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https://github.com/serut/meteor-coverage
Server and client coverage for Meteor
https://github.com/serut/meteor-coverage
Last synced: about 2 months ago
JSON representation
Server and client coverage for Meteor
- Host: GitHub
- URL: https://github.com/serut/meteor-coverage
- Owner: serut
- License: mit
- Created: 2016-03-25T09:19:59.000Z (over 8 years ago)
- Default Branch: master
- Last Pushed: 2023-06-17T10:54:59.000Z (about 1 year ago)
- Last Synced: 2024-01-06T22:47:17.014Z (6 months ago)
- Language: JavaScript
- Homepage:
- Size: 327 KB
- Stars: 54
- Watchers: 5
- Forks: 14
- Open Issues: 9
-
Metadata Files:
- Readme: README.md
- Changelog: changelog.md
- License: LICENSE
Lists
- awesome-meteor - lmieulet:meteor-coverage - Test coverage for Meteor. (Testing)
README
# meteor-coverage
A meteor package that allows you to get the statement, line, function and branch coverage of Meteor project and package.
This package uses the [istanbuljs](https://github.com/istanbuljs/istanbuljs) set of packages to generate reports. Starting from Meteor 1.8, this package does not instrument your code to get coverage as you can let babel do it using the [babel plugin istanbul](https://github.com/istanbuljs/babel-plugin-istanbul).
It's a debug only package, so it does not affect your production build.
## CI Platforms supported
| | Travis | Circle CI | Coveralls | Codecov | Codacy |
| ------------------------------------------------------------------------------------- | :---------------------------------------------------------------------------------------------------------------------------------------------------: | -------------------------------------------------------------------------------------------------------------------------------------------------: | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: | -----------------------------------------------------------------------------------------------------------------------------------------------------------: | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
| lmieulet:meteor-coverage | [](https://app.travis-ci.com/serut/meteor-coverage) | [](https://circleci.com/gh/serut/meteor-coverage) | [](https://coveralls.io/github/serut/meteor-coverage?branch=master) | [](https://codecov.io/gh/serut/meteor-coverage) | [](https://www.codacy.com/gh/serut/meteor-coverage/dashboard) [](https://www.codacy.com/app/l-mieulet/meteor-coverage) |
| [meteor-coverage-app-exemple](https://github.com/serut/meteor-coverage-app-exemple) | [](https://travis-ci.org/serut/meteor-coverage-app-exemple) | [](https://circleci.com/gh/serut/meteor-coverage-app-exemple) | [](https://coveralls.io/github/serut/meteor-coverage-app-exemple?branch=master) | [](https://codecov.io/gh/serut/meteor-coverage-app-exemple) | [](https://www.codacy.com/app/l-mieulet/meteor-coverage-app-exemplee) |
[](https://david-dm.org/serut/meteor-coverage)
[](https://david-dm.org/serut/meteor-coverage?type=dev)
## Compatibility
| meteor-coverage | Meteor | spacejam & practicalmeteor | meteortesting:mocha |
| ------------- |:----------:|:----------:|:----------:|
| 1.x | <1.6.0 | ✔ | ✘ |
| [not supported](https://github.com/meteor/meteor/issues/9281) | 1.6.0 <1.6.1 | ✘ | ✘ |
| 2.x | >=1.6.1 and < 1.8| ✘ | ✔ |
| 3.x | >=1.8| ✘ | ✔ |
**Table of Contents**
- [Installation](#installation)
- [Specific setup for Meteor apps](#specific-setup-for-meteor-apps)
- [Specific setup for Meteor package](#specific-setup-for-meteor-package)
- [Specific setup for Typescript](#specific-setup-for-Typescript)
- [Advanced setup for CI](#advanced-setup-for-ci)
