jest-html-reporter

jest-html-reporter

A Jest test results processor for generating a summary in HTML.
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Inspired by karma-htmlfile-reporter

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Installation

npm install jest-html-reporter --save-dev

Usage

Configure Jest to process the test results by adding the following entry to the Jest config (jest.config.js):

{
	"testResultsProcessor": "./node_modules/jest-html-reporter"
}

Then when you run Jest from within the terminal, a file called test-report.html will be created within your root folder containing information about your tests.

Alternative usage with package.json

Although jest.config.js is specifically created for configuring Jest (and not this plugin), it is possible to configure Jest from within package.json by adding the following as a new line:

"jest": {"testResultsProcessor": "./node_modules/jest-html-reporter" }

Run as a Custom Reporter

It is also possible to run jest-html-reporter as a custom reporter within Jest. This allows the plugin to be run in parallel with Jest instead of after a test run, and will guarantee that the test report is generated even if Jest is run with options such as --forceExit.

Add the following entry to the Jest config (jest.config.js):

"reporters": ["default", "./node_modules/jest-html-reporter"]

Please note that you need to add the "executionMode": "reporter" configuration within jesthtmlreporter.config.json in order for this to work (more information on configuration can be found within the documentation).

Node Compatibility

This plugin is compatible with Node version ^4.8.3

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Configuration

To configure this plugin, create a file named jesthtmlreporter.config.json in the root folder of the project. Please note that all configuration properties are optional.

Property	Type	Description	Default
pageTitle	STRING	The title of the document. This string will also be outputted on the top of the page.	"Test Suite"
outputPath	STRING	The path to where the plugin will output the HTML report. The path must include the filename and end with .html	"./test-report.html"
includeFailureMsg	BOOLEAN	If this setting is set to true, this will output the detailed failure message for each failed test.	false
styleOverridePath	STRING	The path to a file containing CSS styles that should override the default styling.*	null
customScriptPath	STRING	Path to a javascript file that should be injected into the test report	null
theme	STRING	The name of the reporter themes to use when rendering the report. You can find the available themes in the Documentation	"defaultTheme"
logo	STRING	Path to a logo that will be included in the header of the report	null
executionTimeWarningThreshold	NUMBER	The threshold for test execution time (in seconds) in each test suite that will render a warning on the report page. 5 seconds is the default timeout in Jest.	5
dateFormat	STRING	The format in which date/time should be formatted in the test report. Have a look in the Documentation for the available date format variables.	"yyyy-mm-dd HH:MM:ss"
sort	STRING	Sorts the test results using the given method. Available sorting methods can be found in the Documentation.	"default"
executionMode	STRING	Defines the execution mode. Avaiable modes are: reporter, testResultsProcessor	"testResultsProcessor"

*A note on styleOverridePath

The plugin will search for the file from the root directory, therefore there is no need to prepend the string with ./ or ../. Please have a look at the default styling (located within style/defaultTheme.css) for a reference of the elements available for styling.

Example Configuration

{
	"pageTitle": "Your test suite",
	"outputPath": "test-report/index.html",
	"includeFailureMsg": true,
	"styleOverridePath": "src/teststyle.css"
}

Alternative configuration with package.json

Add an entry named "jest-html-reporter" to your package.json

{
	...
	"jest-html-reporter": {
		"pageTitle": "Your test suite",
		"outputPath": "test-report.html",
		"includeFailureMsg": true
	}
}

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Continuous Integration

Configuration may also be performed with environment variables for dynamic file saving paths in different environments. NOTE: Environment variables will take precedence over configurations set in jesthtmlreporter.config.json and package.json

Example

Here is an example of dynamically naming your output file and test report title to match your current branch that one might see in a automated deployment pipeline before running their tests.

export BRANCH_NAME=`git symbolic-ref HEAD 2>/dev/null | cut -d"/" -f 3`
export JEST_HTML_REPORTER_OUTPUT_PATH=/home/username/jest-test-output/test-reports/"$BRANCH_NAME".html
export JEST_HTML_REPORTER_PAGE_TITLE="$BRANCH_NAME"\ Test\ Report

Configuration Environment Variables

The environment variables reflect the properties set in the JSON configuration file. Please read the documentation for more information on these variables.