How to use withMessageStartingWith method of org.assertj.core.api.ThrowableAssertAlternative class

Best Assertj code snippet using org.assertj.core.api.ThrowableAssertAlternative.withMessageStartingWith

Source:FormatStringConcatenationTest.java

...132            "    // BUG: Diagnostic contains:",133            "    ((ThrowableAssertAlternative) null).withMessageEndingWith(\"%s \" + toString(), \"arg\");",134            "",135            "    // BUG: Diagnostic contains:",136            "    ((ThrowableAssertAlternative) null).withMessageStartingWith(\"str \" + toString());",137            "    // BUG: Diagnostic contains:",138            "    ((ThrowableAssertAlternative) null).withMessageStartingWith(\"%s \" + toString(), \"arg\");",139            "",140            "    // BUG: Diagnostic contains:",141            "    ((ThrowableAssertAlternative) null).withStackTraceContaining(\"str \" + toString());",142            "    // BUG: Diagnostic contains:",143            "    ((ThrowableAssertAlternative) null).withStackTraceContaining(\"%s \" + toString(), \"arg\");",144            "",145            "    // BUG: Diagnostic contains:",146            "    ((WithAssertions) null).fail(\"str \" + toString());",147            "    // BUG: Diagnostic contains:",148            "    ((WithAssertions) null).fail(\"%s \" + toString(), \"arg\");",149            "    ((WithAssertions) null).fail(\"str \" + toString(), new Throwable());",150            "",151            "    // BUG: Diagnostic contains:",152            "    Assertions.fail(\"str \" + toString());",...

