panoptes/test-tracer

A Maven plugin that turns OpenTelemetry traces emitted during Spring Boot tests into a static HTML report, designed to be uploaded as a CI artifact for flaky-test diagnosis.

Status: pre-alpha. Nothing published yet, APIs will change.

Modules

Module	What it does
test-tracer-core	OTel SpanExporter that writes spans to NDJSON.
test-tracer-junit5	JUnit 5 extension that opens a root span per test and stamps status/failure on it.
test-tracer-spring-boot-starter	Spring Boot autoconfig wiring the exporter as a SpanProcessor bean.
test-tracer-maven-plugin	record + report goals — globs NDJSON across modules and renders the static HTML site.

Quickstart (coming in v0.1)

<dependency>
    <groupId>com.etrandafir.panoptes</groupId>
    <artifactId>test-tracer-spring-boot-starter</artifactId>
    <version>0.1.0</version>
    <scope>test</scope>
</dependency>

<plugin>
    <groupId>com.etrandafir.panoptes</groupId>
    <artifactId>test-tracer-maven-plugin</artifactId>
    <version>0.1.0</version>
    <executions>
        <execution>
            <goals><goal>report</goal></goals>
        </execution>
    </executions>
</plugin>

./mvnw verify
# → target/test-tracer/site/index.html

Building locally

Requires JDK 17+. Maven is bundled via the wrapper.

./mvnw verify

Design and roadmap

• CLAUDE.md — locked architecture decisions and scope boundaries.
• PLAN.md — phased implementation plan.

License

Apache 2.0.