no-vitest-coverage-reporter-text-only

Disallow test.coverage.reporter configurations that only emit text output.

Rule catalog ID: R051

Targeted pattern scope

vitest.config.*
vitest.workspace.*
vite.config.* when Vitest coverage options are configured
test.coverage.reporter

What this rule reports

This rule reports reporter configurations that resolve to text-only output, such as:

reporter: "text"
reporter: ["text"]

Why this rule exists

Text-only coverage is useful for quick local feedback but weak for CI/tooling integration. Shared config usually benefits from at least one structured reporter (json, lcov, html, etc.).

❌ Incorrect

import { defineConfig } from "vitest/config";

export default defineConfig({
    test: {
        coverage: {
            reporter: ["text"],
        },
    },
});

✅ Correct

import { defineConfig } from "vitest/config";

export default defineConfig({
    test: {
        coverage: {
            reporter: ["text", "json", "html"],
        },
    },
});

Behavior and migration notes

this rule checks static reporter values only
it does not report mixed reporter lists that include non-text outputs

ESLint flat config example

import vite from "@typpi/eslint-plugin-vite";

export default [vite.configs.strict, vite.configs.vitest];

When not to use it

Disable this rule only if your shared workflow intentionally relies on text-only coverage output.

Package documentation

Vitest config reference

Targeted pattern scope​

What this rule reports​

Why this rule exists​

❌ Incorrect​

✅ Correct​

Behavior and migration notes​

ESLint flat config example​

When not to use it​

Package documentation​

Further reading​