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# jest-junit
A Jest reporter that creates compatible junit xml files
Note: as of jest-junit 11.0.0 NodeJS >= 10.12.0 is required.
## Installation
```shell
yarn add --dev jest-junit
```
## Usage
In your jest config add the following entry:
```JSON
{
"reporters": [ "default", "jest-junit" ]
}
```
Then simply run:
```shell
jest
```
For your Continuous Integration you can simply do:
```shell
jest --ci --reporters=default --reporters=jest-junit
```
## Usage as testResultsProcessor (deprecated)
The support for `testResultsProcessor` is only kept for [legacy reasons][test-results-processor] and might be removed in the future.
You should therefore prefer to configure `jest-junit` as a _reporter_.
Should you still want to, add the following entry to your jest config:
```JSON
{
"testResultsProcessor": "jest-junit"
}
```
Then simply run:
```shell
jest
```
For your Continuous Integration you can simply do:
```shell
jest --ci --testResultsProcessor="jest-junit"
```
## Configuration
`jest-junit` offers several configurations based on environment variables or a `jest-junit` key defined in `package.json` or a reporter option.
Environment variable and package.json configuration should be **strings**.
Reporter options should also be strings exception for suiteNameTemplate, classNameTemplate, titleNameTemplate that can also accept a function returning a string.
| Environment Variable Name | Reporter Config Name| Description | Default | Possible Injection Values
|---|---|---|---|---|
| `JEST_SUITE_NAME` | `suiteName` | `name` attribute of `<testsuites>` | `"jest tests"` | N/A
| `JEST_JUNIT_OUTPUT_DIR` | `outputDirectory` | Directory to save the output. Relative path outside of project root (e.g. in monorepos) has to be prefixed with `<rootDir>` literal, e.g. `<rootDir>/../coverage` | `process.cwd()` | N/A
| `JEST_JUNIT_OUTPUT_NAME` | `outputName` | File name for the output. | `"junit.xml"` | N/A
| `JEST_JUNIT_OUTPUT_FILE` | `outputFile` | Fullpath for the output. If defined, `outputDirectory` and `outputName` will be overridden | `undefined` | N/A
| `JEST_JUNIT_UNIQUE_OUTPUT_NAME` | `uniqueOutputName` | Create unique file name for the output leveraging the `outputName` as a prefix if given `${outputName}-${uuid}.xml` or a default of `junit-${uuid}.xml` if `outputName` is not specified, overrides `outputName` | `false` | N/A
| `JEST_JUNIT_SUITE_NAME` | `suiteNameTemplate` | Template string for `name` attribute of the `<testsuite>`. | `"{title}"` | `{title}`, `{filepath}`, `{filename}`, `{displayName}`
| `JEST_JUNIT_CLASSNAME` | `classNameTemplate` | Template string for the `classname` attribute of `<testcase>`. | `"{classname} {title}"` | `{classname}`, `{title}`, `{suitename}`, `{filepath}`, `{filename}`, `{displayName}`
| `JEST_JUNIT_TITLE` | `titleTemplate` | Template string for the `name` attribute of `<testcase>`. | `"{classname} {title}"` | `{classname}`, `{title}`, `{filepath}`, `{filename}`, `{displayName}`
| `JEST_JUNIT_ANCESTOR_SEPARATOR` | `ancestorSeparator` | Character(s) used to join the `describe` blocks. | `" "` | N/A
| `JEST_JUNIT_ADD_FILE_ATTRIBUTE` | `addFileAttribute` | Add file attribute to the output (validated on CIRCLE CI and GitLab CI). Must be a string. | `"false"` | N/A
| `JEST_JUNIT_FILE_PATH_PREFIX` | `filePathPrefix` | Prefix to add to the test suite file path. The value will be prefixed using `path.join`. Useful in case of monorepo | `""` | N/A
| `JEST_JUNIT_INCLUDE_CONSOLE_OUTPUT` | `includeConsoleOutput` | Adds console output to any testSuite that generates stdout during a test run. | `false` | N/A
| `JEST_JUNIT_INCLUDE_SHORT_CONSOLE_OUTPUT` | `includeShortConsoleOutput` | Adds short console output (only message value) to any testSuite that generates stdout during a test run. | `false` | N/A
| `JEST_JUNIT_REPORT_TEST_SUITE_ERRORS` | `reportTestSuiteErrors` | Reports test suites that failed to execute altogether as `error`. _Note:_ since the suite name cannot be determined from files that fail to load, it will default to file path.| `false` | N/A
| `JEST_JUNIT_NO_STACK_TRACE` | `noStackTrace` | Omit stack traces from test failure reports, similar to `jest --noStackTrace` | `false` | N/A
| `JEST_USE_PATH_FOR_SUITE_NAME` | `usePathForSuiteName` | **DEPRECATED. Use `suiteNameTemplate` instead.** Use file path as the `name` attribute of `<testsuite>` | `"false"` | N/A
| `JEST_JUNIT_TEST_CASE_PROPERTIES_JSON_FILE` | `testCasePropertiesFile` | Name of the custom testcase properties file | `"junitProperties.js"` | N/A
| `JEST_JUNIT_TEST_CASE_PROPERTIES_DIR` | `testCasePropertiesDirectory` | Location of the custom testcase properties file | `process.cwd()` | N/A
| `JEST_JUNIT_TEST_SUITE_PROPERTIES_JSON_FILE` | `testSuitePropertiesFile` | Name of the custom testsuite properties file | `"junitTestCaseProperties.js"` | N/A
| `JEST_JUNIT_TEST_SUITE_PROPERTIES_DIR` | `testSuitePropertiesDirectory` | Location of the custom testsuite properties file | `process.cwd()` | N/A
You can configure these options via the command line as seen below:
```shell
JEST_SUITE_NAME="Jest JUnit Unit Tests" JEST_JUNIT_OUTPUT_DIR="./artifacts" jest
```
Or you can also define a `jest-junit` key in your `package.json`. All are **string** values.
