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#!/usr/bin/env python
# Copyright (c) 2016 The Chromium 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 contextlib
import os
import unittest
from systrace import decorators
from systrace import run_systrace
from systrace import update_systrace_trace_viewer
from systrace import util
TEST_DIR = os.path.join(os.path.dirname(__file__), '..', 'test_data')
COMPRESSED_ATRACE_DATA = os.path.join(TEST_DIR, 'compressed_atrace_data.txt')
DECOMPRESSED_ATRACE_DATA = os.path.join(TEST_DIR,
'decompressed_atrace_data.txt')
NON_EXISTENT_DATA = os.path.join(TEST_DIR, 'THIS_FILE_DOES_NOT_EXIST.txt')
class AtraceFromFileAgentTest(unittest.TestCase):
@decorators.HostOnlyTest
def test_from_file(self):
update_systrace_trace_viewer.update(force_update=True)
self.assertTrue(os.path.exists(
update_systrace_trace_viewer.SYSTRACE_TRACE_VIEWER_HTML_FILE))
output_file_name = util.generate_random_filename_for_test()
try:
# use from-file to create a specific expected output
run_systrace.main_impl(['./run_systrace.py',
'--from-file',
COMPRESSED_ATRACE_DATA,
'-o',
output_file_name])
# and verify file contents
with contextlib.nested(open(output_file_name, 'r'),
open(DECOMPRESSED_ATRACE_DATA, 'r')) as (f1, f2):
full_trace = f1.read()
expected_contents = f2.read()
self.assertTrue(expected_contents in full_trace)
except:
raise
finally:
os.remove(update_systrace_trace_viewer.SYSTRACE_TRACE_VIEWER_HTML_FILE)
if os.path.exists(output_file_name):
os.remove(output_file_name)
@decorators.HostOnlyTest
def test_default_output_filename(self):
update_systrace_trace_viewer.update(force_update=True)
self.assertTrue(os.path.exists(
update_systrace_trace_viewer.SYSTRACE_TRACE_VIEWER_HTML_FILE))
output_file_name = os.path.join(TEST_DIR, 'compressed_atrace_data.html')
try:
# use from-file to create a specific expected output
run_systrace.main_impl(['./run_systrace.py',
'--from-file',
COMPRESSED_ATRACE_DATA])
# and verify file contents
with contextlib.nested(open(output_file_name, 'r'),
open(DECOMPRESSED_ATRACE_DATA, 'r')) as (f1, f2):
full_trace = f1.read()
expected_contents = f2.read()
self.assertTrue(expected_contents in full_trace)
except:
raise
finally:
os.remove(update_systrace_trace_viewer.SYSTRACE_TRACE_VIEWER_HTML_FILE)
if os.path.exists(output_file_name):
os.remove(output_file_name)
@decorators.HostOnlyTest
def test_missing_file(self):
try:
run_systrace.main_impl(['./run_systrace.py',
'--from-file',
NON_EXISTENT_DATA])
self.fail('should not get here')
except IOError:
pass
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