testCaseNameDuplicates

Reports test cases that have the same name as a previous test case.

✅ This rule is included in the flint logical presets.

When writing tests for lint rules, it’s possible to accidentally give the same name to multiple test cases. Doing so makes it harder to identify failing tests in test log output.

Examples

❌ Incorrect

ruleTester.describe(rule, {
  valid: [
    { code: "a", name: "test case 1" },
    { code: "b", name: "test case 1" },
  ],
});

ruleTester.describe(rule, {
  invalid: [
    {
      code: "a",
      name: "test case 1",
      snapshot: "...",
    },
    {
      code: "b",
      name: "test case 1",
      snapshot: "...",
    },
  ],
});

✅ Correct

ruleTester.describe(rule, {
  valid: [
    { code: "a", name: "test case 1" },
    { code: "b", name: "test case 2" },
  ],
});

ruleTester.describe(rule, {
  invalid: [
    {
      code: "a",
      name: "test case 1",
      snapshot: "...",
    },
    {
      code: "b",
      name: "test case 2",
      snapshot: "...",
    },
  ],
});

Options

This rule is not configurable.

Equivalents in Other Linters

• ESLint: eslint-plugin-eslint-plugin/unique-test-case-names