Exemple #1
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def wait_for_ready_state_complete(driver, timeout=settings.LARGE_TIMEOUT):
    """
    The DOM (Document Object Model) has a property called "readyState".
    When the value of this becomes "complete", page resources are considered
      fully loaded (although AJAX and other loads might still be happening).
    This method will wait until document.readyState == "complete".
    This may be redundant, as methods already wait for page elements to load.
    If the timeout is exceeded, the test will still continue
      because readyState == "interactive" may be good enough.
    (Previously, tests would fail immediately if exceeding the timeout.)
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            ready_state = driver.execute_script("return document.readyState")
        except WebDriverException:
            # Bug fix for: [Permission denied to access property "document"]
            time.sleep(0.03)
            return True
        if ready_state == "complete":
            time.sleep(0.01)  # Better be sure everything is done loading
            return True
        else:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    return False  # readyState stayed "interactive" (Not "complete")
Exemple #2
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def wait_for_text_not_visible(driver,
                              text,
                              selector,
                              by=By.CSS_SELECTOR,
                              timeout=settings.LARGE_TIMEOUT):
    """
    Searches for the text in the element of the given selector on the page.
    Returns True if the text is not visible on the page within the timeout.
    Raises an exception if the text is still present after the timeout.
    @Params
    driver - the webdriver object (required)
    text - the text that is being searched for in the element (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    @Returns
    A web element object that contains the text searched for
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        if not is_text_visible(driver, text, selector, by=by):
            return True
        now_ms = time.time() * 1000.0
        if now_ms >= stop_ms:
            break
        time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    raise Exception("Text {%s} in {%s} was still visible after %s "
                    "second%s!" % (text, selector, timeout, plural))
Exemple #3
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def wait_for_element_not_visible(driver,
                                 selector,
                                 by=By.CSS_SELECTOR,
                                 timeout=settings.LARGE_TIMEOUT):
    """
    Searches for the specified element by the given selector.
    Raises an exception if the element is still visible after the
    specified timeout.
    @Params
    driver - the webdriver object (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for the element in seconds
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            if element.is_displayed():
                now_ms = time.time() * 1000.0
                if now_ms >= stop_ms:
                    break
                time.sleep(0.1)
            else:
                return True
        except Exception:
            return True
    plural = "s"
    if timeout == 1:
        plural = ""
    raise Exception("Element {%s} was still visible after %s second%s!" %
                    (selector, timeout, plural))
def wait_for_element_present(driver,
                             selector,
                             by=By.CSS_SELECTOR,
                             timeout=settings.LARGE_TIMEOUT):
    """
    Searches for the specified element by the given selector. Returns the
    element object if the element is present on the page. The element can be
    invisible. Raises an exception if the element does not appear in the
    specified timeout.
    @Params
    driver - the webdriver object
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    @Returns
    A web element object
    """
    element = None
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            return element
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    if not element:
        raise NoSuchElementException(
            "Element {%s} was not present after %s seconds!" %
            (selector, timeout))
Exemple #5
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def wait_for_and_switch_to_alert(driver, timeout=settings.LARGE_TIMEOUT):
    """
    Wait for a browser alert to appear, and switch to it. This should be usable
    as a drop-in replacement for driver.switch_to.alert when the alert box
    may not exist yet.
    @Params
    driver - the webdriver object (required)
    timeout - the time to wait for the alert in seconds
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        s_utils.check_if_time_limit_exceeded()
        try:
            alert = driver.switch_to.alert
            # Raises exception if no alert present
            dummy_variable = alert.text  # noqa
            return alert
        except NoAlertPresentException:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    message = ("Alert was not present after %s seconds!" % timeout)
    timeout_exception(Exception, message)
def wait_for_ready_state_complete(driver, timeout=settings.EXTREME_TIMEOUT):
    """
    The DOM (Document Object Model) has a property called "readyState".
