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How to use PotentialAssignment class of org.junit.experimental.theories package

Best junit code snippet using org.junit.experimental.theories.PotentialAssignment

Source:AllMembersSupplier.java

...10import org.junit.experimental.theories.DataPoint;11import org.junit.experimental.theories.DataPoints;12import org.junit.experimental.theories.ParameterSignature;13import org.junit.experimental.theories.ParameterSupplier;14import org.junit.experimental.theories.PotentialAssignment;15import org.junit.runners.model.FrameworkMethod;16import org.junit.runners.model.TestClass;17/**18 * Supplies Theory parameters based on all public members of the target class.19 */20public class AllMembersSupplier extends ParameterSupplier {21	static class MethodParameterValue extends PotentialAssignment {22		private final FrameworkMethod fMethod;23		private MethodParameterValue(FrameworkMethod dataPointMethod) {24			fMethod= dataPointMethod;25		}26		@Override27		public Object getValue() throws CouldNotGenerateValueException {28			try {29				return fMethod.invokeExplosively(null);30			} catch (IllegalArgumentException e) {31				throw new RuntimeException(32						"unexpected: argument length is checked");33			} catch (IllegalAccessException e) {34				throw new RuntimeException(35						"unexpected: getMethods returned an inaccessible method");36			} catch (Throwable e) {37				throw new CouldNotGenerateValueException();38				// do nothing, just look for more values39			}40		}41		@Override42		public String getDescription() throws CouldNotGenerateValueException {43			return fMethod.getName();44		}45	}46	private final TestClass fClass;47	/**48	 * Constructs a new supplier for {@code type}49	 */50	public AllMembersSupplier(TestClass type) {51		fClass= type;52	}53	@Override54	public List<PotentialAssignment> getValueSources(ParameterSignature sig) {55		List<PotentialAssignment> list= new ArrayList<PotentialAssignment>();56		addFields(sig, list);57		addSinglePointMethods(sig, list);58		addMultiPointMethods(list);59		return list;60	}61	private void addMultiPointMethods(List<PotentialAssignment> list) {62		for (FrameworkMethod dataPointsMethod : fClass63				.getAnnotatedMethods(DataPoints.class))64			try {65				addArrayValues(dataPointsMethod.getName(), list, dataPointsMethod.invokeExplosively(null));66			} catch (Throwable e) {67				// ignore and move on68			}69	}70	@SuppressWarnings("deprecation")71	private void addSinglePointMethods(ParameterSignature sig,72			List<PotentialAssignment> list) {73		for (FrameworkMethod dataPointMethod : fClass74				.getAnnotatedMethods(DataPoint.class)) {75			Class<?> type= sig.getType();76			if ((dataPointMethod.producesType(type)))77				list.add(new MethodParameterValue(dataPointMethod));78		}79	}80	private void addFields(ParameterSignature sig,81			List<PotentialAssignment> list) {82		for (final Field field : fClass.getJavaClass().getFields()) {83			if (Modifier.isStatic(field.getModifiers())) {84				Class<?> type= field.getType();85				if (sig.canAcceptArrayType(type)86						&& field.getAnnotation(DataPoints.class) != null) {87					addArrayValues(field.getName(), list, getStaticFieldValue(field));88				} else if (sig.canAcceptType(type)89						&& field.getAnnotation(DataPoint.class) != null) {90					list.add(PotentialAssignment91							.forValue(field.getName(), getStaticFieldValue(field)));92				}93			}94		}95	}96	private void addArrayValues(String name, List<PotentialAssignment> list, Object array) {97		for (int i= 0; i < Array.getLength(array); i++)98			list.add(PotentialAssignment.forValue(name + "[" + i + "]", Array.get(array, i)));99	}100	private Object getStaticFieldValue(final Field field) {101		try {102			return field.get(null);103		} catch (IllegalArgumentException e) {104			throw new RuntimeException(105					"unexpected: field from getClass doesn't exist on object");106		} catch (IllegalAccessException e) {107			throw new RuntimeException(108					"unexpected: getFields returned an inaccessible field");109		}110	}111}...

