how to assert that an exception is thrown java
@Test
public void whenExceptionThrown_thenAssertionSucceeds() {
Exception exception = assertThrows(NumberFormatException.class, () -> {
Integer.parseInt("1a");
});
String expectedMessage = "For input string";
String actualMessage = exception.getMessage();
assertTrue(actualMessage.contains(expectedMessage));
}java assert
public static void main(String[] args) {
int a = 6;
assert a != 6 : "a != 6";
}
//Exception in thread "main" java.lang.AssertionError: a != 6
Foo result = null;
assert result != null;
final int result = a + b;
assert (result - a == b) : "Sum of " + a + " + " + b + " returned wrong sum " + result;Copyright © 2021 Codeinu
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