263 lines
9.0 KiB
Java
263 lines
9.0 KiB
Java
/*
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* Copyright (c) 2021, 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 8244146
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* @summary Verify expected strictfp warnings are producted or not produced
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* @library /tools/lib
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* @modules jdk.compiler/com.sun.tools.javac.api
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* jdk.compiler/com.sun.tools.javac.main
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* @build toolbox.ToolBox toolbox.JavacTask toolbox.TestRunner
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* @run main UnneededStrictfpWarningToolBox
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*/
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import java.io.IOException;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.Arrays;
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import java.util.List;
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import java.io.InputStream;
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import java.nio.file.Files;
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import java.util.EnumSet;
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import javax.tools.JavaFileManager;
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import javax.tools.JavaFileObject;
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import javax.tools.StandardLocation;
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import javax.tools.ToolProvider;
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import toolbox.JavacTask;
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import toolbox.Task;
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import toolbox.Task.Expect;
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import toolbox.TestRunner;
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import toolbox.ToolBox;
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public class UnneededStrictfpWarningToolBox extends TestRunner {
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private final ToolBox tb = new ToolBox();
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private final String fileSep = System.getProperty("file.separator");
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public UnneededStrictfpWarningToolBox() {
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super(System.err);
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}
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public static void main(String... args) throws Exception {
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new UnneededStrictfpWarningToolBox().runTests();
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}
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private void checkLog(List<String> log, List<String> expected) {
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if (!expected.equals(log)) {
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throw new AssertionError("Unexpected output: " + log);
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}
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}
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private void checkEmptyLog(List<String> log) {
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checkLog(log, List.of(""));
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}
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@Test
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public void testWithAndWithOutLint(Path base) throws IOException {
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Path src = base.resolve("src");
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tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING1_NO_SUPPRESSION);
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Path classes = base.resolve("classes");
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tb.createDirectories(classes);
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List<String> log;
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// Warning not enabled, no messages expected
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log = new JavacTask(tb)
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.options("--release", "16", "-Werror")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Expect.SUCCESS)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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checkEmptyLog(log);
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// Warning not enabled, no messages expected
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log = new JavacTask(tb)
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.options("-Xlint:-strictfp", "-Werror")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Expect.SUCCESS)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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checkEmptyLog(log);
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// Warning enabled, 5 messages expected
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log = new JavacTask(tb)
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.options("-XDrawDiagnostics")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Expect.SUCCESS)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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var expected = List.of("UnneededStrictfpWarning1.java:1:17: compiler.warn.strictfp",
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"UnneededStrictfpWarning1.java:10:10: compiler.warn.strictfp",
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"UnneededStrictfpWarning1.java:12:29: compiler.warn.strictfp",
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"UnneededStrictfpWarning1.java:16:28: compiler.warn.strictfp",
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"UnneededStrictfpWarning1.java:18:21: compiler.warn.strictfp",
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"5 warnings");
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checkLog(log, expected);
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}
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@Test
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public void testTopLevelSuppression(Path base) throws IOException {
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Path src = base.resolve("src");
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tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING2_TOP_LEVEL_SUPPRESSION);
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Path classes = base.resolve("classes");
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tb.createDirectories(classes);
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List<String> log;
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// Warning implicitly enabled, no messages expected
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log = new JavacTask(tb)
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.options("-Werror")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Expect.SUCCESS)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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checkEmptyLog(log);
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// Warning explicitly enabled, no messages expected
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log = new JavacTask(tb)
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.options("-Xlint:strictfp", "-Werror")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Expect.SUCCESS)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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checkEmptyLog(log);
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}
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@Test
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public void testInnerSuppression(Path base) throws IOException {
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Path src = base.resolve("src");
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tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING3_INNER_SUPPRESSION);
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Path classes = base.resolve("classes");
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tb.createDirectories(classes);
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// Warning enabled, 3 messages expected
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List<String> log = new JavacTask(tb)
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.options("-XDrawDiagnostics")
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.outdir(classes)
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.files(tb.findJavaFiles(src))
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.run(Expect.SUCCESS)
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.writeAll()
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.getOutputLines(Task.OutputKind.DIRECT);
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var expected = List.of("UnneededStrictfpWarning3.java:1:17: compiler.warn.strictfp",
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"UnneededStrictfpWarning3.java:10:10: compiler.warn.strictfp",
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"UnneededStrictfpWarning3.java:17:28: compiler.warn.strictfp",
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"3 warnings");
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checkLog(log, expected);
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}
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protected void runTests() throws Exception {
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runTests(m -> new Object[] { Paths.get(m.getName()).toAbsolutePath() });
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}
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// If warnings are enabled, should generate 5 warnings for the 5
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// explicit uses of strictfp.
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private static final String UNNEEDED_STRICTFP_WARNING1_NO_SUPPRESSION =
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"""
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public strictfp class UnneededStrictfpWarning1 {
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// Implicit strictfp, no warning
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public UnneededStrictfpWarning1() {super();}
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public static void main(String... args) {
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return;
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}
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}
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strictfp interface StrictfpInterface {
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default double foo() {return 42.0;};
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default strictfp double bar() {return 21.0;};
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}
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class StrictfpMethod {
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static strictfp double quux() {return 42.0;}
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static strictfp class NestedStrictfpClass {}
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}
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""";
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// If warnings are enabled, no warnings should be generated due to
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// suppression at the top-most level.
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private static final String UNNEEDED_STRICTFP_WARNING2_TOP_LEVEL_SUPPRESSION =
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"""
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@SuppressWarnings("strictfp")
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public strictfp class UnneededStrictfpWarning2 {
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// Implicit strictfp, no warning
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public UnneededStrictfpWarning2() {super();}
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public static void main(String... args) {
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return;
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}
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}
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@SuppressWarnings("strictfp")
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strictfp interface StrictfpInterface {
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default double foo() {return 42.0;};
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default strictfp double bar() {return 21.0;};
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}
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@SuppressWarnings("strictfp")
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class StrictfpMethod {
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static strictfp double quux() {return 42.0;}
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static strictfp class NestedStrictfpClass {}
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}
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""";
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// If warnings are enabled, 3 warnings should be generated.
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private static final String UNNEEDED_STRICTFP_WARNING3_INNER_SUPPRESSION =
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"""
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public strictfp class UnneededStrictfpWarning3 {
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// Implicit strictfp, no warning
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public UnneededStrictfpWarning3() {super();}
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public static void main(String... args) {
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return;
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}
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}
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strictfp interface StrictfpInterface {
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default double foo() {return 42.0;};
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@SuppressWarnings("strictfp")
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default strictfp double bar() {return 21.0;};
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}
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class StrictfpMethod {
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static strictfp double quux() {return 42.0;}
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@SuppressWarnings("strictfp")
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static strictfp class NestedStrictfpClass {}
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}
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""";
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}
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