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

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

Source:PriceFeedIT.java

1package integration;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.Assertions.assertThatException;4import java.io.IOException;5import java.io.InputStream;6import java.math.BigDecimal;7import java.nio.charset.StandardCharsets;8import java.util.List;9import org.apache.commons.io.IOUtils;10import org.junit.jupiter.api.BeforeAll;11import org.junit.jupiter.api.Test;12import com.fasterxml.jackson.core.type.TypeReference;13import com.fasterxml.jackson.databind.ObjectMapper;14import lombok.Data;15import pl.sii.price.adapters.api.PriceFeedResponse;16import pl.sii.price.adapters.messagebroker.converter.ConversionException;17import pl.sii.price.config.MarketPriceHandlerExerciseConfig;18import pl.sii.price.domain.entity.PriceFeedNotExists;19public class PriceFeedIT {20    private static MarketPriceHandlerExerciseConfig marketPriceHandlerExercise;21    22    private static ObjectMapper objectMapper;23    24    @BeforeAll25    public static void init() {26        marketPriceHandlerExercise = new MarketPriceHandlerExerciseConfig();        27        objectMapper = new ObjectMapper();28    }29    30    @Test31    void sendPriceFeedCorrectly() throws IOException {32        // given       33        String message = readFile("test-data.csv");34        List<ExpectedResult> expectedResults = objectMapper.readValue(35                readFile("expected-result.json"),36                new TypeReference<List<ExpectedResult>>(){});37        38        // when39        marketPriceHandlerExercise.getPriceFeedReceiver().onMessage(message);40        41        // then42        expectedResults.stream().forEach(this::checkExpectedResult);43    }44    45    @Test46    void sendWrongPriceFeed() throws IOException {47        // given       48        String message = "wrong data";49        50        // then51        assertThatException()52            .isThrownBy(() -> {53                // when54                marketPriceHandlerExercise.getPriceFeedReceiver().onMessage(message);55            })56            .isExactlyInstanceOf(ConversionException.class)57            .withMessage(String.format("Can't convert: %s into PriceFeed", message));58    }59    60    @Test61    void getWrongPriceFeed() throws IOException {62        // given       63        String instrumentName = "wrong data";64        65        // then66        assertThatException()            67            .isThrownBy(() -> {68                // when69                marketPriceHandlerExercise.getPriceFeedEndpoint().getTheLatestPriceFeed(instrumentName);70            })71            .isExactlyInstanceOf(PriceFeedNotExists.class)72            .withMessage(String.format("Can't find price feed for instrumentName: %s", instrumentName));73    }74    75    private void checkExpectedResult(ExpectedResult expectedResult) {76        PriceFeedResponse expectedResponse = PriceFeedResponse.builder()77                .buyPrice(expectedResult.getBuyPrice())78                .sellPrice(expectedResult.getSellPrice())79                .build();80        assertThat(marketPriceHandlerExercise.getPriceFeedEndpoint()...

Source:Assertions_assertThatException_Test.java

...11 * Copyright 2012-2022 the original author or authors.12 */13package org.assertj.core.api;14import static java.lang.String.format;15import static org.assertj.core.api.Assertions.assertThatException;16import static org.assertj.core.api.BDDAssertions.then;17import static org.assertj.core.test.ThrowingCallableFactory.codeThrowing;18import static org.assertj.core.util.AssertionsUtil.expectAssertionError;19import org.assertj.core.api.ThrowableAssert.ThrowingCallable;20import org.junit.jupiter.api.Test;21class Assertions_assertThatException_Test {22  @Test23  void should_pass_when_throw_Exception() {24    assertThatException().isThrownBy(codeThrowing(new Exception()));25  }26  @Test27  void should_pass_when_throw_Exception_Subclass() {28    assertThatException().isThrownBy(codeThrowing(new RuntimeException()));29  }30  @Test31  void should_fail_when_throw_wrong_type() {32    // GIVEN33    ThrowingCallable throwingCallable = () -> assertThatException().isThrownBy(codeThrowing(new Error()));34    // WHEN35    AssertionError assertionError = expectAssertionError(throwingCallable);36    // THEN37    then(assertionError).hasMessageContainingAll(Error.class.getName(), Exception.class.getName());38  }39  @Test40  void should_fail_when_no_exception_thrown() {41    // GIVEN42    ThrowingCallable throwingCallable = () -> assertThatException().isThrownBy(() -> {});43    // WHEN44    AssertionError assertionError = expectAssertionError(throwingCallable);45    // THEN46    then(assertionError).hasMessage(format("%nExpecting code to raise a throwable."));47  }48}

assertThatException

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.assertThatExceptionOfType;3public class Test1 {4    public void test1() {5        assertThatExceptionOfType(NullPointerException.class).isThrownBy(() -> {6            throw new NullPointerException("NPE");7        }).withMessage("NPE");8    }9}10  assertThatCode(...).doesNotThrowAnyException()11  assertThatCode(...).doesNotThrowAnyException()12  assertThatCode(...).doesNotThrowAnyException()13  assertThatCode(...).doesNotThrowAnyException()14  assertThatCode(...).doesNotThrowAnyException()