Source:DefaultContextExpectationsTest.java

...101	@Test102	public void notHasKey() throws Exception {103		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar")),104				e -> e.hasKey("bar"))105				.withMessageStartingWith("" +106						"Key bar not found\n" +107						"Context: Context1{foo=bar}"108				);109	}110	@Test111	public void hasSize() throws Exception {112		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),113				e -> e.hasSize(2));114	}115	@Test116	public void notHasSize() throws Exception {117		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz"))118		                                    .contextWrite(Context.of("fails", true)),119				e -> e.hasSize(2))120				.withMessageStartingWith("" +121						"Expected Context of size 2, got 3\n" +122						"Context: Context3{fails=true, foo=bar, foobar=baz}"123				);124	}125	@Test126	public void contains() throws Exception {127		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),128				e -> e.contains("foo", "bar"));129	}130	@Test131	public void notContainsKey() throws Exception {132		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),133				e -> e.contains("fooz", "bar"))134				.withMessageStartingWith("" +135						"Expected value bar for key fooz, key not present\n" +136						"Context: Context2{foo=bar, foobar=baz}"137				);138	}139	@Test140	public void notContainsValue() throws Exception {141		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),142				e -> e.contains("foo", "baz"))143				.withMessageStartingWith("" +144						"Expected value baz for key foo, got bar\n" +145						"Context: Context2{foo=bar, foobar=baz}"146				);147	}148	@Test149	public void containsAllOfContext() throws Exception {150		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),151				e -> e.containsAllOf(Context.of("foo", "bar")));152	}153	@Test154	public void notContainsAllOfContext() throws Exception {155		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),156				e -> e.containsAllOf(Context.of("foo", "bar", "other", "stuff")))157				.withMessageStartingWith("" +158						"Expected Context to contain all of Context2{foo=bar, other=stuff}\n" +159						"Context: Context2{foo=bar, foobar=baz}"160				);161	}162	@Test163	public void containsAllOfMap() throws Exception {164		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),165				e -> e.containsAllOf(Collections.singletonMap("foo", "bar")));166	}167	@Test168	public void notContainsAllOfMap() throws Exception {169		Map<String, String> expected = new HashMap<>();170		expected.put("foo", "bar");171		expected.put("other", "stuff");172		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),173				e -> e.containsAllOf(expected))174				.withMessageStartingWith("" +175						"Expected Context to contain all of {other=stuff, foo=bar}\n" +176						"Context: Context2{foo=bar, foobar=baz}"177				);178	}179	@Test180	public void containsOnlyOfContext() throws Exception {181		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar")),182				e -> e.containsOnly(Context.of("foo", "bar")));183	}184	@Test185	public void notContainsOnlyOfContextSize() throws Exception {186		Context expected = Context.of("foo", "bar", "other", "stuff");187		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar")),188				e -> e.containsOnly(expected))189				.withMessageStartingWith("" +190						"Expected Context to contain same values as Context2{foo=bar, other=stuff}, but they differ in size\n" +191						"Context: Context1{foo=bar}"192				);193	}194	@Test195	public void notContainsOnlyOfContextContent() throws Exception {196		Context expected = Context.of("foo", "bar", "other", "stuff");197		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),198				e -> e.containsOnly(expected))199				.withMessageStartingWith("" +200						"Expected Context to contain same values as Context2{foo=bar, other=stuff}, but they differ in content\n" +201						"Context: Context2{foo=bar, foobar=baz}"202				);203	}204	@Test205	public void containsOnlyOfMap() throws Exception {206		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar")),207				e -> e.containsOnly(Collections.singletonMap("foo", "bar")));208	}209	@Test210	public void notContainsOnlyOfMapSize() throws Exception {211		Map<String, String> expected = new HashMap<>();212		expected.put("foo", "bar");213		expected.put("other", "stuff");214		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar")),215				e -> e.containsOnly(expected))216				.withMessageStartingWith("" +217						"Expected Context to contain same values as {other=stuff, foo=bar}, but they differ in size\n" +218						"Context: Context1{foo=bar}"219				);220	}221	@Test222	public void notContainsOnlyOfMapContent() throws Exception {223		Map<String, String> expected = new HashMap<>();224		expected.put("foo", "bar");225		expected.put("other", "stuff");226		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar", "foobar", "baz")),227				e -> e.containsOnly(expected))228				.withMessageStartingWith("" +229						"Expected Context to contain same values as {other=stuff, foo=bar}, but they differ in content\n" +230						"Context: Context2{foo=bar, foobar=baz}"231				);232	}233	@Test234	public void assertThat() throws Exception {235		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar")),236				e -> e.assertThat(c -> Assertions.assertThat(c).isNotNull()));237	}238	@Test239	public void notAssertThat() throws Exception {240		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar")),241				e -> e.assertThat(c -> { throw new AssertionError("boom"); }))242				.withMessage("boom");243	}244	@Test245	public void matches() throws Exception {246		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar")),247				e -> e.matches(Objects::nonNull));248	}249	@Test250	public void notMatches() throws Exception {251		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar")),252				e -> e.matches(Objects::isNull))253				.withMessageStartingWith("" +254						"Context doesn't match predicate\n" +255						"Context: Context1{foo=bar}"256				);257	}258	@Test259	public void matchesWithDescription() throws Exception {260		assertContextExpectation(s -> s.contextWrite(Context.of("foo", "bar")),261				e -> e.matches(Objects::nonNull, "desc"));262	}263	@Test264	public void notMatchesWithDescription() throws Exception {265		assertContextExpectationFails(s -> s.contextWrite(Context.of("foo", "bar")),266				e -> e.matches(Objects::isNull, "desc"))267				.withMessageStartingWith("" +268						"Context doesn't match predicate desc\n" +269						"Context: Context1{foo=bar}"270				);271	}272	@Test273	public void notMatchesWithDescriptionAndScenarioName() {274		Flux<Integer> source = Flux.range(1, 10)275		                           .contextWrite(Context.of("foo", "bar"));276		Step<Integer> step = StepVerifier.create(source);277		final DefaultContextExpectations<Integer> base = new DefaultContextExpectations<>(step, new MessageFormatter("scenario", null, null));278		assertThatExceptionOfType(AssertionError.class)279				.isThrownBy(280						base.matches(Objects::isNull, "someDescription")281						    .then()282						    .expectNextCount(10)::verifyComplete)283				.withMessageStartingWith("" +284						"[scenario] Context doesn't match predicate someDescription\n" +285						"Context: Context1{foo=bar}"286				);287	}288	@Test289	public void capturedOperator() {290		assertContextExpectationFails(291				s -> s.doOnEach(__ -> {}),292				e -> e.hasKey("foo")293		).withMessageEndingWith("Captured at: range");294	}295	@Test296	public void capturedOperatorWithDebug() {297		Hooks.onOperatorDebug();...

