336 lines
13 KiB
Java
336 lines
13 KiB
Java
/*
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* Copyright (c) 2015, 2019, 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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/* @test
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* @bug 8058779 8054307 8222955
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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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@Test(expectedExceptions = {OutOfMemoryError.class})
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public void testOOM() {
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"1".repeat(65537).replace("1", "2".repeat(65537));
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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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{"abc", "b", "_", "a_c"},
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{"abc", "bc", "_", "a_"},
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{"abc".repeat(65537) + "end", "b", "_XYZ_", "a_XYZ_c".repeat(65537) + "end"},
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{"abc".repeat(65537) + "end", "a", "_", "_bc".repeat(65537) + "end"},
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{"a".repeat(65537), "a", "", ""},
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{"ab".repeat(65537), "a", "", "b".repeat(65537)},
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{"ab".repeat(65537), "ab", "", ""},
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{"b" + "ab".repeat(65537), "ab", "", "b"},
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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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{"abcdefabcgh",
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"abc",
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"\u4e01\u4e02",
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"\u4e01\u4e02def\u4e01\u4e02gh"},
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{"abcdefabcghabc",
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"abc",
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"\u4e01\u4e02",
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"\u4e01\u4e02def\u4e01\u4e02gh\u4e01\u4e02"},
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
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"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
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"abcd",
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"abcd"},
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{"\u4e00\u4e01",
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"\u4e00\u4e01",
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"abcdefg",
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"abcdefg"},
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{"\u4e00\u4e01xyz",
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"\u4e00\u4e01",
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"abcdefg",
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"abcdefgxyz"},
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{"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00",
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"\u4e00\u4e00",
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"\u4e00\u4e00\u4e00",
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"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00"},
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{"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00",
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"\u4e00\u4e00\u4e00",
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"\u4e00\u4e00",
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"\u4e00\u4e00\u4e00\u4e00"},
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{"\u4e00.\u4e01.\u4e02.\u4e03.\u4e04.",
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".",
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"-",
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"\u4e00-\u4e01-\u4e02-\u4e03-\u4e04-"},
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{"\u4e00\u4e00\u4e00\u4e00\u4e00\u4e00",
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"\u4e00",
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"",
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""},
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{"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
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"\u4e00\u4e01\u4e02\u4e03\u4e04\u4e05",
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"",
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""},
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{"\u4e01\u4e02\u4e03", "\u4e02", "\u4e02", "\u4e01\u4e02\u4e03"},
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{"\u4e01\u4e02\u4e03", "\u4e02", "\u4e04", "\u4e01\u4e04\u4e03"},
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{"\u4e01\u4e02\u4e03", "\u4e02", "_", "\u4e01_\u4e03"},
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{"a\u4e02c", "\u4e02", "_", "a_c"},
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{"\u4e01@\u4e03", "@", "_", "\u4e01_\u4e03"},
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{"\u4e01@\u4e03", "@", "\u4e02", "\u4e01\u4e02\u4e03"},
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{"\u4e01\u4e02\u4e03", "\u4e02\u4e03", "\u4e02\u4e03", "\u4e01\u4e02\u4e03"},
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{"\u4e01\u4e02\u4e03", "\u4e02\u4e03", "\u4e04\u4e05", "\u4e01\u4e04\u4e05"},
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{"\u4e01\u4e02\u4e03", "\u4e02\u4e03", "\u4e06", "\u4e01\u4e06"},
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{"\u4e01\u4e02\u4e03", "\u4e02\u4e03", "<>", "\u4e01<>"},
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{"@\u4e02\u4e03", "\u4e02\u4e03", "<>", "@<>"},
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{"\u4e01@@", "\u4e01@", "", "@"},
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{"\u4e01@@", "\u4e01@", "#", "#@"},
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{"\u4e01@@", "\u4e01@", "\u4e09", "\u4e09@"},
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{"\u4e01@@", "\u4e01@", "#\u4e09", "#\u4e09@"},
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{"\u4e01\u4e02\u4e03".repeat(32771) + "end", "\u4e02", "\u4e02", "\u4e01\u4e02\u4e03".repeat(32771) + "end"},
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{"\u4e01\u4e02\u4e03".repeat(32771) + "end", "\u4e02", "\u4e04", "\u4e01\u4e04\u4e03".repeat(32771) + "end"},
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{"\u4e01\u4e02\u4e03".repeat(32771) + "end", "\u4e02", "\u4e04\u4e05", "\u4e01\u4e04\u4e05\u4e03".repeat(32771) + "end"},
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{"\u4e01\u4e02\u4e03".repeat(32771) + "end", "\u4e02", "_", "\u4e01_\u4e03".repeat(32771) + "end"},
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{"\u4e01_\u4e03".repeat(32771) + "end", "_", "_", "\u4e01_\u4e03".repeat(32771) + "end"},
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{"\u4e01_\u4e03".repeat(32771) + "end", "_", "\u4e06", "\u4e01\u4e06\u4e03".repeat(32771) + "end"},
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{"\u4e01_\u4e03".repeat(32771) + "end", "_", "\u4e06\u4e06", "\u4e01\u4e06\u4e06\u4e03".repeat(32771) + "end"},
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{"X_Y".repeat(32771) + "end", "_", "\u4e07", "X\u4e07Y".repeat(32771) + "end"},
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{"X_Y".repeat(32771) + "end", "_", "\u4e07\u4e08", "X\u4e07\u4e08Y".repeat(32771) + "end"},
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{"X_Y".repeat(32771) + "end", "_", ".\u4e08.", "X.\u4e08.Y".repeat(32771) + "end"},
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{"\u4e0a".repeat(32771), "\u4e0a", "", ""},
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{"\u4e0a\u4e0b".repeat(32771), "\u4e0a", "", "\u4e0b".repeat(32771)},
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{"\u4e0a\u4e0b".repeat(32771), "\u4e0b", "", "\u4e0a".repeat(32771)},
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{"\u4e0a\u4e0b".repeat(32771), "\u4e0a\u4e0b", "", ""},
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{"\u4e0b" + "\u4e0a\u4e0b".repeat(32771), "\u4e0a\u4e0b", "", "\u4e0b"},
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{"\u4e0a\u4e0b".repeat(32771) + "\u4e0a", "\u4e0a\u4e0b", "", "\u4e0a"},
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{"\u4e0b" + "\u4e0a\u4e0b".repeat(32771) + "\u4e0a", "\u4e0a\u4e0b", "", "\u4e0b\u4e0a"},
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{"b" + "\u4e0a\u4e0b".repeat(32771), "\u4e0a\u4e0b", "", "b"},
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{"\u4e0a\u4e0b".repeat(32771) + "a", "\u4e0a\u4e0b", "", "a"},
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{"b" + "\u4e0a\u4e0b".repeat(32771) + "a", "\u4e0a\u4e0b", "", "ba"},
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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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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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@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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// utilities
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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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private static final Random random = RandomFactory.getRandom();
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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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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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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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private static Object[] makeArray(Object... array) {
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return array;
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}
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}
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