Defect lifecycle in Testing Fundamentals - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Defect Status Transition

In a typical defect lifecycle, what is the correct next status after a defect is marked as Fixed by the developer?

A Closed

B Reopened

C Deferred

D Retest

💡 Hint

Think about who verifies the fix after the developer marks it as fixed.

After a defect is fixed by the developer, it moves to the Retest status where the tester verifies the fix.

🧠 Conceptual

intermediate

Defect Lifecycle Final Status

Which status indicates that a defect is completely resolved and no further action is needed?

A Deferred

B Rejected

C Closed

D Duplicate

💡 Hint

This status means the defect is done and verified.

Closed means the defect has been fixed, retested, and confirmed resolved.

❓ Predict Output

advanced

Defect Status Flow Simulation Output

Consider this Python code simulating defect status changes. What is the final status printed?

Testing Fundamentals

defect_status = 'New'

transitions = {
    'New': 'Assigned',
    'Assigned': 'Fixed',
    'Fixed': 'Retest',
    'Retest': 'Closed'
}

for _ in range(4):
    defect_status = transitions.get(defect_status, defect_status)

print(defect_status)

A Closed

B Retest

C Fixed

D Assigned

💡 Hint

Follow the status changes step by step.

The status changes as New → Assigned → Fixed → Retest → Closed after 4 transitions.

❓ assertion

advanced

Assertion on Defect Status Validity

Which assertion correctly checks that a defect status is valid from the allowed set?

A assert defect_status in ['New', 'Assigned', 'Fixed', 'Retest', 'Closed']

B assert defect_status == ['New', 'Assigned', 'Fixed', 'Retest', 'Closed']

C assert defect_status not in ['New', 'Assigned', 'Fixed', 'Retest', 'Closed']

D assert defect_status is ['New', 'Assigned', 'Fixed', 'Retest', 'Closed']

💡 Hint

Check if the status is one of the allowed strings.

Option A correctly asserts the status is in the list. Others compare incorrectly or negate the condition.

🔧 Debug

expert

Debug Defect Status Transition Code

Find the error in this Python code simulating defect status transitions and select the option that describes the error.

Testing Fundamentals

defect_status = 'New'

transitions = {
    'New': 'Assigned',
    'Assigned': 'Fixed',
    'Fixed': 'Retest',
    'Retest': 'Closed'
}

for i in range(5):
    defect_status = transitions[defect_status]

print(defect_status)

A SyntaxError due to missing colon in dictionary

B KeyError occurs on 5th iteration because 'Closed' is not a key in transitions

C TypeError because transitions is not a dictionary

D IndexError because range is out of bounds

💡 Hint

Check what happens when the loop tries to access a key not in the dictionary.

After 4 iterations, defect_status becomes 'Closed'. On 5th iteration, transitions['Closed'] causes KeyError.