KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use assertion method of org.assertj.core.matcher.AssertionMatcher class

Best Assertj code snippet using org.assertj.core.matcher.AssertionMatcher.assertion

Source:AssertionMatcher_matches_Test.java

...21    private static final Integer ZERO = 0;22    private static final Integer ONE = 1;23    private final AssertionMatcher<Integer> isZeroMatcher = new AssertionMatcher<Integer>() {24        @Override25        public void assertion(Integer actual) throws AssertionError {26            Assertions.assertThat(actual).isZero();27        }28    };29    private boolean removeAssertJRelatedElementsFromStackTrace;30    @Test31    public void matcher_should_pass_when_assertion_passes() {32        Assertions.assertThat(isZeroMatcher.matches(AssertionMatcher_matches_Test.ZERO)).isTrue();33    }34    @Test35    public void matcher_should_not_fill_description_when_assertion_passes() {36        Description description = Mockito.mock(Description.class);37        Assertions.assertThat(isZeroMatcher.matches(AssertionMatcher_matches_Test.ZERO)).isTrue();38        isZeroMatcher.describeTo(description);39        Mockito.verifyZeroInteractions(description);40    }41    @Test42    public void matcher_should_fail_when_assertion_fails() {43        Assertions.assertThat(isZeroMatcher.matches(AssertionMatcher_matches_Test.ONE)).isFalse();44    }45    /**46     * {@link Failures#removeAssertJRelatedElementsFromStackTrace} must be set to true47     * in order for this test to pass. It is in {@link this#setUp()}.48     */49    @Test50    public void matcher_should_fill_description_when_assertion_fails() {51        Description description = Mockito.mock(Description.class);52        Assertions.assertThat(isZeroMatcher.matches(AssertionMatcher_matches_Test.ONE)).isFalse();53        isZeroMatcher.describeTo(description);54        Mockito.verify(description).appendText("AssertionError with message: ");55        Mockito.verify(description).appendText(String.format("%nExpecting:%n <1>%nto be equal to:%n <0>%nbut was not."));56        Mockito.verify(description).appendText(String.format("%n%nStacktrace was: "));57        // @format:off58        Mockito.verify(description).appendText(ArgumentMatchers.argThat(new ArgumentMatcher<String>() {59            @Override60            public boolean matches(String s) {61                return (((s.contains(String.format("%nExpecting:%n <1>%nto be equal to:%n <0>%nbut was not."))) && (s.contains("at org.assertj.core.matcher.AssertionMatcher_matches_Test$1.assertion(AssertionMatcher_matches_Test.java:"))) && (s.contains("at org.assertj.core.matcher.AssertionMatcher.matches(AssertionMatcher.java:"))) && (s.contains("at org.assertj.core.matcher.AssertionMatcher_matches_Test.matcher_should_fill_description_when_assertion_fails(AssertionMatcher_matches_Test.java:"));62            }63        }));64        // @format:on65    }66}...

Source:JsonPathUtils.java

...25public class JsonPathUtils {26	public static <T> AssertionMatcher<String> jsonPath(String expression, Matcher<T> matcher) {27		return new AssertionMatcher<String>() {28			@Override29			public void assertion(String actual) throws AssertionError {30				new JsonPathExpectationsHelper(expression).assertValue(actual, matcher);31			}32		};33	}34	public static AssertionMatcher<String> jsonPath(String expression, @Nullable Object expectedValue) {35		return new JsonPathAssertionMatcher(expression, expectedValue);36	}37	@RequiredArgsConstructor38	public static class JsonPathAssertionMatcher extends AssertionMatcher<String> {39		private final String expression;40		private final @Nullable Object expected;41		/*42		 * (non-Javadoc)43		 * @see org.assertj.core.matcher.AssertionMatcher#assertion(java.lang.Object)44		 */45		@Override46		public void assertion(String actual) throws AssertionError {47			JsonPathExpectationsHelper helper = new JsonPathExpectationsHelper(expression);48			if (expected == null) {49				helper.doesNotHaveJsonPath(actual);50			} else {51				helper.assertValue(actual, expected);52			}53		}54		public JsonPathAssertionMatcher doesNotExist() {55			return new JsonPathAssertionMatcher(this.expression, null);56		}57	}58	public static JsonPathAssertionMatcher jsonPath(String expression) {59		return new JsonPathAssertionMatcher(expression, null);60	}...

