Swift Test Adapter for Visual Studio Code

This extension for Text Explorer UI add ide test capabilities with swift SPM in VSCode and also integrates with CodeLLDB to enable debug capabilities but it doesn't depend from it. Install it only if you want to enable debug capabilities

Features

• Debug on linux
• Reload test lists on save if a test file changes (Configurable)
• Run single test or all tests in a class or all test in a target instead of swift test everything everytime
• Detects test file location and line
• Highlights test failed lines with output
• Prints test run output

Screenshots

Example of running debug

Example of run tests

Missing Features

• AutoRun
• Parallel tests (but not likelly at this moment)
• Code Coverage

Debug

As already mentioned this extension is capable to debug code integrating with the CodeLLDB extension. You can reference their user manual on how to set up the correct liblldb path for the extension to work, then it should work out of the box when selecting the test case to debug.

For instance I've my swift toolchain inside /swift-toolchain/ directory and I've set the lldb backends to /swift-toolchain/usr/lib/liblldb.so

Errors

If you see an error like this

This version of LLDB has no plugin for the swift language. Inspection of frame variables will be limited.

while running a debug session you probably didn't properly set the correct liblldb.so

Could not initialize Python interpreter - some features will be unavailable (e.g. debug visualizers).

in the debug console it's actually a problem with the distributed version of swift lldb and it doesn't seem to cause any problem

Support

This extension is really new so I suppose bugs will be frequent, feel free to open any issue if you find something or you want to propose a new feature

And also I would really appreciate it if you can find 5 minutes to review this extension in the marketplace

Known Issues

Fails to load tests on startup

This often occurs if you have more swift extensions which launch builds and two concurrent build are issued when the extension loads.

The extension rebuilds the whole project when you load tests

This issue occurs if you have enabled the debugging setting and you launch a swift build command. When the debugging setting is enabled the extension build the project whit the command swift test --enable-test-discovery -Xswiftc -Xfrontend -Xswiftc -serialize-debugging-options plus the build options passed in the settings. These flags makes possible to correctly debug a test when is launched, but if you launch a build with different flags all the project will be rebuilded from zero.

Pro Tip you can build the project with the same flags and debug the executable using the same lldb extension