assertthat code throws exception

Sulphix answered on April 28, 2021 Popularity 7/10 Helpfulness 7/10

answer assertthat code throws exception

assertthat code throws exception

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@Test
public void test_exception_approach_1() {
    ...
    assertThatExceptionOfType(IOException.class)
            .isThrownBy(() -> someBadIOOperation())
            .withMessage("boom!"); 
}

@Test
public void test_exception_approach_2() {
    ...
    assertThatThrownBy(() -> someBadIOOperation())
            .isInstanceOf(Exception.class)
            .hasMessageContaining("boom");
}

@Test
public void test_exception_approach_3() {
    ...
    // when
    Throwable thrown = catchThrowable(() -> someBadIOOperation());

    // then
    assertThat(thrown).isInstanceOf(Exception.class)
                      .hasMessageContaining("boom");
}

Popularity 7/10 Helpfulness 7/10 Language java

Source: stackoverflow.com

Tags: assertthat exception java throws

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