import subprocess
import sys
from pathlib import Path

import pytest

import matplotlib as mpl
from matplotlib import pyplot as plt


def test_pyplot_up_to_date():
    gen_script = Path(mpl.__file__).parents[2] / "tools/boilerplate.py"
    if not gen_script.exists():
        pytest.skip("boilerplate.py not found")
    orig_contents = Path(plt.__file__).read_text()
    try:
        subprocess.run([sys.executable, str(gen_script)], check=True)
        new_contents = Path(plt.__file__).read_text()
        assert orig_contents == new_contents
    finally:
        Path(plt.__file__).write_text(orig_contents)


def test_pyplot_box():
    fig, ax = plt.subplots()
    plt.box(False)
    assert not ax.get_frame_on()
    plt.box(True)
    assert ax.get_frame_on()
    plt.box()
    assert not ax.get_frame_on()
    plt.box()
    assert ax.get_frame_on()


def test_stackplot_smoke():
    # Small smoke test for stackplot (see #12405)
    plt.stackplot([1, 2, 3], [1, 2, 3])