Source:CustomSuplierTests.java

...11import java.util.List;12import org.junit.experimental.theories.ParameterSignature;13import org.junit.experimental.theories.ParameterSupplier;14import org.junit.experimental.theories.ParametersSuppliedBy;15import org.junit.experimental.theories.PotentialAssignment;16import org.junit.experimental.theories.Theories;17import org.junit.experimental.theories.Theory;18import org.junit.runner.RunWith;19import org.slf4j.Logger;20import org.slf4j.LoggerFactory;21// https://github.com/junit-team/junit4/wiki/Theories22@RunWith(Theories.class)23public class CustomSuplierTests {24	25	private static final Logger LOG = LoggerFactory.getLogger(CustomSuplierTests.class);	26	@Retention(RetentionPolicy.RUNTIME)27	@ParametersSuppliedBy(PrimeNumberSupplier.class)28	public @interface PrimeNumber {29		30		int start();31		32	    int count();33	}34	35	public static class PrimeNumberSupplier extends ParameterSupplier {36		@Override37		public List<PotentialAssignment> getValueSources(ParameterSignature sig) throws Throwable {38			PrimeNumber annotation = (PrimeNumber) sig.getAnnotation(PrimeNumber.class);39			List<PotentialAssignment> list = new ArrayList<>();40			int nextValue = annotation.start();41			// check the first possible value42			nextValue = nextValue < 3 ? 3 : nextValue - 1;43			int count = annotation.count();44			// generate desired number of prime values45			while (count > 0) {46				nextValue++;47				if (!isPrime(nextValue)) {48					LOG.debug("Skipped number {}", nextValue);49					continue;50				}51				LOG.info("Adding prime number {}", nextValue);52				list.add(PotentialAssignment.forValue("ints", nextValue));53				count--;54			}55			return list;56		}57		58	    /**59	     * Checks to see if the requested value is prime.60	     * @see http://stackoverflow.com/questions/24006143/generating-a-random-prime-number-in-java61	     */62	    public static boolean isPrime(int inputNum){63	        if (inputNum <= 3 || inputNum % 2 == 0) 64	            return inputNum == 2 || inputNum == 3; //this returns false if number is <=1 & true if number = 2 or 365	        int divisor = 3;66	        while ((divisor <= Math.sqrt(inputNum)) && (inputNum % divisor != 0)) ...

Source:WebDriverSuppliers.java

1package amazon.framework.core;2import org.junit.experimental.theories.ParameterSignature;3import org.junit.experimental.theories.ParameterSupplier;4import org.junit.experimental.theories.ParametersSuppliedBy;5import org.junit.experimental.theories.PotentialAssignment;6import java.lang.annotation.Retention;7import java.lang.annotation.RetentionPolicy;8import java.util.ArrayList;9import java.util.List;10public class WebDriverSuppliers {11	/**12	 * Execute the test with multiple browsers while using the JUnit Theories runtime13	 *14	 * @author Nicolas RÃ©mond (nre)15	 */16	@Retention(RetentionPolicy.RUNTIME)17	@ParametersSuppliedBy(AllWebDriversSupplier.class)18	public @interface AllWebDrivers {19	}20	public static class AllWebDriversSupplier extends ParameterSupplier {21		@Override22		public List<PotentialAssignment> getValueSources(final ParameterSignature sig) {23			final List<PotentialAssignment> assignments = new ArrayList<PotentialAssignment>();24			assignments.add(PotentialAssignment.forValue(AbstractWebDriverTestCase.WebDriverKind.Chrome.toString(), AbstractWebDriverTestCase.WebDriverKind.Chrome));25			return assignments;26		}27	}28	@Retention(RetentionPolicy.RUNTIME)29	@ParametersSuppliedBy(SingleWebDriverSupplier.class)30	public @interface SingleWebDriver {31	}32	public static class SingleWebDriverSupplier extends ParameterSupplier {33		@Override34		public List<PotentialAssignment> getValueSources(final ParameterSignature sig) {35			final List<PotentialAssignment> assignments = new ArrayList<PotentialAssignment>();36			assignments.add(PotentialAssignment.forValue(AbstractWebDriverTestCase.WebDriverKind.Chrome.toString(), AbstractWebDriverTestCase.WebDriverKind.Chrome));37			return assignments;38		}39	}40}...

