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Unified Diff: testing/tools/test_runner.py

Issue 1430623006: One test runner to rule them all. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Created 5 years, 1 month ago
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Index: testing/tools/test_runner.py
diff --git a/testing/tools/test_runner.py b/testing/tools/test_runner.py
new file mode 100644
index 0000000000000000000000000000000000000000..f4751ad1759a1b83019b32f9eaff648fb6e3e0e5
--- /dev/null
+++ b/testing/tools/test_runner.py
@@ -0,0 +1,229 @@
+#!/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 function 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')
+
+ if os.path.exists(original_path) and not os.path.exists(input_path):
+ shutil.copyfile(original_path, pdf_path)
+
+ if not os.path.exists(input_path):
+ return None
+
+ cmd = [sys.executable, self.fixup_path,
+ '--output-dir=' + self.working_dir, input_path]
+ return common.RunCommand(cmd, redirect_output)
+
+
+ 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.IsSuppressed(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')
+ 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.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.test_suppressor = suppressor.Suppressor(finder)
+ 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 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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