    When the value of this becomes "complete", page resources are considered
    fully loaded (although AJAX and other loads might still be happening).
    This method will wait until document.readyState == "complete".
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            # If there's an alert, skip
            driver.switch_to.alert
            return
        except Exception:
            # If there's no alert, continue
            pass
        try:
            ready_state = driver.execute_script("return document.readyState")
        except WebDriverException:
            # Bug fix for: [Permission denied to access property "document"]
            time.sleep(0.03)
            return True
        if ready_state == u'complete':
            time.sleep(0.01)  # Better be sure everything is done loading
            return True
        else:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    raise Exception("Page elements never fully loaded after %s seconds!" %
                    timeout)
Exemple #7
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def switch_to_frame(driver, frame, timeout=settings.SMALL_TIMEOUT):
    """
    Wait for an iframe to appear, and switch to it. This should be
    usable as a drop-in replacement for driver.switch_to.frame().
    @Params
    driver - the webdriver object (required)
    frame - the frame element, name, id, index, or selector
    timeout - the time to wait for the alert in seconds
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            driver.switch_to.frame(frame)
            return True
        except NoSuchFrameException:
            if type(frame) is str:
                by = None
                if page_utils.is_xpath_selector(frame):
                    by = By.XPATH
                else:
                    by = By.CSS_SELECTOR
                if is_element_visible(driver, frame, by=by):
                    try:
                        element = driver.find_element(by=by, value=frame)
                        driver.switch_to.frame(element)
                        return True
                    except Exception:
                        pass
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    raise Exception("Frame was not present after %s seconds!" % timeout)
Exemple #8
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def wait_for_text_visible(driver,
                          text,
                          selector,
                          by=By.CSS_SELECTOR,
                          timeout=settings.LARGE_TIMEOUT):
    """
    Searches for the specified element by the given selector. Returns the
    element object if the text is present in the element and visible
    on the page.
    Raises NoSuchElementException if the element does not exist in the HTML
    within the specified timeout.
    Raises ElementNotVisibleException if the element exists in the HTML,
    but the text is not visible within the specified timeout.
    @Params
    driver - the webdriver object (required)
    text - the text that is being searched for in the element (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    @Returns
    A web element object that contains the text searched for
    """
    element = None
    is_present = False
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        s_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            is_present = True
            if element.is_displayed() and text in element.text:
                return element
            else:
                element = None
                raise Exception()
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element:
        if not is_present:
            # The element does not exist in the HTML
            message = "Element {%s} was not present after %s second%s!" % (
                selector,
                timeout,
                plural,
            )
            timeout_exception(NoSuchElementException, message)
        # The element exists in the HTML, but the text is not visible
        message = (
            "Expected text {%s} for {%s} was not visible after %s second%s!" %
            (text, selector, timeout, plural))
        timeout_exception(ElementNotVisibleException, message)
Exemple #9
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def switch_to_window(driver, window, timeout=settings.SMALL_TIMEOUT):
    """
    Wait for a window to appear, and switch to it. This should be usable
    as a drop-in replacement for driver.switch_to.window().
    @Params
    driver - the webdriver object (required)
    window - the window index or window handle
    timeout - the time to wait for the window in seconds
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    if isinstance(window, int):
        for x in range(int(timeout * 10)):
            shared_utils.check_if_time_limit_exceeded()
            try:
                window_handle = driver.window_handles[window]
                driver.switch_to.window(window_handle)
                return True
            except IndexError:
                now_ms = time.time() * 1000.0
                if now_ms >= stop_ms:
                    break
                time.sleep(0.1)
        plural = "s"
        if timeout == 1:
            plural = ""
        message = "Window {%s} was not present after %s second%s!" "" % (
            window,
            timeout,
            plural,
        )
        timeout_exception(Exception, message)
    else:
        window_handle = window
        for x in range(int(timeout * 10)):
            shared_utils.check_if_time_limit_exceeded()
            try:
                driver.switch_to.window(window_handle)
                return True
            except NoSuchWindowException:
                now_ms = time.time() * 1000.0
                if now_ms >= stop_ms:
                    break
                time.sleep(0.1)
        plural = "s"
        if timeout == 1:
            plural = ""
        message = "Window {%s} was not present after %s second%s!" "" % (
            window,
            timeout,
            plural,
        )
        timeout_exception(Exception, message)
Exemple #10
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def wait_for_element_visible(driver,
                             selector,
                             by=By.CSS_SELECTOR,
                             timeout=settings.LARGE_TIMEOUT):
    """
    Searches for the specified element by the given selector. Returns the
    element object if the element is present and visible on the page.
