WebStorm: TypeScript source-mapping in debug mode doesn't work

Question

I have a test-suit and a class under test, both are written in TypeScript. I am in a node-project and I run the Jest-Test from WebStorm in Debug-Mode. When I set a break point in the test WebStorm stopps exactly where I want. But when I step into the class under test the debugger jumps to the last line of it's .ts file. In the debug view I see that the linenumbers doesn't correspond to the ts-file. I seems like the source-mapping doesn't work for my class under test.

Q: How to fix the source-mapping?

The project structure is a follows:

project-root
  /projects/my-node-project/src
      /services         //here is the production code
      /specs            //here are the test-suits

lena · Accepted Answer · 2020-05-14 18:29:10Z

2

Please check your jest.config.js - what does it look like? Do you have collectCoverage enabled in it? If the source file is instrumented for coverage, the generated code can't be correctly mapped to source; it's a well known limitation (not specific to WebStorm,BTW)

answered May 14, 2020 at 18:29

lena

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1 Comment

Chriss Over a year ago

Thanks that solves the problem! Do you know of an option/way in WebStorm to override collectCoverage for launch-configurations that where started in Debug mode?

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