Add expected conditions 1827

atest/acceptance/expected_conditions.robot.PROTOTYPE

@@ -0,0 +1,34 @@
+*** Test Cases ***
+# Wait Until Element State Is (Not)
+# Get Element State
+# Element States Should (Not) Be
+
+Check waiting for condition that takes a element
+   Fail
+
+Check waiting for condition that takes a title
+   Fail
+
+Check waiting for condition that takes a url
+   Fail
+   Wait Until    url contains   google
+   # verify took 2 seconds
+
+Check waiting for condition that takes locator and string
+   Wait Until Element State Is     ${condition}    ${locator}   ${string}
+   Wait Until Element State Is     ${condition}    ${element}
+   Wait Until Condition Is         ${condition}    ${target}
+   Wait Until Condition Is         ${condition}    ${whatelse you need for this condition}
+
+
+   Wait Until State Is         number_of_windows_to_be
+   Wait Until Expected Condition Is         number_of_windows_to_be
+   Wait Until Condition Is     number of windows to be   5
+   Wait Until Condition Is     text to be present in element attribute    //some/xpath/to/an/element  href  http://hello
+
+   Wait Until Condition Is     number of windows to be   5    text to be present in element attribute    //some/xpath/to/an/element  href  http://hello
+
+   Wait Until    number of windows to be   5
+   Wait Until    text to be present in element attribute    //some/xpath/to/an/element  href  http://hello   
+   Get Condition
+   Is       number of windows to be   5

atest/acceptance/keywords/expected_conditions.robot

@@ -0,0 +1,52 @@
+*** Settings ***
+Test Setup        Go To Page "javascript/expected_conditions.html"
+Resource          ../resource.robot
+
+*** Test Cases ***
+Wait For Expected Conditions One Argument
+    Title Should Be    Original
+    Click Element    link=delayed change title
+    Wait For Expected Condition    title_is    Delayed
+    Title Should Be    Delayed
+
+Wait For Expected Condition Times out within set timeout
+    [Documentation]  FAIL REGEXP: TimeoutException: Message: Expected Condition not met within set timeout of 0.5*
+    Title Should Be    Original
+    Click Element    link=delayed change title
+    Wait For Expected Condition   title_is  Delayed  timeout=0.5
+
+Wait For Expected Conditions using WebElement as locator
+    Click Button    Change the button state
+    ${dynamic_btn}=  Get WebElement  id:enabledDisabledBtn
+    Wait For Expected Condition  element_to_be_clickable  ${dynamic_btn}
+
+Wait For Expected Conditions Where Condition Written With Spaces
+    Title Should Be    Original
+    Click Element    link=delayed change title
+    Wait For Expected Condition    title is    Delayed
+    Title Should Be    Delayed
+
+Wait For Expected Conditions Where Condition Is Variable
+    ${condition}=  Set Variable  title is
+    Title Should Be    Original
+    Click Element    link=delayed change title
+    Wait For Expected Condition    ${condition}    Delayed
+    Title Should Be    Delayed
+
+Wait For Expected Conditions Where Condition Is Strange Case
+    Click Button    Change the button state
+    ${dynamic_btn}=  Get WebElement  id:enabledDisabledBtn
+    Wait For Expected Condition  EleMENT tO BE cLiCkAbLe  ${dynamic_btn}
+
+Wait For Non Existing Expected Conditions
+    Click Button    Change the button state
+    ${dynamic_btn}=  Get WebElement  id:enabledDisabledBtn
+    Run Keyword And Expect Error   this_is_not_an_expected_con_dition is an unknown expected condition
+    ...  Wait For Expected Condition  this_is not an expected con dition  ${dynamic_btn}
+
+Wait For Expected Conditions When Condition Includes Locator
+    Title Should Be    Original
+    ${byElem}=  Evaluate  ("id","added_btn")
+    Click Element    link:delayed add element
+    Wait For Expected Condition    Presence Of Element Located    ${byElem}
+    Click Element    id:added_btn

atest/resources/html/javascript/dynamic_content.html

@@ -10,10 +10,17 @@
 			container = document.getElementById(target_container);
 			container.appendChild(p);
 		}
+
+		function delayed_title_change() {
+			setTimeout(function(){
+				document.title='Delayed';
+			},600);
+		}
 		</script>
 	</head>
 	<body>
 		<a href="javascript:return false;" onclick="document.title='Changed'; return false;">change title</a><br/>
+		<a href="javascript:return false;" onclick="delayed_title_change(); return false;">delayed change title</a><br/>
 		<a href="javascript:return false;" onclick="add_content('target', 'added content'); return false;">add content</a><br/>
 		<a id="unicode" href="javascript:return false;" onclick="document.title='äää'; return false;">title to ääää</a><br/>
 		<p>

