When I run my test in Maven I get this:
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 0, Failures: 0, Errors: 0, Skipped: 0
My test class, JsonReaderTest.class, is placed in src/test/java and follows the correct name convention as far as I know from maven-surefire-plugin.
Tests run fine when run outside of Maven.
I have this plugin included in my pom:
<!-- Executes tests -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
</plugin>
and this in my dependencies:
<!-- Test -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.0.0</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.0.0</version>
</dependency>
and my test class:
package org.avalin.optaplanner.test.java;
import org.avalin.optaplanner.json.JsonReader;
import org.junit.jupiter.api.*;
import java.io.FileNotFoundException;
import java.nio.file.Paths;
import static org.junit.jupiter.api.Assertions.*;
public class JsonReaderTest
{
@Test
@DisplayName("Test: No such file at designated path")
void testloadFromJsonTest() throws Exception
{
Throwable exception = assertThrows(FileNotFoundException.class,
()-> JsonReader.loadFromJson(".json"));
assertEquals(".json (No such file or directory)",
exception.getMessage());
}
@Test
@DisplayName("Test: Load Shifts from JSON (String instead of number)")
void testLoadShiftsFromJson3()
{
Throwable exception = assertThrows(NumberFormatException.class, ()-> JsonReader.loadFromJson(Paths.get("src/main/resources/org/avalin/optaplanner/json/faultyShift-2.json").toAbsolutePath().toString()));
assertEquals("\nOne or more of your \"shift\" elements has a number format exception.\n" +
"Check for errors in your JSON-properties.\n" +
"(Did you insert a string instead of a number in id?)",
exception.getMessage());
}
@Test
@DisplayName("Test: JSON is correctly loaded")
void testJsonIsLoaded()
{
assertFalse(JsonReader.jsonIsLoaded());
}
@AfterEach
void cleanJsonReader()
{
JsonReader.cleanJsonReader();
}
}
When I tried googling this problem, it seemed the only thing that could be wrong would be naming convention (class had to end with or start with test, I tested both with no change) and that the test class should be put into the appropriate folder.
When I run: mvn -Dtest=JsonReaderTest test
I get following:
Failed to execute goal org.apache.maven.plugins:maven-surefire-
plugin:2.20.1:test (default-test) on project optaplanner: No tests were
executed!
The JsonReaderTest.class is also correctly generated inside target/test-classes
What could be the culprit here?
Using the Maven Surefire plugin and JUnit 5 together requires some tweaking ...
From the docs:
The JUnit team has developed a very basic provider for Maven Surefire that lets you run JUnit 4 and JUnit Jupiter tests via mvn test. The pom.xml file in the junit5-maven-consumer project demonstrates how to use it and can serve as a starting point.
Due to a memory leak in Surefire 2.20, the junit-platform-surefire-provider currently only works with Surefire 2.19.1.
...
<build>
<plugins>
...
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19</version>
<dependencies>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-surefire-provider</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>
...