Language

Testing

Zornux has a built-in testing framework. Write test blocks with expect assertions that read like sentences, and run them with zornux test.

Writing a test

zornux

test "adds two numbers"
    expect 2 + 3 to equal 5
end

test "text can be uppercased"
    expect uppercase("hello") to equal "HELLO"
end

Assertions

Assertion	Passes when…
`expect value to equal expected`	Values are equal.
`expect value to not equal expected`	Values differ.
`expect value to be true`	The value is true.
`expect value to be false`	The value is false.
`expect value to be nothing`	The value is nothing.
`expect value to contain item`	A list or text contains the item.
`expect value to be greater than n`	A number is larger.
`expect value to be less than n`	A number is smaller.
`expect expression to throw`	The expression raises an error.

zornux

expect length(["a", "b"]) to equal 2
expect "hello" to contain "ell"
expect 10 to be greater than 5
expect 1 / 0 to throw

Running tests

bash

zornux test                 # run the current project's tests
zornux test file.zx         # a single file
zornux test --filter math   # only tests whose name contains "math"
zornux test --json          # machine-readable report
zornux test --time-limit 20000  # per-test time budget in ms (default 5000)

Per-test time limit

Each test runs under a time limit — 5000 ms by default — so a runaway test can't hang the suite. Raise it with --time-limit <ms> when a heavy determinism or parity test legitimately needs longer.

text

Running 3 tests

✓ adds two numbers
✓ text can be uppercased
✗ rejects bad input
    Expected 5, but got 4.

3 tests, 2 passed, 1 failed

Isolated and consistent

Each test runs as its own fresh program, so local state never leaks between tests, while module-level declarations stay available.

Tests work across modules and packages, and run under a security identity (--identity / --role).