Monday 9 August 2021

Junit5: ParameterizedTest: Customizing display names

‘name’ attribute of ParameterizedTest annotations provides support for placeholders to customize the display name.

 

Below table summarizes placeholders supported in custom display names.

 

Placeholder

Display Name

{displayName}

the display name of the method

{index}

the current invocation index (1-based)

{arguments}

the complete, comma-separated arguments list

{argumentsWithNames}

the complete, comma-separated arguments list with parameter names

{0}, {1}, …

an individual argument

 

Find the below working application.

 

ParameterizedTestCustomDisplayName.java

package com.sample.app;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;

public class ParameterizedTestCustomDisplayName {
	@DisplayName("demoTest")
	@ParameterizedTest(name = "{index} ==> the Capital of ''{0}'' is {1}")
	@CsvSource({ "India, New Delhi", "AFGHANISTAN, KABUL", "'CENTRAL AFRICAN REPUBLIC', BANGUI" })
	void testWithCustomDisplayNames(String country, String capital) {
		
		
	}
}

 

Run above test class, you can observe that the display names are reflected in junit window.


 

 

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