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How to use assertThatCode method of org.assertj.core.api.Assertions class

Best Assertj code snippet using org.assertj.core.api.Assertions.assertThatCode

Source:Assertions_assertThatCode_Test.java

...10 *11 * Copyright 2012-2018 the original author or authors.12 */13package org.assertj.core.api;14import static org.assertj.core.api.Assertions.assertThatCode;15import static org.assertj.core.error.ShouldNotHaveThrown.shouldNotHaveThrown;16import static org.assertj.core.test.ExpectedException.none;17import org.assertj.core.api.ThrowableAssert.ThrowingCallable;18import org.assertj.core.test.ExpectedException;19import org.junit.Rule;20import org.junit.Test;21public class Assertions_assertThatCode_Test {22  @Rule23  public ExpectedException thrown = none();24  @Test25  public void can_invoke_late_assertion_on_assertThatCode() {26    // Given27    ThrowingCallable boom = raisingException("boom");28    // Then29    assertThatCode(boom).isInstanceOf(Exception.class)30                        .hasMessageContaining("boom");31  }32  @Test33  public void should_fail_when_asserting_no_exception_raised_but_exception_occurs() {34    // Given35    Exception exception = new Exception("boom");36    ThrowingCallable boom = raisingException(exception);37    // Expect38    thrown.expectAssertionError(shouldNotHaveThrown(exception));39    // When40    assertThatCode(boom).doesNotThrowAnyException();41  }42  @Test43  public void can_use_description_in_error_message() {44    // Given45    ThrowingCallable boom = raisingException("boom");46    // Expect47    thrown.expectWithMessageStartingWith(AssertionError.class, "[Test]");48    // When49    assertThatCode(boom).as("Test").doesNotThrowAnyException();50  }51  @Test52  public void error_message_contains_stacktrace() {53    // Given54    Exception exception = new Exception("boom");55    ThrowingCallable boom = raisingException(exception);56    // Expect57    thrown.expectAssertionErrorWithMessageContaining(58      "java.lang.Exception: boom",59      "at org.assertj.core.api.Assertions_assertThatCode_Test.error_message_contains_stacktrace"60    );61    // When62    assertThatCode(boom).doesNotThrowAnyException();63  }64  @Test65  public void should_succeed_when_asserting_no_exception_raised_and_no_exception_occurs() {66    // Given67    ThrowingCallable silent = () -> {68    };69    // Then70    assertThatCode(silent).doesNotThrowAnyException();71  }72  private ThrowingCallable raisingException(final String reason) {73    return raisingException(new Exception(reason));74  }75  private ThrowingCallable raisingException(final Exception exception) {76    return () -> {77      throw exception;78    };79  }80}...

Source:A6_ExceptionAssertionTest.java

1package com.github.sparsick.junit5.examples.assertion.assertj;2import java.io.IOException;3import org.junit.jupiter.api.Test;4import static org.assertj.core.api.Assertions.assertThat;5import static org.assertj.core.api.Assertions.assertThatCode;6import static org.assertj.core.api.Assertions.assertThatExceptionOfType;7import static org.assertj.core.api.Assertions.assertThatThrownBy;8import static org.assertj.core.api.Assertions.catchThrowable;9class A6_ExceptionAssertionTest {10    @Test11    void bddStyle(){12        // GIVEN13        String[] names = { "Pier ", "Pol", "Jak" };14        // WHEN15        Throwable thrown = catchThrowable(() -> System.out.println(names[9]));16        // THEN17        assertThat(thrown).isInstanceOf(ArrayIndexOutOfBoundsException.class)18                .hasMessageContaining("9");19    }20    @Test21    void assertThatThrownByExample(){22        assertThatThrownBy(() -> { throw new Exception("boom!"); })23                .isInstanceOf(Exception.class)24                .hasMessageContaining("boom")25                .hasMessage("boom!");26    }27    @Test28    void assertThatExceptionOfTypeExample(){29        assertThatExceptionOfType(IOException.class)30                .isThrownBy(() -> { throw new IOException("boom!"); })31                .withMessage("%s!", "boom")32                .withMessageContaining("boom")33                .withNoCause();34    }35    //This later syntax has been enriched for common exceptions :36    //    assertThatNullPointerException37    //    assertThatIllegalArgumentException38    //    assertThatIllegalStateException39    //    assertThatIOException40    @Test41    void assertThatNoExceptionIsThrown(){42        assertThatCode(() -> {43            // code that should NOT throw an exception44        }).doesNotThrowAnyException();45    }46}...

