--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/math/BigInteger/StringConstructor.java	Mon Jan 26 19:49:26 2009 -0800
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2001-2007 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 4489146 5017980
+ * @summary tests String constructors of BigInteger
+ * @author Joseph D. Darcy
+ */
+import java.math.*;
+
+public class StringConstructor {
+
+
+    public static void main(String [] argv) {
+        // Good strings
+        constructWithoutError("0", 0L);
+        constructWithoutError("000000000000000000", 0L);
+        constructWithoutError("1", 1L);
+        constructWithoutError("-1", -1L);
+        constructWithoutError("+1", +1L);
+        constructWithoutError( "123456789123456789", 123456789123456789L);
+        constructWithoutError("+123456789123456789", 123456789123456789L);
+        constructWithoutError("-123456789123456789", -123456789123456789L);
+        constructWithoutError(Integer.toString(Integer.MIN_VALUE),
+                              (long)Integer.MIN_VALUE);
+        constructWithoutError(Integer.toString(Integer.MAX_VALUE),
+                              (long)Integer.MAX_VALUE);
+        constructWithoutError(Long.toString(Long.MIN_VALUE),
+                              Long.MIN_VALUE);
+        constructWithoutError(Long.toString(Long.MAX_VALUE),
+                              Long.MAX_VALUE);
+
+        // Bad strings
+        constructWithError("");
+        constructWithError("-");
+        constructWithError("+");
+        constructWithError("--");
+        constructWithError("++");
+        constructWithError("-000-0");
+        constructWithError("+000+0");
+        constructWithError("+000-0");
+        constructWithError("--1234567890");
+        constructWithError("++1234567890");
+        constructWithError("-0-12345678");
+        constructWithError("+0+12345678");
+        constructWithError("--12345678-12345678-12345678");
+        constructWithError("++12345678+12345678+12345678");
+        constructWithError("12345-");
+        constructWithError("12345+");
+    }
+
+    // this method adapted from ../BigDecimal/StringConstructor.java
+    private static void constructWithError(String badString) {
+        try {
+            BigInteger bi = new BigInteger(badString);
+            throw new RuntimeException(badString + " accepted");
+        } catch(NumberFormatException e) {
+        }
+    }
+
+    private static void constructWithoutError(String goodString, long value) {
+            BigInteger bi = new BigInteger(goodString);
+            if(bi.longValue() != value) {
+                System.err.printf("From ``%s'' expected %d, got %s.\n", goodString, value, bi);
+                throw new RuntimeException();
+            }
+    }
+
+}