Bug: Coverage not shown for subprojects in Explorer and Testing tab

[dishmaker]

Coverage from jacoco for imported source is not being show in UI. Only the project with unit tests is annotated with coverage percentage. Dependency coverage is ignored in the UI.

Environment:

• VS Code Version:1.87.0
• Extension Version:v0.25.2023121402
• JDK Type & Version:Eclipse Adoptium JDK 8.0.372
• OS Type & Version: Windows

Step to Reproduce: Set up an eclipse .project and .classpath with another project inside.

• ./proj/src (MainProject is here)
• ./proj/test/src (MyProject_Tests is here)

Inside (tests) project should contain .classpath with classpathentry src=/MainProject.

Run JUnit test coverage in a project MyProject_Tests which imports MainProject with: Ctrl+Shift+P: Test: Run All Tests with Coverage

Expected Behavior: Coverage generated for MyProject_Tests and MainProject too.

Actual Behavior: Only MyProject_Tests coverage is shown in Explorer and Testing tab.

Note: jacoco.exec is generated with subproject class paths. However, VSCode shows coverage only for the _Tests project.

[jdneo]

Seems like this part of the code should be improved:

https://github.com/microsoft/vscode-java-test/blob/57518613e694d72e0d7e4a330307c878acf44907/java-extension/com.microsoft.java.test.plugin/src/main/java/com/microsoft/java/test/plugin/coverage/CoverageHandler.java#L120-L122

For example, expand the classpath when it's a project/container, and persist all output -> source root relationships for those new discovered source kind entry.

[jdneo]

Should be fixed by https://github.com/microsoft/vscode-java-test/pull/1639/commits/99faaae53233a453ecc000cc3946c61f66171f02

I'll schedule a pre-release sooner.

[jdneo]

0.40.2024040105 is released which fixes this issue.

[dishmaker]

Works fine. Thanks!