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

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

Source:DataPoints.java

...7/**8 * Annotating an array or iterable-typed field or method with &#064;DataPoints9 * will cause the values in the array or iterable given to be used as potential10 * parameters for theories in that class when run with the11 * {@link org.junit.experimental.theories.Theories Theories} runner.12 * <p>13 * DataPoints will only be considered as potential values for parameters for14 * which their types are assignable. When multiple sets of DataPoints exist with15 * overlapping types more control can be obtained by naming the DataPoints using16 * the value of this annotation, e.g. with17 * <code>&#064;DataPoints({"dataset1", "dataset2"})</code>, and then specifying18 * which named set to consider as potential values for each parameter using the19 * {@link org.junit.experimental.theories.FromDataPoints &#064;FromDataPoints}20 * annotation.21 * <p>22 * Parameters with no specified source (i.e. without &#064;FromDataPoints or23 * other {@link org.junit.experimental.theories.ParametersSuppliedBy24 * &#064;ParameterSuppliedBy} annotations) will use all DataPoints that are25 * assignable to the parameter type as potential values, including named sets of26 * DataPoints.27 * <p>28 * DataPoints methods whose array types aren't assignable from the target29 * parameter type (and so can't possibly return relevant values) will not be30 * called when generating values for that parameter. Iterable-typed datapoints31 * methods must always be called though, as this information is not available32 * here after generic type erasure, so expensive methods returning iterable33 * datapoints are a bad idea.34 * 35 * <pre>36 * &#064;DataPoints37 * public static String[] dataPoints = new String[] { ... };38 * 39 * &#064;DataPoints40 * public static String[] generatedDataPoints() {41 *     return new String[] { ... };42 * }43 * 44 * &#064;Theory45 * public void theoryMethod(String param) {46 *     ...47 * }48 * </pre>49 * 50 * @see org.junit.experimental.theories.Theories51 * @see org.junit.experimental.theories.Theory52 * @see org.junit.experimental.theories.DataPoint53 * @see org.junit.experimental.theories.FromDataPoints54 */55@Retention(RetentionPolicy.RUNTIME)56@Target({ FIELD, METHOD })57public @interface DataPoints {58    String[] value() default {};59    Class<? extends Throwable>[] ignoredExceptions() default {};60}...

Source:DataPoint.java

...7/**8 * Annotating an field or method with &#064;DataPoint will cause the field value9 * or the value returned by the method to be used as a potential parameter for10 * theories in that class, when run with the11 * {@link org.junit.experimental.theories.Theories Theories} runner.12 * <p>13 * A DataPoint is only considered as a potential value for parameters for14 * which its type is assignable. When multiple {@code DataPoint}s exist 15 * with overlapping types more control can be obtained by naming each DataPoint 16 * using the value of this annotation, e.g. with17 * <code>&#064;DataPoint({"dataset1", "dataset2"})</code>, and then specifying18 * which named set to consider as potential values for each parameter using the19 * {@link org.junit.experimental.theories.FromDataPoints &#064;FromDataPoints}20 * annotation.21 * <p>22 * Parameters with no specified source (i.e. without &#064;FromDataPoints or23 * other {@link org.junit.experimental.theories.ParametersSuppliedBy24 * &#064;ParameterSuppliedBy} annotations) will use all {@code DataPoint}s that are25 * assignable to the parameter type as potential values, including named sets of26 * {@code DataPoint}s.27 * 28 * <pre>29 * &#064;DataPoint30 * public static String dataPoint = "value";31 * 32 * &#064;DataPoint("generated")33 * public static String generatedDataPoint() {34 *     return "generated value";35 * }36 * 37 * &#064;Theory38 * public void theoryMethod(String param) {39 *     ...40 * }41 * </pre>42 * 43 * @see org.junit.experimental.theories.Theories44 * @see org.junit.experimental.theories.Theory45 * @see org.junit.experimental.theories.DataPoint46 * @see org.junit.experimental.theories.FromDataPoints47 */48@Retention(RetentionPolicy.RUNTIME)49@Target({FIELD, METHOD})50public @interface DataPoint {51    String[] value() default {};52    Class<? extends Throwable>[] ignoredExceptions() default {};53}...