```
{
...
"jest-junit": {
"suiteName": "jest tests",
"outputDirectory": ".",
"outputName": "junit.xml",
"uniqueOutputName": "false",
"classNameTemplate": "{classname}-{title}",
"titleTemplate": "{classname}-{title}",
"ancestorSeparator": " › ",
"usePathForSuiteName": "true"
}
}
```
Or you can define your options in your reporter configuration.
```js
// jest.config.js
{
reporters: [
"default",
[ "jest-junit", { suiteName: "jest tests" } ]
]
}
```
### Configuration Precedence
If using the `usePathForSuiteName` and `suiteNameTemplate`, the `usePathForSuiteName` value will take precedence. ie: if `usePathForSuiteName=true` and `suiteNameTemplate="{filename}"`, the filepath will be used as the `name` attribute of the `<testsuite>` in the rendered `jest-junit.xml`).
### Examples
Below are some example configuration values and the rendered `.xml` to created by `jest-junit`.
The following test defined in the file `/__tests__/addition.test.js` will be used for all examples:
```js
describe('addition', () => {
describe('positive numbers', () => {
it('should add up', () => {
expect(1 + 2).toBe(3);
});
});
});
```
#### Example 1
The default output:
```xml
<testsuites name="jest tests">
<testsuite name="addition" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:42:28" time="0.161">
<testcase classname="addition positive numbers should add up" name="addition positive numbers should add up" time="0.004">
</testcase>
</testsuite>
</testsuites>
```
#### Example 2
Using the `classNameTemplate` and `titleTemplate`:
```shell
JEST_JUNIT_CLASSNAME="{classname}" JEST_JUNIT_TITLE="{title}" jest
```
renders
```xml
<testsuites name="jest tests">
<testsuite name="addition" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:45:42" time="0.154">
<testcase classname="addition positive numbers" name="should add up" time="0.005">
</testcase>
</testsuite>
</testsuites>
```
#### Example 3
Using the `ancestorSeparator`:
```shell
JEST_JUNIT_ANCESTOR_SEPARATOR=" › " jest
```
renders
```xml
<testsuites name="jest tests">
<testsuite name="addition" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:47:12" time="0.162">
<testcase classname="addition › positive numbers should add up" name="addition › positive numbers should add up" time="0.004">
</testcase>
</testsuite>
</testsuites>
```
#### Example 4
Using the `suiteNameTemplate`:
```shell
JEST_JUNIT_SUITE_NAME ="{filename}" jest
```
```xml
<testsuites name="jest tests">
<testsuite name="addition.test.js" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:42:28" time="0.161">
<testcase classname="addition positive numbers should add up" name="addition positive numbers should add up" time="0.004">
</testcase>
</testsuite>
</testsuites>
```
#### Example 5
Using `classNameTemplate` as a function in reporter options
```js
// jest.config.js
{
reporters: [
"default",
[
"jest-junit",
{
classNameTemplate: (vars) => {
return vars.classname.toUpperCase();
}
}
]
]
}
```
renders
```xml
<testsuites name="jest tests">
<testsuite name="addition" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:42:28" time="0.161">
<testcase classname="ADDITION POSITIVE NUMBERS" name="addition positive numbers should add up" time="0.004">
</testcase>
</testsuite>
</testsuites>
```
#### Adding custom testsuite properties
New feature as of jest-junit 11.0.0!
Create a file in your project root directory named junitProperties.js:
```js
module.exports = () => {
return {
key: "value",
};
};
```
Will render
```xml
<testsuites name="jest tests">
<testsuite name="addition" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:42:28" time="0.161">
<properties>
<property name="key" value="value" />
</properties>
<testcase classname="addition positive numbers should add up" name="addition positive numbers should add up" time="0.004">
</testcase>
</testsuite>
</testsuites>
```
#### Adding custom testcase properties
Create a file in your project root directory named junitTestCaseProperties.js:
```js
module.exports = (testResult) => {
return {
"dd_tags[test.invocations]": testResult.invocations,
};
};
```
Will render
```xml
<testsuites name="jest tests">
<testsuite name="addition" tests="1" errors="0" failures="0" skipped="0" timestamp="2017-07-13T09:42:28" time="0.161">
<testcase classname="addition positive numbers should add up" name="addition positive numbers should add up" time="0.004">
<properties>
<property name="dd_tags[test.invocations]" value="1" />
</properties>
</testcase>
</testsuite>
</testsuites>
```
WARNING: Properties for testcases is not following standard JUnit XML schema.
However, other consumers may support properties for testcases like [DataDog metadata through `<property>` elements](https://docs.datadoghq.com/continuous_integration/tests/junit_upload/?tab=jenkins#providing-metadata-through-property-elements)
[test-results-processor]: https://github.com/jest-community/jest-junit/discussions/158#discussioncomment-392985