Coverage issue with mono-repo

[GordonSmith]

I have a mono repo, where I use esbuild for the bundling and vitest for the tests and all is good, I am now trying to enable coverage and am hitting what I think is a pathing / alias issue.

Here is my vite.config.ts file (in the root folder) - the coverage settings are tweaked to highlight what I think is my issue:

import { defineConfig } from "vitest/config";

export default defineConfig(({ mode }) => {
    switch (mode) {
        case "node":
            return {
                test: {
                    include: [
                        "tests/*.spec.ts",
                        "tests/node/*.spec.ts"
                    ],
                    node: {
                        enabled: true,
                        provider: "node",
                    },
                    testTimeout: 20000,
                    coverage: {
                        provider: "v8",
                        allowExternal: true,
                        // include: ["src/**/*.ts"],
                        reporter: ["json", "text"]
                    }
                }
            };
...

And here is the output for a coverage run in packages/base91:

-------------------------------------|---------|----------|---------|---------|-------------------
File                                 | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
-------------------------------------|---------|----------|---------|---------|-------------------
All files                            |   68.79 |    76.78 |   69.23 |   68.79 |                   
 build/build/packages/base91/src-cpp |     100 |    74.15 |   65.27 |     100 |                   
  base91lib.js                       |     100 |    70.88 |   63.76 |     100 | 3,9               
  base91lib.wasm                     |     100 |      100 |     100 |     100 |                   
 build/packages/base91/src           |     100 |      100 |     100 |     100 |                   
  base91.ts                          |     100 |      100 |     100 |     100 |                   
  wasm-library.ts                    |     100 |      100 |     100 |     100 |                   
 packages/base91                     |       0 |        0 |       0 |       0 |                   
  esbuild.js                         |       0 |        0 |       0 |       0 | 1-4               
 packages/base91/src                 |       0 |    33.33 |   33.33 |       0 |                   
  base91.ts                          |       0 |        0 |       0 |       0 | 1-101             
  index.ts                           |       0 |        0 |       0 |       0 | 1                 
  wasm-library.ts                    |       0 |      100 |     100 |       0 | 10-59             
-------------------------------------|---------|----------|---------|---------|-------------------

So it is calculating the coverage correctly for the top half with invalid paths, while skipping the bottom half which has the correct pathing.

Suggestions?

[hi-ogawa]

Seeing a path like build/build/..., it might be a same source map issue as #6526. It should be fixed in latest Vite, but not released yet.

[GordonSmith]

Thanks for the heads up, I am seeing similar issue when debugging with a stray "build" in the source path so fingers crossed its the same issue...