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#!/usr/bin/env python
# Copyright 2015 The PDFium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import cStringIO
import functools
import multiprocessing
import optparse
import os
import re
import shutil
import subprocess
import sys
import common
import pngdiffer
import suppressor
class KeyboardInterruptError(Exception): pass
# Nomenclature:
# x_root - "x"
# x_filename - "x.ext"
# x_path - "path/to/a/b/c/x.ext"
# c_dir - "path/to/a/b/c"
def TestOneFileParallel(this, test_case):
"""Wrapper to call GenerateAndTest() and redirect output to stdout."""
try:
old_stdout = sys.stdout
old_stderr = sys.stderr
sys.stdout = cStringIO.StringIO()
sys.stderr = sys.stdout
input_filename, source_dir = test_case
result = this.GenerateAndTest(input_filename, source_dir, True);
output = sys.stdout
sys.stdout = old_stdout
sys.stderr = old_stderr
return (result, output.getvalue(), input_filename, source_dir)
except KeyboardInterrupt:
raise KeyboardInterruptError()
class TestRunner:
def __init__(self, dirname):
self.test_dir = dirname
def GenerateAndTest(self, input_filename, source_dir, redirect_output=False):
input_root, _ = os.path.splitext(input_filename)
expected_txt_path = os.path.join(source_dir, input_root + '_expected.txt')
pdf_path = os.path.join(self.working_dir, input_root + '.pdf')
# Remove any existing generated images from previous runs.
actual_images = self.image_differ.GetActualFiles(input_filename, source_dir,
self.working_dir)
for image in actual_images:
if os.path.exists(image):
os.remove(image)
sys.stdout.flush()
raised_exception = self.Generate(source_dir, input_filename, input_root,
pdf_path, redirect_output)
if raised_exception != None:
print "FAILURE: " + input_filename + "; " + str(raised_exception)
return False
if os.path.exists(expected_txt_path):
raised_exception = self.TestText(input_root, expected_txt_path, pdf_path,
redirect_output)
else:
raised_exception = self.TestPixel(pdf_path, redirect_output)
if raised_exception != None:
print "FAILURE: " + input_filename + "; " + str(raised_exception)
return False
if len(actual_images):
if self.image_differ.HasDifferences(input_filename, source_dir,
self.working_dir, redirect_output):
return False
return True
def Generate(self, source_dir, input_filename, input_root, pdf_path,
redirect_output):
original_path = os.path.join(source_dir, input_filename)
input_path = os.path.join(source_dir, input_root + '.in')
txt_path = os.path.join(self.working_dir, input_root + '.txt')
if not os.path.exists(input_path):
if os.path.exists(original_path):
shutil.copyfile(original_path, pdf_path)
return None
sys.stdout.flush()
subprocess.check_call(
[sys.executable, self.fixup_path, '--output-dir=' + self.working_dir,
input_path])
with open(txt_path, 'w') as outfile:
# Add Dr. Memory wrapper if exists.
cmd = common.DrMemoryWrapper(self.drmem_wrapper, input_root)
cmd.extend([self.pdfium_test_path, pdf_path])
ret = common.RunCommandToFile(cmd, outfile)
return ret
def TestText(self, input_root, expected_txt_path, pdf_path, redirect_output):
txt_path = os.path.join(self.working_dir, input_root + '.txt')
with open(txt_path, 'w') as outfile:
subprocess.check_call([self.pdfium_test_path, pdf_path], stdout=outfile)
cmd = [sys.executable, self.text_diff_path, expected_txt_path, txt_path]
return common.RunCommand(cmd, redirect_output)
def TestPixel(self, pdf_path, redirect_output):
return common.RunCommand(
[self.pdfium_test_path, '--png', pdf_path], redirect_output)
def HandleResult(self, input_filename, input_path, result):
if self.test_suppressor.IsResultSuppressed(input_filename):
if result:
self.surprises.append(input_path)
else:
if not result:
self.failures.append(input_path)
def Run(self):
parser = optparse.OptionParser()
parser.add_option('--build-dir', default=os.path.join('out', 'Debug'),
help='relative path from the base source directory')
parser.add_option('-j', default=multiprocessing.cpu_count(),
dest='num_workers', type='int',
help='run NUM_WORKERS jobs in parallel')
parser.add_option('--wrapper', default='', dest="wrapper",
help='wrapper for running test under Dr. Memory')
options, args = parser.parse_args()
finder = common.DirectoryFinder(options.build_dir)
self.fixup_path = finder.ScriptPath('fixup_pdf_template.py')
self.text_diff_path = finder.ScriptPath('text_diff.py')
self.drmem_wrapper = options.wrapper
self.source_dir = finder.TestingDir()
if self.test_dir != 'corpus':
test_dir = finder.TestingDir(os.path.join('resources', self.test_dir))
else:
test_dir = finder.TestingDir(self.test_dir)
self.pdfium_test_path = finder.ExecutablePath('pdfium_test')
if not os.path.exists(self.pdfium_test_path):
print "FAILURE: Can't find test executable '%s'" % self.pdfium_test_path
print "Use --build-dir to specify its location."
return 1
self.working_dir = finder.WorkingDir(os.path.join('testing', self.test_dir))
if not os.path.exists(self.working_dir):
os.makedirs(self.working_dir)
self.feature_string = subprocess.check_output([self.pdfium_test_path,
'--show-config'])
self.test_suppressor = suppressor.Suppressor(finder, self.feature_string)
self.image_differ = pngdiffer.PNGDiffer(finder)
walk_from_dir = finder.TestingDir(test_dir);
test_cases = []
input_file_re = re.compile('^[a-zA-Z0-9_.]+[.](in|pdf)$')
if len(args):
for file_name in args:
file_name.replace(".pdf", ".in")
input_path = os.path.join(walk_from_dir, file_name)
if not os.path.isfile(input_path):
print "Can't find test file '%s'" % file_name
return 1
test_cases.append((os.path.basename(input_path),
os.path.dirname(input_path)))
else:
for file_dir, _, filename_list in os.walk(walk_from_dir):
for input_filename in filename_list:
if input_file_re.match(input_filename):
input_path = os.path.join(file_dir, input_filename)
if not self.test_suppressor.IsExecutionSuppressed(input_path):
if os.path.isfile(input_path):
test_cases.append((input_filename, file_dir))
self.failures = []
self.surprises = []
if options.num_workers > 1 and not len(args):
try:
pool = multiprocessing.Pool(options.num_workers)
worker_func = functools.partial(TestOneFileParallel, self)
worker_results = pool.imap(worker_func, test_cases)
for worker_result in worker_results:
result, output, input_filename, source_dir = worker_result
input_path = os.path.join(source_dir, input_filename)
sys.stdout.write(output)
self.HandleResult(input_filename, input_path, result)
except KeyboardInterrupt:
pool.terminate()
finally:
pool.close()
pool.join()
else:
for test_case in test_cases:
input_filename, input_file_dir = test_case
result = self.GenerateAndTest(input_filename, input_file_dir)
self.HandleResult(input_filename,
os.path.join(input_file_dir, input_filename), result)
if self.surprises:
self.surprises.sort()
print '\n\nUnexpected Successes:'
for surprise in self.surprises:
print surprise;
if self.failures:
self.failures.sort()
print '\n\nSummary of Failures:'
for failure in self.failures:
print failure
return 1
return 0
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