atest/resources/html/javascript/expected_conditions.html

@@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
+		<title>Original</title>
+		<!-- Note the timeouts in the functions are chosen such they constitute
+		     a set with distinct subset sums. That is is a combination of any two
+		     or more were to be executed the total time for that distinct combination
+		     would be unique. This was done so we could do a ALL/AND/OR type of test
+		     and know that with the combination of expected conditions the execution
+		     was successful as the unique time took place. -->
+		<!-- The set we are using is {6,9,11,12,13} -->
+		<!-- (could also use {3,5,6,7} which would reduce total time)-->
+		<script type="text/javascript">
+		function add_content(target_container, content) {
+			p = document.createElement('p');
+			p.appendChild(document.createTextNode(content));
+			container = document.getElementById(target_container);
+			container.appendChild(p);
+		}
+
+		function delayed_button_state() {
+			setTimeout(function() {
+				state_btn = document.getElementById('enabledDisabledBtn')
+				if (state_btn.hasAttribute("disabled")) {
+					state_btn.removeAttribute("disabled")
+					state_btn.value = "Enabled"
+				} else {
+					state_btn.setAttribute("disabled", "")
+					state_btn.value = "Disabled"
+				}
+			},900)
+		}
+		function delayed_title_change() {
+			setTimeout(function(){
+				document.title='Delayed';
+			},600);
+		}
+
+		function delayed_add_element() {
+		    setTimeout(function(){
+		        const newElem = document.createElement("input");
+		        newElem.setAttribute("type", "button");
+		        newElem.setAttribute("id", "added_btn");
+		        newElem.setAttribute("value", "Added Button");
+		        const container = document.getElementById("container");
+		        document.body.insertBefore(newElem, container);
+		    },1100);
+		}
+		</script>
+	</head>
+	<body>
+		<a href="javascript:return false;" onclick="document.title='Changed'; return false;">change title</a><br/>
+		<a href="javascript:return false;" onclick="delayed_title_change(); return false;">delayed change title</a><br/>
+		<a href="javascript:return false;" onclick="delayed_add_element(); return fales;">delayed add element</a><br/>
+		<a href="javascript:return false;" onclick="add_content('target', 'added content'); return false;">add content</a><br/>
+		<a id="unicode" href="javascript:return false;" onclick="document.title='äää'; return false;">title to ääää</a><br/>
+		<p>
+			<input type="radio" name="group" value="title" 
+			onclick="document.title='Changed by Button';" />Change Title<br/>
+			<input type="radio" name="group" value="content" 
+			onclick="add_content('button_target', 'added by button');"/>Add Content<br/>
+        </p>
+        <div id="target">
+		</div>
+		<div id="button_target">
+        </div>
+        <form name=myform>
+            <input type=button value="Change the title" 
+            onClick="if(confirm('Really change the title?'))
+            document.title += ' Changed!';" >
+		</form>
+		<p>
+			<input type=button id=stateChangeBtn value="Change the button state"
+			onClick="delayed_button_state()" />
+			<input type=button id=enabledDisabledBtn value="Disabled"
+			disabled />
+		</p>
+		<p>
+			<div id="container"></div>
+		</p>
+		<p>
+			<form name=titleChanger>
+				<td>
+					<input type=text id=titleChangeTxt value="Enter Title here">
+				</td>
+				<td>
+					<input type=button id=titleChangeBtn value="Set Title" 
+					onClick="document.title = document.getElementById('titleChangeTxt').value;" >
+				</td>
+			</form>
+		</p>
+	</body>
+</html>
+

src/SeleniumLibrary/__init__.py

@@ -35,6 +35,7 @@
     BrowserManagementKeywords,
     CookieKeywords,
     ElementKeywords,
+    ExpectedConditionKeywords,
     FormElementKeywords,
     FrameKeywords,
     JavaScriptKeywords,
@@ -490,6 +491,7 @@ def __init__(
             BrowserManagementKeywords(self),
             CookieKeywords(self),
             ElementKeywords(self),
+            ExpectedConditionKeywords(self),
             FormElementKeywords(self),
             FrameKeywords(self),
             JavaScriptKeywords(self),

src/SeleniumLibrary/errors.py

@@ -37,3 +37,7 @@ class NoOpenBrowser(SeleniumLibraryException):
 
