Class MockFeatureWithCalculationFixture

Object

MockFeatureWithCalculationFixture

public class MockFeatureWithCalculationFixture
extends Object

Creates a mock-feature which used a mock CalculationPart under the hood

Tests can be executed so as to count the number of times the calculation and feature's MockFeatureWithCalculation.calculate(org.anchoranalysis.feature.calculate.FeatureCalculationInput<org.anchoranalysis.feature.input.FeatureInput>) method are called.

This is implemented using (ugly) static methods and some reflection, as Feature's must remain valid Anchor-bean's and thus cannot be inner-classes or rely on parameterization in the constructor.

Author:

Owen Feehan

Field Summary

Fields

Modifier and Type	Field	Description
static final ToDoubleFunction<FeatureInputSingleObject>	DEFAULT_FUNC_NUM_PIXELS	A default function for counting the number of pixels (voxels) in a single object.

Method Summary

Modifier and Type	Method	Description
static Feature<FeatureInputSingleObject>	createMockFeatureWithCalculation()	Creates a mock feature that counts the number of pixels in an object.
static <T extends FeatureInput> Feature<T>	createMockFeatureWithCalculation(ToDoubleFunction<T> funcCalculation)	Creates a mock feature with a custom calculation function.
static void	executeAndAssertCount(int expectedCountCalc, int expectedCountExecute, CheckedRunnable<OperationFailedException> operation)	Executes an operation and asserts the expected number of calls to internal methods.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

DEFAULT_FUNC_NUM_PIXELS

public static final ToDoubleFunction<FeatureInputSingleObject> DEFAULT_FUNC_NUM_PIXELS

A default function for counting the number of pixels (voxels) in a single object.

This function takes a FeatureInputSingleObject as input and returns the number of "on" voxels in the object as a double value. It is used as the default calculation function when creating a mock feature without specifying a custom function.

Method Details

executeAndAssertCount

public static void executeAndAssertCount(int expectedCountCalc,
 int expectedCountExecute,
 CheckedRunnable<OperationFailedException> operation)
                                  throws OperationFailedException

Executes an operation and asserts the expected number of calls to internal methods.

This method runs the given operation and then checks if the number of calls to Feature.calculate(org.anchoranalysis.feature.calculate.FeatureCalculationInput<T>) and the mock calculation's execute() method match the expected counts.

Parameters:

expectedCountCalc - the expected number of calls to Feature.calculate(org.anchoranalysis.feature.calculate.FeatureCalculationInput<T>)

expectedCountExecute - the expected number of calls to execute() on the mock calculation

operation - the operation to execute, typically involving the mock calculation

Throws:

OperationFailedException - if the operation fails

createMockFeatureWithCalculation

public static Feature<FeatureInputSingleObject> createMockFeatureWithCalculation()

Creates a mock feature that counts the number of pixels in an object.

This mock feature uses a mock CalculationPart under the hood to perform the pixel counting.

Returns:

a new Feature that counts pixels in a FeatureInputSingleObject

createMockFeatureWithCalculation

public static <T extends FeatureInput> Feature<T> createMockFeatureWithCalculation(ToDoubleFunction<T> funcCalculation)

Creates a mock feature with a custom calculation function.

This method creates a mock feature that uses the provided function to calculate its result. It uses a mock CalculationPart under the hood.

Type Parameters:

T - the type of FeatureInput for the feature

Parameters:

funcCalculation - a function that calculates the result for the mock feature

Returns:

a new Feature that uses the provided calculation function