/* * Copyright (c) 1998, 2016, 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 4062985 4108758 4108762 4157299 * @library /java/text/testlib * @summary Test CollationElementIterator, particularly the new methods in 1.2
*/ /* * (C) Copyright IBM Corp. 1998 - All Rights Reserved * * The original version of this source code and documentation is copyrighted * and owned by IBM, Inc. These materials are provided under terms of a * License Agreement between IBM and Sun. This technology is protected by * multiple US and International patents. This notice and attribution to IBM * may not be removed.
*/
import java.util.Locale; import java.text.*;
publicclass IteratorTest extends CollatorTest { // TODO: // - Test previous() with contracting character sequences, which don't work // at the moment. // - Test edge cases on setOffset(), e.g. offset > length, etc. // publicstaticvoid main(String[] args) throws Exception { new IteratorTest().run(args);
}
/** * Test for CollationElementIterator.previous() * * @bug 4108758 - Make sure it works with contracting characters *
*/ publicvoid TestPrevious() throws ParseException { // A basic test to see if it's working at all
backAndForth(en_us.getCollationElementIterator(test1));
// Test with a contracting character sequence
RuleBasedCollator c1 = new RuleBasedCollator( "< a,A < b,B < c,C, d,D < z,Z < ch,cH,Ch,CH" );
/** * Test for getOffset() and setOffset()
*/ publicvoid TestOffset() {
CollationElementIterator iter = en_us.getCollationElementIterator(test1);
// Run all the way through the iterator, then get the offset int orders[] = getOrders(iter);
int offset = iter.getOffset(); if (offset != test1.length()) {
System.out.println("offset at end != length: "
+ offset + " vs " + test1.length());
}
// Now set the offset back to the beginning and see if it works
iter.setOffset(0);
assertEqual(iter, en_us.getCollationElementIterator(test1));
// TODO: try iterating halfway through a messy string.
}
/** * Test for setText()
*/ publicvoid TestSetText() {
CollationElementIterator iter1 = en_us.getCollationElementIterator(test1);
CollationElementIterator iter2 = en_us.getCollationElementIterator(test2);
// Run through the second iterator just to exercise it int c = iter2.next(); int i = 0; while ( ++i < 10 && c != CollationElementIterator.NULLORDER) {
c = iter2.next();
}
// Now set it to point to the same string as the first iterator
iter2.setText(test1);
assertEqual(iter1, iter2);
}
/** @bug 4108762 * Test for getMaxExpansion()
*/ publicvoid TestMaxExpansion() throws ParseException { // Try a simple one first: // The only expansion ends with 'e' and has length 2
String[][] test1 = {
{ "< a & ae = \u00e4 < b < e", "" },
{ "a", "1" },
{ "b", "1" },
{ "e", "2" },
};
verifyExpansion(test1);
// Now a more complicated one: // "a1" --> "ae" // "z" --> "aeef" //
String[][] test2 = {
{ "< a & ae = a1 & aeef = z < b < e < f", "" },
{ "a", "1" },
{ "b", "1" },
{ "e", "2" },
{ "f", "4" },
};
verifyExpansion(test2);
}
/* * @bug 4157299
*/ publicvoid TestClearBuffers() throws ParseException {
RuleBasedCollator c = new RuleBasedCollator("< a < b < c & ab = d");
CollationElementIterator i = c.getCollationElementIterator("abcd"); int e0 = i.next(); // save the first collation element
i.setOffset(3); // go to the expanding character
i.next(); // but only use up half of it
i.setOffset(0); // go back to the beginning int e = i.next(); // and get this one again if (e != e0) {
errln("got " + Integer.toString(e, 16) + ", expected " +
Integer.toString(e0, 16));
}
}
privatevoid backAndForth(CollationElementIterator iter) { // Run through the iterator forwards and stick it into an array int [] orders = getOrders(iter);
// Now go through it backwards and make sure we get the same values int index = orders.length; int o;
while ((o = iter.previous()) != CollationElementIterator.NULLORDER) { if (o != orders[--index]) {
errln("Mismatch at index " + index + ": "
+ orders[index] + " vs " + o); break;
}
} if (index != 0) {
errln("Didn't get back to beginning - index is " + index);
/** * Verify that getMaxExpansion works on a given set of collation rules * * The first row of the "tests" array contains the collation rules * at index 0, and the string at index 1 is ignored. * * Subsequent rows of the array contain a character and a number, both * represented as strings. The character's collation order is determined, * and getMaxExpansion is called for that character. If its value is * not equal to the specified number, an error results.
*/ privatevoid verifyExpansion(String[][] tests) throws ParseException
{
RuleBasedCollator coll = new RuleBasedCollator(tests[0][0]);
CollationElementIterator iter = coll.getCollationElementIterator("");
for (int i = 1; i < tests.length; i++) { // First get the collation key that the test string expands to
iter.setText(tests[i][0]);
int expansion = iter.getMaxExpansion(order); int expect = new Integer(tests[i][1]).intValue();
if (expansion != expect) {
errln("expansion for '" + tests[i][0] + "' is wrong: " + "expected " + expect + ", got " + expansion);
}
}
}
/** * Return an integer array containing all of the collation orders * returned by calls to next on the specified iterator
*/ privateint[] getOrders(CollationElementIterator iter)
{ int maxSize = 100; int size = 0; int[] orders = newint[maxSize];
/** * Return a string containing all of the collation orders * returned by calls to next on the specified iterator
*/ private String orderString(CollationElementIterator iter) {
StringBuffer buf = new StringBuffer();
int order; while ((order = iter.next()) != NULLORDER) {
buf.append( Integer.toHexString(order) + " ");
} return buf.toString();
}
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