withMessageStartingWith

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.Assertions.assertThatExceptionOfType;3import static org.assertj.core.api.Assertions.catchThrowable;4import static org.assertj.core.api.Assertions.withMessageStartingWith;5import java.io.IOException;6import org.junit.Test;7public class App {8    public void test1() {9        Throwable thrown = catchThrowable(() -> {10            throw new IOException("boom!");11        });12        assertThat(thrown).isInstanceOf(IOException.class)13                .hasMessage("boom!")14                .hasMessageContaining("boom")15                .hasMessageStartingWith("boom")16                .hasMessageEndingWith("!")17                .hasMessageMatching(".*boom!$");18    }19    public void test2() {20        Throwable thrown = catchThrowable(() -> {21            throw new IOException("boom!");22        });23        assertThatExceptionOfType(IOException.class).isThrownBy(() -> {24            throw new IOException("boom!");25        }).withMessage("boom!")26                .withMessageContaining("boom")27                .withMessageStartingWith("boom")28                .withMessageEndingWith("!")29                .withMessageMatching(".*boom!$");30    }31    public void test3() {32        Throwable thrown = catchThrowable(() -> {33            throw new IOException("boom!");34        });35        assertThatExceptionOfType(IOException.class).isThrownBy(() -> {36            throw new IOException("boom!");37        }).withCauseInstanceOf(IOException.class)38                .withCause(new IOException("boom!"))39                .withMessage("boom!")40                .withMessageContaining("boom")41                .withMessageStartingWith("boom")42                .withMessageEndingWith("!")43                .withMessageMatching(".*boom!$");44    }45}46	at org.junit.Assert.assertEquals(Assert.java:115)47	at org.junit.Assert.assertEquals(Assert.java:144)48	at App.test1(App.java:17)49	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)50	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)51	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)52	at java.lang.reflect.Method.invoke(Method.java:498)53	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)54	at org.junit.internal.runners.model.ReflectiveCallable.run(

withMessageStartingWith

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.Assertions.withMessageStartingWith;4public class AssertJTest {5    public void testWithMessageStartingWith() {6        try {7            throw new IllegalArgumentException("This is a test");8        } catch (IllegalArgumentException e) {

withMessageStartingWith

Using AI Code Generation

1package org.example;2import static org.assertj.core.api.Assertions.assertThatThrownBy;3public class App {4    public static void main(String[] args) {5        assertThatThrownBy(() -> {6            throw new Exception("exception message");7        }).withMessageStartingWith("exception");8    }9}10org.example.AppTest > testMethod() FAILED

withMessageStartingWith

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2import org.junit.Test;3import static org.assertj.core.api.Assertions.assertThat;4import static org.assertj.core.api.Assertions.assertThatThrownBy;5public class AssertJWithMessageStartingWithExample {6    public void testWithMessageStartingWith() {7        Throwable throwable = new Throwable("Error Message");8        assertThatThrownBy(() -> {9            throw throwable;10        }).isInstanceOf(Throwable.class).hasMessage("Error Message").hasMessageStartingWith("Error").hasMessageContaining("Message").hasMessageEndingWith("Error Message");11    }12}