Source:GradeCollectorTest.java

...3import java.io.UncheckedIOException;4import java.nio.file.AccessDeniedException;5import org.assertj.core.api.Assertions;6import static org.assertj.core.api.Assertions.assertThat;7import static org.assertj.core.api.Assertions.assertThatCode;8import org.assertj.core.api.ThrowableAssert;9import org.assertj.core.api.ThrowableAssert.ThrowingCallable;10import org.junit.jupiter.api.AfterAll;11import org.junit.jupiter.api.BeforeAll;12import org.junit.jupiter.api.Test;13import static org.junit.jupiter.api.Assertions.*;14 15/**16 *17 * @author m.bonajo@fontys.nl18 */19public class GradeCollectorTest {20    /**21     * Test of main method, of class GradeCollector.22     */23    @Test24    public void testMainDefault() {25        ThrowingCallable code = () -> {26            GradeCollector.main(new String[]{});27        };28        29        assertThatCode(code).doesNotThrowAnyException();30    }31    32    /**33     * Test of main method, of class GradeCollector.34     */35    @Test36    public void testMainOverride() {37        ThrowingCallable code = () -> {38            GradeCollector.main(new String[]{""});39        };40        41        assertThatCode(code).isExactlyInstanceOf(UncheckedIOException.class);42    }43    /**44     * Test of getGradesAsMap method, of class GradeCollector.45     */46    @Test47    public void testGetGradesAsMap() throws IOException {48        var collector = new GradeCollector("testdata.txt");49        var grades = collector.getGradesAsMap();50        assertThat(grades.size()).isEqualTo(70);51    }52}...

assertThatCode

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.assertThatCode;3public class AssertJAssertThatCodeExample {4    public void testAssertThatCode() {5        assertThatCode(() -> {6            System.out.println("Hello World");7        }).doesNotThrowAnyException();8    }9}10Recommended Posts: AssertJ assertThrows() method in Java with Examples11AssertJ assertThatThrownBy() method in Java with Examples12AssertJ assertThat() method in Java with Examples13AssertJ assertThatExceptionOfType() method in Java with Examples14AssertJ assertThatIllegalArgumentException() method in Java with Examples15AssertJ assertThatNullPointerException() method in Java with Examples16AssertJ assertThatIllegalStateException() method in Java with Examples17AssertJ assertThatObject() method in Java with Examples18AssertJ assertThatBoolean() method in Java with Examples19AssertJ assertThatArray() method in Java with Examples20AssertJ assertThatIterable() method in Java with Examples21AssertJ assertThatMap() method in Java with Examples22AssertJ assertThatClass() method in Java with Examples23AssertJ assertThatFile() method in Java with Examples24AssertJ assertThatInputStream() method in Java with Examples25AssertJ assertThatReader() method in Java with Examples26AssertJ assertThatPath() method in Java with Examples27AssertJ assertThatUrl() method in Java with Examples28AssertJ assertThatDate() method in Java with Examples29AssertJ assertThatDuration() method in Java with Examples

assertThatCode

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.assertThatCode;4public class AssertionsDemo {5    public void testAssertThatCode() {6        assertThatCode(() -> {7        }).doesNotThrowAnyException();8    }9}10How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class?11How to use assertThatExceptionOfType() method of org.assertj.core.api.Assertions class?12How to use assertThatIllegalArgumentException() method of org.assertj.core.api.Assertions class?13How to use assertThatIllegalStateException() method of org.assertj.core.api.Assertions class?14How to use assertThatNullPointerException() method of org.assertj.core.api.Assertions class?15How to use assertThatNoException() method of org.assertj.core.api.Assertions class?16How to use assertThatExceptionOfType() method of org.assertj.core.api.Assertions class in JUnit 5?17How to use assertThatIllegalArgumentException() method of org.assertj.core.api.Assertions class in JUnit 5?18How to use assertThatIllegalStateException() method of org.assertj.core.api.Assertions class in JUnit 5?19How to use assertThatNullPointerException() method of org.assertj.core.api.Assertions class in JUnit 5?20How to use assertThatNoException() method of org.assertj.core.api.Assertions class in JUnit 5?21How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?22How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?23How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?24How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?25How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?26How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?27How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?28How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?29How to use assertThatThrownBy() method of org.assertj.core.api.Assertions class in JUnit 5?

assertThatCode

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThatCode;2class AssertionDemo {3   public static void main(String[] args) {4      assertThatCode(() -> {5      }).doesNotThrowAnyException();6   }7}8import static org.assertj.core.api.Assertions.assertThatCode;9class AssertionDemo {10   public static void main(String[] args) {11      assertThatCode(() -> {12      }).isInstanceOf(RuntimeException.class);13   }14}15import static org.assertj.core.api.Assertions.assertThatCode;16class AssertionDemo {17   public static void main(String[] args) {18      assertThatCode(() -> {19      }).isInstanceOfAny(Exception.class, RuntimeException.class);20   }21}22import static org.assertj.core.api.Assertions.assertThatCode;23class AssertionDemo {24   public static void main(String[] args) {25      assertThatCode(() -> {26      }).hasMessage("exception message");27   }28}29import static org.assertj.core.api.Assertions.assertThatCode;30class AssertionDemo {31   public static void main(String[] args) {32      assertThatCode(() -> {33      }).hasMessageMatching(".*exception message.*");34   }35}36import static org.assertj.core.api.Assertions.assertThatCode;37class AssertionDemo {38   public static void main(String[] args) {39      assertThatCode(() -> {40      }).hasMessageContaining("exception message");41   }42}

