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→Single test method from one test class
The convention is tu follow the structure shown on the image.
The convention is tu follow the structure shown on the image.
=== Test example ===
===Test example===
<syntaxhighlight lang="java">
<syntaxhighlight lang="java">
package com.luv2code.junitdemo;
package com.luv2code.junitdemo;
</syntaxhighlight>
</syntaxhighlight>
=== Run unit test ===
===Run unit test===
==== All tests ====
====All tests====
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
mvn test
mvn test
</syntaxhighlight>
</syntaxhighlight>
==== Single test ====
====Single test====
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
mvn -Dtest=TestMessageBuilder test
mvn -Dtest=TestMessageBuilder test
</syntaxhighlight>
</syntaxhighlight>
==== Single test method from one test class ====
====Single test method from one test class====
<syntaxhighlight lang="bash">
<syntaxhighlight lang="bash">
mvn -Dtest=TestMessageBuilder#testHelloWorld test
mvn -Dtest=TestMessageBuilder#testHelloWorld test
</syntaxhighlight>
</syntaxhighlight>
=== JUnit Assertions ===
<br /><syntaxhighlight lang="java">
import static org.junit.jupiter.api.Assertions.*;
</syntaxhighlight>org.junit.jupiter.api.Assertions contains JUnit Assertions
assertEquals(expected, actual, optional_message)
assertNotEquals(unexpected, actual, optional_message)
assertNull()
assertNotNull()
....
==Example: Spring Boot with Data JPA and in memory database H2==
==Example: Spring Boot with Data JPA and in memory database H2==