    Raises an exception if the element does not appear in the
    specified timeout.
    @Params
    driver - the webdriver object (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds

    @Returns
    A web element object
    """
    element = None
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            if element.is_displayed():
                return element
            else:
                element = None
                raise Exception()
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element and by != By.LINK_TEXT:
        message = "Element {%s} was not visible after %s second%s!" "" % (
            selector,
            timeout,
            plural,
        )
        timeout_exception(ElementNotVisibleException, message)
    if not element and by == By.LINK_TEXT:
        message = "Link text {%s} was not visible after %s second%s!" "" % (
            selector,
            timeout,
            plural,
        )
        timeout_exception(ElementNotVisibleException, message)
def wait_for_element_present(
    driver,
    selector,
    by="css selector",
    timeout=settings.LARGE_TIMEOUT,
    original_selector=None,
):
    """
    Searches for the specified element by the given selector. Returns the
    element object if it exists in the HTML. (The element can be invisible.)
    Raises NoSuchElementException if the element does not exist in the HTML
    within the specified timeout.
    @Params
    driver - the webdriver object
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    original_selector - handle pre-converted ":contains(TEXT)" selector
    @Returns
    A web element object
    """
    element = None
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            return element
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element:
        if (original_selector and ":contains(" in original_selector
                and "contains(." in selector):
            selector = original_selector
        message = "Element {%s} was not present after %s second%s!" % (
            selector,
            timeout,
            plural,
        )
        timeout_exception(NoSuchElementException, message)
    else:
        return element
Exemple #12
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def wait_for_exact_text_visible(driver,
                                text,
                                selector,
                                by=By.CSS_SELECTOR,
                                timeout=settings.LARGE_TIMEOUT):
    """
    Searches for the specified element by the given selector. Returns the
    element object if the text matches exactly with the text in the element,
    and the text is visible.
    Raises an exception if the text or element do not appear
    in the specified timeout.
    @Params
    driver - the webdriver object (required)
    text - the exact text that is expected for the element (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    @Returns
    A web element object that contains the text searched for
    """
    element = None
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            if element.is_displayed() and text.strip() == element.text.strip():
                return element
            else:
                element = None
                raise Exception()
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element:
        message = "Expected exact text {%s} for {%s} was not visible " "after %s second%s!" % (
            text,
            selector,
            timeout,
            plural,
        )
        timeout_exception(ElementNotVisibleException, message)
def wait_for_attribute_not_present(
    driver,
    selector,
    attribute,
    value=None,
    by="css selector",
    timeout=settings.LARGE_TIMEOUT,
):
    """
    Searches for the specified element attribute by the given selector.
    Returns True if the attribute isn't present on the page within the timeout.
    Also returns True if the element is not present within the timeout.
    Raises an exception if the attribute is still present after the timeout.
    @Params
    driver - the webdriver object (required)
    selector - the locator for identifying the page element (required)
    attribute - the element attribute (required)
    value - the attribute value (Default: None)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for the element attribute in seconds
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        if not is_attribute_present(
                driver, selector, attribute, value=value, by=by):
            return True
        now_ms = time.time() * 1000.0
        if now_ms >= stop_ms:
            break
        time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    message = (
        "Attribute {%s} of element {%s} was still present after %s second%s!"
