should now be loading
+                expect(roomView.state.room).toBe(null);
+                expect(roomView.state.joining).toBe(true);
+
+                // there should be a spinner
+                ReactTestUtils.findRenderedDOMComponentWithClass(
+                    roomView, "mx_Spinner");
+
+                // now send the room down the /sync pipe
+                httpBackend.when('GET', '/sync').
+                    respond(200, {
+                        rooms: {
+                            join: {
+                                [ROOM_ID]: {
+                                    state: {},
+                                    timeline: {
+                                        events: [],
+                                        limited: true,
+                                    },
+                                },
+                            },
+                        },
+                    });
+                return httpBackend.flush();
+            }).then(() => {
+                // now the room should have loaded
+                expect(roomView.state.room).toExist();
+                expect(roomView.state.joining).toBe(false);
+            }).done(done, done);
+        });
+    });
+});

test/mock-request.js

@@ -0,0 +1,228 @@
+"use strict";
+var q = require("q");
+var expect = require('expect');
+
+/**
+ * Construct a mock HTTP backend, heavily inspired by Angular.js.
+ * @constructor
+ */
+function HttpBackend() {
+    this.requests = [];
+    this.expectedRequests = [];
+    var self = this;
+    // the request function dependency that the SDK needs.
+    this.requestFn = function(opts, callback) {
+        var realReq = new Request(opts.method, opts.uri, opts.body, opts.qs);
+        realReq.callback = callback;
+        console.log("HTTP backend received request: %s %s", opts.method, opts.uri);
+        self.requests.push(realReq);
+
+        var abort = function() {
+            var idx = self.requests.indexOf(realReq);
+            if (idx >= 0) {
+                console.log("Aborting HTTP request: %s %s", opts.method, opts.uri);
+                self.requests.splice(idx, 1);
+            }
+        }
+        return {
+            abort: abort
+        };
+    };
+}
+HttpBackend.prototype = {
+    /**
+     * Respond to all of the requests (flush the queue).
+     * @param {string} path The path to flush (optional) default: all.
+     * @param {integer} numToFlush The number of things to flush (optional), default: all.
+     * @return {Promise} resolved when there is nothing left to flush.
+     */
+    flush: function(path, numToFlush) {
+        var defer = q.defer();
+        var self = this;
+        var flushed = 0;
+        var triedWaiting = false;
+        console.log(
+            "HTTP backend flushing... (path=%s  numToFlush=%s)", path, numToFlush
+        );
+        var tryFlush = function() {
+            // if there's more real requests and more expected requests, flush 'em.
+            console.log(
+                "  trying to flush queue => reqs=%s expected=%s [%s]",
+                self.requests.length, self.expectedRequests.length, path
+            );
+            if (self._takeFromQueue(path)) {
+                // try again on the next tick.
+                console.log("  flushed. Trying for more. [%s]", path);
+                flushed += 1;
+                if (numToFlush && flushed === numToFlush) {
+                    console.log("  [%s] Flushed assigned amount: %s", path, numToFlush);
+                    defer.resolve();
+                }
+                else {
+                    setTimeout(tryFlush, 0);
+                }
+            }
+            else if (flushed === 0 && !triedWaiting) {
+                // we may not have made the request yet, wait a generous amount of
+                // time before giving up.
+                setTimeout(tryFlush, 5);
+                triedWaiting = true;
+            }
+            else {
+                console.log("  no more flushes. [%s]", path);
+                defer.resolve();
+            }
+        };
+
+        setTimeout(tryFlush, 0);
+
+        return defer.promise;
+    },
+
+    /**
+     * Attempts to resolve requests/expected requests.
+     * @param {string} path The path to flush (optional) default: all.
+     * @return {boolean} true if something was resolved.
+     */
+    _takeFromQueue: function(path) {
+        var req = null;
+        var i, j;
+        var matchingReq, expectedReq, testResponse = null;
+        for (i = 0; i < this.requests.length; i++) {
+            req = this.requests[i];
+            for (j = 0; j < this.expectedRequests.length; j++) {
+                expectedReq = this.expectedRequests[j];
+                if (path && path !== expectedReq.path) { continue; }
+                if (expectedReq.method === req.method &&
+                        req.path.indexOf(expectedReq.path) !== -1) {
+                    if (!expectedReq.data || (JSON.stringify(expectedReq.data) ===
