IB Computer Science Topic B.1.5 Designing Test Cases Revision Notes (SL/HL)

IB Computer Science Topic B.1.5 Designing Test Cases Revision Notes (SL/HL) | RevisionDojo

Why Test Cases Matter

Test cases are essential for evaluating the performance and reliability of an model.
They help ensure that the model behaves as expected in different scenarios.
This can be broken down into three components:
1. Validate Accuracy: Ensure the model produces correct predictions.
2. Identify Weaknesses: Reveal areas where the model may fail.
3. Ensure Robustness: Test the model's ability to handle unexpected or edge cases.

Types of Test Cases

Test cases can be categorized into several types:
1. Positive test cases check if the model performs well on typical, expected inputs.
2. Negative test cases challenge the model with unusual or adversarial inputs.
3. Edge cases test the model's behavior on inputs at the boundaries of its capabilities.
These cases simulate real-world conditions to ensure the model's practical usability.

Example

For a spam filter, positive test cases might include clear spam emails and legitimate messages.
For the same spam filter, negative test cases could include emails with mixed spam and legitimate content.
Edge cases can include testing a language model with extremely long or short sentences.

Designing Effective Test Cases

Understand the model's purpose

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Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

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Note

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Excepteur sint occaecat cupidatat non proident

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Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

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Why Test Cases Matter

Test cases are essential for evaluating the performance and reliability of an model.
They help ensure that the model behaves as expected in different scenarios.
This can be broken down into three components:
1. Validate Accuracy: Ensure the model produces correct predictions.
2. Identify Weaknesses: Reveal areas where the model may fail.
3. Ensure Robustness: Test the model's ability to handle unexpected or edge cases.

Types of Test Cases

Test cases can be categorized into several types:
1. Positive test cases check if the model performs well on typical, expected inputs.
2. Negative test cases challenge the model with unusual or adversarial inputs.
3. Edge cases test the model's behavior on inputs at the boundaries of its capabilities.
These cases simulate real-world conditions to ensure the model's practical usability.

Example

For a spam filter, positive test cases might include clear spam emails and legitimate messages.
For the same spam filter, negative test cases could include emails with mixed spam and legitimate content.
Edge cases can include testing a language model with extremely long or short sentences.

Designing Effective Test Cases

Understand the model's purpose

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

1. System fundamentals2 subtopics

2. Computer organization1 subtopic

3. Networks1 subtopic

4. Computational thinking, problem-solving and programming3 subtopics

5. Abstract data structures (HL)1 subtopic

6. Resource management (HL)1 subtopic

7. Control (HL)1 subtopic

A. Databases4 subtopics

B. Modelling and simulation4 subtopics

C. Web science6 subtopics

D. Object-oriented programming (OOP)4 subtopics

IB Computer Science B.1.5 Designing Test Cases Notes

1. System fundamentals2 subtopics

2. Computer organization1 subtopic

3. Networks1 subtopic

4. Computational thinking, problem-solving and programming3 subtopics

5. Abstract data structures (HL)1 subtopic

6. Resource management (HL)1 subtopic

7. Control (HL)1 subtopic

A. Databases4 subtopics

B. Modelling and simulation4 subtopics

C. Web science6 subtopics

D. Object-oriented programming (OOP)4 subtopics

Why Test Cases Matter

Types of Test Cases

Designing Effective Test Cases

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Why Test Cases Matter

Types of Test Cases

Designing Effective Test Cases

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account