Source:FromDataPoints.java

1package org.junit.experimental.theories;2import java.lang.annotation.ElementType;3import java.lang.annotation.Retention;4import java.lang.annotation.RetentionPolicy;5import java.lang.annotation.Target;6import org.junit.experimental.theories.internal.SpecificDataPointsSupplier;7/**8 * Annotating a parameter of a {@link org.junit.experimental.theories.Theory9 * &#064;Theory} method with <code>&#064;FromDataPoints</code> will limit the10 * datapoints considered as potential values for that parameter to just the11 * {@link org.junit.experimental.theories.DataPoints DataPoints} with the given12 * name. DataPoint names can be given as the value parameter of the13 * &#064;DataPoints annotation.14 * <p>15 * DataPoints without names will not be considered as values for any parameters16 * annotated with &#064;FromDataPoints.17 * <pre>18 * &#064;DataPoints19 * public static String[] unnamed = new String[] { ... };20 * 21 * &#064;DataPoints("regexes")22 * public static String[] regexStrings = new String[] { ... };23 * 24 * &#064;DataPoints({"forMatching", "alphanumeric"})25 * public static String[] testStrings = new String[] { ... }; 26 * 27 * &#064;Theory28 * public void stringTheory(String param) {29 *     // This will be called with every value in 'regexStrings',30 *     // 'testStrings' and 'unnamed'.31 * }32 * 33 * &#064;Theory34 * public void regexTheory(&#064;FromDataPoints("regexes") String regex,35 *                         &#064;FromDataPoints("forMatching") String value) {36 *     // This will be called with only the values in 'regexStrings' as 37 *     // regex, only the values in 'testStrings' as value, and none 38 *     // of the values in 'unnamed'.39 * }40 * </pre>41 * 42 * @see org.junit.experimental.theories.Theory43 * @see org.junit.experimental.theories.DataPoint44 * @see org.junit.experimental.theories.DataPoints45 */46@Retention(RetentionPolicy.RUNTIME)47@Target(ElementType.PARAMETER)48@ParametersSuppliedBy(SpecificDataPointsSupplier.class)49public @interface FromDataPoints {50    String value();51}...

Source:Assignments.java

1public class org.junit.experimental.theories.internal.Assignments {2  public static org.junit.experimental.theories.internal.Assignments allUnassigned(java.lang.reflect.Method, org.junit.runners.model.TestClass);3  public boolean isComplete();4  public org.junit.experimental.theories.ParameterSignature nextUnassigned();5  public org.junit.experimental.theories.internal.Assignments assignNext(org.junit.experimental.theories.PotentialAssignment);6  public java.lang.Object[] getActualValues(int, int) throws org.junit.experimental.theories.PotentialAssignment$CouldNotGenerateValueException;7  public java.util.List<org.junit.experimental.theories.PotentialAssignment> potentialsForNextUnassigned() throws java.lang.Throwable;8  public java.lang.Object[] getConstructorArguments() throws org.junit.experimental.theories.PotentialAssignment$CouldNotGenerateValueException;9  public java.lang.Object[] getMethodArguments() throws org.junit.experimental.theories.PotentialAssignment$CouldNotGenerateValueException;10  public java.lang.Object[] getAllArguments() throws org.junit.experimental.theories.PotentialAssignment$CouldNotGenerateValueException;11  public java.lang.Object[] getArgumentStrings(boolean) throws org.junit.experimental.theories.PotentialAssignment$CouldNotGenerateValueException;12}...

Source:TestedOnSupplier.java

1package org.junit.experimental.theories.suppliers;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}...

Theories

Using AI Code Generation

1import org.junit.experimental.theories.DataPoint;2import org.junit.experimental.theories.DataPoints;3import org.junit.experimental.theories.Theories;4import org.junit.experimental.theories.Theory;5import org.junit.runner.RunWith;6import org.junit.runners.Suite;7import org.junit.runners.Suite.SuiteClasses;8@RunWith(Theories.class)9public class TheoriesTest {10	public static int INT_PARAM_1 = 5;11	public static int INT_PARAM_2 = 10;12	public static int INT_PARAM_3 = 15;13	public static int INT_PARAM_4 = 20;14	public static int INT_PARAM_5 = 25;15	public static int INT_PARAM_6 = 30;16	public static int INT_PARAM_7 = 35;17	public static int INT_PARAM_8 = 40;18	public static int INT_PARAM_9 = 45;19	public static int INT_PARAM_10 = 50;20	public static int INT_PARAM_11 = 55;21	public static int INT_PARAM_12 = 60;22	public static int INT_PARAM_13 = 65;23	public static int INT_PARAM_14 = 70;24	public static int INT_PARAM_15 = 75;25	public static int INT_PARAM_16 = 80;26	public static int INT_PARAM_17 = 85;27	public static int INT_PARAM_18 = 90;28	public static int INT_PARAM_19 = 95;29	public static int INT_PARAM_20 = 100;30	public static int[] INT_PARAMS = new int[]{INT_PARAM_1, INT_PARAM_2, INT_PARAM_3, INT_PARAM_4, INT_PARAM_5, INT_PARAM_6, INT_PARAM_7, INT_PARAM_8, INT_PARAM_9, INT_PARAM_10, INT_PARAM_11, INT_PARAM_12, INT_PARAM_13, INT_PARAM_14, INT_PARAM_15, INT_PARAM_16, INT_PARAM_17, INT_PARAM_18, INT_PARAM_19, INT_PARAM_20};31	public void testTheory(int param1,

