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/*
* Copyright (c) 2018, 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 8199194
* @summary smoke test for enable-preview command line flag
* @modules jdk.compiler/com.sun.tools.javac.code
*/
import java.io.*;
import java.util.*;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import com.sun.tools.javac.code.Source;
public class PreviewOptionTest {
public static void main(String... args) throws Exception {
PreviewOptionTest t = new PreviewOptionTest();
t.run();
}
public void run() throws Exception {
try (FileWriter out = new FileWriter("Test.java")) {
out.write("class Test { }");
}
testWithNoFlags();
List<Source> versionsToTest = Stream.of(Source.values())
.filter(s -> s.compareTo(Source.MIN) >= 0)
.collect(Collectors.toList());
versionsToTest.forEach(this::testWithSourceFlag);
versionsToTest.forEach(this::testWithReleaseFlag);
if (errors > 0)
throw new Exception(errors + " errors occurred");
}
void testWithNoFlags() {
testInternal(null, null, true);
}
void testWithSourceFlag(Source source) {
testInternal(source, null, source != Source.DEFAULT);
}
void testWithReleaseFlag(Source release) {
testInternal(null, release, release != Source.DEFAULT);
}
void testInternal(Source source, Source release, boolean shouldFail) {
System.err.println("Test: source:" + source + ", release:" + release + " " + shouldFail + " " + shouldFail);
List<String> args = new ArrayList<>();
args.add("--enable-preview");
if (source != null) {
args.add("-source");
args.add(source.name);
}
if (release != null) {
args.add("--release");
args.add(release.name);
}
args.add("Test.java");
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
int rc = com.sun.tools.javac.Main.compile(args.toArray(new String[args.size()]), pw);
pw.close();
boolean hasErrors = rc != 0;
if (hasErrors != shouldFail) {
if (hasErrors) {
String out = sw.toString();
error("error not expected but found:\n" + out);
} else {
error("error expected but not found");
}
}
}
void error(String msg) {
System.err.println("error: " + msg);
errors++;
}
int errors;
}
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