- [Coveralls](#coveralls)
- [Codecov](#codecov)
- [Global environment variable](#global-environment-variable)
- [Config file](#config-file)
- [My files are missing from my app coverage report](#my-files-are-missing-from-my-app-coverage-report)
- [Meteor ignored folders and files](#meteor-ignored-folders-and-files)
- [How to use another test runner](#how-to-use-another-test-runner)
- [I want my reports referred to my original source files](#i-want-my-reports-referred-to-my-original-source-files)
- [Client API](#client-api)
- [Meteor.sendCoverage(callback)](#meteorsendcoveragecallback)
- [Meteor.exportCoverage(type, callback)](#meteorexportcoveragetype-callback)
- [Meteor.importCoverage(callback)](#meteorimportcoveragecallback)
- [Contributing](#contributing)
- [Credits](#credits)
## Installation
### Specific setup for Meteor apps
Ensure you use at least Meteor version `v1.8`. If you are using Typescript, jump [here](#specific-setup-for-Typescript)
Then, run the following :
```txt
meteor add lmieulet:meteor-coverage meteortesting:mocha
meteor npm init # If the package.json file does not exist
meteor npm install --save-dev babel-plugin-istanbul
```
In order to instrument your code, you need to add the [`babel-plugin-istanbul`](https://github.com/istanbuljs/babel-plugin-istanbul) to your babel config. If you don't have a babel config file, edit your package.json file, or use [any other babel configuration file (see .babelrc.js)](https://babeljs.io/docs/en/config-files).
```json
{
"name": "my-package",
"version": "1.0.0",
"babel": {
"env": {
"COVERAGE": {
"plugins": [
"istanbul"
]
}
}
}
}
```
You must wrap the istanbul plugin with the `env` setting to disable the file-instrumentation of your project when you are not running the test coverage script. Just keep in mind that if you follow the here under script, babel will use the `istanbul` package only when `BABEL_ENV=COVERAGE`.
Now, to run the coverage process, just add these new scripts inside your `package.json` in the root folder of your app:
```json
"scripts": {
"coverage:unit": "BABEL_ENV=COVERAGE TEST_BROWSER_DRIVER=puppeteer COVERAGE=1 COVERAGE_OUT_HTML=1 COVERAGE_APP_FOLDER=$PWD/ meteor test --once --driver-package meteortesting:mocha",
"coverage:watch": "BABEL_ENV=COVERAGE COVERAGE=1 COVERAGE_VERBOSE=1 COVERAGE_APP_FOLDER=$PWD/ TEST_WATCH=1 meteor test --driver-package meteortesting:mocha"
}
```
You can find more options on the [meteortesting readme](https://github.com/meteortesting/meteor-mocha#run-with-code-coverage). Let's try the watch mode :
meteor npm run test:watch:coverage
Now open your [browser test page localhost:3000/](http://localhost:3000/) and the page [localhost:3000/coverage](http://localhost:3000/coverage). You can notice the client coverage is completly missing but server one is there. A missing feature would be to save your client coverage with a widget. Instead, you need to enter this javascript in your browser console (in the page where tests are executed):
Meteor.sendCoverage(function(stats,nbErr) {console.log(stats,nbErr);});
# Reopen localhost:3000/coverage to see that client coverage have been saved on server
# Creates an html export inside coverage_app_folder/output_folder/index.html
Meteor.exportCoverage("html", function(err) {console.log(err)})
Refresh the [localhost:3000/coverage](http://localhost:3000/coverage) in your browser to see there is client coverage now.
### Specific setup for Meteor package
In a meteor package, you need to add inside the `package.js` file:
```js
[...]
Package.onTest(function (api) {
api.use(['lmieulet:[email protected]', 'lmieulet:[email protected]','meteortesting:mocha']);
[...]
