--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/math/BigDecimal/StringConstructor.java Mon Jan 26 19:49:26 2009 -0800
@@ -0,0 +1,163 @@
+/*
+ * Copyright 1999-2005 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 4103117 4331084 4488017 4490929 6255285 6268365
+ * @summary Tests the BigDecimal string constructor.
+ */
+
+import java.math.*;
+import java.util.Random;
+
+public class StringConstructor {
+
+ private static int seed = new Random().nextInt();
+ private static Random rnd = new Random(seed);
+
+ public static void main(String[] args) throws Exception {
+ constructWithError("");
+ constructWithError("+");
+ constructWithError("-");
+ constructWithError("+e");
+ constructWithError("-e");
+ constructWithError("e+");
+ constructWithError("1.-0");
+ constructWithError(".-123");
+ constructWithError("-");
+ constructWithError("--1.1");
+ constructWithError("-+1.1");
+ constructWithError("+-1.1");
+ constructWithError("1-.1");
+ constructWithError("1+.1");
+ constructWithError("1.111+1");
+ constructWithError("1.111-1");
+ constructWithError("11.e+");
+ constructWithError("11.e-");
+ constructWithError("11.e+-");
+ constructWithError("11.e-+");
+ constructWithError("11.e-+1");
+ constructWithError("11.e+-1");
+
+ // Range checks
+ constructWithError("1e"+Integer.MIN_VALUE);
+ constructWithError("10e"+Integer.MIN_VALUE);
+ constructWithError("0.01e"+Integer.MIN_VALUE);
+ constructWithError("1e"+((long)Integer.MIN_VALUE-1));
+ constructWithError("1e"+((long)Integer.MAX_VALUE + 1));
+
+ leadingExponentZeroTest();
+ nonAsciiZeroTest();
+
+ // Roundtrip tests
+ for (int i=0; i<100; i++) {
+ int size = rnd.nextInt(100) + 1;
+ BigInteger bi = new BigInteger(size, rnd);
+ if (rnd.nextBoolean())
+ bi = bi.negate();
+ int decimalLength = bi.toString().length();
+ int scale = rnd.nextInt(decimalLength);
+ BigDecimal bd = new BigDecimal(bi, scale);
+ String bdString = bd.toString();
+ // System.err.println("bi" + bi.toString() + "\tscale " + scale);
+ // System.err.println("bd string: " + bdString);
+ BigDecimal bdDoppel = new BigDecimal(bdString);
+ if (!bd.equals(bdDoppel)) {
+ System.err.println("Random number seed = " + seed);
+ System.err.println("bd string: scale: " + bd.scale() +
+ "\t" + bdString);
+ System.err.println("bd doppel: scale: " + bdDoppel.scale() +
+ "\t" + bdDoppel.toString());
+ throw new RuntimeException("String constructor failure.");
+ }
+ }
+ }
+
+
+ /*
+ * Verify precision is set properly if the significand has
+ * non-ASCII leading zeros.
+ */
+ private static void nonAsciiZeroTest() {
+ String values[] = {
+ "00004e5",
+ "\u0660\u0660\u0660\u06604e5",
+ };
+
+ BigDecimal expected = new BigDecimal("4e5");
+
+ for(String s : values) {
+ BigDecimal tmp = new BigDecimal(s);
+ // System.err.println("Testing " + s);
+ if (! expected.equals(tmp) || tmp.precision() != 1) {
+ System.err.println("Bad conversion of " + s + "got " +
+ tmp + "precision = " + tmp.precision());
+ throw new RuntimeException("String constructor failure.");
+ }
+ }
+
+ }
+
+ private static void leadingExponentZeroTest() {
+ BigDecimal twelve = new BigDecimal("12");
+ BigDecimal onePointTwo = new BigDecimal("1.2");
+
+ String start = "1.2e0";
+ String end = "1";
+ String middle = "";
+
+ // Test with more excess zeros than the largest number of
+ // decimal digits needed to represent a long
+ int limit = ((int)Math.log10(Long.MAX_VALUE)) + 6;
+ for(int i = 0; i < limit; i++, middle += "0") {
+ String t1 = start + middle;
+ String t2 = t1 + end;
+
+ // System.out.println(i + "\t" + t1 + "\t" + t2);
+ testString(t1, onePointTwo);
+ testString(t2, twelve);
+ }
+ }
+
+ private static void testString(String s, BigDecimal expected) {
+ testString0(s, expected);
+ testString0(switchZero(s), expected);
+ }
+
+ private static void testString0(String s, BigDecimal expected) {
+ if (!expected.equals(new BigDecimal(s)))
+ throw new RuntimeException(s + " is not equal to " + expected);
+ }
+
+ private static String switchZero(String s) {
+ return s.replace('0', '\u0660'); // Arabic-Indic zero
+ }
+
+ private static void constructWithError(String badString) {
+ try {
+ BigDecimal d = new BigDecimal(badString);
+ throw new RuntimeException(badString + " accepted");
+ } catch(NumberFormatException e) {
+ }
+ }
+}