istanbul test coverage shows wrong result

[ademyalcin27]

Hello,

I'm experiencing an issue with Istanbul test coverage using Vitest. After recent updates, my coverage reports are showing 0% coverage as if my existing tests are being ignored.

This was working correctly before the updates. I'm currently using the latest versions of Vitest and related packages.

Could you please help me resolve this issue?

// vitest.config.ts
import { fileURLToPath } from "node:url";
import basicSsl from "@vitejs/plugin-basic-ssl";
import { defineVitestConfig } from "@nuxt/test-utils/config";
import { coverageConfigDefaults } from "vitest/config";

export default defineVitestConfig({
	plugins: [basicSsl()],
	resolve: {
		alias: {
			"@": fileURLToPath(new URL("./", import.meta.url)),
		},
	},
	test: {
		environment: "jsdom",
		globals: true,
		reporters: ["default", "html"],
		outputFile: {
			html: "./testReports/index.html",
		},
		css: true,
		include: ["./**/*.{test,spec}.{ts,js,tsx}"],
		exclude: [
			"./**/*.d.ts",
			"testReports/**/*",
			"node_modules/**/*",
			"assets/**/*",
			".nuxt/**/*",
			".output/**/*",
			"**/__snapshots__/**",
			"generate_csp_hashes.cjs",
			"**/*.vue",
		],
		coverage: {
			reportsDirectory: "./testReports",
			provider: "istanbul",
			enabled: true,
			reporter: [
				"json",
				"text",
				[
					"html",
					{
						subdir: "coverage",
					},
				],
			],
			exclude: [
				...coverageConfigDefaults.exclude,
			],
			thresholds: {
				statements: 80,
				branches: 80,
				functions: 80,
				lines: 80,
			},
		},
		setupFiles: ["./test/setup.ts"],
	},
});

current version

"devDependencies": {
		"@nuxt/devtools": "1.7.0",
		"@nuxt/test-utils": "3.15.4",
		"@nuxtjs/eslint-config": "12.0.0",
		"@nuxtjs/eslint-config-typescript": "12.1.0",
		"@nuxtjs/google-fonts": "3.2.0",
		"@nuxtjs/i18n": "9.3.1",
		"@nuxtjs/stylelint-module": "5.2.0",
		"@nuxtjs/tailwindcss": "6.13.1",
		"@testing-library/user-event": "14.6.1",
		"@testing-library/vue": "8.1.0",
		"@typescript-eslint/eslint-plugin": "^5.62.0",
		"@typescript-eslint/parser": "^5.62.0",
		"@vitejs/plugin-basic-ssl": "1.2.0",
		"@vitejs/plugin-vue": "5.2.1",
		"@vitest/browser": "3.0.8",
		"@vitest/coverage-istanbul": "3.0.8",
		"@vitest/ui": "3.0.8",
		"@vue/test-utils": "2.4.6",
		"@vueuse/core": "12.5.0",
		"@vueuse/nuxt": "12.5.0",
		"esbuild": "^0.19.2",
		"eslint": "8.48.0",
		"eslint-config-prettier": "10.0.1",
		"eslint-import-resolver-typescript": "^3.8.4",
		"eslint-plugin-import": "^2.31.0",
		"eslint-plugin-vue": "9.32.0",
		"happy-dom": "16.8.1",
		"jsdom": "26.0.0",
		"lefthook": "^1.7.1",
		"libphonenumber-js": "^1.10.47",
		"nuxt": "3.15.4",
		"nuxt-svgo": "4.0.15",
		"playwright": "1.50.1",
		"prettier": "3.4.2",
		"prettier-plugin-tailwindcss": "0.6.11",
		"sass": "^1.64.1",
		"sass-loader": "^13.3.2",
		"stylelint": "16.15.0",
		"vitest": "3.0.8",
		"vue": "3.5.13",
		"vue-eslint-parser": "9.4.3",
		"vue-router": "4.5.0",
		"vue-tsc": "2.2.8"
	},

old versions

"devDependencies": {
		"@nuxt/devtools": "1.3.1",
		"@nuxt/test-utils": "3.11.0",
		"@nuxtjs/eslint-config": "^12.0.0",
		"@nuxtjs/eslint-config-typescript": "^12.1.0",
		"@nuxtjs/google-fonts": "3.1.3",
		"@nuxtjs/i18n": "^8.0.0-rc.7",
		"@nuxtjs/stylelint-module": "^4.1.0",
		"@nuxtjs/tailwindcss": "^6.2.0",
		"@testing-library/user-event": "^14.5.2",
		"@testing-library/vue": "^8.0.1",
		"@typescript-eslint/eslint-plugin": "^5.48.0",
		"@typescript-eslint/parser": "^5.48.0",
		"@vitejs/plugin-basic-ssl": "^1.1.0",
		"@vitejs/plugin-vue": "3.2.0",
		"@vitest/browser": "^1.3.1",
		"@vitest/coverage-istanbul": "1.6.0",
		"@vitest/ui": "^1.2.1",
		"@vue/test-utils": "2.4.3",
		"@vueuse/core": "^9.12.0",
		"@vueuse/nuxt": "^9.10.0",
		"esbuild": "^0.19.2",
		"eslint": "^8.31.0",
		"eslint-config-prettier": "^9.0.0",
		"eslint-plugin-vue": "^9.8.0",
		"happy-dom": "^13.2.1",
		"jsdom": "^22.1.0",
		"lefthook": "^1.7.1",
		"libphonenumber-js": "^1.10.47",
		"nuxt": "3.10.3",
		"nuxt-svgo": "^3.5.6",
		"playwright": "^1.41.1",
		"prettier": "^2.8.4",
		"prettier-plugin-tailwindcss": "^0.2.3",
		"sass": "^1.64.1",
		"sass-loader": "^13.3.2",
		"stylelint": "^14.16.1",
		"vite-plugin-vue-type-imports": "0.2.5",
		"vitest": "1.6.0",
		"vue": "3.4.21",
		"vue-eslint-parser": "^9.3.2",
		"vue-router": "4.2.5",
		"vue-tsc": "1.8.22"
	},