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How to use thenIllegalArgumentException method of org.assertj.core.api.BDDAssertions class

Best Assertj code snippet using org.assertj.core.api.BDDAssertions.thenIllegalArgumentException

Source:ProductPriceAdapterImperativeTest.java

1package com.ftm.javafp.monads.either;2import org.assertj.core.api.ThrowableAssert.ThrowingCallable;3import org.junit.jupiter.api.Test;4import static org.assertj.core.api.BDDAssertions.then;5import static org.assertj.core.api.BDDAssertions.thenIllegalArgumentException;6class ProductPriceAdapterImperativeTest {7    private final ProductPriceAdapterImperative adapter = new ProductPriceAdapterImperative();8    @Test9    void should_return_product_price_for_valid_references() {10        // Given11        final var searchCriteria = aValidSearchCriteria();12        final var expected = aValidProductPrice();13        // When14        final var productPrice = adapter.getProductPrice(searchCriteria);15        // Then16        then(productPrice).isEqualTo(expected);17    }18    @Test19    void should_throw_exception_when_product_price_not_found() {20        // Given21        final var searchCriteria = aValidSearchCriteriaWithUnknownReference();22        // When23        final ThrowingCallable throwable = () -> adapter.getProductPrice(searchCriteria);24        // Then25        thenIllegalArgumentException().isThrownBy(throwable);26    }27    @Test28    void should_throw_exception_when_product_out_of_stock() {29        // Given30        final var searchCriteria = aValidSearchCriteriaWithOutOfStockReference();31        // When32        final ThrowingCallable throwable = () -> adapter.getProductPrice(searchCriteria);33        // Then34        thenIllegalArgumentException().isThrownBy(throwable);35    }36    @Test37    void should_throw_exception_when_invalid_search_criteria() {38        // Given39        final SearchCriteria invalidSearchCriteria = null;40        // When41        final ThrowingCallable throwable = () -> adapter.getProductPrice(invalidSearchCriteria);42        // Then43        thenIllegalArgumentException().isThrownBy(throwable);44    }45    private SearchCriteria aValidSearchCriteriaWithOutOfStockReference() {46        return new SearchCriteria(new ProductReference("789"));47    }48    private ProductPrice aValidProductPrice() {49        return new ProductPrice(aValidProductReference(), aValidPrice());50    }51    private Price aValidPrice() {52        return new Price("EUR", 5095, 2);53    }54    private SearchCriteria aValidSearchCriteria() {55        return new SearchCriteria(aValidProductReference());56    }57    private SearchCriteria aValidSearchCriteriaWithUnknownReference() {...

Source:NameTest.java

...5import org.junit.jupiter.params.provider.NullSource;6import org.junit.jupiter.params.provider.ValueSource;7import static com.project.kodesalon.exception.ErrorCode.INVALID_MEMBER_NAME;8import static org.assertj.core.api.BDDAssertions.then;9import static org.assertj.core.api.BDDAssertions.thenIllegalArgumentException;10class NameTest {11    @ParameterizedTest12    @ValueSource(strings = {"ê¹ì¨", "ë°íëë³ëêµ¬ë¦íëë³´ë¤ì¬ëì¤ë¬ì°ë¦¬"})13    @DisplayName("value ë©ìëë¥¼ í¸ì¶íë©´ ì´ë¦ì ë¦¬í´í©ëë¤.")14    void value(String validName) {15        Name name = new Name(validName);16        then(name.value()).isEqualTo(validName);17    }18    @ParameterizedTest19    @ValueSource(strings = {"ê¹", "ë°íëë³ëêµ¬ë¦íëë³´ë¤ì¬ëì¤ë¬ì°ë¦¬ë", "ì ì´", "ì~", "abc"})20    @DisplayName("ì í¨íì§ ìì ì´ë¦ì ìì¸ë¥¼ ë°ììíµëë¤.")21    void name_throw_exception_with_invalid_format(String invalidName) {22        thenIllegalArgumentException().isThrownBy(() -> new Name(invalidName))23                .withMessage(INVALID_MEMBER_NAME);24    }25    @ParameterizedTest26    @NullSource27    @DisplayName("nullì¼ ê²½ì°, ìì¸ê° ë°ìí©ëë¤")28    void name_throw_exception_with_null(String nullArgument) {29        thenIllegalArgumentException().isThrownBy(() -> new Name(nullArgument))30                .withMessage(INVALID_MEMBER_NAME);31    }32    @Test33    @DisplayName("ëì¼í ì´ë¦ì ê°ì§ ê°ì²´ë¥¼ ë¹êµí  ê²½ì°, trueë¥¼ ë¦¬í´í©ëë¤")34    void equals() {35        Name name = new Name("ì´ë¦");36        then(name).isEqualTo(new Name("ì´ë¦"));37    }38}...

Source:FizzBuzzTest.java

...3import org.junit.jupiter.api.Test;4import java.util.List;5import java.util.function.Consumer;6import java.util.function.Function;7import static org.assertj.core.api.BDDAssertions.thenIllegalArgumentException;8import static org.assertj.core.api.BDDSoftAssertions.thenSoftly;9class FizzBuzzTest {10    private final Function<Input, List<String>> fizzBuzz = new FizzBuzz();11    @Test12    void should_print_first_100_elements() {13        // Given14        final Consumer<String> consumer = System.out::println;15        final var input = Input.of(1, 100);16        // When17        final List<String> actual = fizzBuzz.apply(input);18        actual.forEach(consumer);19        // Then20        thenSoftly(softly -> {21            softly.then(actual).hasSize(100);22            softly.then(actual.get(2)).isEqualTo("Fizz");23            softly.then(actual.get(4)).isEqualTo("Buzz");24            softly.then(actual.get(89)).isEqualTo("FizzBuzz");25        });26    }27    @Test28    void should_throw_exception_when_invalid_input() {29        thenIllegalArgumentException().isThrownBy(() -> Input.of(10, 0));30    }31}...

thenIllegalArgumentException

Using AI Code Generation

1import org.assertj.core.api.BDDAssertions;2import org.junit.Test;3public class AssertJTest {4    public void test() {5        BDDAssertions.thenIllegalArgumentException().isThrownBy(() -> {6            throw new IllegalArgumentException();7        });8    }9}

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