added strategy for XCUI iOS10

appium/webdriver/common/mobileby.py

@@ -19,3 +19,4 @@ class MobileBy(By):
     IOS_UIAUTOMATION = '-ios uiautomation'
     ANDROID_UIAUTOMATOR = '-android uiautomator'
     ACCESSIBILITY_ID = 'accessibility id'
+    IOS_PREDICATE_STRING = '-ios predicate string'

appium/webdriver/webdriver.py

@@ -45,6 +45,7 @@ def __init__(self, command_executor='http://127.0.0.1:4444/wd/hub',
         By.IOS_UIAUTOMATION = MobileBy.IOS_UIAUTOMATION
         By.ANDROID_UIAUTOMATOR = MobileBy.ANDROID_UIAUTOMATOR
         By.ACCESSIBILITY_ID = MobileBy.ACCESSIBILITY_ID
+        By.IOS_PREDICATE_STRING = MobileBy.IOS_PREDICATE_STRING
 
     @property
     def contexts(self):
@@ -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_string(self, predicate_string):
+        """Finds an element by predicate string in iOS.
+
+        :Args:
+         - predicate_string - ????
+
+        :Usage:
+            driver.find_element_by_predicate_string('?????')
+        """
+        return self.find_element(by=By.IOS_PREDICATE_STRING, value=predicate_string)
+
+    def find_elements_by_ios_predicate_string(self, predicate_string):
+        """Finds elements by predicate string in iOS.
+
+        :Args:
+         - predicate_string - ????
+
+        :Usage:
+            driver.find_element_by_predicate_string('?????')
+        """
+        return self.find_elements(by=By.IOS_PREDICATE_STRING, value=predicate_string)
+
     def find_element_by_android_uiautomator(self, uia_string):
         """Finds element by uiautomator in Android.
 

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_string(self, predicate_string):
+        """Finds an element by predicate string in iOS.
+
+        :Args:
+         - predicate_string - ????
+
+        :Usage:
+            driver.find_element_by_predicate_string('?????')
+        """
+        return self.find_element(by=By.IOS_PREDICATE_STRING, value=predicate_string)
+
+    def find_elements_by_ios_predicate_string(self, predicate_string):
+        """Finds elements by predicate string in iOS.
+
+        :Args:
+         - predicate_string - ????
+
+        :Usage:
+            driver.find_element_by_predicate_string('?????')
+        """
+        return self.find_elements(by=By.IOS_PREDICATE_STRING, value=predicate_string)
+
     def find_element_by_android_uiautomator(self, uia_string):
         """Finds element by uiautomator in Android.
 

test/functional/ios/find_by_predicatestring_tests.py

@@ -0,0 +1,34 @@
+#!/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 FindByPredicateStringTests(unittest.TestCase):
+    def setUp(self):
+        desired_caps = desired_capabilities.get_desired_capabilities('UICatalog.app.zip')
+        self.driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)
+
+    def tearDown(self):
+        self.driver.quit()
+
+    def test_find_single_element(self):
+        pass
+
+if __name__ == "__main__":
+    suite = unittest.TestLoader().loadTestsFromTestCase(FindByPredicateStringTests)
+    unittest.TextTestRunner(verbosity=2).run(suite)