@Test
public void getAThrowingSupplierUnchecked() {
assertThat(getUnchecked(() -> 42), is(42));
Exception e = new Exception();
try {
getUnchecked(
() -> {
throw e;
});
} catch (RuntimeException ex) {
assertThat(ex.getCause(), sameInstance(e));
return;
}
fail("Should throw exception");
}
@Test
public void applyAThrowingFunctionUnchecked() {
assertThat(applyUnchecked(Math::round, 4.6f), is(5));
assertThat(applyUnchecked(n -> n, null), nullValue());
assertThat(applyUnchecked(n -> n, Optional.empty()), is(Optional.empty()));
Exception e = new Exception();
try {
applyUnchecked(
t -> {
throw e;
},
"anything");
} catch (RuntimeException ex) {
assertThat(ex.getCause(), sameInstance(e));
return;
}
fail("Should throw exception");
}
@Test
public void runAThrowingRunnableUnchecked() {
OneTimeToggle toggled = new OneTimeToggle();
DiggExceptions.runUnchecked(
() ->
toggled.nowOrIfAlreadyThenThrow(() -> new AssertionError("should not be run twice!")));
assertTrue(toggled.yet());
Exception e = new Exception();
try {
runUnchecked(
() -> {
throw e;
});
} catch (RuntimeException ex) {
assertThat(ex.getCause(), sameInstance(e));
return;
}
fail("Should throw exception");
}