Package h07.graph

Class PathImplTest

java.lang.Object

h07.util.TestClass

h07.graph.PathImplTest

public class PathImplTest
extends TestClass

Tests for class PathImpl.

Depends on TemplateTests.PathTemplateTest and TemplateTests.TraverserTemplateTest.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	PathImplTest.TraverserTest	Tests for the Traverser returned by PathImpl.traverser().

Nested classes/interfaces inherited from class h07.util.TestClass

TestClass.MissingMemberException

Field Summary

Fields

Modifier and Type	Field	Description
private TemplateTests.TraverserTemplateTest	_traverser	Instance of TemplateTests.TraverserTemplateTest
Method	concat	Method object for Path.concat(V, A)
Method	iterator	Method object for Path.iterator()
Method	of1	Method object for Path.of(V)
Method	of2	Method object for Path.of(V, A, V)
Method	of3	Method object for Path.of(V, A, V, A, V)
private TemplateTests.PathTemplateTest	path	Instance of TemplateTests.PathTemplateTest
Method	traverser	Method object for Path.traverser()

Fields inherited from class h07.util.TestClass

classDescriptor, className, constructor, fields, methods, RANDOM

Constructor Summary

Constructors

Constructor	Description
PathImplTest()

Method Summary

Modifier and Type	Method	Description
Object	newInstance(Object... params)	Returns a new PathImpl object.
void	testConcat(Character[] nodes, int[] arcWeights)	Tests for PathImpl.concat(Object, Object).
void	testDefinition()	Tests the definition of PathImpl.
void	testIterator()	Tests for PathImpl.iterator().

Methods inherited from class h07.util.TestClass

getClassForName, getFieldByCriteria, getFieldByName, getMethodByCriteria, getMethodByName, getMethodSignature, invokeExpectingException, newInstanceExpectingException, testInstance

Methods inherited from class java.lang.Object

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

Field Detail

traverser

public final Method traverser

Method object for Path.traverser()

concat

public final Method concat

Method object for Path.concat(V, A)

iterator

public final Method iterator

Method object for Path.iterator()

of1

public final Method of1

Method object for Path.of(V)

of2

public final Method of2

Method object for Path.of(V, A, V)

of3

public final Method of3

Method object for Path.of(V, A, V, A, V)

path

private final TemplateTests.PathTemplateTest path

Instance of TemplateTests.PathTemplateTest

_traverser

private final TemplateTests.TraverserTemplateTest _traverser

Instance of TemplateTests.TraverserTemplateTest

Constructor Detail

PathImplTest

public PathImplTest()

Method Detail

testDefinition

@Test
public void testDefinition()

Tests the definition of PathImpl.

• Asserts that the class...
  • is package-private
  • is not abstract
  • is generic and has the type parameters V and A
  • either extends AbstractPath or implements Path directly

Specified by:

testDefinition in class TestClass

testConcat

@ParameterizedTest
@ArgumentsSource(PathProvider.class)
public void testConcat(Character[] nodes,
                       int[] arcWeights)
                throws ReflectiveOperationException

Tests for PathImpl.concat(Object, Object). Requires PathImpl.traverser().
Asserts that the object returned by the tested method is a new PathImpl object. Further asserts that the order and weights of nodes didn't change and the new node was appended to the end. Also asserts that the method throws a NullPointerException if invoked with null.

Parameters:

nodes - an array of nodes (supplied by the arguments provider)

arcWeights - an array of weights from a node at index i to the one at index i + 1 (supplied by the arguments provider)

Throws:

ReflectiveOperationException - if any invocation fails

testIterator

@Test
public void testIterator()
                  throws ReflectiveOperationException

Tests for PathImpl.iterator().
Asserts that the iterator returned by the tested method iterates through all given nodes and throws a NoSuchElementException when the iterator has reached its end.

Throws:

ReflectiveOperationException - if any invocation fails

newInstance

public Object newInstance(Object... params)

Returns a new PathImpl object.
It is necessary to override TestClass.newInstance(Object...) because no constructors have been specified by the assignment, so using Path.of(V), Path.of(V, A, V) or Path.of(V, A, V, A, V) is the way to go.

Overrides:

newInstance in class TestClass

Parameters:

params - the parameters to supply to the constructor, either 1, 3 or 5 parameters as specified by the static initializer methods of Path

Returns:

a new PathImpl instance