Adding clear and find elements by ios predicate string.

appium/webdriver/common/mobileby.py

@@ -16,6 +16,7 @@
 
 
 class MobileBy(By):
+    IOS_PREDICATE = '-ios predicate string'
     IOS_UIAUTOMATION = '-ios uiautomation'
     ANDROID_UIAUTOMATOR = '-android uiautomator'
     ACCESSIBILITY_ID = 'accessibility id'

appium/webdriver/mobilecommand.py

@@ -58,3 +58,4 @@ class MobileCommand(object):
     UPDATE_SETTINGS = 'updateSettings'
     SET_LOCATION = 'setLocation'
     GET_DEVICE_TIME = 'getDeviceTime'
+    CLEAR = 'clear'

appium/webdriver/webdriver.py

@@ -43,6 +43,7 @@ def __init__(self, command_executor='http://127.0.0.1:4444/wd/hub',
 
         # add new method to the `find_by_*` pantheon
         By.IOS_UIAUTOMATION = MobileBy.IOS_UIAUTOMATION
+        By.IOS_PREDICATE = MobileBy.IOS_PREDICATE
         By.ANDROID_UIAUTOMATOR = MobileBy.ANDROID_UIAUTOMATOR
         By.ACCESSIBILITY_ID = MobileBy.ACCESSIBILITY_ID
 
@@ -98,6 +99,28 @@ def find_elements_by_ios_uiautomation(self, uia_string):
         """
         return self.find_elements(by=By.IOS_UIAUTOMATION, value=uia_string)
 
+    def find_element_by_ios_predicate(self, predicate_string):
+        """Find an element by ios predicate string.
+
+        :Args:
+         - predicate_string - The predicate string
+
+        :Usage:
+            driver.find_element_by_ios_predicate('label == "myLabel"')
+        """
+        return self.find_element(by=By.IOS_PREDICATE, value=predicate_string)
+
+    def find_elements_by_ios_predicate(self, predicate_string):
+        """Finds elements by ios predicate string.
+
+        :Args:
+         - predicate_string - The predicate string
+
+        :Usage:
+            driver.find_elements_by_ios_predicate('label == "myLabel"')
+        """
+        return self.find_elements(by=By.IOS_PREDICATE, value=predicate_string)
+
     def find_element_by_android_uiautomator(self, uia_string):
         """Finds element by uiautomator in Android.
 
@@ -829,3 +852,5 @@ def _addCommands(self):
             ('GET', '/session/$sessionId/element/$id/location_in_view')
         self.command_executor._commands[Command.GET_DEVICE_TIME] = \
             ('GET', '/session/$sessionId/appium/device/system_time')
+        self.command_executor._commands[Command.CLEAR] = \
+            ('POST', '/session/$sessionId/element/$id/clear')

appium/webdriver/webelement.py

@@ -41,6 +41,28 @@ def find_elements_by_ios_uiautomation(self, uia_string):
         """
         return self.find_elements(by=By.IOS_UIAUTOMATION, value=uia_string)
 
+    def find_element_by_ios_predicate(self, predicate_string):
+        """Find an element by ios predicate string.
+
+        :Args:
+         - predicate_string - The predicate string
+
+        :Usage:
+            driver.find_element_by_ios_predicate('label == "myLabel"')
+        """
+        return self.find_element(by=By.IOS_PREDICATE, value=predicate_string)
+
+    def find_elements_by_ios_predicate(self, predicate_string):
+        """Finds elements by ios predicate string.
+
+        :Args:
+         - predicate_string - The predicate string
+
+        :Usage:
+            driver.find_elements_by_ios_predicate('label == "myLabel"')
+        """
+        return self.find_elements(by=By.IOS_PREDICATE, value=predicate_string)
+
     def find_element_by_android_uiautomator(self, uia_string):
         """Finds element by uiautomator in Android.
 
@@ -122,3 +144,10 @@ def set_value(self, value):
         }
         self._execute(Command.SET_IMMEDIATE_VALUE, data)
         return self
+
+    def clear(self):
+        """Clears text.
+        """
+        data = {'id': self.id}
+        self._execute(Command.CLEAR, data)
+        return self

test/functional/ios/appium_tests.py

@@ -96,6 +96,26 @@ def test_hide_keyboard_no_key_name(self):
         # currently fails.
         self.assertFalse(el.is_displayed())
 
+    def test_clear(self):
+        # Click text fields
+        self.driver.find_element_by_accessibility_id('TextFields').click()
+
+        # Verify default text
+        def_text = '<enter text>'
+        text = self.driver.find_element_by_accessibility_id('Normal').get_attribute('value')
+        self.assertEqual(text, def_text)
+
+        # Input some text, verify
+        input_text = 'blah'
+        self.driver.find_element_by_accessibility_id('Normal').send_keys(input_text)
+        text = self.driver.find_element_by_accessibility_id('Normal').get_attribute('value')
+        self.assertEqual(text, input_text)
+
+        # Clear text, verify
+        self.driver.find_element_by_accessibility_id('Normal').clear()
+        text = self.driver.find_element_by_accessibility_id('Normal').get_attribute('value')
+        self.assertEqual(text, def_text)
+
 
 if __name__ == "__main__":
     suite = unittest.TestLoader().loadTestsFromTestCase(AppiumTests)

test/functional/ios/find_by_ios_predicate_tests.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import unittest
+
+from appium import webdriver
+import desired_capabilities
+
+
+class FindByIOSPredicateTests(unittest.TestCase):
+    @classmethod
+    def setUpClass(self):
+        desired_caps = desired_capabilities.get_desired_capabilities('UICatalog.app.zip')
+        self.driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)
+
+    @classmethod
+    def tearDownClass(self):
+        self.driver.quit()
+
+    def test_find_element_by_name(self):
+        # Will throw exception if element is not found
+        self.driver.find_element_by_ios_predicate('wdName == "Buttons"')
+
+    def test_find_multiple_element_by_type(self):
+        e = self.driver.find_elements_by_ios_predicate('wdType == "XCUIElementTypeStaticText"')
+        self.assertNotEqual(len(e), 0)
+
+    def test_find_element_by_label(self):
+        # Will throw exception if element is not found
+        self.driver.find_element_by_ios_predicate('label == "TextFields"')
+
+    def test_find_element_by_value(self):
+        # Will throw exception if element is not found
+        self.driver.find_element_by_ios_predicate('wdValue == "Controls"')
+
+    def test_find_element_by_isvisible(self):
+        # Will throw exception if element is not found
+        self.driver.find_element_by_ios_predicate('wdValue == "SearchBar" AND isWDVisible == 1')
+
+        # Should not find any elements
+        e = self.driver.find_elements_by_ios_predicate('wdValue == "SearchBar" AND isWDVisible == 0')
+        self.assertEqual(len(e), 0)
+
+    def test_find_element_by_isenabled(self):
+        # Will throw exception if element is not found
+        self.driver.find_element_by_ios_predicate('wdValue == "SearchBar" AND isWDEnabled == 1')
+
+        # Should not find any elements
+        e = self.driver.find_elements_by_ios_predicate('wdValue == "SearchBar" AND isWDEnabled == 0')
+        self.assertEqual(len(e), 0)
+
+
+if __name__ == "__main__":
+    suite = unittest.TestLoader().loadTestsFromTestCase(FindByIOSPredicateTests)
+    unittest.TextTestRunner(verbosity=2).run(suite)