Day 10: Mini Project – Write Test Cases for a Sample App
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Understanding Test Cases
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Today, we're focusing on writing test cases. Can anyone tell me what a test case is?
Isn't it a document that outlines the steps to verify a functionality?
Exactly! A test case details the steps needed to test a particular feature and its expected outcomes. It's essential for ensuring the application meets its requirements.
What should we include in a test case?
Great question! A typical test case includes an ID, a description, steps, and the expected result. This structure helps maintain clarity. Remember the acronym 'IDES' - **I**dentification, **D**escription, **E**xecution steps, and **S**uccess criteria.
Could you give us an example?
Certainly! For a login feature, a test case could look like this: ID: TC001, Description: Verify login with valid credentials, Steps: 1. Enter username, 2. Enter password, 3. Click login, Expected Result: User successfully logged in.
To summarize, test cases are critical in QA for validating functionality. They help prevent defects by ensuring every feature works as intended.
Applying Test Design Techniques
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Now, let's move to techniques for writing effective test cases. Who can explain what Boundary Value Analysis (BVA) is?
It's testing at the boundaries of input ranges, right?
Absolutely! BVA is about testing at the edges of the limits—think of it as checking 'off-by-one' errors. For example, if an input field accepts numbers from 1 to 100, we will test values like 1, 100, 0, and 101.
What about Equivalence Partitioning (EP)? How does that work?
EP divides input into valid and invalid partitions. You only need to test one value from each partition. So, if a textbox accepts a length of 4 to 20, you can test one valid case like 10 and invalid cases like 3 and 21. This minimizes testing while still providing coverage.
Can we apply both techniques in our project?
Yes! For your mini-project, include at least one test case using BVA and another using EP. This will enhance your testing rigor.
In summary, BVA and EP help ensure effective coverage of test cases while reducing redundancy.
Hands-on Practice
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Now for the fun part—let's write test cases for our to-do list application. What are some key features we should cover?
Adding a task, marking it as complete, and deleting a task?
Exactly! Start thinking about how you'll structure these test cases. Remember, aim for clarity and completeness.
Can we brainstorm the content together?
Sure! Let's list out potential test cases. For adding a task, we could have one for valid input and another for invalid input.
And don’t forget about testing the limit on the task length!
Great point! We can apply BVA there as well. After writing your test cases, we'll review them in pairs. Remember to include at least one case for BVA and one for EP.
To wrap up, you should all have test cases written for different functionalities, which is critical in ensuring we meet user requirements.
Introduction & Overview
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Quick Overview
Standard
This section emphasizes hands-on practice where students write test cases for a sample application. They are instructed to cover key features, ensuring to include one test case using boundary value analysis (BVA) and one using equivalence partitioning (EP). This exercise consolidates their understanding of test case design and its application in a real-world context.
Detailed
Detailed Summary of Day 10: Mini Project – Write Test Cases for a Sample App
In this mini-project, students are tasked with creating test cases for a sample to-do list application. This exercise is designed to enhance their practical skills in writing effective test cases by focusing on key features of the app. Each student must write five test cases that encompass various functionalities of the application. Notably, these test cases should illustrate the use of two specific testing techniques: Boundary Value Analysis (BVA) and Equivalence Partitioning (EP).
Key Objectives:
1. Writing Five Test Cases: Students are encouraged to cover different aspects of the to-do list app, such as adding tasks, marking tasks as completed, and deleting tasks.
2. Utilizing BVA and EP: One test case must demonstrate the application of BVA—focusing on edge cases, while another should exemplify EP—categorizing inputs to ensure comprehensive testing.
3. Learning Outcome: By the end of this exercise, students will have practical experience in designing test cases that are structured, clear, and aligned with best practices in QA testing.
Audio Book
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Objective of the Mini Project
Chapter 1 of 3
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Chapter Content
Students write test cases for a sample app, such as a to-do list application.
Detailed Explanation
The primary aim of this mini project is for students to apply the concepts they learned about writing test cases in a practical scenario. They will select a sample app, like a to-do list application, and create a set of comprehensive test cases that cover its key features. This intertwines theoretical knowledge with real-world application, enhancing understanding.
Examples & Analogies
Consider writing test cases for a to-do list app as similar to creating a recipe for your favorite dish. Just like a recipe lists all the steps to make the dish, test cases provide a clear set of steps to check if all functionalities of the app work as expected.
Writing Five Test Cases
Chapter 2 of 3
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Chapter Content
Exercise: Write five test cases covering key features.
Detailed Explanation
Students are instructed to draft five specific test cases that evaluate the core functionalities of the chosen application. This means identifying what essential features the app should have—like adding tasks, deleting tasks, or marking them as completed—and writing down how to test each feature effectively. Each test case should include the test ID, a clear description, the steps to execute the test, and the expected outcome.
Examples & Analogies
Think of this exercise as creating a set of checkpoints to make sure you can navigate through an amusement park smoothly. Just like you would check if the roller coaster is working properly, here you ensure each feature of the app is functioning correctly.
Including Boundary Value Analysis and Equivalence Partitioning
Chapter 3 of 3
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Chapter Content
- Include at least one BVA and one EP test case.
Detailed Explanation
In this part of the project, students must apply Boundary Value Analysis (BVA) and Equivalence Partitioning (EP) methods in their test cases. BVA focuses on testing the edges of input values (like allowing task names with 1 to 100 characters by testing the limits such as 1, 100, and extreme cases like 0 or 101). EP encourages testing valid and invalid inputs (like valid email formats vs. invalid ones) to efficiently cover multiple potential scenarios without writing redundant tests.
Examples & Analogies
Consider BVA and EP as following safety guidelines while driving. BVA would be like checking if you can comfortably drive through a narrow road without hitting obstacles at both ends, while EP is more like ensuring you normally follow the traffic rules that keep you within safety limits regardless of the conditions.
Key Concepts
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Test Cases: Documents that outline the steps needed to test a feature.
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Boundary Value Analysis: A technique for testing at the extremes of input ranges.
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Equivalence Partitioning: A technique for dividing input into valid and invalid categories.
Examples & Applications
Example of a test case for adding a task: ID: TC001, Description: Verify addition of a task with valid input, Steps: 1. Open the app, 2. Enter a valid task, 3. Click add, Expected Result: Task appears in the list.
Example of BVA: Testing number range input where valid inputs are 1-100 by checking values 0, 1, 100, and 101.
Memory Aids
Interactive tools to help you remember key concepts
Rhymes
When testing routines, be sure to glean, those boundary values that are unseen.
Stories
Imagine you're at a club, with a guest list stating 'Only 1 to 100'. You check the door, ensuring no one slips through who shouldn’t, just like BVA.
Memory Tools
To remember BVA, think 'Edges are key, check low and high Glee.' - where Glee means Good Testing is Essential.
Acronyms
For EP, remember 'V.I.V.I.D' - Valid, Invalid, varied inputs, directions!
Flash Cards
Glossary
- Test Case
A set of conditions and variables under which a tester will determine whether an application features or functions correctly.
- Boundary Value Analysis (BVA)
A testing technique that involves testing at the boundaries between partitions.
- Equivalence Partitioning (EP)
A testing technique that divides input data into valid and invalid partitions to reduce the number of test cases.
- ToDo List Application
A sample application used for demonstrating functionalities such as adding, editing, and deleting tasks.
- Step
Individual actions defined in the test case that need to be performed to achieve the expected result.
Reference links
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