Test Runner can't find main class

[amitlevy21]

Issue Type: Bug

I have a Spring boot project that I'm trying to test with this extension.
I'm using Java 8 and Junit.
It's a maven project.

The test runner claim it cannot find the main class.

[INFO] Listening for transport dt_socket at address: 38349
[ERROR] Error: Could not find or load main class com.microsoft.java.test.runner.Launcher
.
[INFO] Listening for transport dt_socket at address: 37621
[ERROR] Error: Could not find or load main class com.microsoft.java.test.runner.Launcher.
[ERROR] 
.
[INFO] Listening for transport dt_socket at address: 38995
[ERROR] Error: Could not find or load main class com.microsoft.java.test.runner.Launcher

here is my testing code

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class ElementRestControllerTest {

    @LocalServerPort
    private int port;

    private String url;

    private RestTemplate restTemplate;

    private ObjectMapper jsonMapper;

    @Rule
    public ExpectedException thrown = ExpectedException.none();

    private ElementTO dummyElement;
    private ElementTO dummy2;
    private ElementTO dummy3;


    @PostConstruct
    public void init() {
        this.restTemplate = new RestTemplate();
        this.url = "http://localhost:" + port;
        System.err.println(this.url);

        // Jackson init
        this.jsonMapper = new ObjectMapper();
    }

    @Before
    public void setup() {
        Map<String, Object> att = new HashMap<>();
        att.put("attribute1", new HashMap());
        this.dummyElement = new ElementTO("sheena", "123", new Location(13.0, 25.0), "Pen", new Date("20/11/18"),
                new Date("19/11/19"), "tool", att, "sheena", "123@gmail.com");

        this.dummy2 = new ElementTO("playground", "456", this.dummyElement.getLocation(), this.dummyElement.getName(),
                this.dummyElement.getCreationDate(), this.dummyElement.getExpirationDate(), this.dummyElement.getType(),
                this.dummyElement.getAttributes(), this.dummyElement.getCreatorPlayground(),
                this.dummyElement.getCreatorEmail());
        this.dummy3 = new ElementTO("playground", "789", new Location(4.0, 24.9), this.dummyElement.getName(),
                this.dummyElement.getCreationDate(), this.dummyElement.getExpirationDate(), this.dummyElement.getType(),
                this.dummyElement.getAttributes(), this.dummyElement.getCreatorPlayground(),
                this.dummyElement.getCreatorEmail());

    }

    @Test
    public void addNewElementSuccessfully() {

        String targetUrl = String.format("%s/playground/elements/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail());

        ElementTO actualElement = this.restTemplate.postForObject(targetUrl, this.dummyElement, ElementTO.class);
        assertThat(actualElement).isNotNull().isEqualTo(this.dummyElement);
    }

    @Test
    public void updateElementSuccessfully() {
        String postTargetUrl = String.format("%s/playground/elements/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail());

        // Given
        this.dummyElement.setLocation(new Location(26.0, 24.9));
        this.restTemplate.postForObject(postTargetUrl, this.dummyElement, ElementTO.class);

        // When
        ElementEntity elementEntity = this.dummyElement.toEntity();
        String putTargetUrl = String.format("%s/playground/elements/%s/%s/%s/%s", this.url,
                elementEntity.getCreatorPlayground(), elementEntity.getCreatorEmail(), elementEntity.getPlayground(),
                elementEntity.getId());

        this.restTemplate.put(putTargetUrl, this.dummyElement);

        // Then
        assertThat(elementEntity.getLocation()).isEqualTo(new Location(26.0, 24.9));
    }

    @Test
    public void getElementByItsIDSuccessfully() {
        String postTargetUrl = String.format("%s/playground/elements/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail());

        // Given
        this.restTemplate.postForObject(postTargetUrl, this.dummyElement, ElementTO.class);

        // When
        String getTargetUrl = String.format("%s/playground/elements/%s/%s/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail(),
                this.dummyElement.getPlayground(), this.dummyElement.getId());
        ElementTO actualElementTO = this.restTemplate.getForObject(getTargetUrl, ElementTO.class);

        // Then
        assertThat(actualElementTO).isEqualTo(this.dummyElement);
    }

    @Test
    public void getElementByItsIDWhenIDDoesNotExistShouldHttpServerErrorException() throws HttpServerErrorException {

        thrown.expect(HttpServerErrorException.class);
        thrown.expectMessage("500 null");

        // When
        String getTargetUrl = String.format("%s/playground/elements/%s/%s/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail(),
                this.dummyElement.getPlayground(), 1);
        this.restTemplate.getForObject(getTargetUrl, ElementTO.class);

    }

    @Test
    public void getAllElementsSuccesfully() {
        String postTargetUrl = String.format("%s/playground/elements/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail());

        // Given
        this.restTemplate.postForObject(postTargetUrl, this.dummyElement, ElementTO.class);
        this.restTemplate.postForObject(postTargetUrl, this.dummy2, ElementTO.class);

        // When
        String getAllUrl = String.format("%s/playground/elements/%s/%s/all", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail());
        ElementTO[] elements = this.restTemplate.getForObject(getAllUrl, ElementTO[].class);

        // Then
        ElementTO[] expected = { this.dummyElement, dummy2 };
        assertThat(elements).isNotNull().hasSize(2).isEqualTo(expected);

    }

    @Test
    public void getElementByCoordinatesShouldReturnMatch() {
        String postTargetUrl = String.format("%s/playground/elements/%s/%s", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail());

