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05-test-execution-and-reporting.md

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+# Key CI/CD/Jenkins Concepts and their Usage
+
+## Displaying JUnit and JaCoCo test results
+
+1. Configure the `gradle-initializr` project to parse the JUnit XML results for unit test. The files can be found in the directory `build/test-results/test`.
+2. Execute the build twice to generate a graph. Have a look at the executed tests in the test results.
+3. Include all test results (unit and integration tests) in the reporting.
+4. Have a look at how the test result trend changes.
+5. Install the JaCoCo plugin.
+6. Reconfigure the Gradle build step to also generate JaCoCo reports: `clean build jacocoTestReport jacocoIntegrationTestReport`.
+7. Add a post-build action for publish the JaCoCo reports. Use the following path to look for results: `build/jacoco/**.exec`.
+8. Execute the build twice to generate a graph. Have a look at the code coverage results.
+
+<details><summary>Show Solution</summary>
+<p>
+
+Publish the JUnit reports by pointing to the exact directory containing the XML files.
+
+![Publish JUnit Results](./images/05-test-execution-and-reporting/publish-unit-tests.png)
+
+After executing the build twice you will see a test result trend graph.
+
+![JUnit Test Trend](./images/05-test-execution-and-reporting/unit-test-result-trend.png)
+
+Publish the JUnit reporting by using a wild card.
+
+![Publish All JUnit Results](./images/05-test-execution-and-reporting/publish-all-tests.png)
+
+The trend changes accordingly.
+
+![Changed Test Result Trend](./images/05-test-execution-and-reporting/all-test-result-trend.png)
+
+Install the JaCoCo plugin.
+
+![JaCoCo Plugin](./images/05-test-execution-and-reporting/jacoco-plugin.png)
+
+Change the task list executed by the Gradle build step.
+
+![JaCoCo Tasks](./images/05-test-execution-and-reporting/jacoco-tasks.png)
+
+Configure JaCoCo reporting.
+
+![JaCoCo Configuration](./images/05-test-execution-and-reporting/jacoco-config.png)
+
+The JaCoCo coverage trend renders after executing the build twice.
+
+![JaCoCo Coverage Report Trend](./images/05-test-execution-and-reporting/jacoco-trend.png)
+
+</p>
+</details>