withMessageStartingWith

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2class Test {3  public static void main(String[] args) {4    ThrowableAssertAlternative throwableAssertAlternative = null;5    throwableAssertAlternative.withMessageStartingWith("test");6  }7}8import org.assertj.core.api.ThrowableAssert;9class Test {10  public static void main(String[] args) {11    ThrowableAssert throwableAssert = null;12    throwableAssert.withMessageStartingWith("test");13  }14}15import org.assertj.core.api.ThrowableAssert.ThrowingCallable;16class Test {17  public static void main(String[] args) {18    ThrowingCallable throwingCallable = null;19    throwingCallable.withMessageStartingWith("test");20  }21}22import org.assertj.core.api.ThrowableAssert.ThrowingCallable.ThrowingCallableWithThrowable;23class Test {24  public static void main(String[] args) {25    ThrowingCallableWithThrowable throwingCallableWithThrowable = null;26    throwingCallableWithThrowable.withMessageStartingWith("test");27  }28}29import org.assertj.core.api.ThrowableAssert.ThrowingCallable.ThrowingCallableWithThrowable.ThrowingCallableWithThrowableWithMessage;30class Test {31  public static void main(String[] args) {32    ThrowingCallableWithThrowableWithMessage throwingCallableWithThrowableWithMessage = null;33    throwingCallableWithThrowableWithMessage.withMessageStartingWith("test");34  }35}36import org.assertj.core.api.ThrowableAssert.ThrowingCallable.ThrowingCallableWithThrowable.ThrowingCallableWithThrowableWithMessage.ThrowingCallableWithThrowableWithMessageWithCause;37class Test {38  public static void main(String[] args) {

withMessageStartingWith

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2import org.junit.Test;3public class AssertJThrowableAssertAlternativeTest {4    public void testWithMessageStartingWith() {5        ThrowableAssertAlternative<Throwable> t = org.assertj.core.api.Assertions.assertThatThrownBy(() -> {6            throw new IllegalArgumentException("foo");7        });8        t.withMessageStartingWith("foo");9    }10}11at org.junit.Assert.assertEquals(Assert.java:115)12at org.junit.Assert.assertEquals(Assert.java:144)13at com.javacodegeeks.junit.AssertJThrowableAssertAlternativeTest.testWithMessageStartingWith(AssertJThrowableAssertAlternativeTest.java:15)14 at org.assertj.core.api.Assertions.assertThatThrownBy(Assertions.java:1009)15 at com.javacodegeeks.junit.AssertJThrowableAssertAlternativeTest.testWithMessageStartingWith(AssertJThrowableAssertAlternativeTest.java:12)16public ThrowableAssertAlternative<T> withMessageStartingWith(String expectedMessageStart)17import org.assertj.core.api.ThrowableAssertAlternative;18import org.junit.Test;19public class AssertJThrowableAssertAlternativeTest {20    public void testWithMessageContaining() {21        ThrowableAssertAlternative<Throwable> t = org.assertj.core.api.Assertions.assertThatThrownBy(() -> {22            throw new IllegalArgumentException("foo");23        });24        t.withMessageContaining("oo");25    }26}27at org.junit.Assert.assertEquals(Assert.java:115)28at org.junit.Assert.assertEquals(Assert.java:144)

withMessageStartingWith

Using AI Code Generation

1package org.assertj.core.api;2import org.junit.Test;3import static org.assertj.core.api.Assertions.assertThatThrownBy;4public class AssertJTest {5    public void test() {6        assertThatThrownBy(() -> {7            throw new IllegalArgumentException("foo");8        }).withMessageStartingWith("bar");9    }10}111) test(org.assertj.core.api.AssertJTest)12    at org.assertj.core.api.ThrowableAssertAlternative.withMessageStartingWith(ThrowableAssertAlternative.java:76)13    at org.assertj.core.api.AssertJTest.test(AssertJTest.java:9)14package org.assertj.core.api;15import org.junit.Test;16import static org.assertj.core.api.Assertions.assertThatThrownBy;17public class AssertJTest {18    public void test() {19        assertThatThrownBy(() -> {20            throw new IllegalArgumentException("foo");21        }).withMessageContaining("bar");22    }23}241) test(org.assertj.core.api.AssertJTest)25    at org.assertj.core.api.ThrowableAssertAlternative.withMessageContaining(ThrowableAssertAlternative.java:76)26    at org.assertj.core.api.AssertJTest.test(AssertJTest.java:9)27package org.assertj.core.api;28import org.junit.Test;29import static org.assertj.core.api

