--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/lang/StringBuffer/Supplementary.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,417 @@
+/*
+ * Copyright (c) 2003, 2010, 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.
+ */
+
+/*
+ *
+ * @test
+ * @bug 4533872 4915683 4985217 5017280 6937112
+ * @summary Unit tests for supplementary character support (JSR-204)
+ */
+
+public class Supplementary {
+
+ public static void main(String[] args) {
+ test1(); // Test for codePointAt(int index)
+ test2(); // Test for codePointBefore(int index)
+ test3(); // Test for reverse()
+ test4(); // Test for appendCodePoint(int codePoint)
+ test5(); // Test for codePointCount(int beginIndex, int endIndex)
+ test6(); // Test for offsetByCodePoints(int index, int offset)
+ }
+
+ /* Text strings which are used as input data.
+ * The comment above each text string means the index of each 16-bit char
+ * for convenience.
+ */
+ static final String[] input = {
+ /* 111 1 111111 22222
+ 0123 4 5678 9 012 3 456789 01234 */
+ "abc\uD800\uDC00def\uD800\uD800ab\uD800\uDC00cdefa\uDC00bcdef",
+ /* 1 1111 1111 1 222
+ 0 12345 6789 0 1234 5678 9 012 */
+ "\uD800defg\uD800hij\uD800\uDC00klm\uDC00nop\uDC00\uD800rt\uDC00",
+ /* 11 1 1111 1 112 222
+ 0 12345 6 78901 2 3456 7 890 123 */
+ "\uDC00abcd\uDBFF\uDFFFefgh\uD800\uDC009ik\uDC00\uDC00lm\uDC00no\uD800",
+ /* 111 111111 1 22 2
+ 0 1 2345 678 9 012 345678 9 01 2 */
+ "\uD800\uDC00!#$\uD800%&\uD800\uDC00;+\uDC00<>;=^\uDC00\\@\uD800\uDC00",
+
+ // includes an undefined supplementary character in Unicode 4.0.0
+ /* 1 11 1 1111 1
+ 0 1 2345 6 789 0 12 3 4567 8 */
+ "\uDB40\uDE00abc\uDE01\uDB40de\uDB40\uDE02f\uDB40\uDE03ghi\uDB40\uDE02",
+ };
+
+
+ /* Expected results for:
+ * test1(): for codePointAt()
+ *
+ * Each character in each array is the golden data for each text string
+ * in the above input data. For example, the first data in each array is
+ * for the first input string.
+ */
+ static final int[][] golden1 = {
+ {'a', 0xD800, 0xDC00, 0x10000, 0xE0200}, // codePointAt(0)
+ {0xD800, 0x10000, 'g', 0xDC00, 0xE0202}, // codePointAt(9)
+ {'f', 0xDC00, 0xD800, 0xDC00, 0xDE02}, // codePointAt(length-1)
+ };
+
+ /*
+ * Test for codePointAt(int index) method
+ */
+ static void test1() {
+
+ for (int i = 0; i < input.length; i++) {
+ StringBuffer sb = new StringBuffer(input[i]);
+
+ /*
+ * Normal case
+ */
+ testCodePoint(At, sb, 0, golden1[0][i]);
+ testCodePoint(At, sb, 9, golden1[1][i]);
+ testCodePoint(At, sb, sb.length()-1, golden1[2][i]);
+
+ /*
+ * Abnormal case - verify that an exception is thrown.
+ */
+ testCodePoint(At, sb, -1);
+ testCodePoint(At, sb, sb.length());
+ }
+ }
+
+
+ /* Expected results for:
+ * test2(): for codePointBefore()
+ *
+ * Each character in each array is the golden data for each text string
+ * in the above input data. For example, the first data in each array is
+ * for the first input string.
