Package org.apache.tools.ant.taskdefs.optional.junitlauncher

# Interface TestResultFormatter

All Superinterfaces:
  `AutoCloseable`, `Closeable`, `org.junit.platform.launcher.TestExecutionListener`

public interface TestResultFormatter extends org.junit.platform.launcher.TestExecutionListener, Closeable
A `TestExecutionListener` which lets implementing classes format and write out the test execution results.

## Method Summary

Modifier and Type
Method
Description
`void`
`setContext(TestExecutionContext context)`
This method will be invoked by the `junitlauncher` and will be passed a `TestExecutionContext`.
`void`
`setDestination(OutputStream os)`
This method will be invoked by the `junitlauncher` and will be passed the `OutputStream` to a file, to which the formatted result is expected to be written to.
`void`
`setUseLegacyReportingName(boolean useLegacyReportingName)`
This method will be invoked by the `junitlauncher` to let the result formatter implementation know whether or not to use JUnit 4 style, legacy reporting names for test identifiers that get displayed in the test reports.
`default void`
`sysErrAvailable(byte[] data)`
This method will be invoked by the `junitlauncher`, regularly/multiple times, as and when any content is generated on the standard error stream during the test execution.
`default void`
`sysOutAvailable(byte[] data)`
This method will be invoked by the `junitlauncher`, regularly/multiple times, as and when any content is generated on the standard output stream during the test execution.

### Methods inherited from interface java.io.Closeable

`close`

### Methods inherited from interface org.junit.platform.launcher.TestExecutionListener

`dynamicTestRegistered, executionFinished, executionSkipped, executionStarted, reportingEntryPublished, testPlanExecutionFinished, testPlanExecutionStarted`

## Method Details

### setDestination

void setDestination(OutputStream os)
This method will be invoked by the `junitlauncher` and will be passed the `OutputStream` to a file, to which the formatted result is expected to be written to.

This method will be called once, early on, during the initialization of this `TestResultFormatter`, typically before the test execution itself has started.

Parameters:
  `os` - The output stream to which to write out the result

### setContext

void setContext(TestExecutionContext context)
This method will be invoked by the `junitlauncher` and will be passed a `TestExecutionContext`. This allows the `TestResultFormatter` to have access to any additional contextual information to use in the test reports.

Parameters:
  `context` - The context of the execution of the test

### setUseLegacyReportingName

void setUseLegacyReportingName(boolean useLegacyReportingName)
This method will be invoked by the `junitlauncher` to let the result formatter implementation know whether or not to use JUnit 4 style, legacy reporting names for test identifiers that get displayed in the test reports. Result formatter implementations are allowed to default to a specific reporting style for test identifiers, if this method isn't invoked.

Parameters:
  `useLegacyReportingName` - `true` if legacy reporting name is to be used, `false` otherwise.
Since:
  Ant 1.10.10

### sysOutAvailable

default void sysOutAvailable(byte[] data)
This method will be invoked by the `junitlauncher`, regularly/multiple times, as and when any content is generated on the standard output stream during the test execution. This method will be only be called if the `sendSysOut` attribute of the `listener`, to which this `TestResultFormatter` is configured for, is enabled

Parameters:
  `data` - The content generated on standard output stream

### sysErrAvailable

default void sysErrAvailable(byte[] data)
This method will be invoked by the `junitlauncher`, regularly/multiple times, as and when any content is generated on the standard error stream during the test execution. This method will be only be called if the `sendSysErr` attribute of the `listener`, to which this `TestResultFormatter` is configured for, is enabled

Parameters:
  `data` - The content generated on standard error stream