jdk/test/langtools/tools/javac/lexer/AsciiSubCharTest.java

117 lines
4.1 KiB
Java

/*
* Copyright (c) 2026, 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
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*/
/**
* @test
* @bug 8371873
* @summary Check for proper handling of trailing ASCII SUB character
* @library /tools/lib
* @modules
* jdk.compiler/com.sun.tools.javac.api
* jdk.compiler/com.sun.tools.javac.main
* @build toolbox.ToolBox toolbox.JavacTask
* @run junit AsciiSubCharTest
*/
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.*;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;
import toolbox.JavacTask;
import toolbox.Task;
import toolbox.ToolBox;
public class AsciiSubCharTest {
ToolBox tb = new ToolBox();
Path base;
@Test
public void testTrailingAsciiSubIsIgnored() throws Exception {
Path classes = base.resolve("classes");
Files.createDirectories(classes);
new JavacTask(tb)
.options("-d", classes.toString())
.sources("""
public class Test {
void main(String... args) { IO.println("\u001A"); }
}
\u001A""")
.run()
.writeAll();
}
@Test
public void testMultipleTrailingAsciiSubAreReported() throws Exception {
Path classes = base.resolve("classes");
Files.createDirectories(classes);
List<String> out = new JavacTask(tb)
.options("-d", classes.toString(), "-XDrawDiagnostics", "-nowarn")
.sources("""
public class Test {
void main(String... args) { IO.println("\u001A"); }
}
\u001A\u001A""")
.run(Task.Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
tb.checkEqual(out, List.of(
"Test.java:4:1: compiler.err.illegal.char: \\u001a",
"Test.java:4:2: compiler.err.premature.eof",
"2 errors"));
}
@Test
public void test8371873() throws Exception {
Path classes = base.resolve("classes");
Files.createDirectories(classes);
List<String> out = new JavacTask(tb)
.options("-d", classes.toString(), "-XDrawDiagnostics", "-nowarn")
.sources("""
public class Test {
void main(String... args) { IO.println("\u001A"); }
}
\u001A\u0001""")
.run(Task.Expect.FAIL)
.writeAll()
.getOutputLines(Task.OutputKind.DIRECT);
tb.checkEqual(out, List.of(
"Test.java:4:1: compiler.err.illegal.char: \\u001a",
"Test.java:4:2: compiler.err.illegal.char: \\u0001",
"Test.java:4:3: compiler.err.premature.eof",
"3 errors"));
}
@BeforeEach
public void setUp(TestInfo info) {
base = Paths.get(".")
.resolve(info.getTestMethod()
.orElseThrow()
.getName());
}
}