import pytest
from pathlib import Path
from analyzer import is_blurry


def make_test_image(tmp_path, color=(200, 200, 200)):
    from PIL import Image
    img = Image.new("RGB", (100, 100), color=color)
    p = tmp_path / "test.jpg"
    img.save(p)
    return str(p)


def test_solid_color_image_is_blurry(tmp_path):
    path = make_test_image(tmp_path)
    assert is_blurry(path, threshold=100) is True


def test_normal_image_is_not_blurry(tmp_path):
    from PIL import Image, ImageDraw
    img = Image.new("RGB", (100, 100), color=(255, 255, 255))
    draw = ImageDraw.Draw(img)
    for i in range(0, 100, 2):
        draw.line([(i, 0), (i, 100)], fill=(0, 0, 0), width=1)
    p = tmp_path / "sharp.jpg"
    img.save(p)
    assert is_blurry(str(p), threshold=100) is False