eslint-plugin-exception-handling/dist/src/utils/test-file.js

💣 Lints unhandled functions that might throw errors. For JavaScript/TypeScript eslint.

import { ESLint } from "eslint";
import { describe, expect, it } from "vitest";
export function testFile(filename, rules, errors) {
    const lint = new ESLint({ overrideConfigFile: "eslint.config.test.js" });
    const expectLints = errors.reduce((acc, error) => {
        if (!error.messageId)
            return acc;
        if (!acc[error.messageId])
            acc[error.messageId] = 0;
        acc[error.messageId]++;
        return acc;
    }, {});
    const expectedLintsString = Object.entries(expectLints)
        .map(([k, v]) => `${v} '${k}'`)
        .join(", ") || "no error";
    describe(filename, () => {
        it(`should lint ${expectedLintsString}`, async () => {
            const res = await lint.lintFiles([filename]);
            const messages = res[0].messages.filter((m) => m.ruleId && rules.includes(m.ruleId.split("/").at(-1)));
            expect(messages).toEqual(errors.map((lint) => {
                return expect.objectContaining(lint);
            }));
            if (errors.length === 0) {
                expect(messages).toStrictEqual([]);
            }
        });
    });
}