rename tests folder to the more accurate usecases

src/usecases/join.js

@@ -0,0 +1,36 @@
+/*
+Copyright 2018 New Vector 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.
+*/
+
+const assert = require('assert');
+
+module.exports = async function join(session, roomName) {
+    session.log.step(`joins room "${roomName}"`);
+    //TODO: brittle selector
+    const directoryButton = await session.waitAndQuery('.mx_RoleButton[aria-label="Room directory"]');
+    await directoryButton.click();
+
+    const roomInput = await session.waitAndQuery('.mx_DirectorySearchBox_input');
+    await session.replaceInputText(roomInput, roomName);
+
+    const firstRoomLabel = await session.waitAndQuery('.mx_RoomDirectory_table .mx_RoomDirectory_name:first-child', 1000);
+    await firstRoomLabel.click();
+
+    const joinLink = await session.waitAndQuery('.mx_RoomPreviewBar_join_text a');
+    await joinLink.click();
+
+    await session.waitAndQuery('.mx_MessageComposer');
+    session.log.done();
+}