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#!/usr/bin/python3
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (C) 2025 Raspberry Pi Ltd
#
# test_convert.py - Test script for libpisp convert utility
#
import argparse
import os
import subprocess
import sys
import tempfile
import shutil
from pathlib import Path
import hashlib
class ConvertTester:
def __init__(self, convert_binary, output_dir=None, input_dir=None, reference_dir=None):
"""Initialize the tester with the path to the convert binary."""
self.convert_binary = convert_binary
self.output_dir = output_dir
self.input_dir = input_dir
self.reference_dir = reference_dir
if not os.path.exists(convert_binary):
raise FileNotFoundError(f"Convert binary not found: {convert_binary}")
# Test cases: (input_file, output_file, input_format, output_format, reference_file)
self.test_cases = [
{
"input_file": "conv_yuv420_4056x3040_4056s.yuv",
"output_file": "out_4056x3050_12168s_rgb888.rgb",
"input_format": "4056:3040:4056:YUV420P",
"output_format": "4056:3040:12168:RGB888",
"reference_file": "ref_4056x3050_12168s_rgb888.rgb"
},
{
"input_file": "conv_800x600_1200s_422_yuyv.yuv",
"output_file": "out_1600x1200_422p.yuv",
"input_format": "800:600:1600:YUYV",
"output_format": "1600:1200:1600:YUV422P",
"reference_file": "ref_1600x1200_422p.yuv"
},
{
"input_file": "conv_rgb888_800x600_2432s.rgb",
"output_file": "out_4000x3000_4032s.yuv",
"input_format": "800:600:2432:RGB888",
"output_format": "4000:3000:0:YUV444P",
"reference_file": "ref_4000x3000_4032s.yuv"
},
# Add more test cases here as needed
]
def run_convert(self, input_file, output_file, input_format, output_format):
"""Run the convert utility with the specified parameters."""
# Use input directory if specified
if self.input_dir:
input_file = os.path.join(self.input_dir, input_file)
# Use output directory if specified
if self.output_dir:
output_file = os.path.join(self.output_dir, output_file)
cmd = [
self.convert_binary,
input_file,
output_file,
"--input-format", input_format,
"--output-format", output_format
]
print(f"Running: {' '.join(cmd)}")
try:
result = subprocess.run(cmd, capture_output=True, text=True, check=True)
print("Convert completed successfully")
return True
except subprocess.CalledProcessError as e:
print(f"Convert failed with exit code {e.returncode}")
print(f"stdout: {e.stdout}")
print(f"stderr: {e.stderr}")
return False
def compare_files(self, file1, file2):
"""Compare two files and return True if they are identical."""
if not os.path.exists(file1):
print(f"Error: File {file1} does not exist")
return False
if not os.path.exists(file2):
print(f"Error: File {file2} does not exist")
return False
# Compare file sizes first
size1 = os.path.getsize(file1)
size2 = os.path.getsize(file2)
if size1 != size2:
print(f"Files have different sizes: {size1} vs {size2}")
return False
# Compare file contents using hash
hash1 = self._file_hash(file1)
hash2 = self._file_hash(file2)
if hash1 == hash2:
print("Files are identical")
return True
else:
print("Files are different")
return False
def _file_hash(self, filepath):
"""Calculate SHA256 hash of a file."""
hash_sha256 = hashlib.sha256()
with open(filepath, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
hash_sha256.update(chunk)
return hash_sha256.hexdigest()
def run_test_case(self, test_case):
"""Run a single test case."""
print(f"\n=== Running test case ===")
print(f"Input file: {test_case['input_file']}")
print(f"Output file: {test_case['output_file']}")
print(f"Input format: {test_case['input_format']}")
print(f"Output format: {test_case['output_format']}")
print(f"Reference file: {test_case['reference_file']}")
# Check if input file exists
input_file = test_case['input_file']
if self.input_dir:
input_file = os.path.join(self.input_dir, test_case['input_file'])
if not os.path.exists(input_file):
print(f"Error: Input file {input_file} does not exist")
return False
# Run the convert utility
success = self.run_convert(
test_case['input_file'],
test_case['output_file'],
test_case['input_format'],
test_case['output_format']
)
if not success:
return False
# Compare with reference file if it exists
reference_file = test_case['reference_file']
if self.reference_dir:
reference_file = os.path.join(self.reference_dir, test_case['reference_file'])
if os.path.exists(reference_file):
print(f"Comparing output with reference file...")
# Use output directory for the generated output file
output_file = test_case['output_file']
if self.output_dir:
output_file = os.path.join(self.output_dir, test_case['output_file'])
return self.compare_files(output_file, reference_file)
else:
print(f"Reference file {reference_file} not found, skipping comparison")
return True
def run_all_tests(self):
"""Run all test cases."""
print(f"Testing convert utility: {self.convert_binary}")
if self.input_dir:
print(f"Input directory: {self.input_dir}")
if self.output_dir:
print(f"Output directory: {self.output_dir}")
if self.reference_dir:
print(f"Reference directory: {self.reference_dir}")
print(f"Number of test cases: {len(self.test_cases)}")
passed = 0
failed = 0
for i, test_case in enumerate(self.test_cases, 1):
print(f"\n--- Test case {i}/{len(self.test_cases)} ---")
if self.run_test_case(test_case):
passed += 1
print("✓ Test PASSED")
else:
failed += 1
print("✗ Test FAILED")
print(f"\n=== Test Summary ===")
print(f"Passed: {passed}")
print(f"Failed: {failed}")
print(f"Total: {len(self.test_cases)}")
return failed == 0
def main():
parser = argparse.ArgumentParser(description="Test script for libpisp convert utility")
parser.add_argument("convert_binary", help="Path to the convert binary")
parser.add_argument("--test-dir", help="Directory containing test files")
parser.add_argument("--in", dest="input_dir", help="Directory containing input files")
parser.add_argument("--out", help="Directory where output files will be written")
parser.add_argument("--ref", help="Directory containing reference files")
args = parser.parse_args()
try:
tester = ConvertTester(args.convert_binary, args.out, args.input_dir, args.ref)
# Change to test directory if specified
if args.test_dir:
if not os.path.exists(args.test_dir):
print(f"Error: Test directory {args.test_dir} does not exist")
return 1
os.chdir(args.test_dir)
print(f"Changed to test directory: {args.test_dir}")
# Create output directory if specified and it doesn't exist
if args.out:
if not os.path.exists(args.out):
os.makedirs(args.out)
print(f"Created output directory: {args.out}")
# Run all tests
success = tester.run_all_tests()
return 0 if success else 1
except FileNotFoundError as e:
print(f"Error: {e}")
return 1
except Exception as e:
print(f"Unexpected error: {e}")
return 1
if __name__ == "__main__":
sys.exit(main())
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