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How to use failBecauseExceptionWasNotThrown method of org.assertj.core.api.Assertions class
Best Assertj code snippet using org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown
Source:Java7StyleAssertions.java 
1package com.baeldung.assertj.exceptions;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.Assertions.fail;4import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;5import org.junit.Test;6public class Java7StyleAssertions {7 @Test8 public void whenDividingByZero_thenArithmeticException() {9 try {10 int numerator = 10;11 int denominator = 0;12 int quotient = numerator / denominator;13 fail("ArithmeticException expected because dividing by zero yields an ArithmeticException.");14 failBecauseExceptionWasNotThrown(ArithmeticException.class);15 } catch (Exception e) {16 assertThat(e).hasMessage("/ by zero");17 assertThat(e).isInstanceOf(ArithmeticException.class);18 }19 }20}...
failBecauseExceptionWasNotThrown
Using AI Code Generation
1package com.baeldung.assertj;2import org.assertj.core.api.Assertions;3import org.junit.Test;4public class ExceptionAssertionUnitTest {5 public void whenExceptionThrown_thenAssertionSucceeds() {6 try {7 throw new Exception("exception");8 } catch (Exception e) {9 Assertions.assertThat(e)10 .hasMessage("exception");11 }12 }13 public void whenExceptionThrown_thenFailBecauseExceptionWasNotThrown() {14 Assertions.failBecauseExceptionWasNotThrown(Exception.class);15 }16 public void whenNoExceptionThrown_thenFailBecauseExceptionWasNotThrown() {17 try {18 int i = 1 + 1;19 } catch (Exception e) {20 Assertions.failBecauseExceptionWasNotThrown(Exception.class);21 }22 }23}24Assertions.assertThat(e).hasMessage("exception");25try {26 throw new Exception("exception");27} catch (Exception e) {28 Assertions.assertThat(e).hasMessage("exception");29}30I'm not sure, but I think the exception is not thrown in the try block, so the catch block is never executed. I think you should move the Assertions.assertThat(e).hasMessage("
failBecauseExceptionWasNotThrown
Using AI Code Generation
1package org.junit.contrib.java.lang.system;2import org.junit.Rule;3import org.junit.Test;4public class FailBecauseExceptionWasNotThrownTest {5 public final FailBecauseExceptionWasNotThrown failBecauseExceptionWasNotThrown = new FailBecauseExceptionWasNotThrown();6 public void test() {7 failBecauseExceptionWasNotThrown.failBecauseExceptionWasNotThrown(NullPointerException.class);8 }9}10 at org.junit.contrib.java.lang.system.FailBecauseExceptionWasNotThrownTest.test(FailBecauseExceptionWasNotThrownTest.java:12)11package org.junit.contrib.java.lang.system;12import org.junit.Rule;13import org.junit.Test;14import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;15public class FailBecauseExceptionWasNotThrownTest {16 public final FailBecauseExceptionWasNotThrown failBecauseExceptionWasNotThrown = new FailBecauseExceptionWasNotThrown();17 public void test() {18 failBecauseExceptionWasNotThrown(NullPointerException.class);19 }20}21 at org.junit.contrib.java.lang.system.FailBecauseExceptionWasNotThrownTest.test(FailBecauseExceptionWasNotThrownTest.java:12)22package org.junit.contrib.java.lang.system;23import org.junit.Rule;24import org.junit.Test;25import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;26public class FailBecauseExceptionWasNotThrownTest {27 public final FailBecauseExceptionWasNotThrown failBecauseExceptionWasNotThrown = new FailBecauseExceptionWasNotThrown();
failBecauseExceptionWasNotThrown
Using AI Code Generation
1assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause();2assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");3assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause();4assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");5assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");6assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");7assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");8assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");9assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");10assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");11assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");12assertThatThrownBy(() -> { throw new RuntimeException("boom!"); }).isInstanceOf(RuntimeException.class).hasMessageContaining("boom").hasNoCause().hasMessage("boom");13assertThatThrownBy(() -> { throw
failBecauseExceptionWasNotThrown
Using AI Code Generation
1public void whenExceptionThrown_thenAssertionSucceeds() {2 Assertions.assertThatThrownBy(() -> {3 throw new Exception("boom!");4 }).isInstanceOf(Exception.class)5 .hasMessageContaining("boom");6}7public void givenExceptionThrown_whenExceptionThrown_thenAssertionSucceeds() {8 Assertions.assertThatExceptionOfType(Exception.class)9 .isThrownBy(() -> {10 throw new Exception("boom!");11 }).withMessageContaining("boom");12}13public void givenExceptionThrown_whenExceptionThrown_thenAssertionSucceeds() {14 Assertions.assertThatExceptionOfType(Exception.class)15 .isThrownBy(() -> {16 throw new Exception("boom!");17 }).withMessageContaining("boom");18}19public void givenExceptionThrown_whenExceptionThrown_thenAssertionSucceeds() {20 Assertions.assertThatExceptionOfType(Exception.class)21 .isThrownBy(() -> {22 throw new Exception("boom!");23 }).withMessageContaining("boom");24}25public void givenExceptionThrown_whenExceptionThrown_thenAssertionSucceeds() {26 Assertions.assertThatExceptionOfType(Exception.class)27 .isThrownBy(() -> {28 throw new Exception("boom!");29 }).withMessageContaining("boom");30}
failBecauseExceptionWasNotThrown
Using AI Code Generation
1public class DemoTest {2 public void test1() {3 try {4 failBecauseExceptionWasNotThrown(NullPointerException.class);5 } catch (AssertionError e) {6 }7 }8}
failBecauseExceptionWasNotThrown
Using AI Code Generation
1import java.util.*;2import org.junit.*;3import static org.junit.Assert.*;4import static org.junit.Assert.assertEquals;5import static org.junit.Assert.assertFalse;6import static org.junit.Assert.assertTrue;7import static org.junit.Assert.fail;8import org.junit.rules.*;9import org.junit.runner.*;10import org.junit.runners.*;11import org.junit.runners.Parameterized.*;12import org.junit.runners.model.*;13import static org.assertj.core.api.Assertions.*;14import java.util.*;15import java.util.stream.*;16import java.util.function.*;17import java.util.concurrent.*;18import java.util.concurrent.atomic.*;19import java.time.*;20import java.time.temporal.*;21import java.time.temporal.ChronoUnit;22import java.time.temporal.ChronoUnit.*;23import java.time.format.*;24import java.time.format.DateTimeFormatter;25import java.time.format.DateTimeFormatter.*;26import java.time.format.DateTimeFormatterBuilder;27import java.time.format.DateTimeFormatterBuilder.*;28import java.time.format.DateTimeParseException;29import java.time.format.DateTimeParseException.*;30import java.time.temporal.ChronoField;31import java.time.temporal.ChronoField.*;32import java.time.temporal.ChronoUnit;33import java.time.temporal.ChronoUnit.*;34import java.time.temporal.Temporal;35import java.time.temporal.TemporalAccessor;36import java.time.temporal.TemporalAdjuster;37import java.time.temporal.TemporalAdjusters;38import java.time.temporal.TemporalAmount;39import java.time.temporal.TemporalField;40import java.time.temporal.TemporalQueries;41import java.time.temporal.TemporalQuery;42import java.time.temporal.TemporalUnit;43import java.time.temporal.UnsupportedTemporalTypeException;44import java.time.temporal.UnsupportedTemporalTypeException.