how to assert that an exception is thrown java

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Luciana
04 May 2019
1@Test
2public void whenExceptionThrown_thenAssertionSucceeds() {
3    Exception exception = assertThrows(NumberFormatException.class, () -> {
4        Integer.parseInt("1a");
5    });
6
7    String expectedMessage = "For input string";
8    String actualMessage = exception.getMessage();
9
10    assertTrue(actualMessage.contains(expectedMessage));
11}
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