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feat: implement new cli command to read tests
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DudaGod committed Aug 5, 2024
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284 changes: 214 additions & 70 deletions docs/cli.md
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<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
### Contents

- [Overview](#overview)
- [Reporters](#reporters)
- [Require modules](#require-modules)
- [`testplane` command](#testplane-command)
- [Options](#options)
- [`--reporter=<name>`](#--reportername)
- [`--require=<module>`](#--requiremodule)
- [`--inspect`](#--inspect)
- [`--repl`](#--repl)
- [switchToRepl](#switchtorepl)
- [Test development in runtime](#test-development-in-runtime)
- [How to set up using VSCode](#how-to-set-up-using-vscode)
- [How to set up using Webstorm](#how-to-set-up-using-webstorm)
- [`list-tests` command](#list-tests-command)
- [Options](#options-1)
- [`--formatter=<name>`](#--formattername)
- [Overriding settings](#overriding-settings)
- [Debug mode](#debug-mode)
- [REPL mode](#repl-mode)
- [switchToRepl](#switchtorepl)
- [Test development in runtime](#test-development-in-runtime)
- [How to set up using VSCode](#how-to-set-up-using-vscode)
- [How to set up using Webstorm](#how-to-set-up-using-webstorm)
- [Environment variables](#environment-variables)
- [TESTPLANE_SKIP_BROWSERS](#testplane_skip_browsers)
- [TESTPLANE_SETS](#testplane_sets)

<!-- END doctoc generated TOC please keep comment here to allow auto update -->

### Overview
### `testplane` command

```
testplane --help
```
Main command to run tests.

shows the following
```bash
> testplane --help

```
Usage: testplane [options] [paths...]
Usage: testplane [options] [command] [paths...]

Run tests

Options:

-V, --version output the version number
-c, --config <path> path to configuration file
-b, --browser <browser> run tests only in specified browser
-s, --set <set> run tests only in the specified set
-r, --require <module> require a module before running `testplane`
--reporter <reporter> test reporters
--grep <grep> run only tests matching the pattern
--update-refs update screenshot references or gather them if they do not exist ("assertView" command)
--inspect [inspect] nodejs inspector on [=[host:]port]
--inspect-brk [inspect-brk] nodejs inspector with break at the start
--repl [type] run one test, call `browser.switchToRepl` in test code to open repl interface (default: false)
--repl-before-test [type] open repl interface before test run (default: false)
--repl-on-fail [type] open repl interface on test fail only (default: false)
-h, --help output usage information
-V, --version output the version number
-c, --config <path> path to configuration file
-b, --browser <browser> run tests only in specified browser
-s, --set <set> run tests only in the specified set
-r, --require <module> require module
--grep <grep> run only tests matching the pattern
--reporter <name> test reporters
--update-refs update screenshot references or gather them if they do not exist ("assertView" command)
--inspect [inspect] nodejs inspector on [=[host:]port]
--inspect-brk [inspect-brk] nodejs inspector with break at the start
--repl [type] run one test, call `browser.switchToRepl` in test code to open repl interface (default: false)
--repl-before-test [type] open repl interface before test run (default: false)
--repl-on-fail [type] open repl interface on test fail only (default: false)
--devtools switches the browser to the devtools mode with using CDP protocol
-h, --help output usage information
```
For example,
```
testplane --config ./config.js --reporter flat --browser firefox --grep name
npx testplane --config ./config.js --reporter flat --browser firefox --grep name
```
**Note.** All CLI options override config values.
### Reporters
#### Options
##### `--reporter=<name>`
You can choose `flat`, `plain` or `jsonl` reporter by option `--reporter`. Default is `flat`.
Information about test results is displayed to the command line by default. But there is an ability to redirect the output to a file, for example:
Expand All @@ -74,45 +81,14 @@ Information about each report type:
* `plain` – information about fails and retries would be placed after each test;
* `jsonl` - displays detailed information about each test result in [jsonl](https://jsonlines.org/) format.
### Require modules
##### `--require=<module>`
Using `-r` or `--require` option you can load external modules, which exists in your local machine, before running `testplane`. This is useful for:
- compilers such as TypeScript via [ts-node](https://www.npmjs.com/package/ts-node) (using `--require ts-node/register`) or Babel via [@babel/register](https://www.npmjs.com/package/@babel/register) (using `--require @babel/register`);
- loaders such as ECMAScript modules via [esm](https://www.npmjs.com/package/esm).
### Overriding settings

All options can also be overridden via command-line flags or environment variables. Priorities are the following:

* A command-line option has the highest priority. It overrides the environment variable and config file value.

* An environment variable has second priority. It overrides the config file value.

* A config file value has the lowest priority.

* If there isn't a command-line option, environment variable or config file option specified, the default is used.

To override a config setting with a CLI option, convert the full option path to `--kebab-case`. For example, if you want to run tests against a different base URL, call:

```
testplane path/to/mytest.js --base-url http://example.com
```

To change the number of sessions for Firefox (assuming you have a browser with the `firefox` id in the config):

```
testplane path/to/mytest.js --browsers-firefox-sessions-per-browser 7
```

To override a setting with an environment variable, convert its full path to `snake_case` and add the `testplane_` prefix. The above examples can be rewritten to use environment variables instead of CLI options:

```
testplane_base_url=http://example.com testplane path/to/mytest.js
testplane_browsers_firefox_sessions_per_browser=7 testplane path/to/mytest.js
```

### Debug mode
##### `--inspect`
In order to understand what is going on in the test step by step, there is a debug mode. You can run tests in this mode using these options: `--inspect` and `--inspect-brk`. The difference between them is that the second one stops before executing the code.
Expand All @@ -124,15 +100,15 @@ testplane path/to/mytest.js --inspect
**Note**: In the debugging mode, only one worker is started and all tests are performed only in it.
Use this mode with option `sessionsPerBrowser=1` in order to debug tests one at a time.
### REPL mode
##### `--repl`
Testplane provides a [REPL](https://en.wikipedia.org/wiki/Read–eval–print_loop) implementation that helps you not only to learn the framework API, but also to debug and inspect your tests. In this mode, there is no timeout for the duration of the test (it means that there will be enough time to debug the test). It can be used by specifying the CLI options:
- `--repl` - in this mode, only one test in one browser should be run, otherwise an error is thrown. REPL interface does not start automatically, so you need to call [switchToRepl](#switchtorepl) command in the test code. Disabled by default;
- `--repl-before-test` - the same as `--repl` option except that REPL interface opens automatically before run test. Disabled by default;
- `--repl-on-fail` - the same as `--repl` option except that REPL interface opens automatically on test fail. Disabled by default.
#### switchToRepl
###### switchToRepl
Browser command that stops the test execution and opens REPL interface in order to communicate with browser. For example:
Expand Down Expand Up @@ -200,7 +176,7 @@ Another command features:
// foo: 1
```
#### Test development in runtime
###### Test development in runtime
For quick test development without restarting the test or the browser, you can run the test in the terminal of IDE with enabled REPL mode:
Expand All @@ -214,16 +190,184 @@ Also, during the test development process, it may be necessary to execute comman
- [clearSession](#clearsession) - clears session state (deletes cookies, clears local and session storages). In some cases, the environment may contain side effects from already executed commands;
- [reloadSession](https://webdriver.io/docs/api/browser/reloadSession/) - creates a new session with a completely clean environment.
##### How to set up using VSCode
###### How to set up using VSCode
1. Open `Code` -> `Settings...` -> `Keyboard Shortcuts` and print `run selected text` to search input. After that, you can specify the desired key combination
2. Run `testplane` in repl mode (examples were above)
3. Select one or mode lines of code and press created hotkey
##### How to set up using Webstorm
###### How to set up using Webstorm
Ability to run selected text in terminal will be available after this [issue](https://youtrack.jetbrains.com/issue/WEB-49916/Debug-JS-file-selection) will be resolved.
### `list-tests` command
Command to get list of tests in one of available formats (list or tree).
```bash
> testplane list-tests --help
Usage: list-tests [options] [paths...]
Lists all tests info in one of available formats
Options:
-c, --config <path> path to configuration file
-b, --browser <browser> list tests only in specified browser
-s, --set <set> list tests only in the specified set
-r, --require <module> require module
--grep <grep> list only tests matching the pattern
--ignore <file-path> exclude paths from tests read
--silent [type] flag to disable events emitting while reading tests (default: false)
--output-file <file-path> save results to specified file
--formatter [name] return tests in specified format (default: list)
-h, --help output usage information
```
For example,
```
npx testplane list-tests --config ./config.js --browser firefox --grep name --formatter tree
```
**Note.** All CLI options override config values.
#### Options
##### `--formatter=<name>`
Return tests in specified format. Available formatters: `list` (default) and `tree`.
Let's see how the output of the tests in the yandex and chrome browsers will differ. For example, we have the following tests:
```js
// example.hermione.js
it('test1', () => {});
describe('suite1', () => {
it('test2', () => {});
});
```
When using the `list` formatter (`npx testplane list-tests --formatter=list`), we get the following output:
```json
[
{
"id": "5a105e8",
"titlePath": [
"test1"
],
"browserIds": [
"yandex",
"chrome"
],
"file": "tests/second.hermione.js"
},
{
"id": "d2b3179",
"titlePath": [
"suite",
"test2"
],
"browserIds": [
"yandex",
"chrome"
],
"file": "tests/second.hermione.js"
}
]
```
Here, we got plain list of unique tests, where:
- `id` (`String`) - unique identifier of the test;
- `titlePath` (`String[]`) - full name of the test. Each element of the array is the title of a suite or test. To get the full title, you need just join `titlePath` with single whitespace;
- `browserIds` (`String[]`) - list of browsers in which the test will be launched;
- `file` (`String`) - path to the file relative to the working directory.
When using the `tree` formatter (`npx testplane list-tests --formatter=tree`), we get the following output:
```json
[
{
"id": "36749990",
"title": "suite",
"line": 3,
"column": 1,
"file": "example.hermione.js",
"suites": [],
"tests": [
{
"id": "d2b3179",
"title": "test2",
"line": 4,
"column": 5,
"browserIds": [
"yandex"
]
}
]
},
{
"id": "5a105e8",
"title": "test1",
"line": 1,
"column": 1,
"browserIds": [
"yandex"
],
"file": "example.hermione.js"
}
]
```
Here, we got list of unique tests in the form of a tree structure (with parent suites), where `Suite` has following options:
- `id` (`String`) - unique identifier of the suite;
- `title` (`String`) - unique identifier of the suite;
- `line` (`Number`) - line on which the suite was called;
- `column` (`Number`) - column on which the suite was called;
- `file` (`String`, only in topmost suite) - path to the file relative to the working directory;
- `suites` (`Suite[]`, exists only in suite) - list of child suites;
- `tests` (`Test[]`) - list of tests;
And `Test` has following options:
- `id` (`String`) - unique identifier of the test;
- `title` (`String`) - unique identifier of the test;
- `line` (`Number`) - line on which the test was called;
- `column` (`Number`) - column on which the test was called;
- `browserIds` (`String[]`) - list of browsers in which the test will be launched;
- `file` (`String`, only in tests without parent suites) - path to the file relative to the working directory.
### Overriding settings
All options can also be overridden via command-line flags or environment variables. Priorities are the following:
* A command-line option has the highest priority. It overrides the environment variable and config file value.
* An environment variable has second priority. It overrides the config file value.
* A config file value has the lowest priority.
* If there isn't a command-line option, environment variable or config file option specified, the default is used.
To override a config setting with a CLI option, convert the full option path to `--kebab-case`. For example, if you want to run tests against a different base URL, call:
```
testplane path/to/mytest.js --base-url http://example.com
```
To change the number of sessions for Firefox (assuming you have a browser with the `firefox` id in the config):
```
testplane path/to/mytest.js --browsers-firefox-sessions-per-browser 7
```
To override a setting with an environment variable, convert its full path to `snake_case` and add the `testplane_` prefix. The above examples can be rewritten to use environment variables instead of CLI options:
```
testplane_base_url=http://example.com testplane path/to/mytest.js
testplane_browsers_firefox_sessions_per_browser=7 testplane path/to/mytest.js
```
### Environment variables
#### TESTPLANE_SKIP_BROWSERS
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<!-- START doctoc generated TOC please keep comment here to allow auto update -->
<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
### Contents

- [Testplane Component Testing (experimental)](#testplane-component-testing-experimental)
- [Implementation options for component testing](#implementation-options-for-component-testing)
- [How to use it?](#how-to-use-it)
- [What additional features are supported?](#what-additional-features-are-supported)
- [Hot Module Replacement (HMR)](#hot-module-replacement-hmr)
- [Using the browser and expect instances directly in the browser DevTools](#using-the-browser-and-expect-instances-directly-in-the-browser-devtools)
- [Logs from the browser console in the terminal](#logs-from-the-browser-console-in-the-terminal)

<!-- END doctoc generated TOC please keep comment here to allow auto update -->

## Testplane Component Testing (experimental)

Almost every modern web interfaces
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- [List of useful plugins](#list-of-useful-plugins)
- [prepareBrowser](#preparebrowser)
- [prepareEnvironment](#prepareenvironment)
<<<<<<< HEAD
- [lastFailed](#lastfailed)
=======
- [devServer](#devserver)
>>>>>>> a9b9a9ec (feat: implement new cli command to read tests)
<!-- END doctoc generated TOC please keep comment here to allow auto update -->

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