def testCommit(self):
prefs = shared_prefs.SharedPrefs(self.device, 'com.some.package',
'other_prefs.xml')
self.assertFalse(self.device.FileExists(
prefs.path)) # file does not exist
prefs.Load()
self.assertEquals(len(prefs),
0) # file did not exist, collection is empty
prefs.SetInt('magicNumber', 42)
prefs.SetFloat('myMetric', 3.14)
prefs.SetLong('bigNumner', 6000000000)
prefs.SetStringSet('apps', ['gmail', 'chrome', 'music'])
self.assertFalse(self.device.FileExists(
prefs.path)) # still does not exist
self.assertTrue(prefs.changed)
prefs.Commit()
self.assertTrue(self.device.FileExists(prefs.path)) # should exist now
self.device.KillAll.assert_called_once_with(prefs.package,
as_root=True,
quiet=True)
self.assertFalse(prefs.changed)
prefs = shared_prefs.SharedPrefs(self.device, 'com.some.package',
'other_prefs.xml')
self.assertEquals(len(prefs), 0) # collection is empty before loading
prefs.Load()
self.assertEquals(
prefs.AsDict(), {
'magicNumber': 42,
'myMetric': 3.14,
'bigNumner': 6000000000,
'apps': ['gmail', 'chrome', 'music']
}) # data survived roundtrip
def testAsContextManager_commitAborted(self):
with self.assertRaises(TypeError):
with shared_prefs.SharedPrefs(
self.device, 'com.some.package', 'prefs.xml') as prefs:
prefs.SetBoolean('featureEnabled', True)
prefs.Remove('someHashValue')
prefs.SetString('newString', 'hello')
prefs.SetInt('newString', 123) # oops!
self.assertEquals(self.device.WriteFile.call_args_list, []) # did not write
with shared_prefs.SharedPrefs(
self.device, 'com.some.package', 'prefs.xml') as prefs:
# contents were not modified
self.assertEquals(prefs.AsDict(), self.expected_data)
def testAsContextManager_readAndWrite(self):
with shared_prefs.SharedPrefs(
self.device, 'com.some.package', 'prefs.xml') as prefs:
prefs.SetBoolean('featureEnabled', True)
prefs.Remove('someHashValue')
prefs.SetString('newString', 'hello')
self.assertTrue(self.device.WriteFile.called) # did write
with shared_prefs.SharedPrefs(
self.device, 'com.some.package', 'prefs.xml') as prefs:
# changes persisted
self.assertTrue(prefs.GetBoolean('featureEnabled'))
self.assertFalse(prefs.HasProperty('someHashValue'))
self.assertEquals(prefs.GetString('newString'), 'hello')
self.assertTrue(prefs.HasProperty('databaseVersion')) # still there
def testAsContextManager_onlyReads(self):
with shared_prefs.SharedPrefs(self.device, 'com.some.package',
'prefs.xml') as prefs:
self.assertEquals(prefs.AsDict(),
self.expected_data) # loaded and ready
self.assertEquals(self.device.WriteFile.call_args_list,
[]) # did not write
def testLoad(self):
prefs = shared_prefs.SharedPrefs(self.device, 'com.some.package',
'prefs.xml')
self.assertEquals(len(prefs), 0) # collection is empty before loading
prefs.Load()
self.assertEquals(len(prefs), len(self.expected_data))
self.assertEquals(prefs.AsDict(), self.expected_data)
self.assertFalse(prefs.changed)
def testClear(self):
prefs = shared_prefs.SharedPrefs(self.device, 'com.some.package',
'prefs.xml')
prefs.Load()
self.assertEquals(prefs.AsDict(), self.expected_data)
self.assertFalse(prefs.changed)
prefs.Clear()
self.assertEquals(len(prefs), 0) # collection is empty now
self.assertTrue(prefs.changed)
def testPropertyType(self):
prefs = shared_prefs.SharedPrefs(self.device, 'com.some.package',
'prefs.xml')
prefs.SetInt('myValue', 444)
self.assertEquals(prefs.PropertyType('myValue'), 'int')
with self.assertRaises(TypeError):
prefs.GetString('myValue')
with self.assertRaises(TypeError):
prefs.SetString('myValue', 'hello')
def testPropertyLifetime(self):
prefs = shared_prefs.SharedPrefs(self.device, 'com.some.package',
'prefs.xml')
self.assertEquals(len(prefs), 0) # collection is empty before loading
prefs.SetInt('myValue', 444)
self.assertEquals(len(prefs), 1)
self.assertEquals(prefs.GetInt('myValue'), 444)
self.assertTrue(prefs.HasProperty('myValue'))
prefs.Remove('myValue')
self.assertEquals(len(prefs), 0)
self.assertFalse(prefs.HasProperty('myValue'))
with self.assertRaises(KeyError):
prefs.GetInt('myValue')