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test

The test keyword declares a test: a named block of code that the test runner executes to verify behavior. Tests are excluded from normal builds and are collected by the testing tooling.

Syntax & Example​

test "addition works" {
    let result = add(2, 3);
    assert result == 5;
}

Use Cases​

  • Verifying functions and modules with runnable checks.
  • Grouping assertions under a descriptive test name.
  • Pairing with ignore and expect_fail to control test execution.

See also: Testing.