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PerformanceTotal Service

wdio-performancetotal-service is a 3rd party package, for more information please see GitHub | npm Note:
For WebdriverIO v8 use version 3.x.x.
For WebdriverIO v7 use version 2.x.x.
For WebdriverIO v6 use version 1.x.x.


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With this plugin for webdriver.io you can easily add performance analysis to any flow in your tests.

Installation

The easiest way to install this module as a (dev-)dependency is by using the following command:

npm install wdio-performancetotal-service --save

Or:

npm install wdio-performancetotal-service --save-dev

Usage

Add wdio-performancetotal-service to your wdio.conf.js:

exports.config = {
// ...
services: ['performancetotal']
// ...
};

...or with the service options:

exports.config = {
// ...
services: [
['performancetotal',
// The options (with default values)
{
disableAppendToExistingFile: false,
performanceResultsFileName: "performance-results",
dropResultsFromFailedTest: false,
performanceResultsDirectory: "performance-results",
analyzeByBrowser: false
}]
]
// ...
};

Options

disableAppendToExistingFile

When set to true, new test runs or tests from another spec file will overwrite any existing performance data. When set to false (default), performance data will be added to the existing data.

performanceResultsFileName

You can set the default results file name (performance-results). A newly created results file normally overwrites the old file. If you want to keep old files, it is recommended to add a timestamp to the file name. For example:

...
performanceResultsFileName: `performance-results_${new Date().getTime()}`
...

dropResultsFromFailedTest

Default is false. When the value is set to true, performance analysis from failed tests would be excluded.

performanceResultsDirectory

You can override the default path for the results directory in the project's root dir. For example:

...
performanceResultsFileName: "results-dir/performance-total-results"
...

analyzeByBrowser

Default is false. If true, the performance data would be grouped also by the browser type.

Usage in test

Just import performancetotal where you need it, whether it be your test file or any other class:

import { performancetotal } from "wdio-performancetotal-service";

it("should test github startup performance", () => {
// ...
performancetotal.sampleStart("Startup");

browser.url("https://github.com/");

performancetotal.sampleEnd("Startup");
//...
});

It is possible to get the time span for a single sample inside a test:

it("should test github startup performance", () => {
// ...
performancetotal.sampleStart("Startup");

browser.url("https://github.com/");

performancetotal.sampleEnd("Startup");

expect(performancetotal.getSampleTime("Startup")).to.be.at.most(1000);
});

Getting the results

A new results directory (the default directory name is performance-results) is created in your project's root folder and when all the tests are completed two files are created inside it: performance-results.json and performance-results.csv. The analyzed data includes: average time, standard error of mean(sem), number of samples, min value, max value, earliest time and latest time.

Typescript support

Typescript is supported for this plugin.

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