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cherry-pick: ToT docs #16413

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115 changes: 115 additions & 0 deletions docs/src/ci-intro-js.md
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---
id: ci-intro
title: "CI Github Actions"
---

When installing Playwright you are given the option to add a [GitHub Actions](https://docs.github.com/en/actions). This creates a `playwright.yml` file inside a `.github/workflows` folder containing everything you need so that your tests run on each push and pull request into the main/master branch.

**What you will learn:**

- [How to use GitHub Actions to run your tests](#github-actions)
- [How to create a repo and push to GitHub](#create-a-repo-and-push-to-github)
- [How to open the workflows](#opening-the-workflows)
- [How to view the test logs](#viewing-test-logs)
- [How to download the report from GitHub](#downloading-the-playwright-report)
- [How to view the report](#viewing-the-playwright-report)
- [How to view the trace](#viewing-the-trace)

## GitHub Actions

Tests will run on push or pull request on branches main/master. The [workflow](https://docs.github.com/en/actions/using-workflows/about-workflows) will install all dependencies, install Playwright and then run the tests. It will also create the HTML report.

```yaml
name: Playwright Tests
on:
push:
branches: [main, master]
pull_request:
branches: [main, master]
jobs:
test:
timeout-minutes: 60
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2
with:
node-version: "14.x"
- name: Install dependencies
run: npm ci
- name: Install Playwright Browsers
run: npx playwright install --with-deps
- name: Run Playwright tests
run: npx playwright test
- uses: actions/upload-artifact@v2
if: always()
with:
name: playwright-report
path: playwright-report/
retention-days: 30
```

### Create a Repo and Push to GitHub

[Create a repo on GitHub](https://docs.github.com/en/get-started/quickstart/create-a-repo) and create a new repository or push an existing repository. Follow the instructions on GitHub and don't forget to [initialize a git repository](https://github.com/git-guides/git-init) using the `git init` command so you can [add](https://github.com/git-guides/git-add), [commit](https://github.com/git-guides/git-commit) and [push](https://github.com/git-guides/git-push) your code.

<img width="861" alt="Create a Repo and Push to GitHub" src="https://user-images.githubusercontent.com/13063165/183423254-d2735278-a2ab-4d63-bb99-48d8e5e447bc.png"/>

### Opening the Workflows

Click on the **Actions** tab to see the workflows. Here you will see if your tests have passed or failed.

<img width="847" alt="Opening the Workflows" src="https://user-images.githubusercontent.com/13063165/183423584-2ea18038-cd49-4daa-a20c-2205352f0933.png"/>

On Pull Requests you can also click on the **Details** link in the [PR status check](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/about-status-checks).

<img width="645" alt="pr status checked" src="https://user-images.githubusercontent.com/13063165/183722462-17a985db-0e10-4205-b16c-8aaac36117b9.png" />

### Viewing Test Logs

Clicking on the workflow run will show you the all the actions that GitHub performed and clicking on **Run Playwright tests** will show the error messages, what was expected and what was received as well as the call log.

<img width="839" alt="Viewing Test Logs" src="https://user-images.githubusercontent.com/13063165/183423783-58bf2008-514e-4f96-9c12-c9a55703960c.png"/>



## HTML Report

The HTML Report shows you a full report of your tests. You can filter the report by browsers, passed tests, failed tests, skipped tests and flaky tests.

### Downloading the HTML Report

In the Artifacts section click on the **playwright-report** to download your report in the format of a zip file.

<img width="972" alt="Downloading the HTML Report" src="https://user-images.githubusercontent.com/13063165/183437023-524f1803-84e4-4862-9ce3-1d55af0e023e.png" />

### Viewing the HTML Report

Locally opening the report will not work as expected as you need a web server in order for everything to work correctly. First, extract the zip, preferably in a folder that already has Playwright installed. Using the command line change into the directory where the report is and use `npx playwright show-report` followed by the name of the extracted folder. This will serve up the report and enable you to view it in your browser.


```bash
npx playwright show-report name-of-my-extracted-playwright-report
```

<img width="752" alt="Viewing the HTML Report" src="https://user-images.githubusercontent.com/13063165/183437645-b47dd175-2e07-4ecc-a469-27d5b150b7ed.png" />

To learn more about reports check out our detailed guide on [HTML Reporter](/test-reporters.md#html-reporter)

### Viewing the Trace

Once you have served the report using `npx playwright show-report`, click on the trace icon next to the test's file name as seen in the image above. You can then view the trace of your tests and inspect each action to try to find out why the tests are failing.


