TraceUnit extension for Junit5

TraceUnit is a library that helps with Opentelemetry tracing mocking/testing

How to:

Add dependency to your project

For maven:

<dependency>
  <groupId>io.github.traceunit</groupId>
  <artifactId>traceunit-junit5</artifactId>
  <version>0.0.4</version>
  <scope>test</scope>
</dependency>

For Gradle:

testImplementation 'io.github.traceunit:traceunit-junit5:0.0.4'

1. Extend your test class with TraceUnitExtension:

@ExtendWith({TraceUnitExtension.class})

Span.current() will be automatically mocked after this step

2. Annotate Tracer mock with @MockTracer

@MockTracer
Tracer tracer;

4. Inject mocked item into any test class:

    @BeforeEach
    void setUp() {
        testService = new TestService();
        testService.tracer = tracer;