"""PP-01~03: CopybookPreprocessor"""

import sys, os, tempfile
from pathlib import Path
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
from preprocessor import CopybookPreprocessor


def test_expand_found():
    """PP-01: COPY 文件存在时展开"""
    with tempfile.TemporaryDirectory() as tmp:
        cpy = Path(tmp) / "MYCPY.cpy"
        cpy.write_text("01 WS-FIELD PIC 9.")
        p = CopybookPreprocessor(paths=[tmp])
        text = p.expand("       COPY MYCPY.\n")
        assert "WS-FIELD" in text


def test_expand_not_found():
    """PP-02: COPY 不存在 → NOT FOUND"""
    with tempfile.TemporaryDirectory() as tmp:
        p = CopybookPreprocessor(paths=[tmp])
        text = p.expand("       COPY NOTEXIST.\n")
        assert "NOT FOUND" in text


def test_expand_no_copy():
    """PP-03: 无 COPY → 原文"""
    p = CopybookPreprocessor()
    text = p.expand("       MOVE 1 TO A.\n")
    assert "MOVE 1 TO A" in text