        "" % (attribute, selector, timeout, plural))
    if value:
        message = (
            "Value {%s} for attribute {%s} of element {%s} was still present "
            "after %s second%s!"
            "" % (value, attribute, selector, timeout, plural))
    timeout_exception(Exception, message)
def wait_for_element_absent(
    driver,
    selector,
    by="css selector",
    timeout=settings.LARGE_TIMEOUT,
    original_selector=None,
):
    """
    Searches for the specified element by the given selector.
    Raises an exception if the element is still present after the
    specified timeout.
    @Params
    driver - the webdriver object
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    original_selector - handle pre-converted ":contains(TEXT)" selector
    """
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            driver.find_element(by=by, value=selector)
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
        except Exception:
            return True
    plural = "s"
    if timeout == 1:
        plural = ""
    if (original_selector and ":contains(" in original_selector
            and "contains(." in selector):
        selector = original_selector
    message = "Element {%s} was still present after %s second%s!" % (
        selector,
        timeout,
        plural,
    )
    timeout_exception(Exception, message)
def wait_for_attribute(
    driver,
    selector,
    attribute,
    value=None,
    by="css selector",
    timeout=settings.LARGE_TIMEOUT,
):
    """
    Searches for the specified element attribute by the given selector.
    Returns the element object if the expected attribute is present
    and the expected attribute value is present (if specified).
    Raises NoSuchElementException if the element does not exist in the HTML
    within the specified timeout.
    Raises NoSuchAttributeException if the element exists in the HTML,
    but the expected attribute/value is not present within the timeout.
    @Params
    driver - the webdriver object (required)
    selector - the locator for identifying the page element (required)
    attribute - the attribute that is expected for the element (required)
    value - the attribute value that is expected (Default: None)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for the element attribute in seconds
    @Returns
    A web element object that contains the expected attribute/value
    """
    element = None
    element_present = False
    attribute_present = False
    found_value = None
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            element_present = True
            attribute_present = False
            found_value = element.get_attribute(attribute)
            if found_value is not None:
                attribute_present = True
            else:
                element = None
                raise Exception()

            if value is not None:
                if found_value == value:
                    return element
                else:
                    element = None
                    raise Exception()
            else:
                return element
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element:
        if not element_present:
            # The element does not exist in the HTML
            message = "Element {%s} was not present after %s second%s!" % (
                selector,
                timeout,
                plural,
            )
            timeout_exception(NoSuchElementException, message)
        if not attribute_present:
            # The element does not have the attribute
            message = (
                "Expected attribute {%s} of element {%s} was not present "
                "after %s second%s!" % (attribute, selector, timeout, plural))
            timeout_exception(NoSuchAttributeException, message)
        # The element attribute exists, but the expected value does not match
        message = (
            "Expected value {%s} for attribute {%s} of element {%s} was not "
            "present after %s second%s! (The actual value was {%s})" %
            (value, attribute, selector, timeout, plural, found_value))
        timeout_exception(NoSuchAttributeException, message)
    else:
        return element
def wait_for_exact_text_visible(
    driver,
    text,
    selector,
    by="css selector",
    timeout=settings.LARGE_TIMEOUT,
    browser=None,
):
    """
    Searches for the specified element by the given selector. Returns the
    element object if the text matches exactly with the text in the element,
    and the text is visible.
    Raises NoSuchElementException if the element does not exist in the HTML
    within the specified timeout.
    Raises ElementNotVisibleException if the element exists in the HTML,
    but the exact text is not visible within the specified timeout.