+ */
+ static final int[][] golden2 = {
+ {'a', 0xD800, 0xDC00, 0xD800, 0xDB40}, // codePointBefore(1)
+ {0xD800, 'l', 0x10000, 0xDC00, 0xDB40}, // codePointBefore(13)
+ {'f', 0xDC00, 0xD800, 0x10000, 0xE0202}, // codePointBefore(length)
+ };
+
+ /*
+ * Test for codePointBefore(int index) method
+ */
+ static void test2() {
+
+ for (int i = 0; i < input.length; i++) {
+ StringBuffer sb = new StringBuffer(input[i]);
+
+ /*
+ * Normal case
+ */
+ testCodePoint(Before, sb, 1, golden2[0][i]);
+ testCodePoint(Before, sb, 13, golden2[1][i]);
+ testCodePoint(Before, sb, sb.length(), golden2[2][i]);
+
+ /*
+ * Abnormal case - verify that an exception is thrown.
+ */
+ testCodePoint(Before, sb, 0);
+ testCodePoint(Before, sb, sb.length()+1);
+ }
+ }
+
+
+ /* Expected results for:
+ * test3(): for reverse()
+ *
+ * Unlike golden1 and golden2, each array is the golden data for each text
+ * string in the above input data. For example, the first array is for
+ * the first input string.
+ */
+ static final String[] golden3 = {
+ "fedcb\uDC00afedc\uD800\uDC00ba\uD800\uD800fed\uD800\uDC00cba",
+ "\uDC00tr\uD800\uDC00pon\uDC00mlk\uD800\uDC00jih\uD800gfed\uD800",
+ "\uD800on\uDC00ml\uDC00\uDC00ki9\uD800\uDC00hgfe\uDBFF\uDFFFdcba\uDC00",
+ "\uD800\uDC00@\\\uDC00^=;><\uDC00+;\uD800\uDC00&%\uD800$#!\uD800\uDC00",
+
+ // includes an undefined supplementary character in Unicode 4.0.0
+ "\uDB40\uDE02ihg\uDB40\uDE03f\uDB40\uDE02ed\uDB40\uDE01cba\uDB40\uDE00",
+ };
+
+ // Additional input data & expected result for test3()
+ static final String[][] testdata1 = {
+ {"a\uD800\uDC00", "\uD800\uDC00a"},
+ {"a\uDC00\uD800", "\uD800\uDC00a"},
+ {"\uD800\uDC00a", "a\uD800\uDC00"},
+ {"\uDC00\uD800a", "a\uD800\uDC00"},
+ {"\uDC00\uD800\uD801", "\uD801\uD800\uDC00"},
+ {"\uDC00\uD800\uDC01", "\uD800\uDC01\uDC00"},
+ {"\uD801\uD800\uDC00", "\uD800\uDC00\uD801"},
+ {"\uD800\uDC01\uDC00", "\uDC00\uD800\uDC01"},
+ {"\uD800\uDC00\uDC01\uD801", "\uD801\uDC01\uD800\uDC00"},
+ };
+
+ /*
+ * Test for reverse() method
+ */
+ static void test3() {
+ for (int i = 0; i < input.length; i++) {
+ StringBuffer sb = new StringBuffer(input[i]).reverse();
+
+ check(!golden3[i].equals(new String(sb)),
+ "reverse() for <" + toHexString(input[i]) + ">",
+ sb, golden3[i]);
+ }
+
+ for (int i = 0; i < testdata1.length; i++) {
+ StringBuffer sb = new StringBuffer(testdata1[i][0]).reverse();
+
+ check(!testdata1[i][1].equals(new String(sb)),
+ "reverse() for <" + toHexString(testdata1[i][0]) + ">",
+ sb, testdata1[i][1]);
+ }
+ }
+
+ /**
+ * Test for appendCodePoint() method
+ */
+ static void test4() {
+ for (int i = 0; i < input.length; i++) {
+ String s = input[i];
+ StringBuffer sb = new StringBuffer();
+ int c;
+ for (int j = 0; j < s.length(); j += Character.charCount(c)) {
+ c = s.codePointAt(j);
+ StringBuffer rsb = sb.appendCodePoint(c);
+ check(sb != rsb, "appendCodePoint returned a wrong object");
+ int sbc = sb.codePointAt(j);
+ check(sbc != c, "appendCodePoint(j) != c", sbc, c);
+ }
+ check(!s.equals(sb.toString()),
+ "appendCodePoint() produced a wrong result with input["+i+"]");
+ }
+
+ // test exception
+ testAppendCodePoint(-1, IllegalArgumentException.class);
+ testAppendCodePoint(Character.MAX_CODE_POINT+1, IllegalArgumentException.class);
+ }
+
+ /**
+ * Test codePointCount(int, int)
+ *
+ * This test case assumes that
+ * Character.codePointCount(CharSequence, int, int) works
+ * correctly.
