author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 45466 | jdk/test/java/lang/String/LiteralReplace.java@faf1c55d2046 |
child 54728 | 6188582d58b5 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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|
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/* @test |
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* @bug 8058779 8054307 |
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* @library /test/lib |
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* @build jdk.test.lib.RandomFactory |
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* @run testng LiteralReplace |
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* @summary Basic tests of String.replace(CharSequence, CharSequence) |
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* @key randomness |
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*/ |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Iterator; |
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import java.util.regex.Matcher; |
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import java.util.regex.Pattern; |
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import java.util.Random; |
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import jdk.test.lib.RandomFactory; |
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import org.testng.annotations.Test; |
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import org.testng.annotations.DataProvider; |
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import static org.testng.Assert.fail; |
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public class LiteralReplace { |
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@Test(dataProvider="sourceTargetReplacementExpected") |
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public void testExpected(String source, String target, |
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String replacement, String expected) |
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{ |
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String canonical = canonicalReplace(source, target, replacement); |
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if (!canonical.equals(expected)) { |
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fail("Canonical: " + canonical + " != " + expected); |
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} |
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test0(source, target, replacement, expected); |
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} |
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@Test(dataProvider="sourceTargetReplacement") |
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public void testCanonical(String source, String target, |
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String replacement) |
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{ |
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String canonical = canonicalReplace(source, target, replacement); |
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test0(source, target, replacement, canonical); |
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} |
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private void test0(String source, String target, String replacement, |
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String expected) |
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{ |
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String result = source.replace(target, replacement); |
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if (!result.equals(expected)) { |
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fail(result + " != " + expected); |
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} |
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} |
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@Test(dataProvider="sourceTargetReplacementWithNull", |
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expectedExceptions = {NullPointerException.class}) |
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public void testNPE(String source, String target, String replacement) { |
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source.replace(target, replacement); |
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} |
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@DataProvider |
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public static Object[][] sourceTargetReplacementExpected() { |
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return new Object[][] { |
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{"aaa", "aa", "b", "ba"}, |
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{"abcdefgh", "def", "DEF", "abcDEFgh"}, |
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{"abcdefgh", "123", "DEF", "abcdefgh"}, |
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{"abcdefgh", "abcdefghi", "DEF", "abcdefgh"}, |
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{"abcdefghabc", "abc", "DEF", "DEFdefghDEF"}, |
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{"abcdefghdef", "def", "", "abcgh"}, |
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{"abcdefgh", "", "_", "_a_b_c_d_e_f_g_h_"}, |
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{"", "", "", ""}, |
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{"", "a", "b", ""}, |
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{"", "", "abc", "abc"}, |
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{"abcdefgh", "abcdefgh", "abcdefgh", "abcdefgh"}, |
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{"abcdefgh", "abcdefgh", "abcdefghi", "abcdefghi"}, |
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{"abcdefgh", "abcdefgh", "", ""}, |
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{"abcdabcd", "abcd", "", ""}, |
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{"aaaaaaaaa", "aa", "_X_", "_X__X__X__X_a"}, |
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{"aaaaaaaaa", "aa", "aaa", "aaaaaaaaaaaaa"}, |
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{"aaaaaaaaa", "aa", "aa", "aaaaaaaaa"}, |
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{"a.c.e.g.", ".", "-", "a-c-e-g-"}, |
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{"abcdefgh", "[a-h]", "X", "abcdefgh"}, |
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{"aa+", "a+", "", "a"}, |
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{"^abc$", "abc", "x", "^x$"}, |
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// more with non-latin1 characters |
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{"\u4e00\u4e00\u4e00", |
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"\u4e00\u4e00", |
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"\u4e01", |
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"\u4e01\u4e00"}, |
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08", |
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"\u4e03\u4e04\u4e05", |
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"\u4e10\u4e11\u4e12", |
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"\u4e00\u4e01\u4e02\u4e10\u4e11\u4e12\u4e06\u4e07\u4e08"}, |
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08", |
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"ABC", |
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"\u4e10\u4e11\u4e12", |
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"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07\u4e08"}, |
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e02\u4e03\u4e07\u4e08", |
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"\u4e02\u4e03", |
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"\u4e12\u4e13", |
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"\u4e00\u4e01\u4e12\u4e13\u4e04\u4e12\u4e13\u4e07\u4e08"}, |
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e02\u4e03\u4e07\u4e08", |
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"\u4e02\u4e03", |
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"ab", |
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"\u4e00\u4e01ab\u4e04ab\u4e07\u4e08"}, |
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05\u4e06\u4e07", |
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"", |
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"_", |
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"_\u4e00_\u4e01_\u4e02_\u4e03_\u4e04_\u4e05_\u4e06_\u4e07_"}, |
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{"^\u4e00\u4e01\u4e02$", |
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"\u4e00\u4e01\u4e02", |
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"\u4e03", |
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"^\u4e03$"}, |
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{"", "\u4e00", "\u4e01", ""}, |
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{"", "", "\u4e00\u4e01\u4e02", "\u4e00\u4e01\u4e02"}, |
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{"^\u4e00\u4e01\u4e02$", |