<img width="1907" alt="Viewing the Trace" src="https://user-images.githubusercontent.com/13063165/183879653-d442e6b4-14f5-4d0e-99f3-9ba19f82c7cf.png"/>

To learn more about traces check out our detailed guide on [Trace Viewer](/trace-viewer.md).

To learn more about running tests on CI check out our detailed guide on [Continuous Integration](/ci.md).


## What's Next

- [Learn how to use Web First Assertions](/test-assertions.md)
- [Learn how to use Selectors](/selectors.md)
- [Learn how to use Locators](/locators.md)
2 changes: 1 addition & 1 deletion docs/src/codegen.md
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Expand Up @@ -288,4 +288,4 @@ await page.PauseAsync();

## What's Next

- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
2 changes: 1 addition & 1 deletion docs/src/getting-started-vscode-js.md
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Expand Up @@ -93,4 +93,4 @@ As you interact with the page Codegen will generate the test for you in the newl

- [Write tests using web first assertions, page fixtures and locators](./writing-tests.md)
- [See test reports](./running-tests.md#test-reports)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
16 changes: 0 additions & 16 deletions docs/src/html-reporter-js.md

This file was deleted.

2 changes: 1 addition & 1 deletion docs/src/intro-csharp.md
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Expand Up @@ -194,5 +194,5 @@ See our doc on [Test Runners](./test-runners.md) to learn more about running tes
- [Run single tests, multiple tests, headed mode](./running-tests.md)
- [Learn more about the NUnit and MSTest base classes](./test-runners.md)
- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
- [Using Playwright as library](./library.md)
4 changes: 2 additions & 2 deletions docs/src/intro-js.md
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Expand Up @@ -82,7 +82,7 @@ See our doc on [Running Tests](./running-tests.md) to learn more about running t

## HTML Test Reports

Once your test has finished running a [HTML Reporter](./html-reporter.md) will have been created which shows you a full report of your tests allowing you to filter the report by browsers, passed tests, failed tests, skipped tests and flaky tests. You can click on each test and explore the test's errors as well as each step of the test. By default, the HTML report is opened automatically if some of the tests failed.
Once your test has finished running a [HTML Reporter](./test-reporters.md#html-reporter) will have been created which shows you a full report of your tests allowing you to filter the report by browsers, passed tests, failed tests, skipped tests and flaky tests. You can click on each test and explore the test's errors as well as each step of the test. By default, the HTML report is opened automatically if some of the tests failed.

```bash
npx playwright show-report
Expand All @@ -96,4 +96,4 @@ npx playwright show-report
- [Write tests using web first assertions, page fixtures and locators](./writing-tests.md)
- [Run single tests, multiple tests, headed mode](./running-tests.md)
- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
2 changes: 1 addition & 1 deletion docs/src/intro-python.md
Original file line number Diff line number Diff line change
Expand Up @@ -64,4 +64,4 @@ See our doc on [Running Tests](./running-tests.md) to learn more about running t
- [Write tests using web first assertions, page fixtures and locators](./writing-tests.md)
- [Run single tests, multiple tests, headed mode](./running-tests.md)
- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
2 changes: 1 addition & 1 deletion docs/src/running-tests-csharp.md
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Expand Up @@ -93,4 +93,4 @@ Check out our [debugging guide](./debug.md) to learn more about the [Playwright
## What's Next

- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
4 changes: 2 additions & 2 deletions docs/src/running-tests-js.md
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Expand Up @@ -90,7 +90,7 @@ Check out our [debugging guide](./debug.md) to learn more about the [Playwright

## Test Reports

The [HTML Reporter](./html-reporter.md) shows you a full report of your tests allowing you to filter the report by browsers, passed tests, failed tests, skipped tests and flaky tests. By default, the HTML report is opened automatically if some of the tests failed.
The [HTML Reporter](././test-reporters.md#html-reporter) shows you a full report of your tests allowing you to filter the report by browsers, passed tests, failed tests, skipped tests and flaky tests. By default, the HTML report is opened automatically if some of the tests failed.

