element-web/test/end-to-end-tests/src/logbuffer.js
Travis Ralston e66f2a6c3f Revert ES6ification of end-to-end tests and add instructions for Windows
Because the tests are run directly by node, we have to use the CommonJS module syntax. We could run the thing through babel, but then we just have another babel.

Windows instructions are from experience and may not be optimized.
2020-01-10 10:13:41 -07:00

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JavaScript

/*
Copyright 2018 New Vector Ltd
Copyright 2019 The Matrix.org Foundation C.I.C.
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.
*/
module.exports = class LogBuffer {
constructor(page, eventName, eventMapper, reduceAsync=false, initialValue = "") {
this.buffer = initialValue;
page.on(eventName, (arg) => {
const result = eventMapper(arg);
if (reduceAsync) {
result.then((r) => this.buffer += r);
} else {
this.buffer += result;
}
});
}
};