Select by value, text, index in Selenium Python - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ query_result

intermediate

What is the output of selecting option by value?

Given a dropdown with options having values '1', '2', '3', what will be the selected option text after selecting by value '2'?

Selenium Python

from selenium.webdriver.support.ui import Select

class DummySelect:
    def __init__(self):
        self.options = [{'value': '1', 'text': 'One'}, {'value': '2', 'text': 'Two'}, {'value': '3', 'text': 'Three'}]
        self.selected_option = None
    def select_by_value(self, value):
        for option in self.options:
            if option['value'] == value:
                self.selected_option = option['text']
                break
        else:
            self.selected_option = None

select = DummySelect()
select.select_by_value('2')
result = select.selected_option

A "1"

B "Two"

C "Three"

D "None"

💡 Hint

Remember, selecting by value matches the option's value attribute, not its text.

Selecting by value '2' matches the option with value '2', which has text 'Two'. So the selected option text is 'Two'.

❓ query_result

intermediate

What is the selected option text after selecting by visible text?

Given a dropdown with options 'Apple', 'Banana', 'Cherry', what will be the selected option value after selecting by visible text 'Banana'?

Selenium Python

from selenium.webdriver.support.ui import Select

class DummySelect:
    def __init__(self):
        self.options = [{'value': 'a', 'text': 'Apple'}, {'value': 'b', 'text': 'Banana'}, {'value': 'c', 'text': 'Cherry'}]
        self.selected_value = None
    def select_by_visible_text(self, text):
        for option in self.options:
            if option['text'] == text:
                self.selected_value = option['value']
                break
        else:
            self.selected_value = None

select = DummySelect()
select.select_by_visible_text('Banana')
result = select.selected_value

A "b"

B "None"

C "a"

D "Banana"

💡 Hint

Selecting by visible text matches the option's text, but the result asked is the value attribute.

Selecting by visible text 'Banana' finds the option with text 'Banana' which has value 'b'. So the selected value is 'b'.

❓ query_result

advanced

What is the selected option text after selecting by index 1?

Given a dropdown with options ['Red', 'Green', 'Blue'], what is the selected option text after selecting by index 1?

Selenium Python

from selenium.webdriver.support.ui import Select

class DummySelect:
    def __init__(self):
        self.options = [{'value': 'r', 'text': 'Red'}, {'value': 'g', 'text': 'Green'}, {'value': 'b', 'text': 'Blue'}]
        self.selected_option = None
    def select_by_index(self, index):
        if 0 <= index < len(self.options):
            self.selected_option = self.options[index]['text']
        else:
            self.selected_option = None

select = DummySelect()
select.select_by_index(1)
result = select.selected_option

A "Green"

B "Red"

C "Blue"

D "None"

💡 Hint

Indexing starts at 0, so index 1 is the second option.

Index 1 corresponds to the second option, which has text 'Green'. So the selected option text is 'Green'.

📝 Syntax

advanced

Which option causes a SyntaxError when selecting by value?

Identify the code snippet that will cause a syntax error when trying to select an option by value.

Selenium Python

from selenium.webdriver.support.ui import Select

select = Select(driver.find_element_by_id('dropdown'))

A select.select_by_value('option1')

B select.select_by_value('option1'

C select.select_by_value('option1'))

D select.select_by_value(option1)

💡 Hint

Look for missing quotes or parentheses.

Option B has a missing closing quote and parenthesis causing SyntaxError. Option C has an extra closing parenthesis causing SyntaxError. Option D lacks quotes causing NameError, not SyntaxError. Option A is correct syntax.

🔧 Debug

expert

Why does selecting by index 5 cause an error?

Given a dropdown with 4 options, what error occurs when selecting by index 5 and why?

Selenium Python

from selenium.webdriver.support.ui import Select

class DummySelect:
    def __init__(self):
        self.options = [{'value': '1', 'text': 'One'}, {'value': '2', 'text': 'Two'}, {'value': '3', 'text': 'Three'}, {'value': '4', 'text': 'Four'}]
    def select_by_index(self, index):
        return self.options[index]['text']

select = DummySelect()
result = select.select_by_index(5)

A KeyError because 'text' key is missing

B No error, returns 'Four'

C TypeError because options is not a list

D IndexError because index 5 is out of range

💡 Hint

Check the length of the options list and the index used.

The options list has 4 items indexed 0 to 3. Index 5 is out of range, so accessing options[5] raises IndexError.