 class PluginError(SeleniumLibraryException):
     pass
+
+
+class UnkownExpectedCondition(SeleniumLibraryException):
+    pass

src/SeleniumLibrary/keywords/__init__.py

@@ -18,6 +18,7 @@
 from .browsermanagement import BrowserManagementKeywords  # noqa
 from .cookie import CookieKeywords  # noqa
 from .element import ElementKeywords  # noqa
+from .expectedconditions import ExpectedConditionKeywords  # noqa
 from .formelement import FormElementKeywords  # noqa
 from .frames import FrameKeywords  # noqa
 from .javascript import JavaScriptKeywords  # noqa

src/SeleniumLibrary/keywords/expectedconditions.py

@@ -0,0 +1,63 @@
+# Copyright 2016-     Robot Framework Foundation
+#
+# 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 string
+from typing import Optional
+
+from SeleniumLibrary.base import LibraryComponent, keyword
+from SeleniumLibrary.errors import UnkownExpectedCondition
+from selenium.webdriver.support.wait import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+
+class ExpectedConditionKeywords(LibraryComponent):
+    @keyword
+    def wait_for_expected_condition(self, condition: string, *args, timeout: Optional[float]=10):
+        """Waits until ``condition`` is true or ``timeout`` expires.
+
+        The condition must be one of selenium's expected condition which
+        can be found within the selenium
+        [https://www.selenium.dev/selenium/docs/api/py/webdriver_support/selenium.webdriver.support.expected_conditions.html#module-selenium.webdriver.support.expected_conditions Python API]
+        documentation. The expected condition can written as snake_case
+        (ex title_is) or it can be space delimited (ex Title Is). Some
+        conditions require additional arguments or ``args`` which should
+        be passed along after the expected condition.
+
+        Fails if the timeout expires before the condition becomes true.
+        The default value is 10 seconds.
+
+        Examples:
+        | `Wait For Expected Condition` | alert_is_present |
+        | `Wait For Expected Condition` |  Title Is  | New Title |
+
+        If the expected condition expects a locator then one can pass
+        as arguments a tuple containing the selenium locator strategies
+        and the locator.
+
+        Example of expected condition expecting locator:
+        | ${byElem}= |  Evaluate  ("id","added_btn")
+        | `Wait For Expected Condition` | Presence Of Element Located | ${byElem}
+        """
+
+        condition = self._parse_condition(condition)
+        wait = WebDriverWait(self.driver, timeout, 0.1)
+        try:
+            c = getattr(EC, condition)
+        except:
+            # ToDo: provide hints as to what is avaialbel or find closet match
+            raise UnkownExpectedCondition(f"{condition} is an unknown expected condition")
+        result = wait.until(c(*args), message="Expected Condition not met within set timeout of " + str(timeout))
+        return result
+
+    def _parse_condition(self, condition: string):
+        parsed = condition.replace(' ','_').lower()
+        return parsed

utest/test/api/test_plugins.py

@@ -22,7 +22,7 @@ def setUpClass(cls):
     def test_no_libraries(self):
         for item in [None, "None", ""]:
             sl = SeleniumLibrary(plugins=item)
-            self.assertEqual(len(sl.get_keyword_names()), 180)
+            self.assertEqual(len(sl.get_keyword_names()), 181)
 
     def test_parse_library(self):
         plugin = "path.to.MyLibrary"

utest/test/keywords/test_expectedconditions.py

@@ -0,0 +1,31 @@
+import unittest
+
+from SeleniumLibrary.keywords import ExpectedConditionKeywords
+
+# Test cases
+
+# Parsing expected condition
+# expect to match ..
+#    element_to_be_clickable
+#    Element To Be Clickable
+#    eLEment TO be ClIcKable
+# expect to not match ..
+#    element__to_be_clickable
+#    elementtobeclickable
+#    element_to_be_clickble
+#    Ice Cream Cone Has Three Scopes
+
+# what about ..?
+#    ${ec_var}
+#    Element\ To\ Be\ Clickable
+#    Element${SPACE}To${SPACE}Be${SPACE}Clickable
+
+class ExpectedConditionKeywords(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.ec_keywords = ExpectedConditionKeywords(None)
+
+    def WorkInProgresstest_parse_condition(self):
+        results = []
+        results.append(self.ec_keywords._parse_condition("Element To Be Clickable"))
+        results.append(self.ec_keywords._parse_condition("eLEment TO be ClIcKable"))