strike s 𝑎̶𝑏̶𝑐̶𝑑̶𝑒̶𝑓̶ strike-curly sc 𝑎̴𝑏̴𝑐̴𝑑̴𝑒̴𝑓̴ underline u 𝑎̲𝑏̲𝑐̲𝑑̲𝑒̲𝑓̲ underline-curly uc 𝑎̰𝑏̰𝑐̰𝑑̰𝑒̰𝑓̰ underline-sm u-sm ...

This tool lets you write tests for your type definitions (i.e. your .d.ts files) by creating files with the .test-d.ts extension. These .test-d.ts files will not be executed, and not even compiled in ...