+ */
+ static void test5() {
+ for (int i = 0; i < input.length; i++) {
+ String s = input[i];
+ StringBuffer sb = new StringBuffer(s);
+ int length = sb.length();
+ for (int j = 0; j <= length; j++) {
+ int result = sb.codePointCount(j, length);
+ int expected = Character.codePointCount(sb, j, length);
+ check(result != expected, "codePointCount(input["+i+"], "+j+", "+length+")",
+ result, expected);
+ }
+ for (int j = length; j >= 0; j--) {
+ int result = sb.codePointCount(0, j);
+ int expected = Character.codePointCount(sb, 0, j);
+ check(result != expected, "codePointCount(input["+i+"], 0, "+j+")",
+ result, expected);
+ }
+
+ // test exceptions
+ testCodePointCount(null, 0, 0, NullPointerException.class);
+ testCodePointCount(sb, -1, length, IndexOutOfBoundsException.class);
+ testCodePointCount(sb, 0, length+1, IndexOutOfBoundsException.class);
+ testCodePointCount(sb, length, length-1, IndexOutOfBoundsException.class);
+ }
+ }
+
+ /**
+ * Test offsetByCodePoints(int, int)
+ *
+ * This test case assumes that
+ * Character.codePointCount(CharSequence, int, int) works
+ * correctly.
+ */
+ static void test6() {
+ for (int i = 0; i < input.length; i++) {
+ String s = input[i];
+ StringBuffer sb = new StringBuffer(s);
+ int length = s.length();
+ for (int j = 0; j <= length; j++) {
+ int nCodePoints = Character.codePointCount(sb, j, length);
+ int result = sb.offsetByCodePoints(j, nCodePoints);
+ check(result != length,
+ "offsetByCodePoints(input["+i+"], "+j+", "+nCodePoints+")",
+ result, length);
+ result = sb.offsetByCodePoints(length, -nCodePoints);
+ int expected = j;
+ if (j > 0 && j < length) {
+ int cp = sb.codePointBefore(j+1);
+ if (Character.isSupplementaryCodePoint(cp)) {
+ expected--;
+ }
+ }
+ check(result != expected,
+ "offsetByCodePoints(input["+i+"], "+j+", "+(-nCodePoints)+")",
+ result, expected);
+ }
+ for (int j = length; j >= 0; j--) {
+ int nCodePoints = Character.codePointCount(sb, 0, j);
+ int result = sb.offsetByCodePoints(0, nCodePoints);
+ int expected = j;
+ if (j > 0 && j < length) {
+ int cp = sb.codePointAt(j-1);
+ if (Character.isSupplementaryCodePoint(cp)) {
+ expected++;
+ }
+ }
+ check(result != expected,
+ "offsetByCodePoints(input["+i+"], 0, "+nCodePoints+")",
+ result, expected);
+ result = sb.offsetByCodePoints(j, -nCodePoints);
+ check(result != 0,
+ "offsetBycodePoints(input["+i+"], "+j+", "+(-nCodePoints)+")",
+ result, 0);
+ }
+
+ // test exceptions
+ testOffsetByCodePoints(null, 0, 0, NullPointerException.class);
+ testOffsetByCodePoints(sb, -1, length, IndexOutOfBoundsException.class);
+ testOffsetByCodePoints(sb, 0, length+1, IndexOutOfBoundsException.class);
+ testOffsetByCodePoints(sb, 1, -2, IndexOutOfBoundsException.class);
+ testOffsetByCodePoints(sb, length, length-1, IndexOutOfBoundsException.class);
+ testOffsetByCodePoints(sb, length, -(length+1), IndexOutOfBoundsException.class);
+ }
+ }
+
+
+ static final boolean At = true, Before = false;
+