Source:ParameterSupplier.java

...19 *     }20 *21 *     public static class BetweenSupplier extends <b>ParameterSupplier</b> {22 *         &#064;Override23 *         public List&lt;<b>PotentialAssignment</b>&gt; getValueSources(<b>ParameterSignature</b> sig) {24 *             List&lt;<b>PotentialAssignment</b>&gt; list = new ArrayList&lt;PotentialAssignment&gt;();25 *             Between annotation = (Between) sig.getSupplierAnnotation();26 *27 *             for (int i = annotation.first(); i &lt;= annotation.last(); i++)28 *                 list.add(<b>PotentialAssignment</b>.forValue("ints", i));29 *             return list;30 *         }31 *     }32 * </pre>33 * </p>34 *35 * @see org.junit.experimental.theories.ParametersSuppliedBy36 * @see org.junit.experimental.theories.Theories37 * @see org.junit.experimental.theories.FromDataPoints38 */39public abstract class ParameterSupplier {40    public abstract List<PotentialAssignment> getValueSources(ParameterSignature sig) throws Throwable;41}...

Source:TestedOnSupplier.java

2import java.util.ArrayList;3import java.util.List;4import org.junit.experimental.theories.ParameterSignature;5import org.junit.experimental.theories.ParameterSupplier;6import org.junit.experimental.theories.PotentialAssignment;7/**8 * @see org.junit.experimental.theories.suppliers.TestedOn9 * @see org.junit.experimental.theories.ParameterSupplier10 */11public class TestedOnSupplier extends ParameterSupplier {12    @Override13    public List<PotentialAssignment> getValueSources(ParameterSignature sig) {14        List<PotentialAssignment> list = new ArrayList<PotentialAssignment>();15        TestedOn testedOn = sig.getAnnotation(TestedOn.class);16        int[] ints = testedOn.ints();17        for (final int i : ints) {18            list.add(PotentialAssignment.forValue("ints", i));19        }20        return list;21    }22}...

Source:NumberSupplier.java

1package com.packtpub.junit.recap;2import org.junit.experimental.theories.ParameterSignature;3import org.junit.experimental.theories.ParameterSupplier;4import org.junit.experimental.theories.PotentialAssignment;5import java.util.ArrayList;6import java.util.List;7public class NumberSupplier extends ParameterSupplier {8    @Override9    public List<PotentialAssignment>10    getValueSources(ParameterSignature sig) {11        List<PotentialAssignment> list = new ArrayList<PotentialAssignment>();12        list.add(PotentialAssignment.forValue("long", 2L));13        list.add(PotentialAssignment.forValue("float", 5.00f));14        list.add(PotentialAssignment.forValue("double", 89d));15        return list;16    }17};...

Source:StringSupplier.java

1package learn.mutumju.ch01recall;2import org.junit.experimental.theories.ParameterSignature;3import org.junit.experimental.theories.ParameterSupplier;4import org.junit.experimental.theories.PotentialAssignment;5import java.util.ArrayList;6import java.util.List;7public class StringSupplier extends ParameterSupplier {8    @Override9    public List<PotentialAssignment> getValueSources(ParameterSignature sig) {10        List<PotentialAssignment> list = new ArrayList<>();11        list.add(PotentialAssignment.forValue("name1", "one"));12        list.add(PotentialAssignment.forValue("name2", "two"));13        list.add(PotentialAssignment.forValue("name3", "three"));14        return list;15    }16}...

