## Testing

### Node

<details>
  <summary>(click to show)</summary>

`make test` will run the node-based tests.  By default it runs tests on files in
every supported format.  To test a specific file type, set `FMTS` to the format
you want to test.  Feature-specific tests are available with `make test_misc`

```bash
$ make test_misc   # run core tests
$ make test        # run full tests
$ make test_xls    # only use the XLS test files
$ make test_xlsx   # only use the XLSX test files
$ make test_xlsb   # only use the XLSB test files
$ make test_xml    # only use the XML test files
$ make test_ods    # only use the ODS test files
```

To enable all errors, set the environment variable `WTF=1`:

```bash
$ make test        # run full tests
$ WTF=1 make test  # enable all error messages
```

`flow` and `eslint` checks are available:

```bash
$ make lint        # eslint checks
$ make flow        # make lint + Flow checking
$ make tslint      # check TS definitions
```

</details>

### Browser

<details>
  <summary>(click to show)</summary>

The core in-browser tests are available at `tests/index.html` within this repo.
Start a local server and navigate to that directory to run the tests.
`make ctestserv` will start a server on port 8000.

`make ctest` will generate the browser fixtures.  To add more files, edit the
`tests/fixtures.lst` file and add the paths.

To run the full in-browser tests, clone the repo for
[`oss.sheetjs.com`](https://github.com/SheetJS/SheetJS.github.io) and replace
the `xlsx.js` file (then open a browser window and go to `stress.html`):

```bash
$ cp xlsx.js ../SheetJS.github.io
$ cd ../SheetJS.github.io
$ simplehttpserver # or "python -mSimpleHTTPServer" or "serve"
$ open -a Chromium.app http://localhost:8000/stress.html
```
</details>

### Tested Environments

<details>
  <summary>(click to show)</summary>

 - NodeJS `0.8`, `0.10`, `0.12`, `4.x`, `5.x`, `6.x`, `7.x`, `8.x`
 - IE 6/7/8/9/10/11 (IE 6-9 require shims)
 - Chrome 24+ (including Android 4.0+)
 - Safari 6+ (iOS and Desktop)
 - Edge 13+, FF 18+, and Opera 12+

Tests utilize the mocha testing framework.

 - <https://saucelabs.com/u/sheetjs> for XLS\* modules using Sauce Labs

The test suite also includes tests for various time zones.  To change
the timezone locally, set the TZ environment variable:

```bash
$ env TZ="Asia/Kolkata" WTF=1 make test_misc
```

</details>

### Test Files

Test files are housed in [another repo](https://github.com/SheetJS/test_files).

Running `make init` will refresh the `test_files` submodule and get the files.
Note that this requires `svn`, `git`, `hg` and other commands that may not be
available.  If `make init` fails, please download the latest version of the test
files snapshot from [the repo](https://github.com/SheetJS/test_files/releases)

<details>
  <summary><b>Latest Snapshot</b> (click to show)</summary>

Latest test files snapshot:
<http://github.com/SheetJS/test_files/releases/download/20170409/test_files.zip>

(download and unzip to the `test_files` subdirectory)

</details>