From 0945dd6ba483d3ff2320dfe38cc54217e5487c95 Mon Sep 17 00:00:00 2001
From: John Richardson <john.richardson@mobica.com>
Date: Tue, 2 Aug 2016 16:21:47 +0100
Subject: [PATCH] Dump hierarchy view on error
Dump window hierarchy view from uiautomator to a file when WA fails
during execution. Note: the xml file are pre-formatted after dump.
Implementation specific to android.device.
---
wlauto/common/android/device.py | 12 ++++++++++++
wlauto/core/execution.py | 9 +++++++++
2 files changed, 21 insertions(+)
diff --git a/wlauto/common/android/device.py b/wlauto/common/android/device.py
index a269652a..c4e65382 100644
--- a/wlauto/common/android/device.py
+++ b/wlauto/common/android/device.py
@@ -22,6 +22,7 @@ import tempfile
import shutil
import threading
import json
+import xml.dom.minidom
from subprocess import CalledProcessError
from wlauto.core.extension import Parameter
@@ -616,6 +617,17 @@ class AndroidDevice(BaseLinuxDevice): # pylint: disable=W0223
self.pull_file(on_device_file, filepath)
self.delete_file(on_device_file)
+ def capture_view_hierachy(self, filepath):
+ """Captures the current view hierarchy into the specified file in a XML format."""
+ on_device_file = self.path.join(self.working_directory, 'screen_capture.xml')
+ self.execute('uiautomator dump {}'.format(on_device_file))
+ self.pull_file(on_device_file, filepath)
+ self.delete_file(on_device_file)
+
+ parsed_xml = xml.dom.minidom.parse(filepath)
+ with open(filepath, 'w') as f:
+ f.write(parsed_xml.toprettyxml())
+
def is_screen_on(self):
"""Returns ``True`` if the device screen is currently on, ``False`` otherwise."""
output = self.execute('dumpsys power')
diff --git a/wlauto/core/execution.py b/wlauto/core/execution.py
index 652816fc..659c424f 100644
--- a/wlauto/core/execution.py
+++ b/wlauto/core/execution.py
@@ -731,6 +731,13 @@ class Runner(object):
filepath = os.path.join(settings.output_directory, filename)
self.device.capture_screen(filepath)
+ def _take_uiautomator_dump(self, filename):
+ if self.context.output_directory:
+ filepath = os.path.join(self.context.output_directory, filename)
+ else:
+ filepath = os.path.join(settings.output_directory, filename)
+ self.device.capture_view_hierachy(filepath)
+
@contextmanager
def _handle_errors(self, action, on_error_status=IterationResult.FAILED):
try:
@@ -746,6 +753,8 @@ class Runner(object):
self.current_job.result.add_event(str(we))
try:
self._take_screenshot('error.png')
+ if self.device.platform == 'android':
+ self._take_uiautomator_dump('error.xml')
except Exception, e: # pylint: disable=W0703
# We're already in error state, so the fact that taking a
# screenshot failed is not surprising...