Source:HamcrestMatcherHabits.java

...7public interface HamcrestMatcherHabits {8    default <T> AssertionMatcher<T> satisfies(Consumer<T> requirements) {9        return new AssertionMatcher<>() {10            @Override11            public void assertion(T actual) throws AssertionError {12                assertThat(actual).satisfies(requirements);13            }14        };15    }16    default <T> AssertionMatcher<T> is(Condition<T> condition) {17        return new AssertionMatcher<>() {18            @Override19            public void assertion(T actual) throws AssertionError {20                assertThat(actual).is(condition);21            }22        };23    }24    default <T> AssertionMatcher<T> satisfies(Class<T> expectedType, Consumer<T> requirements) {25        return new AssertionMatcher<>() {26            @Override27            public void assertion(T actual) throws AssertionError {28                assertThat(actual).isInstanceOfSatisfying(expectedType, requirements);29            }30        };31    }32    @SuppressWarnings("unchecked")33    default <T> AssertionMatcher<List<T>> contains(T... expected) {34        return satisfies((List<T> actual) ->35                assertThat(actual).contains(expected));36    }37}...

assertion

Using AI Code Generation

1import static org.assertj.core.matcher.AssertionMatcher.assertionMatcher;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.ArrayList;4import java.util.List;5import org.assertj.core.matcher.AssertionMatcher;6import org.junit.Test;7public class AssertJExample {8	public void testAssertJ() {9		List<String> list = new ArrayList<String>();10		list.add("a");11		list.add("b");12		list.add("c");13		list.add("d");14		list.add("e");15		list.add("f");16		list.add("g");17		list.add("h");18		AssertionMatcher<List<String>> assertionMatcher = assertionMatcher(19				list, (l) -> assertThat(l).contains("a", "b", "c", "d", "e", "f", "g", "h"));20		assertThat(list).is(assertionMatcher);21	}22}23                AssertionMatcher<List<String>> assertionMatcher = assertionMatcher(

assertion

Using AI Code Generation

1import static org.assertj.core.matcher.AssertionMatcher.*;2import static org.assertj.core.api.Assertions.assertThat;3import java.util.ArrayList;4import java.util.List;5import org.assertj.core.matcher.AssertionMatcher;6import org.junit.Test;7public class AssertionMatcherTest {8    public void test() {9        List<String> list = new ArrayList<String>();10        list.add("a");11        list.add("b");12        list.add("c");13        assertThat(list).has(assertThat("b", containsString("b")));14    }15}16import static org.assertj.core.matcher.AssertionMatcher.*;17import static org.assertj.core.api.Assertions.assertThat;18import java.util.ArrayList;19import java.util.List;20import org.assertj.core.matcher.AssertionMatcher;21import org.junit.Test;22public class AssertionMatcherTest {23    public void test() {24        List<String> list = new ArrayList<String>();25        list.add("a");26        list.add("b");27        list.add("c");28        assertThat(list).has(assertThat("b", containsString("b")));29    }30}31assertThat(list).has(assertThat("b", containsString("b")));32assertThat(list).has(assertThat("b", containsString("b")));

assertion

Using AI Code Generation

1import org.assertj.core.matcher.AssertionMatcher;2import org.junit.Test;3import static org.assertj.core.api.Assertions.assertThat;4public class AssertJMatcherTest {5    public void testAssertJMatcher() {6        assertThat("Hello World", AssertionMatcher.assertionMatcher(s -> s.equals("Hello World"), "is equal to Hello World"));7    }8}9import org.assertj.core.matcher.AssertionMatcher;10import org.junit.Test;11import static org.assertj.core.api.Assertions.assertThat;12public class AssertJMatcherTest {13    public void testAssertJMatcher() {14        assertThat("Hello World", AssertionMatcher.assertionMatcher(s -> s.equals("Hello World"), "is equal to Hello World"));15    }16}17import org.assertj.core.matcher.AssertionMatcher;18import org.junit.Test;19import static org.assertj.core.api.Assertions.assertThat;20public class AssertJMatcherTest {21    public void testAssertJMatcher() {22        assertThat("Hello World", AssertionMatcher.assertionMatcher(s -> s.equals("Hello World"), "is equal to Hello World"));23    }24}25import org.assertj.core.matcher.AssertionMatcher;26import org.junit.Test;27import static org.assertj.core.api.Assertions.assertThat;28public class AssertJMatcherTest {29    public void testAssertJMatcher() {30        assertThat("Hello World", AssertionMatcher.assertionMatcher(s -> s.equals("Hello World"), "is equal to Hello World"));31    }32}33import org.assertj.core.matcher.AssertionMatcher;34import

assertion

Using AI Code Generation

1import static org.assertj.core.matcher.AssertionMatcher.*;2import static org.assertj.core.api.Assertions.*;3import org.junit.Test;4public class AssertJAssertionMatcherTest {5    public void testAssertionMatcher() {6        assertThat("Hello", hasToString("Hello"));7    }8}