+                            JSON.stringify(req.data))) {
+                        matchingReq = expectedReq;
+                        this.expectedRequests.splice(j, 1);
+                        break;
+                    }
+                }
+            }
+
+            if (matchingReq) {
+                // remove from request queue
+                this.requests.splice(i, 1);
+                i--;
+
+                for (j = 0; j < matchingReq.checks.length; j++) {
+                    matchingReq.checks[j](req);
+                }
+                testResponse = matchingReq.response;
+                console.log("    responding to %s", matchingReq.path);
+                var body = testResponse.body;
+                if (Object.prototype.toString.call(body) == "[object Function]") {
+                    body = body(req.path, req.data);
+                }
+                req.callback(
+                    testResponse.err, testResponse.response, body
+                );
+                matchingReq = null;
+            }
+        }
+        if (testResponse) {  // flushed something
+            return true;
+        }
+        return false;
+    },
+
+    /**
+     * Makes sure that the SDK hasn't sent any more requests to the backend.
+     */
+    verifyNoOutstandingRequests: function() {
+        var firstOutstandingReq = this.requests[0] || {};
+        expect(this.requests.length).toEqual(0,
+            "Expected no more HTTP requests but received request to " +
+            firstOutstandingReq.path
+        );
+    },
+
+    /**
+     * Makes sure that the test doesn't have any unresolved requests.
+     */
+    verifyNoOutstandingExpectation: function() {
+        var firstOutstandingExpectation = this.expectedRequests[0] || {};
+        expect(this.expectedRequests.length).toEqual(
+            0,
+            "Expected to see HTTP request for "
+                + firstOutstandingExpectation.method
+                + " " + firstOutstandingExpectation.path
+        );
+    },
+
+    /**
+     * Create an expected request.
+     * @param {string} method The HTTP method
+     * @param {string} path The path (which can be partial)
+     * @param {Object} data The expected data.
+     * @return {Request} An expected request.
+     */
+    when: function(method, path, data) {
+        var pendingReq = new Request(method, path, data);
+        this.expectedRequests.push(pendingReq);
+        return pendingReq;
+    }
+};
+
+function Request(method, path, data, queryParams) {
+    this.method = method;
+    this.path = path;
+    this.data = data;
+    this.queryParams = queryParams;
+    this.callback = null;
+    this.response = null;
+    this.checks = [];
+}
+Request.prototype = {
+    /**
+     * Execute a check when this request has been satisfied.
+     * @param {Function} fn The function to execute.
+     * @return {Request} for chaining calls.
+     */
+    check: function(fn) {
+        this.checks.push(fn);
+        return this;
+    },
+
+    /**
+     * Respond with the given data when this request is satisfied.
+     * @param {Number} code The HTTP status code.
+     * @param {Object|Function} data The HTTP JSON body. If this is a function,
+     * it will be invoked when the JSON body is required (which should be returned).
+     */
+    respond: function(code, data) {
+        this.response = {
+            response: {
+                statusCode: code,
+                headers: {}
+            },
+            body: data,
+            err: null
+        };
+    },
+
+    /**
+     * Fail with an Error when this request is satisfied.
+     * @param {Number} code The HTTP status code.
+     * @param {Error} err The error to throw (e.g. Network Error)
+     */
+    fail: function(code, err) {
+        this.response = {
+            response: {
+                statusCode: code,
+                headers: {}
+            },
+            body: null,
+            err: err
+        };
+    },
+};
+
+/**
+ * The HttpBackend class.
+ */
+module.exports = HttpBackend;

test/skin-sdk.js

@@ -0,0 +1,8 @@
+/*
+ * skin-sdk.js
+ *
+ * Skins the react-sdk with the vector components
+ */
+
+var sdk = require('matrix-react-sdk');
+sdk.loadSkin(require('component-index'));

test/test-utils.js

@@ -0,0 +1,24 @@
+"use strict";
+
+var q = require('q');
+
+/**
+ * Perform common actions before each test case, e.g. printing the test case
+ * name to stdout.
+ * @param {Mocha.Context} context  The test context
+ */
+module.exports.beforeEach = function(context) {
+    var desc = context.currentTest.fullTitle();
+    console.log();
+    console.log(desc);
+    console.log(new Array(1 + desc.length).join("="));
+};
+
+/**
+ * returns true if the current environment supports webrtc
+ */
+module.exports.browserSupportsWebRTC = function() {
+    var n = global.window.navigator;
+    return n.getUserMedia || n.webkitGetUserMedia ||
+        n.mozGetUserMedia;
+};