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Rslint

    no-conditional-expect

    Unreleased

    Configuration

    PresetConfigured Value
    ✅ rstestPlugin.configs.recommended"error"
    rslint.config.ts
    import { defineConfig, rstestPlugin } from '@rslint/core';

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

    Rule Details

    Disallow calling Rstest expect APIs conditionally. When an assertion only runs on one branch, the test can pass without executing that assertion.

    Examples of incorrect code:

    test("loads user", () => {
  if (user) {
    expect(user.name).toBe("Alice");
  }
});

test("rejects", async () => {
  await request().catch((error) => {
    expect(error).toBeInstanceOf(Error);
  });
});

test("uses local expect", ({ expect }) => {
  ready && expect(value).toBeDefined();
});

    The rule recognizes Rstest APIs from globals, @rstest/core, import.meta.rstest, test context expect, Browser Mode expect.element, and @rstest/playwright.

    Examples of correct code:

    test("loads user", () => {
  expect(user).toBeDefined();
  expect(user?.name).toBe("Alice");
});

test("rejects", async () => {
  await expect(request()).rejects.toThrow();
});

test("prepares conditionally", () => {
  if (mode === "a") {
    setupA();
  } else {
    setupB();
  }

  expect(result).toBeDefined();
});

    The rule has no options and does not provide an automatic fix.