+ static void testCodePoint(boolean isAt, StringBuffer sb, int index, int expected) {
+ int c = isAt ? sb.codePointAt(index) : sb.codePointBefore(index);
+
+ check(c != expected,
+ "codePoint" + (isAt ? "At" : "Before") + "(" + index + ") for <"
+ + sb + ">", c, expected);
+ }
+
+ static void testCodePoint(boolean isAt, StringBuffer sb, int index) {
+ boolean exceptionOccurred = false;
+
+ try {
+ int c = isAt ? sb.codePointAt(index) : sb.codePointBefore(index);
+ }
+ catch (StringIndexOutOfBoundsException e) {
+ exceptionOccurred = true;
+ }
+ check(!exceptionOccurred,
+ "codePoint" + (isAt ? "At" : "Before") + "(" + index + ") for <"
+ + sb + "> should throw StringIndexOutOfBoundsPointerException.");
+ }
+
+ static void testAppendCodePoint(int codePoint, Class expectedException) {
+ try {
+ new StringBuffer().appendCodePoint(codePoint);
+ } catch (Exception e) {
+ if (expectedException.isInstance(e)) {
+ return;
+ }
+ throw new RuntimeException("Error: Unexpected exception", e);
+ }
+ check(true, "appendCodePoint(" + toHexString(codePoint) + ") didn't throw "
+ + expectedException.getName());
+ }
+
+ static void testCodePointCount(StringBuffer sb, int beginIndex, int endIndex,
+ Class expectedException) {
+ try {
+ int n = sb.codePointCount(beginIndex, endIndex);
+ } catch (Exception e) {
+ if (expectedException.isInstance(e)) {
+ return;
+ }
+ throw new RuntimeException("Error: Unexpected exception", e);
+ }
+ check(true, "codePointCount() didn't throw " + expectedException.getName());
+ }
+
+ static void testOffsetByCodePoints(StringBuffer sb, int index, int offset,
+ Class expectedException) {
+ try {
+ int n = sb.offsetByCodePoints(index, offset);
+ } catch (Exception e) {
+ if (expectedException.isInstance(e)) {
+ return;
+ }
+ throw new RuntimeException("Error: Unexpected exception", e);
+ }
+ check(true, "offsetByCodePoints() didn't throw " + expectedException.getName());
+ }
+
+ static void check(boolean err, String msg) {
+ if (err) {
+ throw new RuntimeException("Error: " + msg);
+ }
+ }
+
+ static void check(boolean err, String s, int got, int expected) {
+ if (err) {
+ throw new RuntimeException("Error: " + s
+ + " returned an unexpected value. got "
+ + toHexString(got)
+ + ", expected "
+ + toHexString(expected));
+ }
+ }
+
+ static void check(boolean err, String s, StringBuffer got, String expected) {
+ if (err) {
+ throw new RuntimeException("Error: " + s
+ + " returned an unexpected value. got <"
+ + toHexString(new String(got))
+ + ">, expected <"
+ + toHexString(expected)
+ + ">");
+ }
+ }
+
+ private static String toHexString(int c) {
+ return "0x" + Integer.toHexString(c);
+ }
+
+ private static String toHexString(String s) {
+ StringBuffer sb = new StringBuffer();
+ for (int i = 0; i < s.length(); i++) {
+ char c = s.charAt(i);
+
+ sb.append(" 0x");
+ if (c < 0x10) sb.append('0');
+ if (c < 0x100) sb.append('0');
+ if (c < 0x1000) sb.append('0');
+ sb.append(Integer.toHexString(c));
+ }
+ sb.append(' ');
+ return sb.toString();
+ }
+}