assertion

Using AI Code Generation

1import org.assertj.core.matcher.AssertionMatcher;2import org.junit.Test;3import static org.assertj.core.api.Assertions.assertThat;4public class TestAssertJ {5    public void testAssertJ() {6        assertThat("abc", AssertionMatcher.assertionMatcher(7                s -> s.length() == 3,8                "length is 3"));9    }10}

assertion

Using AI Code Generation

1import org.assertj.core.matcher.AssertionMatcher;2import org.junit.Test;3import static org.assertj.core.api.Assertions.assertThat;4public class AssertJMatcherTest {5    public void testAssertJMatcher() {6        assertThat("Hello world", AssertionMatcher.assertionMatcher(7                s -> s.startsWith("Hello"), "starts with Hello"));8    }9}10assertionMatcher(Predicate<T> predicate, String description)11assertionMatcher(Predicate<T> predicate, String description, Object... args)12assertionMatcher(Predicate<T> predicate, Function<T, String> descriptionFunction)13assertionMatcher(Predicate<T> predicate, Function<T, String> descriptionFunction, Object... args)14assertionMatcher(Predicate<T> predicate, Function<T, String> descriptionFunction, Function<T, Object[]> argsFunction)15assertionMatcher(Predicate<T> predicate, Function<T, String> descriptionFunction, Function<T, Object[]> argsFunction, Function<T, Object[]> argsDescriptionFunction)16assertionMatcher(Predicate<T> predicate, String description, Function<T, Object[]> argsFunction)17assertionMatcher(Predicate<T> predicate, String description, Function<T, Object[]> argsFunction, Function<T, Object[]> argsDescriptionFunction)18assertionMatcher(Predicate<T> predicate, String description, Object[] args, Function<T, Object[]> argsFunction)19assertionMatcher(Predicate<T> predicate, String description, Object[] args, Function<T, Object[]> argsFunction, Function<T, Object[]> argsDescriptionFunction)20assertionMatcher(Predicate<T> predicate, String description, Object[] args, Object[] argsDescription)21assertionMatcher(Predicate<T> predicate, String description, Object[] args, Object[] argsDescription, Function<T, Object[]> argsFunction)22assertionMatcher(Predicate<T> predicate, String description, Object[] args, Object[] argsDescription, Function<T, Object[]> argsFunction, Function<T, Object[]> argsDescriptionFunction)23assertionMatcher(Predicate<T> predicate, String description, Object[] args, Object[] argsDescription, Object[] argsDescription2)24assertionMatcher(Predicate<T> predicate, String description,

assertion

Using AI Code Generation

1import static org.assertj.core.matcher.AssertionMatcher.*;2import static org.assertj.core.api.Assertions.*;3import org.junit.Test;4public class TestAssertJ {5   public void testAssertJ() {6      assertThat(1, is(assertThat(1, is(1))));7      assertThat(1, is(assertThat(1, is(not(2)))));8   }9}10at org.assertj.core.matcher.AssertionMatcher.matches(AssertionMatcher.java:26)11at org.assertj.core.matcher.AssertionMatcher.matches(AssertionMatcher.java:13)12at org.assertj.core.api.AbstractAssert.matches(AbstractAssert.java:88)13at org.assertj.core.api.AbstractAssert.is(AbstractAssert.java:75)14at TestAssertJ.testAssertJ(1.java:11)15at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)16at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)17at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)18at java.lang.reflect.Method.invoke(Method.java:498)19at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)20at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)21at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)22at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)23at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)24at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)25at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)26at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)27at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)28at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)29at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)30at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)31at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)

assertion

Using AI Code Generation

1import org.assertj.core.matcher.AssertionMatcher;2class AssertionMatcherExample {3    public static void main(String[] args) {4        String str = "test";5        String str2 = "test";6        AssertionMatcher<String> assertionMatcher = new AssertionMatcher<String>() {7            public void assertion(String str) {8                assert str != null;9                assert str.equals(str2);10            }11        };12        assertionMatcher.matches(str);13    }14}15                assert str != null;16AssertionMatcherExample.java:18: error: assertion failed: str.equals(str2)17                assert str.equals(str2);18                assert str != null;19AssertionMatcherExample.java:18: error: assertion failed: str.equals(str2)20                assert str.equals(str2);

assertion

Using AI Code Generation

1package com.automationrhapsody.assertj;2import org.assertj.core.matcher.AssertionMatcher;3import org.junit.Assert;4import org.junit.Test;5public class AssertionMatcherTest {6public void testAssertionMatcher() {7String str = "Hello World!";8AssertionMatcher<String> matcher = new AssertionMatcher<String>() {9public void assertion(String s) {10Assert.assertTrue(s.isEmpty());11}12};13Assert.assertThat(str, matcher);14}15}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.