        // Given
        this.restTemplate.postForObject(postTargetUrl, this.dummyElement, ElementTO.class);
        this.restTemplate.postForObject(postTargetUrl, this.dummy3, ElementTO.class);

        // When
        ///playground/elements/{userPlayground}/{email}/near/{x}/{y}/{distance}
        String getAllUrl = String.format("%s/playground/elements/%s/%s/near/%d/%d/%d", this.url,
                this.dummyElement.getCreatorPlayground(), this.dummyElement.getCreatorEmail(), 10, 20, 5);
        assertThat(getAllUrl).isEqualTo(this.url + "/playground/elements/sheena/123@gmail.com/near/10/20/5");
        ElementTO[] elements = this.restTemplate.getForObject(getAllUrl, ElementTO[].class);

        assertThat(elements).containsOnly(this.dummyElement);

    }
}

Extension version: 0.11.0
VS Code version: Code 1.29.1 (bc24f98b5f70467bc689abf41cc5550ca637088e, 2018-11-15T19:07:43.495Z)
OS version: Linux x64 4.15.0-39-generic

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz (4 x 1728)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: disabled_software video_decode: unavailable_software video_encode: unavailable_software webgl: enabled webgl2: enabled
Load (avg)	1, 1, 1
Memory (System)	7.70GB (1.33GB free)
Process Argv	--unity-launch
Screen Reader	no
VM	0%

[jdneo]

Seems you meet this issue when debugging the test code.

Is the functionality works correctly when just triggering Run Test?

[amitlevy21]

@jdneo thanks for the quick reply. It also happen when i try to use Run Test.
the only way i can run the tests if via the maven plugin which triggers the command mvnw test
Iv'e tried now running Run Test on a windows machine and it got stuck on running tests ( i will further check on this). Though i can see in the logs that it ran part of the tests

[jdneo]

Hmm, looks wired. I haven't met this issue before.

Will it help if you do the following things?

• Uninstall the extension in VS Code
• Remove the extension files under: $HOME/.vscode/extensions/vscjava.vscode-java-test-*
• Install the extension again

[ugurlu]

same here. plugin version 0.11.1
code version 1.29.1-1542309157

Java 8, JUnit5, maven

[amitlevy21]

Hmm, looks wired. I haven't met this issue before.

Will it help if you do the following things?

• Uninstall the extension in VS Code
• Remove the extension files under: $HOME/.vscode/extensions/vscjava.vscode-java-test-*
• Install the extension again

On the Ubuntu machine, reinstalling the extension did not help. I also updated the extension to 0.11.1, same thing.

On the windows machine, I ran a simple test that tests a POJO class, the test runner ran the test and showed the results. But when i ran the spring test of the code attached below, the test runner hanged with the message Running tests, though i can see in the logs that the tests ran and completed and even passed. here are the logs

[INFO] @@<TestRunner-{"name":"testFinished", "attributes":{"name":"com.sheena.playground.api.ElementRestControllerTest#getElementByItsIDSuccessfully", "duration":"36"}}-TestRunner>
@@<TestRunner-{"name":"testSuiteFinished", "attributes":{"name":"com.sheena.playground.api.ElementRestControllerTest"}}-TestRunner>
@@<TestRunner-{"name":"testSummary", "attributes":{"message":"Total tests run: 7, Failures: 0, Skips: 0"}}-TestRunner>

[jdneo]

@ugurlu @amitlevy21 Is it possible to share a sample project to me to repro the issue?

I tried but not able to repro it on my side

[amitlevy21]

@jdneo its a private repo, i can share a snapshot though.
Test-Runner-Application.zip

[jdneo]

@ugurlu Is your environment also Linux?

[ugurlu]

ubuntu 18.04

[ugurlu]

interesting note.
after commenting out spring-boot-maven-plugin, test works.

<plugin>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-maven-plugin</artifactId>
	<executions>
		<execution>
			<goals>
				<goal>repackage</goal>
			</goals>
		</execution>
	</executions>
</plugin>

[amitlevy21]

interesting note.
after commenting out spring-boot-maven-plugin, test works.

<plugin>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-maven-plugin</artifactId>
	<executions>
		<execution>
			<goals>
				<goal>repackage</goal>
			</goals>
		</execution>
	</executions>
</plugin>

did not worked for me, i'm still getting the same error.
Oddly enough, the entity test i managed to run before, does not run now even after uncommenting plugin

[zerosandones]

I am having the same issue running tests since last week. Get this error in output panel [ERROR] Error: Could not find or load main class com.microsoft.java.test.runner.Launcher. Running mvn test runs the tests as normal.

I have uninstalled the extension ,reloaded vscode, then reinstalled.

java test runner 0.11.1
vscode 1.29.1
java 1.8.0_181
junit 4.12
ubuntu 8.10

[zerosandones]

P.S I am not using sprint boot in my project

[zerosandones]

Ok did some playing around after I saw that the other two people were using spring boot. I tried another project that was a basic java project and the tests worked. Then I started added dependencies from the other project that didn't work and had an issue as soon as I added kumuluzee-bom and the micro profile 1.2

   <groupId>com.kumuluz.ee</groupId>
   <artifactId>kumuluzee-bom</artifactId>
   <version>2.53</version>
   <type>pom</type>
   <scope>import</scope>

   <groupId>com.kumuluz.ee</groupId>
   <artifactId>kumuluzee-microProfile-1.2</artifactId>
   <version>2.5.3</version>

I have not updated these dependenies to a new version for a while so don't think the issue is with them.