| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @run testng DropLookupModeTest |
| * @summary Basic unit tests Lookup::dropLookupMode |
| */ |
| |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodHandles.Lookup; |
| import static java.lang.invoke.MethodHandles.Lookup.*; |
| |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| @Test |
| public class DropLookupModeTest { |
| |
| /** |
| * Basic test of dropLookupMode |
| */ |
| public void testBasic() { |
| final Lookup fullPowerLookup = MethodHandles.lookup(); |
| final Class<?> lc = fullPowerLookup.lookupClass(); |
| assertTrue(fullPowerLookup.lookupModes() == (PUBLIC|MODULE|PACKAGE|PROTECTED|PRIVATE)); |
| |
| Lookup lookup = fullPowerLookup.dropLookupMode(PRIVATE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE|PACKAGE)); |
| |
| lookup = fullPowerLookup.dropLookupMode(PROTECTED); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE|PACKAGE|PRIVATE)); |
| |
| lookup = fullPowerLookup.dropLookupMode(PACKAGE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE)); |
| |
| lookup = fullPowerLookup.dropLookupMode(MODULE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC)); |
| |
| lookup = fullPowerLookup.dropLookupMode(PUBLIC); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == 0); |
| |
| lookup = fullPowerLookup.dropLookupMode(UNCONDITIONAL); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE|PACKAGE|PRIVATE)); |
| } |
| |
| /** |
| * Starting with a full power Lookup, use dropLookupMode to create new Lookups |
| * with reduced access. |
| */ |
| public void testReducingAccess() { |
| Lookup lookup = MethodHandles.lookup(); |
| final Class<?> lc = lookup.lookupClass(); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE|PACKAGE|PROTECTED|PRIVATE)); |
| |
| lookup = lookup.dropLookupMode(PROTECTED); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE|PACKAGE|PRIVATE)); |
| |
| lookup = lookup.dropLookupMode(PRIVATE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE|PACKAGE)); |
| |
| lookup = lookup.dropLookupMode(PACKAGE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == (PUBLIC|MODULE)); |
| |
| lookup = lookup.dropLookupMode(MODULE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == PUBLIC); |
| |
| lookup = lookup.dropLookupMode(PUBLIC); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == 0); |
| |
| // repeat with lookup has no access |
| lookup = lookup.dropLookupMode(PUBLIC); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == 0); |
| } |
| |
| /** |
| * Test dropLookupMode on the public Lookup. |
| */ |
| public void testPublicLookup() { |
| final Lookup publicLookup = MethodHandles.publicLookup(); |
| final Class<?> lc = publicLookup.lookupClass(); |
| assertTrue(publicLookup.lookupModes() == (PUBLIC|UNCONDITIONAL)); |
| |
| Lookup lookup = publicLookup.dropLookupMode(PRIVATE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == PUBLIC); |
| |
| lookup = publicLookup.dropLookupMode(PROTECTED); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == PUBLIC); |
| |
| lookup = publicLookup.dropLookupMode(PACKAGE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == PUBLIC); |
| |
| lookup = publicLookup.dropLookupMode(MODULE); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == PUBLIC); |
| |
| lookup = publicLookup.dropLookupMode(PUBLIC); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == 0); |
| |
| lookup = publicLookup.dropLookupMode(UNCONDITIONAL); |
| assertTrue(lookup.lookupClass() == lc); |
| assertTrue(lookup.lookupModes() == PUBLIC); |
| } |
| |
| @DataProvider(name = "badInput") |
| public Object[][] badInput() { |
| return new Object[][] { |
| { 0, null }, |
| { (PACKAGE|PRIVATE), null }, // two modes |
| { Integer.MAX_VALUE, null }, |
| { Integer.MIN_VALUE, null }, |
| }; |
| } |
| |
| /** |
| * Check that IllegalArgumentException is thrown for bad input |
| */ |
| @Test(dataProvider = "badInput", expectedExceptions = {IllegalArgumentException.class}) |
| public void testBadInput(Integer modeToDrop, Object ignore) { |
| MethodHandles.lookup().dropLookupMode(modeToDrop); |
| } |
| |
| } |