@oat-sa/tao-qunit-testrunner

v2.0.0

Published

24 days ago

TAO Frontend Unit & Integration Test Runner based on QUnit and Puppeteer

Downloads

179

tao-qunit-testrunner-fe

TAO Frontend Unit & Integration Test Runner based on QUnit and Puppeteer

How to use

Run all tests:

npx qunit-testrunner

Run specific test:

npx qunit-testrunner <testname>

Enable coverage:

npx qunit-testrunner --cov

Display coverage report

Requirement: npm install nyc

npx nyc report

Generate html coverage report

Requirement: npm install nyc

npx nyc report --reporter=lcov

Environment variables

| Option name | Description | Type | Default | | ---------------- | ------------------------------------- | --------- | ------- | | PARALLEL_TESTS | Define the amount of parallel tests | number | 5 | | REDIRECT_CONSOLE | Redirects browser console to terminal | boolean | false |

Command line arguments

| Option name | Description | Type | Default | | -------------------------- | ----------------------------------------------------- | --------- | ------------------------------- | | --config, -c | Define config file | string | .qunit-testrunner.config.json | | --test-dir, -d | Test directory name in root | string | test | | --root, -r | Root directory name | string | process.cwd() | | --spec | Test files pattern | glob | **/test.html | | --mock-api | Enables API Mock middleware | boolean | false | | --without-server | Start testrunner without server | boolean | false | | --reporter | Test result reporter (json, basic, stats | | | | | or custom path) | string | basic | | --verbose, -v, -vv ... | Verbose level | count | 0 | | --help -h | Display help | boolean | false | | | | | | | Webserver options | | | | | --keepalive | Do not run tests just start webserver | boolean | false | | --host | Webserver host | string | 127.0.0.1 | | --port, -p | Webserver port | number | random free port | | | | | | | Coverage options | | | | | --coverage, --cov | Enable coverage measurement | boolean | false | | --coverage-instrument-spec | Coverage instrument pattern from root | glob | src/**/*.js | | --coverage-output-dir | Coverage output directory in root | string | .nyc_output | | --clear-coverage-dir | Clear the coverage output directory before running | | | | | test, when coverage option is enabled | bool | true |

Config file

In the config file, all command line argument can be defined. If an argument is defined in config and in command line as well, the command line value overrides config value.

.qunit-testrunner.config.json:

{
  "verbose": 1,
  "testDir": "exampleTest",
  "coverage": true,
  "coverage-instrument-spec": "exampleSrc/**/*.js",
  "port": 8082
}

Recommended `package.json` scripts:

package.json:

"scripts": {
  "test": "npx qunit-testrunner",
  "test:keepAlive": "npx qunit-testrunner --keepalive",
  "test:cov": "npx qunit-testrunner --cov",
  "coverage": "nyc report",
  "coverage:html": "nyc report --reporter=lcov && open-cli coverage/lcov-report/index.html"
}

Coverage measurement description

Source files are instrumented when they are requested. --coverage-instrument-spec defines the pattern.
QUnit.done event listener is injected into test .html files. Injector injects into every files based on --spec pattern and puts event handler after <head>
Handler post __coverage__ result back to /__coverage__/[original path], like /test/foo/bar.html -> /__coverage__/foo/bar.html.
istanbulCoverage middleware collects coverage results and saves them into the directory provided by --coverage-output-dir. The file name is an md5 hash generated from coverage url.
nyc can generate coverage report based on coverage measurement. nyc report or nyc report --reporter=lcov

Small hack that generates empty coverage objects, so report will show totally uncovered files as well: npx nyc --instrument --include <src glob> --all --silent echo

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