});
```
Creating a Meteor package in 2018 is a nightmare, so please stay calm when you discover the following `package.json` that prevents so many issues :
```
"scripts": {
"setup-test": "rm -rf ./someapp && meteor create --bare someapp && cd someapp && cp ../.coverage.json . && meteor npm i --save puppeteer && mkdir packages && ln -s ../../ ./packages/meteor-coverage",
"test": "meteor npm run setup-test && cd someapp && TEST_BROWSER_DRIVER=puppeteer COVERAGE_VERBOSE=1 COVERAGE=1 COVERAGE_OUT_LCOVONLY=1 COVERAGE_APP_FOLDER=$(pwd)/ meteor test-packages --once --driver-package meteortesting:mocha ./packages/meteor-coverage",
"test:watch": "cd someapp && TEST_WATCH=1 COVERAGE=1 COVERAGE_APP_FOLDER=$(pwd)/ meteor test-packages --driver-package meteortesting:mocha ./packages/meteor-coverage"
}
```
The task `setup-test` is the cutting edge workaround that creates an empty meteor app that will run your test later.
### Specific setup for Typescript
If you use Typescript, you cannot use babel to instrument your code, you need to rely on `lmieulet:meteor-legacy-coverage` (like packages).
The installation is almost the same as normal Meteor application, but you don't need to install all the babel stuff, you just need to run the following :
```txt
meteor add lmieulet:meteor-legacy-coverage
```
You can look at the [deskoh/Meteor-React-Typescript-Starter](https://github.com/deskoh/Meteor-React-Typescript-Starter) if you need to see a working exemple.
## Advanced setup for CI
### Coveralls
Install
meteor npm i --save-dev coveralls
Add this after tests execution:
# Send coverage report
cat .coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js || true # ignore coveralls error
### Codecov
Install
meteor npm i --save-dev codecov.io
Add this after tests execution:
cat .coverage/lcov.info | ./node_modules/codecov.io/bin/codecov.io.js || true # ignore codecov error
## Global environment variable
**Deprecated**
You can provides settings by setting these environment variables:
- `COVERAGE=1` to enable coverage
- `COVERAGE_APP_FOLDER=/path/to/your/meteor/app/`
- Used to see if you have a customized `.coverage.json` file
- Used by istanbul in reports if the file has source map
- Needs to end with a trailing slash
- Used when importing or exporting coverage reports
- `COVERAGE_VERBOSE=1` to see logs (optional)
## Config file
If you have packages used by your project (ex: aldeed:simple-schema) or libraries on your client side (ex: OpenLayers, Jquery), you can hide the coverage of these files from reports. You can specify which files will not be covered in a `.coverage.json` file inside the `COVERAGE_APP_FOLDER` folder.
If you do not have this file, this package will use the default one (`conf/default-coverage.json`). If you do not define a key in the `.coverage.json` file, the default one will be used.
Exemple:
```json{
"--": "Meteor app does not require any specific configuration",
"--": "If you want to instrument a package, you need to add the following",
"remapFormat": ["html", "cobertura", "clover", "json", "json-summary", "lcovonly", "teamcity", "text", "text-summary"],
"output": "./.coverage"
}
```
Details :
- The glob syntax can be found [here](http://www.linuxjournal.com/content/bash-extended-globbing).
- To create your custom config file, run the project with `COVERAGE_VERBOSE=1` env variable and use logs to see which filenames were hooked or hidden. PR welcome.
- The output folder needs to starts with a dot to exclude that folder from Meteor build.
## My files are missing from my app coverage report
If you have **internal packages** inside your app and you want to get their **server side** coverage. Open the file `.meteor/packages` and move the line `lmieulet:meteor-coverage` to be above these packages.
## Meteor ignored folders and files
- hidden folders like .npm, .coverage or .meteor.
- special folders like node_modules.
- all meteor packages (bundled and/or manually installed ones) like meteor/underscore, meteor/accounts-password or aldeed:simple-schema.
- all tests file(s) containing `spec?|test?|specs?|tests?|app-specs?|app-tests?` and all folder(s) named `specs?|tests?|app-specs?|app-tests?`
## How to use another test runner
You can find [here](https://github.com/practicalmeteor/spacejam/compare/windows-suppport...serut:windows-suppport-rc4?diff=split&name=windows-suppport-rc4#diff-f388d8f4ed9765929079f40166396fdeR65) the diff between "spacejam without coverage" and "spacejam coverage", so you can build something else, with grunt for example, that exports your test. meteortesting:mocha did also the same.
