rename tests folder to the more accurate usecases

src/usecases/dialog.js

@@ -0,0 +1,47 @@
+/*
+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');
+
+
+async function acceptDialog(session, expectedContent) {
+    const foundDialog = await acceptDialogMaybe(session, expectedContent);
+    if (!foundDialog) {
+        throw new Error("could not find a dialog");
+    }
+}
+
+async function acceptDialogMaybe(session, expectedContent) {
+    let dialog = null;
+    try {
+        dialog = await session.waitAndQuery(".mx_QuestionDialog");
+    } catch(err) {
+        return false;
+    }
+    if (expectedContent) {
+        const contentElement = await dialog.$(".mx_Dialog_content");
+        const content = await (await contentElement.getProperty("innerText")).jsonValue();
+        assert.ok(content.indexOf(expectedContent) !== -1);
+    }
+    const primaryButton = await dialog.$(".mx_Dialog_primary");
+    await primaryButton.click();
+    return true;
+}
+
+module.exports = {
+    acceptDialog,
+    acceptDialogMaybe,
+};