5.3.0 • Published 10 months ago
@visual-regression-tracker/agent-playwright v5.3.0
Native integration for Playwright with Visual Regression Tracker
Npm
https://www.npmjs.com/package/@visual-regression-tracker/agent-playwright
Install
npm install @visual-regression-tracker/agent-playwright
Usage
Import
import {
PlaywrightVisualRegressionTracker,
Config,
} from "@visual-regression-tracker/agent-playwright";
import { chromium, Browser, Page, BrowserContext } from "@playwright/test";
Configure connection
Explicit config from code
const config: Config = {
// URL where backend is running
// Required
apiUrl: "http://localhost:4200",
// Project name or ID
// Required
project: "Default project",
// User apiKey
// Required
apiKey: "tXZVHX0EA4YQM1MGDD",
// Current git branch
// Required
branchName: "develop",
// Log errors instead of throwing exceptions
// Optional - default false
enableSoftAssert: true,
// Unique ID related to one CI build
// Optional - default null
ciBuildId: "SOME_UNIQUE_ID",
};
const browserName = chromium.name();
const vrt = new PlaywrightVisualRegressionTracker(browserName, config);
Or, as JSON config file vrt.json
Used only if not explicit config provided Is overriden if ENV variables are present
{
"apiUrl": "http://localhost:4200",
"project": "Default project",
"apiKey": "tXZVHX0EA4YQM1MGDD",
"ciBuildId": "commit_sha",
"branchName": "develop",
"enableSoftAssert": false
}
Or, as environment variables
Used only if not explicit config provided
VRT_APIURL="http://localhost:4200"
VRT_PROJECT="Default project"
VRT_APIKEY="tXZVHX0EA4YQM1MGDD"
VRT_CIBUILDID="commit_sha"
VRT_BRANCHNAME="develop"
VRT_ENABLESOFTASSERT=true
Setup
vrt.start();
Teardown
vrt.stop();
Navigate to needed page
// set up Playwright
const browser = await browserType.launch({ headless: false });
const context = await browser.newContext();
const page = await context.newPage();
// navigate to url
await page.goto("https://google.com/");
Track page
await vrt.trackPage(page, imageName[, options])
page
[Page](https://playwright.dev/#version=v1.0.2&path=docs%2Fapi.md&q=class-page) Playwright pageimageName
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) name for the taken screenshot imageoptions
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) optional configuration with:diffTollerancePercent
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) specify acceptable difference from baseline, between0-100
.
comment
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) comment for test run
x
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) X-coordinate relative of left upper corner
y
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) Y-coordinate relative of left upper corner
height
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) area height in px
screenshotOptions
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) configuration for Playwrightsscreenshot
method
fullPage
[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type) When true, takes a screenshot of the full scrollable page, instead of the currently visibvle viewport. Defaults tofalse
.
omitBackground
[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type) Hides default white background and allows capturing screenshots with transparency. Defaults tofalse
.
clip
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) An object which specifies clipping of the resulting image. Should have the following fields:
x
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) x-coordinate of top-left corner of clip area
y
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) y-coordinate of top-left corner of clip area
width
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) width of clipping area
height
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) height of clipping area
timeout
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout.
agent
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) Additional information to mark baseline across agents that have different:
os
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) operating system name, like Windows, Mac, etc.
device
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) device name, PC identifier, mobile identifier etc.
viewport
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) viewport size.
retryCount
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) Maximum time to retry screenshot if case of diff
Track elementHandle
await vrt.trackElementHandle(elementHandle, imageName[, options])
elementHandle
[ElementHandle](https://playwright.dev/docs/api/class-elementhandle)|[Locator](https://playwright.dev/docs/api/class-locator) Playwright ElementHandle or LocatorimageName
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) name for the taken screenshot imageoptions
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) optional configuration with:diffTollerancePercent
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) specify acceptable difference from baseline, between0-100
.
comment
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) comment for test run
x
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) X-coordinate relative of left upper corner
y
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) Y-coordinate relative of left upper corner
height
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) area height in px
screenshotOptions
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) configuration for Playwrightsscreenshot
method
omitBackground
[boolean](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type) Hides default white background and allows capturing screenshots with transparency. Defaults tofalse
.
timeout
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) Maximum time in milliseconds, defaults to 30 seconds, pass 0 to disable timeout.
agent
[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object) Additional information to mark baseline across agents that have different:
os
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) operating system name, like Windows, Mac, etc.
device
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) device name, PC identifier, mobile identifier etc.
viewport
[string](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type) viewport size.
retryCount
[number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type) Maximum time to retry screenshot if case of diff
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