*;45import java.time.temporal.ValueRange;46import java.time.temporal.WeekFields;47import java.time.temporal.ChronoField.*;48import java.time.temporal.ChronoField;49import java.time.temporal.ChronoUnit.*;50import java.time.temporal.TemporalAdjusters.*;51import java.time.temporal.TemporalQueries.*;52import java.time.temporal.TemporalQuery.*;53import java.time.temporal.TemporalUnit.*;54import java.time.temporal.UnsupportedTemporalTypeException.*;55import java.time.temporal.ValueRange.*;56import java.time.temporal.WeekFields.*;57import java.time.temporal.IsoFields.*;58import java.time.temporal.JulianFields.*;59import java.time.temporal.WeekFields.*;60import java.time.temporal.IsoFields;61import java.time.temporal.JulianFields;62import java.time.temporal.WeekFields
failBecauseExceptionWasNotThrown
Using AI Code Generation
1import org.assertj.core.api.Assertions;2public class Demo {3 public static void main(String[] args) {4 try {5 } catch (Exception e) {6 Assertions.failBecauseExceptionWasNotThrown(e);7 }8 }9}10import org.assertj.core.api.Assertions;11public class Demo {12 public static void main(String[] args) {13 try {14 } catch (Exception e) {15 Assertions.failBecauseExceptionWasNotThrown(e);16 }17 }18}19import org.assertj.core.api.Assertions;20public class Demo {21 public static void main(String[] args) {22 try {23 } catch (Exception e) {24 Assertions.failBecauseExceptionWasNotThrown(e);25 }26 }27}28import org.assertj.core.api.Assertions;29public class Demo {30 public static void main(String[] args) {31 try {32 } catch (Exception e) {33 Assertions.failBecauseExceptionWasNotThrown(e);34 }35 }36}37import org.assertj.core.api.Assertions;38public class Demo {39 public static void main(String[] args) {40 try {41 } catch (Exception e) {42 Assertions.failBecauseExceptionWasNotThrown(e);43 }44 }45}46import org.assertj.core.api.Assertions;47public class Demo {48 public static void main(String[] args) {49 try {50 } catch (Exception e) {51 Assertions.failBecauseExceptionWasNotThrown(e);52 }53 }54}
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Most used method in Assertions
- Assertions
- assertThat
- assertThatPredicate
- createAssert
- testException
- assertThatThrownBy
- assertThatCode
- assertThatObject
- assertWith
- catchThrowable
- TextException
- catchThrowableOfType
- catchException
- catchRuntimeException
- catchNullPointerException
- catchIllegalArgumentException
- catchIOException
- catchReflectiveOperationException
- catchIllegalStateException
- catchIndexOutOfBoundsException
- assertThatExceptionOfType
- assertThatNoException
- assertThatNullPointerException
- assertThatIllegalArgumentException
- assertThatIOException
- assertThatIllegalStateException
- assertThatException
- assertThatRuntimeException
- assertThatReflectiveOperationException
- assertThatIndexOutOfBoundsException
- setRemoveAssertJRelatedElementsFromStackTrace
- fail
- failBecauseExceptionWasNotThrown
- shouldHaveThrown
- setMaxLengthForSingleLineDescription
- setMaxElementsForPrinting
- setPrintAssertionsDescription
- setDescriptionConsumer
- setMaxStackTraceElementsDisplayed
- extractProperty
- tuple
- setAllowExtractingPrivateFields
- setAllowComparingPrivateFields
- setExtractBareNamePropertyMethods
- entry
- atIndex
- offset
- within
- withPrecision
- withMarginOf
- withinPercentage
- byLessThan
- from
- allOf
- anyOf
- doesNotHave
- filter
- notIn
- contentOf
- linesOf
- setLenientDateParsing
- registerCustomDateFormat
- useDefaultDateFormatsOnly
- assertThatIterable
- assertThatIterator
- assertThatCollection
- assertThatList
- assertThatStream
- assertThatPath
- assertThatComparable
- isBlinking
- setBlinking
- AssertDelegateTarget_example
- toStringOf
- useRepresentation
- registerFormatterForType
- useDefaultRepresentation
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