```bash
npx playwright show-report
Expand All @@ -105,4 +105,4 @@ You can click on each test and explore the tests errors as well as each step of
## What's Next

- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
2 changes: 1 addition & 1 deletion docs/src/running-tests-python.md
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Expand Up @@ -83,4 +83,4 @@ Check out our [debugging guide](./debug.md) to learn more about the [Playwright
## What's Next

- [Generate tests with Codegen](./codegen.md)
- [See a trace of your tests](./trace-viewer.md)
- [See a trace of your tests](./trace-viewer-intro.md)
120 changes: 120 additions & 0 deletions docs/src/trace-viewer-intro-csharp-java-python.md
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---
id: trace-viewer-intro
title: "Trace Viewer"
---

Playwright Trace Viewer is a GUI tool that lets you explore recorded Playwright traces of your tests meaning you can go back and forward though each action of your test and visually see what was happening during each action.

**You will learn**

- How to record a trace
- How to open the HTML report
- How to open the trace viewer

## Recording a trace

Traces can be recorded using the [`property: BrowserContext.tracing`] API as follows:

```java
Browser browser = browserType.launch();
BrowserContext context = browser.newContext();

// Start tracing before creating / navigating a page.
context.tracing().start(new Tracing.StartOptions()
.setScreenshots(true)
.setSnapshots(true)
.setSources(true));

Page page = context.newPage();
page.navigate("https://playwright.dev");

// Stop tracing and export it into a zip archive.
context.tracing().stop(new Tracing.StopOptions()
.setPath(Paths.get("trace.zip")));
```

```python async
browser = await chromium.launch()
context = await browser.new_context()

# Start tracing before creating / navigating a page.
await context.tracing.start(screenshots=True, snapshots=True, sources=True)

await page.goto("https://playwright.dev")

# Stop tracing and export it into a zip archive.
await context.tracing.stop(path = "trace.zip")
```

```python sync
browser = chromium.launch()
context = browser.new_context()

# Start tracing before creating / navigating a page.
context.tracing.start(screenshots=True, snapshots=True, sources=True)

page.goto("https://playwright.dev")

# Stop tracing and export it into a zip archive.
context.tracing.stop(path = "trace.zip")
```

```csharp
await using var browser = playwright.Chromium.LaunchAsync();
await using var context = await browser.NewContextAsync();

// Start tracing before creating / navigating a page.
await context.Tracing.StartAsync(new()
{
Screenshots = true,
Snapshots = true,
Sources = true
});

var page = context.NewPageAsync();
await page.GotoAsync("https://playwright.dev");

// Stop tracing and export it into a zip archive.
await context.Tracing.StopAsync(new()
{
Path = "trace.zip"
});
```

This will record the trace and place it into the file named `trace.zip`.


## Opening the trace

You can open the saved trace using Playwright CLI or in your browser on [`trace.playwright.dev`](https://trace.playwright.dev).

```bash js
npx playwright show-trace trace.zip
```

```bash java
mvn exec:java -e -Dexec.mainClass=com.microsoft.playwright.CLI -Dexec.args="show-trace trace.zip"
```

```bash python
playwright show-trace trace.zip
```

```bash csharp
pwsh bin\Debug\netX\playwright.ps1 show-trace trace.zip
```


## Viewing the trace

View traces of your test by clicking through each action or hovering using the timeline and see the state of the page before and after the action. Inspect the log, source and network during each step of the test. The trace viewer creates a DOM snapshot so you can fully interact with it, open devtools etc.



<img width="941" alt="image" src="https://user-images.githubusercontent.com/13063165/182618490-3340cfbf-7ac9-46e2-8157-6a8ce52dca28.png" />



To learn more check out our detailed guide on [Trace Viewer](/trace-viewer.md).


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