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→Package structure to create tests
===Package structure to create tests===
===Package structure to create tests===
[[File:Pstructjstest.png|left|thumb]]
[[File:Pstructjstest.png|thumb|alt=|none]]
The convention is tu follow the structure shown on the image.
The convention is tu follow the structure shown on the image.
=== Test example ===
<syntaxhighlight lang="java">
package com.luv2code.junitdemo;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.Assertions;
class DemoUtilsTest {
@Test
void testEqualsAndNotEquals() {
// Set up
DemoUtils demoUtils = new DemoUtils();
int expected = 6;
// Execute
int actual = demoUtils.add(2, 4);
// Assert
Assertions.assertEquals(expected, actual, "2 + 4 must be 6")
}
}
</syntaxhighlight>
=== Run unit test ===
==== All tests ====
<syntaxhighlight lang="bash">
mvn test
</syntaxhighlight>
==== Single test ====
<syntaxhighlight lang="bash">
mvn -Dtest=TestMessageBuilder test
</syntaxhighlight>
==== Single test method from one test class ====
<syntaxhighlight lang="bash">
mvn -Dtest=TestMessageBuilder#testHelloWorld test
</syntaxhighlight>
==Example: Spring Boot with Data JPA and in memory database H2==
==Example: Spring Boot with Data JPA and in memory database H2==