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Software Testing and Programming Concepts
This deck covers key concepts in software testing and programming, including definitions, testing types, and programming principles. It is designed to help students understand and memorize important terms and their applications.
Acceptance Testing
Tests that are run before a system is released into active service.
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Key Terms
Term
Definition
Acceptance Testing
Tests that are run before a system is released into active service.
Aliases
Two different naming expressions that name the same thing.
Base Case
A properly designed recursive function must have at least one of these to avoid infinite regress.
Bottom-up
Whenever possible, before testing a given function, X, test all functions that X calls or that prepare data that X uses.
Dangling Pointer
A naming expression to a memory location that has been returned to the pool of unallocated storage.
Inaccessible storage
A dynamically allocated block of storage that can no longer be accessed to read its value or store a new value into it.
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| Term | Definition |
|---|---|
Acceptance Testing | Tests that are run before a system is released into active service. |
Aliases | Two different naming expressions that name the same thing. |
Base Case | A properly designed recursive function must have at least one of these to avoid infinite regress. |
Bottom-up | Whenever possible, before testing a given function, X, test all functions that X calls or that prepare data that X uses. |
Dangling Pointer | A naming expression to a memory location that has been returned to the pool of unallocated storage. |
Inaccessible storage | A dynamically allocated block of storage that can no longer be accessed to read its value or store a new value into it. |
Infinite regress | Occurs when a recursive program calls itself endlessly and never encounters a base case. |
Information hiding | Hiding things inside a module to prevent external users from accessing them. Can protect their internal mechanisms from external tampering. |
Integration Testing | You check that combinations of the functions work together properly. |
Loop Invariant | An assertion with the property that it is always true no matter how many times a loop is executed. |
Module | Provides a way of grouping together collections of related data and operations; presents clean, well-defined interfaces to users of their services; hides internal details of operation to prevent interface; and can be separately compiled. |
Postcondition | Logical conditions that are true after the program is executed. |
Precondition | Logical conditions that are true before the program is executed. |
Priority Queue | Enables insertion of items in any order, but when an item is removed it is always the item with highest priority. |
Procedural Abstraction | A named unit of action for which it is necessary to know only what it does not how it achieves its result. |
Recursion | A function calls itself inside itself. |
Regression Testing | Checking that everything that used to work before a change was made still continues to work after the change is installed. |
Test drivers | For function S, is a function that enumerates test cases for S, calls S for each test case, and checks the outputs afterwards to see that they are correct. |
Top-down Programming | Method of starting with a top-level design and expanding its details progressively until an actual program is developed. |
Unit Testing | Testing a given function. |
Auxiliary function | A function which assists another function. |
Linked | A type of data representation in which individual blocks of storage are managed using pointers. |
Test Plan | A document that specifies a systematic schedule of testing activities in a software project and gives the inputs and expected correct outputs for each part of the system. |