from __future__ import annotations import pytest from PIL import Image, McIdasImagePlugin from .helper import assert_image_equal_tofile def test_invalid_file() -> None: invalid_file = "Tests/images/flower.jpg" with pytest.raises(SyntaxError): McIdasImagePlugin.McIdasImageFile(invalid_file) def test_valid_file() -> None: # Arrange # https://ghrc.nsstc.nasa.gov/hydro/details/cmx3g8 # https://ghrc.nsstc.nasa.gov/pub/fieldCampaigns/camex3/cmx3g8/browse/ test_file = "Tests/images/cmx3g8_wv_1998.260_0745_mcidas.ara" saved_file = "Tests/images/cmx3g8_wv_1998.260_0745_mcidas.png" # Act with Image.open(test_file) as im: im.load() # Assert assert im.format == "MCIDAS" assert im.mode == "I" assert im.size == (1800, 400) assert_image_equal_tofile(im, saved_file)