Source:TestedOnBoolSupplier.java

1package org.wikipedia.test.theories;2import org.junit.experimental.theories.ParameterSignature;3import org.junit.experimental.theories.ParameterSupplier;4import org.junit.experimental.theories.PotentialAssignment;5import java.util.Arrays;6import java.util.List;7public class TestedOnBoolSupplier extends ParameterSupplier {8    private static final String NAME = "bools";9    @Override public List<PotentialAssignment> getValueSources(ParameterSignature sig) {10        return Arrays.asList(PotentialAssignment.forValue(NAME, false),11                PotentialAssignment.forValue(NAME, true));12    }13}...

PotentialAssignment

Using AI Code Generation

1import org.junit.experimental.theories.*;2import org.junit.experimental.theories.PotentialAssignment;3import org.junit.experimental.theories.ParameterSignature;4import org.junit.experimental.theories.ParameterSupplier;5import org.junit.experimental.theories.Theories;6import org.junit.experimental.theories.Theory;7import org.junit.runner.RunWith;8import java.util.ArrayList;9import java.util.List;10@RunWith(Theories.class)11public class TestTheory {12    public void testTheory(String s, String t) {13        System.out.println("s="+s+", t="+t);14    }15    public static String[] dataPoints = {"a", "b", "c"};16    public static List<String> dataPoints2 = new ArrayList<String>() {{17        add("d");18        add("e");19        add("f");20    }};21    public static PotentialAssignment[] dataPoints3 = {22            PotentialAssignment.forValue("g", "g"),23            PotentialAssignment.forValue("h", "h"),24            PotentialAssignment.forValue("i", "i"),25    };26    public static ParameterSupplier dataPoints4 = new ParameterSupplier() {27        public List<PotentialAssignment> getValueSources(ParameterSignature sig) {28            List<PotentialAssignment> list = new ArrayList<>();29            list.add(PotentialAssignment.forValue("j", "j"));30            list.add(PotentialAssignment.forValue("k", "k"));31            list.add(PotentialAssignment.forValue("l", "l"));32            return list;33        }34    };35}

PotentialAssignment

Using AI Code Generation

1import java.util.ArrayList;2import java.util.List;3import org.junit.experimental.theories.PotentialAssignment;4public class MyDataPoints {5    public static List<PotentialAssignment> getMyDataPoints() {6        List<PotentialAssignment> list = new ArrayList<PotentialAssignment>();7        list.add(PotentialAssignment.forValue("a", 1));8        list.add(PotentialAssignment.forValue("a", 2));9        list.add(PotentialAssignment.forValue("a", 3));10        return list;11    }12}13import org.junit.experimental.theories.DataPoint;14import org.junit.experimental.theories.Theory;15public class MyTheoryTest {16    public static int x = 1;17    public static int y = 2;18    public static int z = 3;19    public void test(int a) {20        System.out.println(a);21    }22}23import org.junit.experimental.theories.DataPoints;24import org.junit.experimental.theories.Theory;25public class MyTheoryTest2 {26    public static int[] data = new int[] { 1, 2, 3 };27    public void test(int a) {28        System.out.println(a);29    }30}31import org.junit.experimental.theories.DataPoint;32import org.junit.experimental.theories.Theory;33import org.junit.experimental.theories.suppliers.TestedOn;34public class MyTheoryTest3 {35    public static int x = 1;36    public static int y = 2;37    public static int z = 3;38    public void test(@TestedOn(ints = { 1, 2, 3 }) int a) {39        System.out.println(a);40    }41}42import org.junit.experimental.theories.DataPoint;43import org.junit.experimental.theories.Theory;44import org.junit.experimental.theories.suppliers.TestedOn;45public class MyTheoryTest4 {

