ISTQB FOUNDATION 4.0 | Tutorial 30-1 | Equivalence Partition | Test Case Design Techniques | CTFL

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15 Feb 202411:04

Summary

TLDRThis tutorial delves into the ISTQB Foundation Level certification, focusing on Chapter 4: Test Analysis and Design. It particularly explores blackbox test techniques, specifically the concept of equivalence partitioning with multiple inputs. The instructor uses examples of an apartment search form and a flight booking application to illustrate how to minimize test cases while ensuring every condition is covered at least once. The goal is to achieve 100% equivalence partition coverage with the least number of test cases, a critical skill for software testers.

Takeaways

  • 📚 The tutorial is focused on ISTQB Foundation Level certification, specifically covering Chapter 4 on Test Analysis and Design.
  • 🔍 The segment 4.2 discusses blackbox test techniques, with an emphasis on equivalence partitioning (EP) as a method to minimize test cases while ensuring all conditions are tested at least once.
  • 📝 The tutorial begins by explaining how to handle multiple inputs in a test scenario, using example questions to illustrate the process.
  • 🏠 An example of a simplified apartment search form is used to demonstrate how to apply EP with multiple input types such as floor options and garden types.
  • 🌿 The example clarifies that only ground floor apartments can have gardens, and this constraint is used to reduce the number of test cases by eliminating invalid combinations.
  • 🛫 A second example involves a flight booking application with three constraints: staff eligibility, weekday booking, and specific time windows for booking.
  • ⏰ The flight booking example highlights the importance of considering time partitions carefully, especially when dealing with edge cases like midnight.
  • 📉 The tutorial emphasizes the goal of minimizing test cases while ensuring complete coverage of all valid and invalid input combinations.
  • 📝 The script provides a step-by-step approach to creating test cases for both examples, showing how to combine inputs to achieve 100% EP coverage.
  • 📉 The minimum number of test cases required for 100% EP coverage is identified for each example, demonstrating the effectiveness of the method.
  • 💡 The tutorial concludes by encouraging learners to ask questions and continue exploring the subject, emphasizing the importance of ongoing learning and understanding.

Q & A

  • What is the main topic of this tutorial?

    -The main topic of this tutorial is test analysis and design, specifically focusing on blackbox test techniques and equivalence partitioning with multiple inputs.

  • What is the goal of using equivalence partitioning in testing?

    -The goal of using equivalence partitioning in testing is to minimize the number of test cases while ensuring that every condition is tested at least once.

  • What is the significance of the example of the apartment search form in the tutorial?

    -The apartment search form example illustrates how to apply equivalence partitioning to a scenario with multiple inputs (floor and garden type) and constraints to determine the minimum number of test cases needed for full coverage.

  • How many search criteria does the apartment search form in the example have?

    -The apartment search form has two search criteria: floor and garden type.

  • What are the constraints given for the garden type in the apartment search form example?

    -The constraint is that only apartments on the ground floor can have a garden, and there is a built-in validation mechanism that prevents selecting a garden type for first floor or higher floors.

  • What is the minimum number of test cases required to cover 100% equivalence partition coverage for the apartment search form example?

    -The minimum number of test cases required is four, as shown by the provided test cases in the tutorial.

  • What is the scenario in the second example about?

    -The second example scenario is about testing a flight booking application with constraints related to who can book (staff of the airline only), when the booking can be made (only on weekdays and between 9:00 a.m. to 5:00 p.m.), and considering the date change at midnight.

  • How many constraints are there for booking a flight in the flight booking application example?

    -There are three constraints for booking a flight: the person must be a staff member of the airline, the booking must be on a weekday, and it must be between 9:00 a.m. and 5:00 p.m.

  • What is the minimum number of test cases needed to achieve 100% equivalence partition coverage for the flight booking application example?

    -The minimum number of test cases needed is four, covering valid and invalid scenarios for each constraint.

  • What is the importance of considering the date change at midnight when creating test cases for the flight booking application?

    -Considering the date change at midnight is important because it affects the validity of the booking; for example, a booking attempted late on a weekday could change the date to the weekend, which is an invalid input scenario.

  • How does the tutorial suggest combining multiple inputs to form test cases?

    -The tutorial suggests combining multiple inputs by creating test cases that cover each input value at least once, ensuring full coverage with the minimum number of test cases.

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