6797535: Add shared two argument static equals method to the platform
Reviewed-by: sherman
diff --git a/test/java/util/Objects/BasicObjectsTest.java b/test/java/util/Objects/BasicObjectsTest.java
new file mode 100644
index 0000000..be45b2c
--- /dev/null
+++ b/test/java/util/Objects/BasicObjectsTest.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6797535
+ * @summary Basic tests for methods in java.util.Objects
+ * @author Joseph D. Darcy
+ */
+
+import java.util.*;
+
+public class BasicObjectsTest {
+ public static void main(String... args) {
+ int errors = 0;
+ errors += testEquals();
+ errors += testHashCode();
+ errors += testToString();
+ errors += testCompare();
+ if (errors > 0 )
+ throw new RuntimeException();
+ }
+
+ private static int testEquals() {
+ int errors = 0;
+ Object[] values = {null, "42", 42};
+ for(int i = 0; i < values.length; i++)
+ for(int j = 0; j < values.length; j++) {
+ boolean expected = (i == j);
+ Object a = values[i];
+ Object b = values[j];
+ boolean result = Objects.equals(a, b);
+ if (result != expected) {
+ errors++;
+ System.err.printf("When equating %s to %s, got %b instead of %b%n.",
+ a, b, result, expected);
+ }
+ }
+ return errors;
+ }
+
+ private static int testHashCode() {
+ int errors = 0;
+ errors += (Objects.hashCode(null) == 0 ) ? 0 : 1;
+ String s = "42";
+ errors += (Objects.hashCode(s) == s.hashCode() ) ? 0 : 1;
+ return errors;
+ }
+
+ private static int testToString() {
+ int errors = 0;
+ errors += ("null".equals(Objects.toString(null)) ) ? 0 : 1;
+ String s = "Some string";
+ errors += (s.equals(Objects.toString(s)) ) ? 0 : 1;
+ return errors;
+ }
+
+ private static int testCompare() {
+ int errors = 0;
+ String[] values = {"e. e. cummings", "zzz"};
+ String[] VALUES = {"E. E. Cummings", "ZZZ"};
+ errors += compareTest(null, null, 0);
+ for(int i = 0; i < values.length; i++) {
+ String a = values[i];
+ errors += compareTest(a, a, 0);
+ for(int j = 0; j < VALUES.length; j++) {
+ int expected = Integer.compare(i, j);
+ String b = VALUES[j];
+ errors += compareTest(a, b, expected);
+ }
+ }
+ return errors;
+ }
+
+ private static int compareTest(String a, String b, int expected) {
+ int errors = 0;
+ int result = Objects.compare(a, b, String.CASE_INSENSITIVE_ORDER);
+ if (Integer.signum(result) != Integer.signum(expected)) {
+ errors++;
+ System.err.printf("When comparing %s to %s, got %d instead of %d%n.",
+ a, b, result, expected);
+ }
+ return errors;
+ }
+}