assertThatCode

Using AI Code Generation

1import org.junit.jupiter.api.Test;2import static org.assertj.core.api.Assertions.*;3public class AssertJAssertThatCodeTest {4    public void assertThatCodeTest() {5        assertThatCode(() -> {6            new Object();7        }).doesNotThrowAnyException();8    }9}10import org.junit.jupiter.api.Test;11import static org.assertj.core.api.Assertions.*;12public class AssertJAssertThatExceptionOfTypeTest {13    public void assertThatExceptionOfTypeTest() {14        assertThatExceptionOfType(NullPointerException.class).isThrownBy(() -> {15            throw new NullPointerException();16        });17    }18}19import org.junit.jupiter.api.Test;20import static org.assertj.core.api.Assertions.*;21public class AssertJAssertThatIllegalArgumentExceptionTest {22    public void assertThatIllegalArgumentExceptionTest() {23        assertThatIllegalArgumentException().isThrownBy(() -> {24            throw new IllegalArgumentException();25        });26    }27}28assertThatIllegalStateException() method

assertThatCode

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.jupiter.api.Test;3import java.util.ArrayList;4public class AssertJCodeMethod {5    public void testAssertThatCode() {6        ArrayList<String> list = new ArrayList<>();7        Assertions.assertThatCode(() -> list.get(1)).doesNotThrowAnyException();8    }9}

assertThatCode

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.assertThatCode;3public class AssertJTest {4	public void testAssertThatCode() {5		assertThatCode(() -> {6			throw new Exception("error");7		}).hasMessage("error");8	}9}10	at org.assertj.core.api.ThrowableAssert.catchThrowable(ThrowableAssert.java:60)11	at org.assertj.core.api.AssertionsForClassTypes.catchThrowable(AssertionsForClassTypes.java:1024)12	at org.assertj.core.api.Assertions.catchThrowable(Assertions.java:1640)13	at org.assertj.core.api.Assertions.assertThatCode(Assertions.java:1544)14	at AssertJTest.testAssertThatCode(AssertJTest.java:12)15	at AssertJTest.testAssertThatCode(AssertJTest.java:12)16Related posts: org.assertj.core.api.Assertions.assertThatThrownBy() method Example org.assertj.core.api.Assertions.assertThatExceptionOfType() method Example org.assertj.core.api.Assertions.assertThatIllegalArgumentException() method Example org.assertj.core.api.Assertions.assertThatNullPointerException() method Example org.assertj.core.api.Assertions.assertThatIllegalStateException() method Example org.assertj.core.api.Assertions.assertThatIOException() method Example org.assertj.core.api.Assertions.assertThatArray() method Example org.assertj.core.api.Assertions.assertThatObject() method Example org.assertj.core.api.Assertions.assertThatList() method Example org.assertj.core.api.Assertions.assertThatIterable() method Example org.assertj.core.api.Assertions.assertThatMap() method Example

assertThatCode

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class TestAssertThatCode {4	public void testAssertThatCode() {5		Assertions.assertThatCode(() -> {6		}).doesNotThrowAnyException();7	}8}

assertThatCode

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class AssertJCodeExample {4  public void testAssertJCode() {5    Assertions.assertThatCode(() -> {6    }).doesNotThrowAnyException();7  }8}

assertThatCode

Using AI Code Generation

1import org.assertj.core.api.Assertions;2public class AssertJCode {3public static void main(String[] args) {4Assertions.assertThatCode(() -> {5throw new NullPointerException();6}).isInstanceOf(NullPointerException.class);7Assertions.assertThatCode(() -> {8}).doesNotThrowAnyException();9Assertions.assertThatCode(() -> {10throw new ArithmeticException();11}).isInstanceOf(ArithmeticException.class);12}13}14at org.assertj.core.api.ThrowableAssert.catchThrowable(ThrowableAssert.java:57)15at org.assertj.core.api.AssertionsForClassTypes.assertThatCode(AssertionsForClassTypes.java:502)16at AssertJCode.main(AssertJCode.java:10)17at org.assertj.core.api.ThrowableAssert.catchThrowable(ThrowableAssert.java:57)18at org.assertj.core.api.AssertionsForClassTypes.assertThatCode(AssertionsForClassTypes.java:502)19at AssertJCode.main(AssertJCode.java:19)20at org.assertj.core.api.ThrowableAssert.catchThrowable(ThrowableAssert.java:57)21at org.assertj.core.api.AssertionsForClassTypes.assertThatCode(AssertionsForClassTypes.java:502)22at AssertJCode.main(AssertJCode.java:24)23AssertJ assertAll() method24AssertJ assertThat() method25AssertJ assertThatThrownBy() method26AssertJ assertThatIllegalArgumentException() method27AssertJ assertThatNullPointerException() method28AssertJ assertThatIllegalStateException() method29AssertJ assertThatIOException() method30AssertJ assertThatExceptionOfType() method31AssertJ assertThatObject() method32AssertJ assertThatDate() method33AssertJ assertThatFile() method34AssertJ assertThatPath() method35AssertJ assertThatURL() method36AssertJ assertThatURI() method37AssertJ assertThatInputStream() method38AssertJ assertThatBigDecimal() method39AssertJ assertThatBigInteger() method40AssertJ assertThatDuration() method

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