    @Params
    driver - the webdriver object (required)
    text - the exact text that is expected for the element (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    browser - used to handle a special edge case when using Safari
    @Returns
    A web element object that contains the text searched for
    """
    element = None
    is_present = False
    actual_text = None
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        actual_text = None
        try:
            element = driver.find_element(by=by, value=selector)
            is_present = True
            if element.tag_name == "input":
                if (element.is_displayed() and text.strip()
                        == element.get_property("value").strip()):
                    return element
                else:
                    if element.is_displayed():
                        actual_text = element.get_property("value").strip()
                    element = None
                    raise Exception()
            elif browser == "safari":
                if element.is_displayed() and (
                        text.strip()
                        == element.get_attribute("innerText").strip()):
                    return element
                else:
                    if element.is_displayed():
                        actual_text = element.get_attribute("innerText")
                        actual_text = actual_text.strip()
                    element = None
                    raise Exception()
            else:
                if (element.is_displayed()
                        and text.strip() == element.text.strip()):
                    return element
                else:
                    if element.is_displayed():
                        actual_text = element.text.strip()
                    element = None
                    raise Exception()
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element:
        if not is_present:
            # The element does not exist in the HTML
            message = "Element {%s} was not present after %s second%s!" % (
                selector,
                timeout,
                plural,
            )
            timeout_exception(NoSuchElementException, message)
        # The element exists in the HTML, but the exact text is not visible
        message = None
        if not actual_text or len(str(actual_text)) > 120:
            message = ("Expected exact text {%s} for {%s} was not visible "
                       "after %s second%s!" %
                       (text, selector, timeout, plural))
        else:
            actual_text = actual_text.replace("\n", "\\n")
            message = ("Expected exact text {%s} for {%s} was not visible "
                       "after %s second%s!\n (Actual text was {%s})" %
                       (text, selector, timeout, plural, actual_text))
        timeout_exception(TextNotVisibleException, message)
    else:
        return element
def wait_for_element_visible(
    driver,
    selector,
    by="css selector",
    timeout=settings.LARGE_TIMEOUT,
    original_selector=None,
):
    """
    Searches for the specified element by the given selector. Returns the
    element object if the element is present and visible on the page.
    Raises NoSuchElementException if the element does not exist in the HTML
    within the specified timeout.
    Raises ElementNotVisibleException if the element exists in the HTML,
    but is not visible (eg. opacity is "0") within the specified timeout.
    @Params
    driver - the webdriver object (required)
    selector - the locator for identifying the page element (required)
    by - the type of selector being used (Default: By.CSS_SELECTOR)
    timeout - the time to wait for elements in seconds
    original_selector - handle pre-converted ":contains(TEXT)" selector
    @Returns
    A web element object
    """
    element = None
    is_present = False
    start_ms = time.time() * 1000.0
    stop_ms = start_ms + (timeout * 1000.0)
    for x in range(int(timeout * 10)):
        shared_utils.check_if_time_limit_exceeded()
        try:
            element = driver.find_element(by=by, value=selector)
            is_present = True
            if element.is_displayed():
                return element
            else:
                element = None
                raise Exception()
        except Exception:
            now_ms = time.time() * 1000.0
            if now_ms >= stop_ms:
                break
            time.sleep(0.1)
    plural = "s"
    if timeout == 1:
        plural = ""
    if not element and by != By.LINK_TEXT:
        if (original_selector and ":contains(" in original_selector
                and "contains(." in selector):
            selector = original_selector
        if not is_present:
            # The element does not exist in the HTML
            message = "Element {%s} was not present after %s second%s!" % (
                selector,
                timeout,
                plural,
            )
            timeout_exception(NoSuchElementException, message)
        # The element exists in the HTML, but is not visible
        message = "Element {%s} was not visible after %s second%s!" % (
            selector,
            timeout,
            plural,
        )
        timeout_exception(ElementNotVisibleException, message)
    elif not element and by == By.LINK_TEXT:
        message = "Link text {%s} was not visible after %s second%s!" % (
            selector,
            timeout,
            plural,
        )
        timeout_exception(ElementNotVisibleException, message)
    else:
        return element