assertThatException

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.*;3public class AssertJExceptionTest {4    public void testException() {5        assertThatExceptionOfType(IllegalArgumentException.class)6                .isThrownBy(() -> {7                    throw new IllegalArgumentException("Illegal argument");8                })9                .withMessage("Illegal argument")10                .withMessageContaining("argument")11                .withNoCause();12    }13}14	at org.junit.Assert.assertEquals(Assert.java:115)15	at org.junit.Assert.assertEquals(Assert.java:144)16	at org.assertj.core.api.ThrowableAssert.hasMessage(ThrowableAssert.java:86)17	at org.assertj.core.api.ThrowableAssert.hasMessage(ThrowableAssert.java:65)18	at AssertJExceptionTest.testException(AssertJExceptionTest.java:16)19Related Posts: JUnit 5 assertThrows() method20JUnit 5 assertTimeout() method21JUnit 5 assertTimeoutPreemptively() method22JUnit 5 assertDoesNotThrow() method23JUnit 5 assertAll() method24JUnit 5 assertArrayEquals() method25JUnit 5 assertLinesMatch() method26JUnit 5 assertIterableEquals() method27JUnit 5 assertTimeoutPreemptively() method28JUnit 5 assertTimeout() method29JUnit 5 assertThrows() method30JUnit 5 assertDoesNotThrow() method31JUnit 5 assertArrayEquals() method32JUnit 5 assertIterableEquals() method33JUnit 5 assertLinesMatch() method34JUnit 5 assertThrows() method35JUnit 5 assertDoesNotThrow() method36JUnit 5 assertTimeoutPreemptively() method37JUnit 5 assertTimeout() method38JUnit 5 assertArrayEquals() method39JUnit 5 assertLinesMatch() method40JUnit 5 assertIterableEquals() method41JUnit 5 assertThrows() method42JUnit 5 assertDoesNotThrow() method43JUnit 5 assertTimeoutPreemptively() method44JUnit 5 assertTimeout() method45JUnit 5 assertArrayEquals() method46JUnit 5 assertIterableEquals() method47JUnit 5 assertLinesMatch() method48JUnit 5 assertThrows() method49JUnit 5 assertDoesNotThrow() method50JUnit 5 assertTimeoutPreemptively() method51JUnit 5 assertTimeout() method52JUnit 5 assertArrayEquals() method

assertThatException

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.jupiter.api.Test;3public class AppTest {4    public void testAssertThatException() {5        Assertions.assertThatExceptionOfType(NullPointerException.class)6                .isThrownBy(() -> {7                    throw new NullPointerException();8                });9    }10}11import org.assertj.core.api.Assertions;12import org.junit.jupiter.api.Test;13public class AppTest {14    public void testAssertThatException() {15        Assertions.assertThatExceptionOfType(NullPointerException.class)16                .isThrownBy(() -> {17                    throw new IndexOutOfBoundsException();18                });19    }20}21import org.assertj.core.api.Assertions;22import org.junit.jupiter.api.Test;23public class AppTest {24    public void testAssertThatException() {25        Assertions.assertThatExceptionOfType(NullPointerException.class)26                .isThrownBy(() -> {27                    throw new NullPointerException();28                }).withMessage("hello");29    }30}31import org.assertj.core.api.Assertions;32import org.junit.jupiter.api.Test;33public class AppTest {34    public void testAssertThatException() {35        Assertions.assertThatExceptionOfType(NullPointerException.class)36                .isThrownBy(() -> {37                    throw new NullPointerException();38                }).withMessage("hello");39    }40}

assertThatException

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class Test1 {4    public void test() {5        Assertions.assertThatExceptionOfType(NullPointerException.class).isThrownBy(() -> {6            throw new NullPointerException("test");7        }).withMessage("test");8    }9}

assertThatException

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class TestClass {4    @Test(expected = ArithmeticException.class)5    public void test1() {6        int i = 1 / 0;7    }8    public void test2() {9        Assertions.assertThatExceptionOfType(ArithmeticException.class).isThrownBy(() -> {10            int i = 1 / 0;11        });12    }13}14    at org.junit.Assert.assertEquals(Assert.java:115)15    at org.junit.Assert.assertEquals(Assert.java:144)16    at TestClass.test2(TestClass.java:13)17import org.assertj.core.api.Assertions;18import org.junit.Test;19public class TestClass {20    public void test1() {21        Assertions.assertThatExceptionOfType(ArithmeticException.class).isThrownBy(() -> {22            int i = 1 / 0;23        }).withMessage("/ by zero");24    }25}26    at org.junit.Assert.assertEquals(Assert.java:115)27    at org.junit.Assert.assertEquals(Assert.java:144)28    at TestClass.test1(TestClass

