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How to use Annotation Type DataPoints class of org.junit.experimental.theories package

Best junit code snippet using org.junit.experimental.theories.Annotation Type DataPoints

Source:DataPoints.java

1package org.junit.experimental.theories;2import static java.lang.annotation.ElementType.FIELD;3import static java.lang.annotation.ElementType.METHOD;4import java.lang.annotation.Retention;5import java.lang.annotation.RetentionPolicy;6import java.lang.annotation.Target;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: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}...

Annotation Type DataPoints

Using AI Code Generation

1import org.junit.experimental.theories.DataPoints;2import org.junit.experimental.theories.Theories;3import org.junit.experimental.theories.Theory;4import org.junit.runner.RunWith;5@RunWith(Theories.class)6public class TheoryTest {7    public static int[] data() {8        return new int[] { 1, 2, 3 };9    }10    public void test(int value) {11        System.out.println(value);12    }13}

Annotation Type DataPoints

Using AI Code Generation

1import org.junit.experimental.theories.DataPoints; 2import org.junit.experimental.theories.Theory; 3import org.junit.runner.RunWith; 4import org.junit.runners.Theories; 5import org.junit.runners.model.TestClass;6@RunWith(Theories.class) 7public class TestClassExample { 8   public static int[] data() { 9      return new int[] { 1, 2, 3 }; 10   } 11   public void test(int x) { 12      System.out.println("x = " + x); 13   } 14}

Annotation Type DataPoints

Using AI Code Generation

1public class DataPoint {2    public static int[] intArray = {1, 2, 3, 4, 5};3}4public class DataPoint {5    public static int int1 = 1;6    public static int int2 = 2;7    public static int int3 = 3;8    public static int int4 = 4;9    public static int int5 = 5;10}11public class Theory {12    public void testTheory(int i) {13        System.out.println("i = " + i);14    }15}16public class Theories {17    @RunWith(Theories.class)18    public class TheoriesTest {19        public static int[] intArray = {1, 2, 3, 4, 5};20        public void testTheory(int i) {21            System.out.println("i = " + i);22        }23    }24}25public class Theory {26    public void testTheory(int i, int j) {27        System.out.println("i = " + i + ", j = " + j);28    }29}30public class Theories {31    @RunWith(Theories.class)32    public class TheoriesTest {33        public static int[] intArray = {1, 2, 3, 4, 5};34        public void testTheory(int i, int j) {35            System.out.println("i = " + i + ", j = " + j);36        }37    }38}39public class Theory {40    public void testTheory(int i, int j, int k) {41        System.out.println("i = " + i + ", j = " + j + ", k = " + k);42    }

Annotation Type DataPoints

Using AI Code Generation

1@RunWith(Theories.class)2public class DataPointsTest {3    public static int[] data() {4        return new int[]{1, 2, 3};5    }6    public static Integer[] data2() {7        return new Integer[]{1, 2, 3};8    }9    public static String[] data3() {10        return new String[]{"a", "b", "c"};11    }12    public static int[] data4() {13        return new int[]{1, 2, 3};14    }15    public static int[] data5() {16        return new int[]{1, 2, 3};17    }18    public void test1(int a, int b, int c) {19        System.out.println("a = " + a + ", b = " + b + ", c = " + c);20    }21}

Source: List of annotations in JUnit

1@JsonInclude(JsonInclude.Include.NON_NULL)2@Data3public class Person {4   String id;5   String first;6   String last;7}8

Source: JUnit & warning exporting non public type through public api

1if (_cfgConstructorPropertiesImpliesCreator2            && config.isEnabled(MapperFeature.INFER_CREATOR_FROM_CONSTRUCTOR_PROPERTIES)3

Source:JUnit & warning exporting non public type through public api

if (_cfgConstructorPropertiesImpliesCreator
            && config.isEnabled(MapperFeature.INFER_CREATOR_FROM_CONSTRUCTOR_PROPERTIES)

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