All tests are passed but --coverage fails.

[ygnoh]

I'm integrating with SonarQube, so I'm trying to extract coverage information. Both v8 and istanbul give me an error while extracting coverage.

The error message is:

TypeError: this.toSlices is not a function or its return value is not iterable

(here is the code calling toSlices)

Are there any suspicious codes to look?

My System info:

System:
  OS: macOS 14.3.1
  CPU: (10) arm64 Apple M1 Max
  Memory: 654.00 MB / 32.00 GB
  Shell: 5.9 - /bin/zsh
Binaries:
  Node: 18.19.0 - ~/.nvm/versions/node/v18.19.0/bin/node
  Yarn: 3.7.0 - ~/.nvm/versions/node/v18.19.0/bin/yarn
  npm: 10.2.3 - ~/.nvm/versions/node/v18.19.0/bin/npm
Browsers:
  Chrome: 122.0.6261.69
  Safari: 17.3.1

vitest.config.ts:

import {defineConfig} from "vite";
import react from "@vitejs/plugin-react";
import tsconfigPaths from "vite-tsconfig-paths";
import dts from "vite-plugin-dts";
import autoprefixer from "autoprefixer";
import PrefixWrap from "postcss-prefixwrap";

export default defineConfig({
    return {
        plugins: [react(), tsconfigPaths(), dts({exclude: ["**/*.test.ts"]})],
        build: {
            lib: {
                entry: "./src/index.tsx",
                formats: ["es"],
                fileName: "index",
            },
        },
        css: {
            postcss: {
                plugins: [
                    autoprefixer,
                    PrefixWrap(".aaaa", {
                        ignoredSelectors: [":root", ".bbbb"],
                        blacklist: ["./cccc/index.scss"],
                    }),
                ],
            },
        },
    };
});

And I'm using "vite": "^5.0.12",, "vitest": "^1.3.0", "@vitest/coverage-v8": "^1.3.1".

[AriPerkkio]

Update your vitest package to latest version.

[ygnoh]

Thank you. I hadn't thought of that.