Assertthat code throws exception

@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");
}

Source: stackoverflow.com

Similar codes

0 vote139 views2 answers
Unable to find bundled Java version mac m1
Java
30 votes136 views5 answers
Java code to print hello world
Java
0 vote142 views1 answer
Javacal
Java
0 vote135 views1 answer
Convert boolean list to primitive java
Java
-1 vote128 views2 answers
Java casting method
Java
7 votes138 views4 answers
Lombok maven dependency
Java
32 votes129 views10 answers
Translate
Java
0 vote154 views2 answers
Java code to python converter online
Java
0 vote133 views1 answer
How to use auto generated id in java
Java
1 vote131 views2 answers
Java generate random id
Java