PotentialAssignment

Using AI Code Generation

1import org.junit.experimental.theories.PotentialAssignment;2import org.junit.experimental.theories.internal.Assignments;3public static PotentialAssignment forInt() {4}5import org.junit.experimental.theories.PotentialAssignment;6import org.junit.experimental.theories.internal.Assignments;7public static PotentialAssignment forInt() {8}9import org.junit.experimental.theories.PotentialAssignment;10import org.junit.experimental.theories.internal.Assignments;11public static PotentialAssignment forInt() {12}13import org.junit.experimental.theories.PotentialAssignment;14import org.junit.experimental.theories.internal.Assignments;15public static PotentialAssignment forInt() {16}17import org.junit.experimental.theories.PotentialAssignment;18import org.junit.experimental.theories.internal.Assignments;19public static PotentialAssignment forInt() {20}21import org.junit.experimental.theories.PotentialAssignment;22import org.junit.experimental.theories.internal.Assignments;23public static PotentialAssignment forInt() {24}25import org.junit.experimental.theories.PotentialAssignment;26import org.junit.experimental

PotentialAssignment

Using AI Code Generation

1public class PotentialAssignmentGenerator implements TestGenerator {2	private static final Logger LOGGER = Logger.getLogger(PotentialAssignmentGenerator.class.getName());3	public List<TestMethod> generateTestMethods(TestClass testClass) {4		List<TestMethod> testMethods = new ArrayList<>();5		for (FrameworkMethod frameworkMethod : testClass.getAnnotatedMethods(Test.class)) {6			List<List<PotentialAssignment>> potentialAssignments = getPotentialAssignments(frameworkMethod);7			for (List<PotentialAssignment> assignments : potentialAssignments) {8				TestMethod testMethod = new TestMethod(frameworkMethod, testClass);9				for (PotentialAssignment assignment : assignments) {10					testMethod.addParameter(assignment.getValue());11				}12				testMethods.add(testMethod);13			}14		}15		return testMethods;16	}17	private List<List<PotentialAssignment>> getPotentialAssignments(FrameworkMethod frameworkMethod) {18		List<ParameterSource> parameterSources = getParameterSources(frameworkMethod);19		List<List<PotentialAssignment>> potentialAssignments = parameterSources.stream()20				.map(ParameterSource::getValueSources)21				.collect(Collectors.toList());22		return Lists.cartesianProduct(potentialAssignments);23	}24	private List<ParameterSource> getParameterSources(FrameworkMethod frameworkMethod) {25		List<ParameterSource> parameterSources = new ArrayList<>();26		for (Annotation[] parameterAnnotations : frameworkMethod.getMethod().getParameterAnnotations()) {27			for (Annotation annotation : parameterAnnotations) {28				ParameterSource parameterSource = getParameterSource(annotation);29				if (parameterSource != null) {30					parameterSources.add(parameterSource);31				}32			}33		}34		return parameterSources;35	}36	private ParameterSource getParameterSource(Annotation annotation) {37		if (annotation instanceof DataPoint) {38			return new DataPointParameterSource((DataPoint) annotation);39		} else if (annotation instanceof DataPoints) {40			return new DataPointsParameterSource((DataPoints) annotation);41		} else if (annotation instanceof FromDataPoints) {

PotentialAssignment

Using AI Code Generation

1import java.util.ArrayList;2import java.util.List;3import org.junit.experimental.theories.PotentialAssignment;4public class TestClass {5    public void testTheory(int x, int y, int z) {6        System.out.println("x = " + x + ", y = " + y + ", z = " + z);7    }8    public static List<PotentialAssignment> x() {9        List<PotentialAssignment> list = new ArrayList<PotentialAssignment>();10        list.add(PotentialAssignment.forValue("x", 1));11        list.add(PotentialAssignment.forValue("x", 2));12        list.add(PotentialAssignment.forValue("x", 3));13        return list;14    }15    public static List<PotentialAssignment> y() {16        List<PotentialAssignment> list = new ArrayList<PotentialAssignment>();17        list.add(PotentialAssignment.forValue("y", 4));18        list.add(PotentialAssignment.forValue("y", 5));19        list.add(PotentialAssignment.forValue("y", 6));20        return list;21    }22    public static List<PotentialAssignment> z() {23        List<PotentialAssignment> list = new ArrayList<PotentialAssignment>();24        list.add(PotentialAssignment.forValue("z", 7));25        list.add(PotentialAssignment.forValue("z", 8));26        list.add(PotentialAssignment.forValue("z", 9));27        return list;28    }29}

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