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Junit5: TestReporterParameterResolver: Get data about current test run

If a constructor or method parameter is of type Testreporter, the TestReporterParameterResolver will supply an instance of TestReporter. The TestReporter can be used to publish additional data about the current test run.


Find the below working applications.


import java.util.HashMap;
import java.util.Map;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestReporter;

public class TestReporterDemo {
void reportSingleValue(TestReporter testReporter) {
System.out.println("\nInside reportSingleValue method");
testReporter.publishEntry("a status message");

void reportKeyValuePair(TestReporter testReporter) {
System.out.println("\nInside reportKeyValuePair method");
testReporter.publishEntry("methodName", "reportKeyValuePair");

void reportMultipleKeyValuePairs(TestReporter testReporter) {
System.out.println("\nInside reportMultipleKeyValuePairs method");

Map values = new HashMap();
testReporter.publishEntry("methodName", "reportMultipleKeyValuePairs");
testReporter.publishEntry("demo", "TestReporter");


Run above test class, you will see below messages in console.

Inside reportSingleValue method
TestIdentifier [reportSingleValue(TestReporter)]
ReportEntry [timestamp = 2020-07-04T12:35:26.408, value = 'a status message']

Inside reportMultipleKeyValuePairs method
TestIdentifier [reportMultipleKeyValuePairs(TestReporter)]
ReportEntry [timestamp = 2020-07-04T12:35:26.416, methodName = 'reportMultipleKeyValuePairs']
TestIdentifier [reportMultipleKeyValuePairs(TestReporter)]
ReportEntry [timestamp = 2020-07-04T12:35:26.416, demo = 'TestReporter']
TestIdentifier [reportMultipleKeyValuePairs(TestReporter)]
ReportEntry [timestamp = 2020-07-04T12:35:26.416]

Inside reportKeyValuePair method
TestIdentifier [reportKeyValuePair(TestReporter)]
ReportEntry [timestamp = 2020-07-04T12:35:26.418, methodName = 'reportKeyValuePair']

Junit test report window is given below.



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Junit5: TestReporterParameterResolver: Get data about current test run


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