Theories

Using AI Code Generation

1package com.javatpoint;2import org.junit.Test;3import org.junit.experimental.theories.DataPoint;4import org.junit.experimental.theories.DataPoints;5import org.junit.experimental.theories.Theories;6import org.junit.experimental.theories.Theory;7import org.junit.runner.RunWith;8@RunWith(Theories.class)9public class JunitTheoriesExample {10	public static int int1 = 1;11	public static int int2 = 2;12	public static int int3 = 3;13	public static int[] ints = { 4, 5, 6 };14	public void test(int i, int j) {15		System.out.println("i = " + i + ", j = " + j);16	}17}

Theories

Using AI Code Generation

1package com.journaldev.junit.theories;2import org.junit.experimental.theories.DataPoint;3import org.junit.experimental.theories.Theories;4import org.junit.experimental.theories.Theory;5import org.junit.runner.RunWith;6@RunWith(Theories.class)7public class TestTheories {8	public static int INT_PARAM_1 = 5;9	public static int INT_PARAM_2 = 10;10	public static String STRING_PARAM_1 = "Hello";11	public static String STRING_PARAM_2 = "World";12	public void testTheory(int i, String s) {13		System.out.println("i=" + i + ", s=" + s);14	}15}

Theories

Using AI Code Generation

1package com.javacodegeeks.junit;2import static org.junit.Assert.assertEquals;3import static org.junit.Assert.assertTrue;4import static org.junit.Assume.assumeTrue;5import java.util.Arrays;6import java.util.List;7import org.junit.Before;8import org.junit.Test;9import org.junit.experimental.theories.DataPoint;10import org.junit.experimental.theories.DataPoints;11import org.junit.experimental.theories.Theories;12import org.junit.experimental.theories.Theory;13import org.junit.runner.RunWith;14@RunWith(Theories.class)15public class TheoriesTest {16    private List<Integer> list;17    public void setUp() {18        list = Arrays.asList(1, 2, 3);19    }20    public static int INT1 = 1;21    public static int INT2 = 2;22    public static int INT3 = 3;23    public void testTheory(int value) {24        assertTrue(list.contains(value));25    }26    public static int[] INT_ARRAY = { 1, 2, 3 };27    public void testTheoryWithArray(int value) {28        assertTrue(list.contains(value));29    }30    public static int[] INT_ARRAY1 = { 1, 2, 3 };31    public static int[] INT_ARRAY2 = { 4, 5, 6 };32    public void testTheoryWithMultipleArrays(int value) {33        assertTrue(list.contains(value));34    }35    public static int[] INT_ARRAY1 = { 1, 2, 3 };36    public static int[] INT_ARRAY2 = { 4, 5, 6 };37    public void testTheoryWithMultipleArrays(int value) {38        assertTrue(list.contains(value));39    }40    public static int[] INT_ARRAY1 = { 1, 2, 3 };41    public static int[] INT_ARRAY2 = { 4, 5, 6 };42    public void testTheoryWithMultipleArrays(int value) {43        assertTrue(list.contains(value));44    }45    public static int[] INT_ARRAY1 = { 1, 2, 3 };

Theories

Using AI Code Generation

1public class TheoriesTest {2    public static int[] data() {3        return new int[]{1, 2, 3};4    }5    public void testMultiply(int n) {6        assertTrue(n * n > 0);7    }8}9import spock.lang.Specification10import org.junit.experimental.theories.DataPoints11import org.junit.experimental.theories.Theories12import org.junit.experimental.theories.Theory13import org.junit.experimental.theories.DataPoint14class TheoriesTest extends Specification {15    void testMultiply(int n) {16    }17}

Theories

Using AI Code Generation

1public class TestClass {2    public static String[] data = {"", "a", "ab", "abc"};3    public void testTheory(String s) {4        System.out.println("s = " + s);5    }6}7[INFO] --- maven-surefire-plugin:2.22.0:test (default-test) @ junit-theories-example ---8@RunWith(Theories.class)9public class TestClass {10}

Theories

Using AI Code Generation

1public class TestJunit {2	public void testMethod(int x, int y) {3		assertTrue(x + y == y + x);4	}5}6public Theories.ParameterSupplier dataPointSupplier(ParameterSupplier supplier) method7public Theories.ParameterSupplier dataPoints(String name, Object... dataPoints) method8public Theories.ParameterSupplier dataPoints(String name, Object[] firstDataPoints, Object[]... moreDataPoints) method9The dataPointSupplier(ParameterSupplier supplier) method is used to define the values of the parameters using a custom parameter supplier. The dataPoints(String name, Object... dataPoints) method is used to define the values of the parameters using an array of objects. The dataPoints(String name, Object[] firstDataPoints, Object[]... moreDataPoints) method

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116797:M 03 Aug 2020 09:11:11.246 # Error accepting a client connection: (null)2

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