import unittest

from crowbar_reference_compiler import compile_to_ssa, parse_header, parse_implementation, scan


class TestHelloWorld(unittest.TestCase):
    def test_ssa(self):
        code = r"""
include "stdio.hro";

int main() {
    printf("Hello, world!\n");
    return 0;
}
"""
        tokens = scan(code)
        parse_tree = parse_implementation(tokens)
        actual_ssa = compile_to_ssa(parse_tree)
        expected_ssa = r"""
data $data0 = { b "Hello, world!\n", b 0 }

export function w $main() {
@start
    call $printf(l $data0, ...)
    ret 0
}
""".strip()
        self.assertEqual(expected_ssa, actual_ssa)


if __name__ == '__main__':
    unittest.main()