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#!/usr/bin/env python
#
# Copyright (c) 2011-2025, Ryan Galloway (ryan@rsgalloway.com)
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# - Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# - Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# - Neither the name of the software nor the names of its contributors
# may be used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
__doc__ = """
Contains tests for the sdiff module.
"""
import json
import os
import subprocess
import tempfile
import pytest
import pyseq
from pyseq.sdiff import diff_sequences
project_root = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))
if os.name == "nt":
sdiff_bin = os.path.join(project_root, "bin", "sdiff.bat")
else:
sdiff_bin = os.path.join(project_root, "bin", "sdiff")
@pytest.fixture
def diff_test_sequences():
"""Create two temporary directories with different sequences for testing."""
with tempfile.TemporaryDirectory() as dir1, tempfile.TemporaryDirectory() as dir2:
# create: foo.0001-0003.exr
for i in range(1, 4):
path = os.path.join(dir1, f"foo.{i:04d}.exr")
with open(path, "wb") as f:
f.write(b"dummy A\n")
# create: bar.0001-0002.exr (diff head + 1 missing frame)
for i in range(1, 3):
path = os.path.join(dir2, f"bar.{i:04d}.exr")
with open(path, "wb") as f:
f.write(b"dummy B\n")
seq1 = pyseq.get_sequences(os.listdir(dir1))[0]
seq2 = pyseq.get_sequences(os.listdir(dir2))[0]
yield dir1, seq1, dir2, seq2
def test_diff_sequences(diff_test_sequences):
"""Test the diff_sequences function."""
_, seq1, _, seq2 = diff_test_sequences
diff = diff_sequences(seq1, seq2)
assert diff["head"][0] != diff["head"][1]
assert diff["length"][0] == 3
assert diff["length"][1] == 2
# assert 3 in diff["missing"]["b_only"]
def test_sdiff_cli_text(diff_test_sequences):
"""Test the sdiff CLI with text output."""
dir1, _, dir2, _ = diff_test_sequences
pattern1 = os.path.join(dir1, "foo.%04d.exr")
pattern2 = os.path.join(dir2, "bar.%04d.exr")
result = subprocess.run(
[sdiff_bin, pattern1, pattern2],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
text=True,
)
assert result.returncode == 0
assert "Head mismatch" in result.stdout
assert "Length mismatch" in result.stdout
def test_sdiff_cli_json(diff_test_sequences):
"""Test the sdiff CLI with JSON output."""
dir1, _, dir2, _ = diff_test_sequences
pattern1 = os.path.join(dir1, "foo.%04d.exr")
pattern2 = os.path.join(dir2, "bar.%04d.exr")
result = subprocess.run(
[sdiff_bin, "--json", pattern1, pattern2],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
text=True,
)
assert result.returncode == 0
data = json.loads(result.stdout)
assert data["head"][0].startswith("foo")
assert data["head"][1].startswith("bar")
assert data["length"] == [3, 2]
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