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"\u4e00\u4e01\u4e02", |
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"X", |
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"^X$"}, |
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{"abcdefgh", |
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"def", |
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"\u4e01", |
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"abc\u4e01gh"}, |
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{"abcdefgh", |
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"def", |
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"\u4e01\u4e02", |
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"abc\u4e01\u4e02gh"}, |
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||
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{"abcdefabcgh", |
|
162 |
"abc", |
|
163 |
"\u4e01\u4e02", |
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164 |
"\u4e01\u4e02def\u4e01\u4e02gh"}, |
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165 |
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{"abcdefabcghabc", |
|
167 |
"abc", |
|
168 |
"\u4e01\u4e02", |
|
169 |
"\u4e01\u4e02def\u4e01\u4e02gh\u4e01\u4e02"}, |
|
170 |
||
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05", |
|
172 |
"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05", |
|
173 |
"abcd", |
|
174 |
"abcd"}, |
|
175 |
||
176 |
{"\u4e00\u4e01", |
|
177 |
"\u4e00\u4e01", |
|
178 |
"abcdefg", |
|
179 |
"abcdefg"}, |
|
180 |
||
181 |
{"\u4e00\u4e01xyz", |
|
182 |
"\u4e00\u4e01", |
|
183 |
"abcdefg", |
|
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"abcdefgxyz"}, |
|
185 |
||
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{"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00", |
|
187 |
"\u4e00\u4e00", |
|
188 |
"\u4e00\u4e00\u4e00", |
|
189 |
"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00"}, |
|
190 |
||
191 |
{"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00", |
|
192 |
"\u4e00\u4e00\u4e00", |
|
193 |
"\u4e00\u4e00", |
|
194 |
"\u4e00\u4e00\u4e00\u4e00"}, |
|
195 |
||
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{"\u4e00.\u4e01.\u4e02.\u4e03.\u4e04.", |
|
197 |
".", |
|
198 |
"-", |
|
199 |
"\u4e00-\u4e01-\u4e02-\u4e03-\u4e04-"}, |
|
200 |
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201 |
{"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00", |
|
202 |
"\u4e00", |
|
203 |
"", |
|
204 |
""}, |
|
205 |
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05", |
|
207 |
"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05", |
|
208 |
"", |
|
209 |
""}, |
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}; |
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} |
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|
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@DataProvider |
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public static Iterator<Object[]> sourceTargetReplacement() { |
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ArrayList<Object[]> list = new ArrayList<>(); |
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for (int maxSrcLen = 1; maxSrcLen <= (1 << 10); maxSrcLen <<= 1) { |
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for (int maxTrgLen = 1; maxTrgLen <= (1 << 10); maxTrgLen <<= 1) { |
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for (int maxPrlLen = 1; maxPrlLen <= (1 << 10); maxPrlLen <<= 1) { |
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list.add(makeArray(makeRandomString(maxSrcLen), |
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makeRandomString(maxTrgLen), |
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makeRandomString(maxPrlLen))); |
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|
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String source = makeRandomString(maxSrcLen); |
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list.add(makeArray(source, |
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mekeRandomSubstring(source, maxTrgLen), |
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makeRandomString(maxPrlLen))); |
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} |
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} |
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} |
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return list.iterator(); |
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} |
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|
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@DataProvider |
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public static Iterator<Object[]> sourceTargetReplacementWithNull() { |
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ArrayList<Object[]> list = new ArrayList<>(); |
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Object[] arr = {null, "", "a", "b", "string", "str", "ababstrstr"}; |
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for (int i = 0; i < arr.length; ++i) { |
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for (int j = 0; j < arr.length; ++j) { |
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for (int k = 0; k < arr.length; ++k) { |
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if (arr[i] != null && (arr[j] == null || arr[k] == null)) { |
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list.add(makeArray(arr[i], arr[j], arr[k])); |
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} |
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} |
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} |
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} |
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return list.iterator(); |
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} |
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|
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// utilities |
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|
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/** |
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* How the String.replace(CharSequence, CharSequence) used to be implemented |
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*/ |
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private static String canonicalReplace(String source, String target, String replacement) { |
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return Pattern.compile(target.toString(), Pattern.LITERAL).matcher( |
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source).replaceAll(Matcher.quoteReplacement(replacement.toString())); |
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} |
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258 |
|
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private static final Random random = RandomFactory.getRandom(); |
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260 |
|
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private static final char[] CHARS = ("qwertyuiop[]12345678" + |
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"90-=\\`asdfghjkl;'zxcvbnm,./~!@#$%^&*()_+|QWERTYUIOP{" + |
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"}ASDFGHJKL:\"ZXCVBNM<>?\n\r\t\u0444\u044B\u0432\u0430").toCharArray(); |
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264 |
|
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private static String makeRandomString(int maxLen) { |
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int len = random.nextInt(maxLen); |
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char[] buf = new char[len]; |
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for (int i = 0; i < len; ++i) { |
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buf[i] = CHARS[random.nextInt(CHARS.length)]; |
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} |
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return new String(buf); |
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} |
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|
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private static String mekeRandomSubstring(String source, int maxLen) { |
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if (source.isEmpty()) { |
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return source; |
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} |
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int pos = random.nextInt(source.length()); |
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int len = Integer.min(source.length() - pos, |
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random.nextInt(maxLen)); |
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return source.substring(pos, pos + len); |
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} |
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|
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private static Object[] makeArray(Object... array) { |
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return array; |
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} |
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} |