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Handling Exceptions

Throwing Checked Exceptions

Cuppa makes it easy to test code that may throw checked exceptions (i.e. exceptions that are not subtypes of RuntimeException). Tests may throw checked exceptions without needing to declare anything - it just works.

it("throws a checked exception", () -> {
    throw new Exception();
});

Expected Exceptions

Cuppa doesn't include built-in support for expected exceptions (like JUnit's @Test(expected=Exception.class)). You should use the features of your chosen assertion library instead. For example, AssertJ provides the assertThatThrownBy method:

it("throws an exception", () - {
    assertThatThrownBy(() -> {
        throw new Exception("boom!");
    }).isInstanceOf(Exception.class).hasMessageContaining("boom");
});