## I want my reports referred to my original source files
If you are using a language that compiles to JavaScript (there are [lots of them](https://github.com/jashkenas/coffeescript/wiki/list-of-languages-that-compile-to-js)), you may want to see your coverage reports referred to the original source files (prior to compilation).
To remap your source files, you have to provide the report type `out_remap` explicitly when using `spacejam`: `spacejam-mocha --coverage out_remap`
You'll get your remapped coverage reports at `./.coverage/.remap` (or `custom_output/.remap` if you're customized the output folder through the file `.coverage.json`).
The coverage is remapped to **all the available reports** (listed in the following example) by default. If you only want some of them, you need to request them explicitly through the key `remap.format` in `.coverage.json` like this:
```json
{
"remap": {
"format": ["html", "clover", "cobertura", "json", "json-summary", "lcovonly", "teamcity", "text", "text-summary"]
}
}
```
If you want to remap the coverage with `Meteor.exportCoverage()`, then you must use the report type `remap`.
This feature has only been tested with TypeScript, but it should work for any language compiled to JavaScript, just **make sure you generate source maps (\*.js.map) for all the compiled files and that source maps are located next to their respective compiled JavaScript file (\*.js)**, just like this:
COVERAGE_APP_FOLDER
├── tsconfig.json
├── src
| ├── my-file.ts
| └── my-file.d.ts
├── build
| ├── my-file.js
| └── my-file.js.map
* * *
## Client API
#### Meteor.sendCoverage(callback)
Run the following command in your browser and the client coverage will be saved into the server coverage report.
```js
Meteor.sendCoverage(function(stats,nbErr) {console.log(stats,nbErr);});
```
Why? When a browser opens the client side of your application, this package intercepts all queries matching `*.js` to respond the instrumented version of the original script, if they are not ignored by the configuration file. All these instrumented scripts are autonomous and they save the coverage in a global variable when you execute a line of a file. This global variable needs to be sent back to the server to create a full coverage report.
#### Meteor.exportCoverage(type, callback)
- type: the type of report you want to create inside your `COVERAGE_APP_FOLDER`
- Default: `coverage`, used to dump the coverage object in a file because when there are several types of test, we want to merge results, and the server reloads between each one.
- Allowed values: `coverage`, `html`, `json`, `json-summary`, `lcovonly`, `remap`, `text-summary`
- **Not working values:** `clover`, `cobertura`, `lcov`, `teamcity`, `text`, `text-lcov`, PR welcome
- Except for `coverage`, the file generation is handled by [istanbuljs/istanbul-reports](https://github.com/istanbuljs/istanbul-reports)
```js
Meteor.exportCoverage(null, function(err) {console.log(err)})
```
#### Meteor.importCoverage(callback)
Import a `coverage` export.
```js
Meteor.importCoverage(function(err) {console.log(err)})
```
## Contributing
Anyone is welcome to contribute.
# You should fork this repo first
git clone https://github.com/serut/meteor-coverage
# I have a preference to always execute npm action
# throw the integrated meteor npm (npm --v !== meteor npm --v)
meteor npm install
# Edit the app_folder key to match your app folder, don't forget the ending slash
nano settings.coverage.json
# Then run mocha watch tests
meteor npm run start
## Credits
This package would not exist without the amazing work of:
- [Contributors](https://github.com/serut/meteor-coverage/graphs/contributors) and testers for their help
- [Xolv.io](http://xolv.io) and their work on the original [meteor-coverage](https://github.com/xolvio/meteor-coverage) package;
- All contributors of [istanbuljs](https://github.com/istanbuljs/istanbuljs) project.
All of them were very helpful in the development of this package. Merci !