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Rslint

    no-conditional-in-test

    Added in v0.8.2

    Configuration

    rslint.config.ts
    import { defineConfig, rstestPlugin } from '@rslint/core';

export default defineConfig([
  rstestPlugin.configs.recommended,
  {
    rules: {
      'rstest/no-conditional-in-test': 'error',
    },
  },
]);

    Rule Details

    Disallows conditional control flow in test bodies. Separate tests make each expected behavior and failure easier to identify.

    Reported forms are if and switch statements, conditional expressions, and the logical operators &&, ||, and ??. Optional chaining is reported as well once allowOptionalChaining is turned off.

    The rule checks test callbacks and functions declared inside them. Conditions used for suite setup or helpers declared outside a test are not reported.

    Incorrect

    test('renders the selected view', () => {
  if (mode === 'compact') {
    expect(render(mode)).toContain('Compact');
  } else {
    expect(render(mode)).toContain('Full');
  }
});

    Correct

    test('renders the compact view', () => {
  expect(render('compact')).toContain('Compact');
});

test('renders the full view', () => {
  expect(render('full')).toContain('Full');
});

    Options

    {
  "rstest/no-conditional-in-test": [
    "error",
    {
      "allowOptionalChaining": false
    }
  ]
}
    OptionTypeDefaultDescription
    allowOptionalChainingbooleantrueAllow optional chaining in test bodies.