TestCaseProblem

java.lang.Object
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- jcgp.backend.modules.Module
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  - jcgp.backend.modules.problem.Problem
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    - jcgp.backend.modules.problem.TestCaseProblem<T>
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Type Parameters:
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T - the data type to be used by the TestCaseProblem.
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Direct Known Subclasses:
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DigitalCircuitProblem, SymbolicRegressionProblem
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```
public abstract class TestCaseProblem<T>
-extends Problem
```
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Abstract model for a problem that uses test cases. A test case - problem is any problem that compares the chromosome output to - an expected output taken from a table of input-output mappings. -

- This class defines a basic data type for storing test cases, - TestCase, and provides core functionality to add and manipulate - test cases in the problem. A subclass of TestCaseProblem - must simply override parseTestCase() to convert parsed - problem data strings into the required data type (T).
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Author:
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Eduardo Pedroni
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See Also:
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Problem
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Nested Class Summary

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Nested Classes
Modifier and Type	Class and Description
`static class`	`TestCaseProblem.TestCase<U>` - Basic data type for encapsulating test cases, it simply - contains arrays of inputs and outputs and associated getters. -

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Method Summary

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All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addTestCase(java.lang.String[] inputs, - java.lang.String[] outputs)` - Adds test cases to the problem instance as they get parsed from a - problem data file. -
`void`	`clearTestCases()` - Remove all test cases. -
`javafx.collections.ObservableList<TestCaseProblem.TestCase<T>>`	`getTestCases()`
`int`	`hasImprovement(Population population)` - Used to assert whether a given population has a chromosome that is an improvement over - the current best chromosome. -
`void`	`parseProblemData(java.io.File file, - ModifiableResources resources)` - Parses the specified file and uses the parsed data to - set up the problem type instance appropriately. -

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Methods inherited from class jcgp.backend.modules.problem.Problem
-evaluate, getBestFitness, getFileExtension, getFitnessOrientation, getFunctionSet, hasPerfectSolution, reset

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Methods inherited from class jcgp.backend.modules.Module
-getLocalParameters, toString

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Methods inherited from class java.lang.Object
-equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

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  Method Detail
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    getTestCases
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```
public javafx.collections.ObservableList<TestCaseProblem.TestCase<T>> getTestCases()
```
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    Returns:
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    a list containing the test cases.
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    addTestCase
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```
public final void addTestCase(java.lang.String[] inputs,
-                              java.lang.String[] outputs)
```
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    Adds test cases to the problem instance as they get parsed from a - problem data file. This template method uses parseTestCase, which - must be implemented by subclasses.
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    Parameters:
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    inputs - the inputs represented as strings.
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    outputs - the outputs represented as strings.
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    clearTestCases
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```
public void clearTestCases()
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    Remove all test cases.
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    parseProblemData
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```
public void parseProblemData(java.io.File file,
-                             ModifiableResources resources)
```
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    Description copied from class: Problem
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    Parses the specified file and uses the parsed data to - set up the problem type instance appropriately. Any necessary - resource changes can be performed using the provided ModifiableResources - instance. -
    
    - In addition, realisations of this method should update the value of - maxFitness where appropriate, as this may be displayed to the user - if a GUI is in use.
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    Specified by:
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    parseProblemData in class Problem
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    Parameters:
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    file - the data file to parse.
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    resources - a modifiable reference to the experiment's resources.
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    hasImprovement
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```
public int hasImprovement(Population population)
```
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    Description copied from class: Problem
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    Used to assert whether a given population has a chromosome that is an improvement over - the current best chromosome. A typical implementation of this method - will simply compare chromosome fitness values, though the problem type - is free to implement this in any way.
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    Specified by:
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    hasImprovement in class Problem
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    Parameters:
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    population - the population potentially containing a fitter chromosome.
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    Returns:
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    the index of the first chromosome in the population that is an improvement, -1 if none is found.
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Class TestCaseProblem<T>

Nested Class Summary

Method Summary

Methods inherited from class jcgp.backend.modules.problem.Problem

Methods inherited from class jcgp.backend.modules.Module

Methods inherited from class java.lang.Object

Method Detail

getTestCases

addTestCase

clearTestCases

parseProblemData

hasImprovement