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#!/usr/bin/env python3
# Apache License, Version 2.0
import argparse
import os
import subprocess
import sys
import tempfile
def render_file(filepath):
command = (
BLENDER,
"--background",
"-noaudio",
"--factory-startup",
filepath,
"-E", "CYCLES",
"-o", TEMP_FILE_MASK,
"-F", "PNG",
"-f", "1",
)
try:
output = subprocess.check_output(command)
if VERBOSE:
print(output.decode("utf-8"))
return None
except subprocess.CalledProcessError as e:
if os.path.exists(TEMP_FILE):
os.remove(TEMP_FILE)
if VERBOSE:
print(e.output.decode("utf-8"))
if b"Error: engine not found" in e.output:
return "NO_CYCLES"
elif b"blender probably wont start" in e.output:
return "NO_START"
return "CRASH"
except:
if os.path.exists(TEMP_FILE):
os.remove(TEMP_FILE)
if VERBOSE:
print(e.output.decode("utf-8"))
return "CRASH"
def test_get_name(filepath):
filename = os.path.basename(filepath)
return os.path.splitext(filename)[0]
def verify_output(filepath):
testname = test_get_name(filepath)
dirpath = os.path.dirname(filepath)
reference_dirpath = os.path.join(dirpath, "reference_renders")
reference_image = os.path.join(reference_dirpath, testname + ".png")
if not os.path.exists(reference_image):
return False
command = (
IDIFF,
"-fail", "0.01",
"-failpercent", "1",
reference_image,
TEMP_FILE,
)
try:
subprocess.check_output(command)
return True
except subprocess.CalledProcessError as e:
if VERBOSE:
print(e.output.decode("utf-8"))
return e.returncode == 1
def run_test(filepath):
testname = test_get_name(filepath)
spacer = "." * (32 - len(testname))
print(testname, spacer, end="")
sys.stdout.flush()
error = render_file(filepath)
if not error:
if verify_output(filepath):
print("PASS")
else:
error = "VERIFY"
if error:
print("FAIL", error)
return error
def blend_list(path):
for dirpath, dirnames, filenames in os.walk(path):
for filename in filenames:
if filename.lower().endswith(".blend"):
filepath = os.path.join(dirpath, filename)
yield filepath
def run_all_tests(dirpath):
failed_tests = []
all_files = list(blend_list(dirpath))
all_files.sort()
for filepath in all_files:
error = run_test(filepath)
if error:
if error == "NO_CYCLES":
print("Can't perform tests because Cycles failed to load!")
return False
elif error == "NO_START":
print('Can not perform tests because blender fails to start.',
'Make sure INSTALL target was run.')
return False
elif error == 'VERIFY':
pass
else:
print("Unknown error %r" % error)
testname = test_get_name(filepath)
failed_tests.append(testname)
if failed_tests:
failed_tests.sort()
print("\n\nFAILED tests:")
for test in failed_tests:
print(" ", test)
return False
return True
def create_argparse():
parser = argparse.ArgumentParser()
parser.add_argument("-blender", nargs="+")
parser.add_argument("-testdir", nargs=1)
parser.add_argument("-idiff", nargs=1)
return parser
def main():
parser = create_argparse()
args = parser.parse_args()
global BLENDER, ROOT, IDIFF
global TEMP_FILE, TEMP_FILE_MASK, TEST_SCRIPT
global VERBOSE
BLENDER = args.blender[0]
ROOT = args.testdir[0]
IDIFF = args.idiff[0]
TEMP = tempfile.mkdtemp()
TEMP_FILE_MASK = os.path.join(TEMP, "test")
TEMP_FILE = TEMP_FILE_MASK + "0001.png"
TEST_SCRIPT = os.path.join(os.path.dirname(__file__), "runtime_check.py")
VERBOSE = os.environ.get("BLENDER_VERBOSE") is not None
ok = run_all_tests(ROOT)
# Cleanup temp files and folders
if os.path.exists(TEMP_FILE):
os.remove(TEMP_FILE)
os.rmdir(TEMP)
sys.exit(not ok)
if __name__ == "__main__":
main()
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