withMessageStartingWith

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2import org.junit.Test;3import static org.assertj.core.api.Assertions.*;4public class AssertJExceptionTest {5  public void test() {6    assertThatThrownBy(() -> {7      throw new Exception("Hello");8    }).withMessageStartingWith("Hello");9  }10}11	at org.junit.Assert.assertEquals(Assert.java:115)12	at org.junit.Assert.assertEquals(Assert.java:144)13	at org.assertj.core.api.ThrowableAssertAlternative.withMessageStartingWith(ThrowableAssertAlternative.java:87)14	at AssertJExceptionTest.test(AssertJExceptionTest.java:13)15import org.assertj.core.api.ThrowableAssertAlternative;16import org.junit.Test;17import static org.assertj.core.api.Assertions.*;18public class AssertJExceptionTest {19  public void test() {20    assertThatThrownBy(() -> {21      throw new Exception("Hello");22    }).withMessageContaining("Hello");23  }24}25	at org.junit.Assert.assertEquals(Assert.java:115)26	at org.junit.Assert.assertEquals(Assert.java:144)27	at org.assertj.core.api.ThrowableAssertAlternative.withMessageContaining(ThrowableAssertAlternative.java:94)28	at AssertJExceptionTest.test(AssertJExceptionTest.java:13)29import org.assertj.core.api.ThrowableAssertAlternative;30import org.junit.Test;31import static org.assertj.core.api.Assertions.*;32public class AssertJExceptionTest {33  public void test() {34    assertThatThrownBy(() -> {35      throw new Exception("Hello");36    }).withMessageMatching("Hello");37  }38}39	at org.junit.Assert.assertEquals(Assert.java:

withMessageStartingWith

Using AI Code Generation

1package com.example;2import org.junit.Test;3import static org.assertj.core.api.Assertions.assertThat;4public class ExampleTest {5    public void test() {6        assertThat(new RuntimeException("message")).withMessageStartingWith("me");7    }8}9package com.example;10import org.junit.Test;11import static org.assertj.core.api.Assertions.assertThat;12public class ExampleTest {13    public void test() {14        assertThat(new RuntimeException("message")).withMessageContaining("ss");15    }16}17package com.example;18import org.junit.Test;19import static org.assertj.core.api.Assertions.assertThat;20public class ExampleTest {21    public void test() {22        assertThat(new RuntimeException("message")).withMessageEndingWith("ge");23    }24}25package com.example;26import org.junit.Test;27import static org.assertj.core.api.Assertions.assertThat;28public class ExampleTest {29    public void test() {30        assertThat(new RuntimeException("message")).withMessageMatching(".*ss.*");31    }32}33package com.example;34import org.junit.Test;35import static org.assertj.core.api.Assertions.assertThat;36public class ExampleTest {37    public void test() {38        assertThat(new RuntimeException("message")).withMessage("message");39    }40}41package com.example;42import org.junit.Test;43import static org.assertj.core.api.Assertions.assertThat;44public class ExampleTest {45    public void test() {46        assertThat(new RuntimeException("message")).withMessage("message");47    }48}49package com.example;50import org.junit.Test;51import static org.assertj.core.api.Assertions.assertThat;52public class ExampleTest {53    public void test() {54        assertThat(new RuntimeException("message")).as("test").hasMessage("message");

withMessageStartingWith

Using AI Code Generation

1package org.kodejava.example.lang;2public class WithMessageStartingWith {3    public static void main(String[] args) {4        try {5            int i = 10 / 0;6        } catch (ArithmeticException e) {7                    .assertThat(e)8                    .withMessageStartingWith("Divide by zero");9        }10    }11}

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