assertThatException

Using AI Code Generation

1import org.assertj.core.api.Assertions;2public class App {3    public static void main(String[] args) {4        Assertions.assertThatException(() -> { throw new RuntimeException("boom!"); })5                  .isInstanceOf(RuntimeException.class)6                  .hasMessage("boom!");7    }8}9	at org.assertj.core.api.Assertions.assertThatException(Assertions.java:1369)10	at App.main(1.java:5)

assertThatException

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.assertThatException;3public class AppTest {4    public void testAssertThatException() {5        assertThatException(() -> {6            throw new Exception("exception");7        }).isInstanceOf(Exception.class).hasMessage("exception");8    }9}10	at org.junit.Assert.assertEquals(Assert.java:115)11	at org.junit.Assert.assertEquals(Assert.java:144)12	at org.assertj.core.api.ThrowableAssert.hasMessage(ThrowableAssert.java:99)13	at AppTest.lambda$testAssertThatException$0(AppTest.java:13)14	at org.assertj.core.api.ThrowableAssert.catchThrowable(ThrowableAssert.java:57)15	at org.assertj.core.api.Assertions.assertThatException(Assertions.java:1252)16	at AppTest.testAssertThatException(AppTest.java:11)17import org.junit.jupiter.api.Test;18import static org.junit.jupiter.api.Assertions.assertThrows;19public class AppTest {20    public void testAssertThrows() {21        Exception exception = assertThrows(Exception.class, () -> {22            throw new Exception("exception");23        });24        assertEquals("exception", exception.getMessage());25    }26}27	at org.junit.Assert.assertEquals(Assert.java:115)28	at org.junit.Assert.assertEquals(Assert.java:144)29	at AppTest.testAssertThrows(AppTest.java:14)30import org.junit.Test;31import static org.assertj.core.api.Assertions.assertThatExceptionOfType;32public class AppTest {33    public void testAssertThatExceptionOfType() {34        assertThatExceptionOfType(Exception.class).isThrownBy(() -> {35            throw new Exception("exception");36        }).withMessage("exception");37    }38}

assertThatException

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class Test1 {4public void test1() {5Assertions.assertThatExceptionOfType(NullPointerException.class)6.isThrownBy(() -> {7throw new NullPointerException();8});9}10}11import org.assertj.core.api.Assertions;12import org.junit.Test;13public class Test1 {14public void test1() {15Assertions.assertThatExceptionOfType(NullPointerException.class)16.isThrownBy(() -> {17throw new NullPointerException();18})19.withMessage("null");20}21}22import org.assertj.core.api.Assertions;23import org.junit.Test;24public class Test1 {25public void test1() {26Assertions.assertThatExceptionOfType(NullPointerException.class)27.isThrownBy(() -> {28throw new NullPointerException();29})30.withMessage("null")31.withNoCause();32}33}34import org.assertj.core.api.Assertions;35import org.junit.Test;

assertThatException

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.ThrowableAssert.ThrowingCallable;3import java.util.Arrays;4import java.util.List;5public class 1 {6public static void main(String[] args) {7List<String> list = Arrays.asList("a", "b", "c");8ThrowingCallable callable = () -> list.get(3);9Assertions.assertThatExceptionOfType(IndexOutOfBoundsException.class).isThrownBy(callable);10}11}12	at org.junit.Assert.assertEquals(Assert.java:115)13	at org.junit.Assert.assertEquals(Assert.java:144)14	at org.assertj.core.api.ThrowableAssert.isThrownBy(ThrowableAssert.java:89)15	at org.assertj.core.api.Assertions.assertThatExceptionOfType(Assertions.java:1973)16	at 1.main(1.java:14)17Example 2: Using assertThatExceptionOfType() method18import org.assertj.core.api.Assertions;19import org.assertj.core.api.ThrowableAssert.ThrowingCallable;20import java.util.Arrays;21import java.util.List;22public class 2 {23public static void main(String[] args) {24List<String> list = Arrays.asList("a", "b", "c");25ThrowingCallable callable = () -> list.get(3);26Assertions.assertThatExceptionOfType(IndexOutOfBoundsException.class).isThrownBy(callable);27}28}29	at org.junit.Assert.assertEquals(Assert.java:115)30	at org.junit.Assert.assertEquals(Assert.java:144)31	at org.assertj.core.api.ThrowableAssert.isThrownBy(ThrowableAssert.java:89)

assertThatException

Using AI Code Generation

1package learning.assertj;2import static org.assertj.core.api.Assertions.assertThatException;3import org.junit.Test;4public class AssertJTest {5    public void testAssertJ() {6        assertThatException().isThrownBy(() -> { throw new Exception("Exception"); })7            .withMessage("Exception")8            .withMessageContaining("Excep")9            .withMessageStartingWith("Excep")10            .withMessageEndingWith("tion")11            .withCauseInstanceOf(Exception.class)12            .withNoCause();13    }14}

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