127 lines
4.1 KiB
Java
127 lines
4.1 KiB
Java
/*
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* Copyright (c) 2023, 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 8315248
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* @summary AssertionError in Name.compareTo
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* @modules jdk.compiler/com.sun.tools.javac.util
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*
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* @run main TestNameTables
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*/
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import java.io.PrintStream;
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import java.util.List;
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import java.util.Objects;
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import com.sun.tools.javac.util.Context;
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import com.sun.tools.javac.util.Name;
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import com.sun.tools.javac.util.Names;
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import com.sun.tools.javac.util.Options;
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/**
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* Tests that CharSequence.compareTo works on CharSequence objects that may
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* come from different name tables.
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*
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* While the java.util.Name class generally specifies that operations involving
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* multiple Name objects should use names from the same table, that restriction
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* is harder to specify when the names are widened CharSequence objects.
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*
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* The test can be extended if necessary to cover other methods on Name,
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* if the restrictions on Name are relaxed to permit more mix-and-match usages.
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*/
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public class TestNameTables {
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public static void main(String... args) {
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new TestNameTables().run();
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}
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public static final String USE_SHARED_TABLE = "useSharedTable";
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public static final String USE_UNSHARED_TABLE = "useUnsharedTable";
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public static final String USE_STRING_TABLE = "useStringTable";
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public final List<String> ALL_TABLES = List.of(USE_SHARED_TABLE, USE_UNSHARED_TABLE, USE_STRING_TABLE);
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private final PrintStream out = System.err;
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void run() {
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for (var s : ALL_TABLES) {
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test(createNameTable(s));
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}
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for (var s1 : ALL_TABLES) {
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for (var s2 : ALL_TABLES) {
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test(createNameTable(s1), createNameTable(s2));
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}
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}
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}
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Name.Table createNameTable(String option) {
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Context c = new Context();
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Options o = Options.instance(c);
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o.put(option, "true");
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Names n = new Names(c);
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return n.table;
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}
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/**
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* Tests operations using a single name table.
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*
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* @param table the name table
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*/
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void test(Name.Table table) {
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test(table, table);
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}
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/**
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* Tests operations using distinct name tables, of either the same
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* or different impl types.
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*
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* @param table1 the first name table
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* @param table2 the second name table
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*/
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void test(Name.Table table1, Name.Table table2) {
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if (table1 == table2) {
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out.println("Testing " + table1);
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} else {
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out.println("Testing " + table1 + " : " + table2);
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}
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// tests are primarily that there are no issues manipulating names from
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// distinct name tables
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testCharSequenceCompare(table1, table2);
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}
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void testCharSequenceCompare(Name.Table table1, Name.Table table2) {
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Name n1 = table1.fromString("abc");
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Name n2 = table2.fromString("abc");
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checkEquals(CharSequence.compare(n1, n2), 0, "CharSequence.compare");
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}
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void checkEquals(Object found, Object expect, String op) {
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if (!Objects.equals(found, expect)) {
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out.println("Failed: " + op);
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out.println(" found: " + found);
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out.println(" expect: " + expect);
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}
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}
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} |