backend/test/eslint-config.cjs

const { ESLint } = require('eslint');
const assert = require('node:assert/strict');
const { test } = require('node:test');

const eslint = new ESLint();

// Protect the quality gate's file scopes when configs or plugin versions change.
test('typed application code enforces async and unsafe-type checks', async () => {
  const [result] = await eslint.lintText(
    'export const unsafe: any = 1; Promise.resolve(unsafe);',
    { filePath: 'src/main.ts' },
  );
  const rules = new Set(result.messages.map(({ ruleId }) => ruleId));
  assert.ok(rules.has('@typescript-eslint/no-explicit-any'));
  assert.ok(rules.has('@typescript-eslint/no-floating-promises'));
});

test('framework and runtime rules reach their intended files', async () => {
  const app = await eslint.calculateConfigForFile('src/main.ts');
  const spec = await eslint.calculateConfigForFile('test/app.e2e-spec.ts');
  const script = await eslint.calculateConfigForFile('scripts/generate-openapi.cjs');
  const config = await eslint.calculateConfigForFile('eslint.config.mjs');
  assert.equal(app.rules['@darraghor/nestjs-typed/validation-pipe-should-use-forbid-unknown'][0], 2);
  assert.equal(spec.rules['jest/no-focused-tests'][0], 2);
  assert.equal(app.rules['jest/no-focused-tests'], undefined);
  assert.equal(app.languageOptions.globals.expect, undefined);
  assert.equal(config.languageOptions.globals.require, 'off');
  for (const profile of [app, spec, script, config]) {
    assert.equal(profile.rules['n/no-deprecated-api'][0], 2);
    assert.equal(profile.rules['security/detect-eval-with-expression'][0], 1);
    assert.equal(profile.rules['regexp/no-super-linear-backtracking'][0], 2);
    assert.equal(profile.rules['sonarjs/cognitive-complexity'][0], 2);
    assert.equal(profile.rules['import-x/no-unresolved'][0], 2);
    assert.equal(profile.rules['perfectionist/sort-imports'][0], 2);
    assert.equal(profile.rules['@stylistic/semi'][0], 2);
  }
});

test('focused tests are rejected and generated code is excluded', async () => {
  const [result] = await eslint.lintText(
    'it.only(\'example\', () => { expect(1).toBe(1); });',
    { filePath: 'test/app.e2e-spec.ts' },
  );
  assert.ok(result.messages.some(({ ruleId }) => ruleId === 'jest/no-focused-tests'));
  assert.ok(await eslint.isPathIgnored('generated/prisma/client.ts'));
  assert.ok(await eslint.isPathIgnored('dist/src/main.js'));
});

test('numeric literals require names, including previously ignored numbers and bigints', async () => {
  const literals = [-60, -24, -10, -2, -1, 0, 1, 2, 10, 24, 60].map(String);
  for (const literal of [...literals, ...literals.map((value) => `${value}n`)]) {
    const [inline] = await eslint.lintText(
      `export function value() { return ${literal}; }`,
      { filePath: 'src/main.ts' },
    );
    assert.ok(inline.messages.some(({ ruleId }) => ruleId === '@typescript-eslint/no-magic-numbers'), literal);
    const [named] = await eslint.lintText(
      `const boundary = ${literal}; export function value() { return boundary; }`,
      { filePath: 'src/main.ts' },
    );
    assert.ok(!named.messages.some(({ ruleId }) => ruleId === '@typescript-eslint/no-magic-numbers'), literal);
  }
});

// Single-use codes must be caught too; fixture literals remain independent wire assertions.
test('machine codes require enum members without banning ordinary text or Prisma selects', async () => {
  const eslint = new ESLint();
  const filePath = 'src/main.ts';
  for (const code of ['export function check(code: string) { return code === "one-off-code"; }', 'export const result = `MOEX_UNAVAILABLE`;', 'export const result = { code: "one-off-code" };', 'export const result = { "errorCode": "one-off-code" };', 'export const result = { code: `dynamic-${Date.now()}` };', 'export const result = "MOEX_UNAVAILABLE";', 'export const result = ["INSTRUMENT_ID_TYPE_FIGI"];', 'export const result = { OPERATION_TYPE_COUPON: "income" };']) {
    const [result] = await eslint.lintText(code, { filePath });
    assert.equal(result.fatalErrorCount, 0, code);
    assert.ok(result.messages.some(({ ruleId }) => ruleId === 'no-restricted-syntax'), code);
  }
  for (const code of [
    'enum Code { Unavailable = "MOEX_UNAVAILABLE" } export const result = { code: Code.Unavailable };',
    'export const select = { code: true, errorCode: true };',
    'export const label = "Please try again"; export const key = "JWT_SECRET";',
  ]) {
    const [result] = await eslint.lintText(code, { filePath });
    assert.equal(result.fatalErrorCount, 0, code);
    assert.ok(!result.messages.some(({ ruleId }) => ruleId === 'no-restricted-syntax'), code);
  }
  const [fixture] = await eslint.lintText('export const result = { code: "MOEX_UNAVAILABLE" };', { filePath: 'src/integrations/moex/moex.client.spec.ts' });
  assert.ok(!fixture.messages.some(({ ruleId }) => ruleId === 'no-restricted-syntax'));
  const [comparison] = await eslint.lintText('enum Code { Ready = "ready" } export function check(code: Code) { return code === "ready"; }', { filePath });
  assert.ok(comparison.messages.some(({ ruleId }) => ruleId === '@typescript-eslint/no-unsafe-enum-comparison'));
});