| /* |
| * Copyright (c) 1997, 2013, 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. |
| */ |
| package org.openjdk.tests.java.util; |
| |
| import org.testng.annotations.Test; |
| |
| import java.util.Arrays; |
| import java.util.function.Consumer; |
| |
| import static org.testng.Assert.fail; |
| |
| /** |
| * NullArgsTestCase -- Given a Consumer<Object[]>, and an Object[] array of args, call the block with the args, |
| * assert success, and then call the consumer N times, each time setting one of the args to null, and assert that |
| * all these throw NPE. |
| * |
| * Typically this would be combined with a DataProvider that serves up combinations of things to be tested, as in |
| * IteratorsNullTest. |
| */ |
| public abstract class NullArgsTestCase { |
| public final String name; |
| public final Consumer<Object[]> sink; |
| public final Object[] args; |
| |
| protected NullArgsTestCase(String name, Consumer<Object[]> sink, Object[] args) { |
| this.name = name; |
| this.sink = sink; |
| this.args = args; |
| } |
| |
| @Test |
| public void goodNonNull() { |
| sink.accept(args); |
| } |
| |
| @Test |
| public void throwWithNull() { |
| for (int i=0; i<args.length; i++) { |
| Object[] temp = Arrays.copyOf(args, args.length); |
| temp[i] = null; |
| try { |
| sink.accept(temp); |
| fail(String.format("Expected NullPointerException for argument %d of test case %s", i, name)); |
| } |
| catch (NullPointerException e) { |
| // Success |
| } |
| } |
| } |
| } |