/* * Copyright (c) 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. */ import static com.oracle.java.testlibrary.Asserts.*; /* @test * @summary Tests the different assertions in the Assert class * @library /testlibrary */ public class AssertsTest { private static class Foo implements Comparable { final int id; public Foo(int id) { this.id = id; } public int compareTo(Foo f) { return new Integer(id).compareTo(new Integer(f.id)); } } public static void main(String[] args) throws Exception { testLessThan(); testLessThanOrEqual(); testEquals(); testGreaterThanOrEqual(); testGreaterThan(); testNotEquals(); testNull(); testNotNull(); testTrue(); testFalse(); } private static void testLessThan() throws Exception { expectPass(Assertion.LT, 1, 2); expectFail(Assertion.LT, 2, 2); expectFail(Assertion.LT, 2, 1); expectFail(Assertion.LT, null, 2); expectFail(Assertion.LT, 2, null); } private static void testLessThanOrEqual() throws Exception { expectPass(Assertion.LTE, 1, 2); expectPass(Assertion.LTE, 2, 2); expectFail(Assertion.LTE, 3, 2); expectFail(Assertion.LTE, null, 2); expectFail(Assertion.LTE, 2, null); } private static void testEquals() throws Exception { expectPass(Assertion.EQ, 1, 1); expectPass(Assertion.EQ, null, null); Foo f1 = new Foo(1); expectPass(Assertion.EQ, f1, f1); Foo f2 = new Foo(1); expectFail(Assertion.EQ, f1, f2); expectFail(Assertion.LTE, null, 2); expectFail(Assertion.LTE, 2, null); } private static void testGreaterThanOrEqual() throws Exception { expectPass(Assertion.GTE, 1, 1); expectPass(Assertion.GTE, 2, 1); expectFail(Assertion.GTE, 1, 2); expectFail(Assertion.GTE, null, 2); expectFail(Assertion.GTE, 2, null); } private static void testGreaterThan() throws Exception { expectPass(Assertion.GT, 2, 1); expectFail(Assertion.GT, 1, 1); expectFail(Assertion.GT, 1, 2); expectFail(Assertion.GT, null, 2); expectFail(Assertion.GT, 2, null); } private static void testNotEquals() throws Exception { expectPass(Assertion.NE, null, 1); expectPass(Assertion.NE, 1, null); Foo f1 = new Foo(1); Foo f2 = new Foo(1); expectPass(Assertion.NE, f1, f2); expectFail(Assertion.NE, null, null); expectFail(Assertion.NE, f1, f1); expectFail(Assertion.NE, 1, 1); } private static void testNull() throws Exception { expectPass(Assertion.NULL, null); expectFail(Assertion.NULL, 1); } private static void testNotNull() throws Exception { expectPass(Assertion.NOTNULL, 1); expectFail(Assertion.NOTNULL, null); } private static void testTrue() throws Exception { expectPass(Assertion.TRUE, true); expectFail(Assertion.TRUE, false); } private static void testFalse() throws Exception { expectPass(Assertion.FALSE, false); expectFail(Assertion.FALSE, true); } private static > void expectPass(Assertion assertion, T ... args) throws Exception { Assertion.run(assertion, args); } private static > void expectFail(Assertion assertion, T ... args) throws Exception { try { Assertion.run(assertion, args); } catch (RuntimeException e) { return; } throw new Exception("Expected " + Assertion.format(assertion, (Object[]) args) + " to throw a RuntimeException"); } } enum Assertion { LT, LTE, EQ, GTE, GT, NE, NULL, NOTNULL, FALSE, TRUE; public static > void run(Assertion assertion, T ... args) { String msg = "Expected " + format(assertion, args) + " to pass"; switch (assertion) { case LT: assertLessThan(args[0], args[1], msg); break; case LTE: assertLessThanOrEqual(args[0], args[1], msg); break; case EQ: assertEquals(args[0], args[1], msg); break; case GTE: assertGreaterThanOrEqual(args[0], args[1], msg); break; case GT: assertGreaterThan(args[0], args[1], msg); break; case NE: assertNotEquals(args[0], args[1], msg); break; case NULL: assertNull(args == null ? args : args[0], msg); break; case NOTNULL: assertNotNull(args == null ? args : args[0], msg); break; case FALSE: assertFalse((Boolean) args[0], msg); break; case TRUE: assertTrue((Boolean) args[0], msg); break; default: // do nothing } } public static String format(Assertion assertion, Object ... args) { switch (assertion) { case LT: return asString("assertLessThan", args); case LTE: return asString("assertLessThanOrEqual", args); case EQ: return asString("assertEquals", args); case GTE: return asString("assertGreaterThanOrEquals", args); case GT: return asString("assertGreaterThan", args); case NE: return asString("assertNotEquals", args); case NULL: return asString("assertNull", args); case NOTNULL: return asString("assertNotNull", args); case FALSE: return asString("assertFalse", args); case TRUE: return asString("assertTrue", args); default: return ""; } } private static String asString(String assertion, Object ... args) { if (args == null) { return String.format("%s(null)", assertion); } if (args.length == 1) { return String.format("%s(%s)", assertion, args[0]); } else { return String.format("%s(%s, %s)", assertion, args[0], args[1]); } } }