test/langtools/tools/javac/warnings/UnneededStrictfpWarningToolBox.java - toolchain/jdk/jdk21 - Git at Google

 /*
  * Copyright (c) 2021, 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 8244146
  * @summary Verify expected strictfp warnings are producted or not produced
  * @library /tools/lib
  * @modules jdk.compiler/com.sun.tools.javac.api
  *          jdk.compiler/com.sun.tools.javac.main
  * @build toolbox.ToolBox toolbox.JavacTask toolbox.TestRunner
  * @run main UnneededStrictfpWarningToolBox
  */

 import java.io.IOException;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Arrays;
 import java.util.List;

 import java.io.InputStream;
 import java.nio.file.Files;
 import java.util.EnumSet;
 import javax.tools.JavaFileManager;
 import javax.tools.JavaFileObject;
 import javax.tools.StandardLocation;
 import javax.tools.ToolProvider;
 import toolbox.JavacTask;
 import toolbox.Task;
 import toolbox.Task.Expect;
 import toolbox.TestRunner;
 import toolbox.ToolBox;

 public class UnneededStrictfpWarningToolBox extends TestRunner {

     private final ToolBox tb = new ToolBox();
     private final String fileSep = System.getProperty("file.separator");

     public UnneededStrictfpWarningToolBox() {
         super(System.err);
     }

     public static void main(String... args) throws Exception {
         new UnneededStrictfpWarningToolBox().runTests();
     }

     private void checkLog(List<String> log, List<String> expected) {
         if (!expected.equals(log)) {
             throw new AssertionError("Unexpected output: " + log);
         }
     }

     private void checkEmptyLog(List<String> log) {
         checkLog(log, List.of(""));
     }

     @Test
     public void testWithAndWithOutLint(Path base) throws IOException {
         Path src = base.resolve("src");

         tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING1_NO_SUPPRESSION);
         Path classes = base.resolve("classes");
         tb.createDirectories(classes);

         List<String> log;

         // Warning not enabled, no messages expected
         log = new JavacTask(tb)
                 .options("--release", "16", "-Werror")
                 .outdir(classes)
                 .files(tb.findJavaFiles(src))
                 .run(Expect.SUCCESS)
                 .writeAll()
                 .getOutputLines(Task.OutputKind.DIRECT);
         checkEmptyLog(log);

         // Warning not enabled, no messages expected
         log = new JavacTask(tb)
                 .options("-Xlint:-strictfp", "-Werror")
                 .outdir(classes)
                 .files(tb.findJavaFiles(src))
                 .run(Expect.SUCCESS)
                 .writeAll()
                 .getOutputLines(Task.OutputKind.DIRECT);
         checkEmptyLog(log);

         // Warning enabled, 5 messages expected
         log = new JavacTask(tb)
             .options("-XDrawDiagnostics")
                 .outdir(classes)
                 .files(tb.findJavaFiles(src))
                 .run(Expect.SUCCESS)
                 .writeAll()
                 .getOutputLines(Task.OutputKind.DIRECT);

         var expected = List.of("UnneededStrictfpWarning1.java:1:17: compiler.warn.strictfp",
                                "UnneededStrictfpWarning1.java:10:10: compiler.warn.strictfp",
                                "UnneededStrictfpWarning1.java:12:29: compiler.warn.strictfp",
                                "UnneededStrictfpWarning1.java:16:28: compiler.warn.strictfp",
                                "UnneededStrictfpWarning1.java:18:21: compiler.warn.strictfp",
                                "5 warnings");
         checkLog(log, expected);
     }

     @Test
     public void testTopLevelSuppression(Path base) throws IOException {
         Path src = base.resolve("src");

         tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING2_TOP_LEVEL_SUPPRESSION);
         Path classes = base.resolve("classes");
         tb.createDirectories(classes);

         List<String> log;

         // Warning implicitly enabled, no messages expected
         log = new JavacTask(tb)
                 .options("-Werror")
                 .outdir(classes)
                 .files(tb.findJavaFiles(src))
                 .run(Expect.SUCCESS)
                 .writeAll()
                 .getOutputLines(Task.OutputKind.DIRECT);
         checkEmptyLog(log);

         // Warning explicitly enabled, no messages expected
         log = new JavacTask(tb)
                 .options("-Xlint:strictfp", "-Werror")
                 .outdir(classes)
                 .files(tb.findJavaFiles(src))
                 .run(Expect.SUCCESS)
                 .writeAll()
                 .getOutputLines(Task.OutputKind.DIRECT);
         checkEmptyLog(log);
     }

     @Test
     public void testInnerSuppression(Path base) throws IOException {
         Path src = base.resolve("src");

         tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING3_INNER_SUPPRESSION);
         Path classes = base.resolve("classes");
         tb.createDirectories(classes);

         // Warning enabled, 3 messages expected
         List<String> log = new JavacTask(tb)
             .options("-XDrawDiagnostics")
                 .outdir(classes)
                 .files(tb.findJavaFiles(src))
                 .run(Expect.SUCCESS)
                 .writeAll()
                 .getOutputLines(Task.OutputKind.DIRECT);

         var expected = List.of("UnneededStrictfpWarning3.java:1:17: compiler.warn.strictfp",
                                "UnneededStrictfpWarning3.java:10:10: compiler.warn.strictfp",
                                "UnneededStrictfpWarning3.java:17:28: compiler.warn.strictfp",
                                "3 warnings");
         checkLog(log, expected);
     }

     protected void runTests() throws Exception {
         runTests(m -> new Object[] { Paths.get(m.getName()).toAbsolutePath() });
     }

     // If warnings are enabled, should generate 5 warnings for the 5
     // explicit uses of strictfp.
     private static final String UNNEEDED_STRICTFP_WARNING1_NO_SUPPRESSION =
         """
         public strictfp class UnneededStrictfpWarning1 {
             // Implicit strictfp, no warning
             public UnneededStrictfpWarning1() {super();}

             public static void main(String... args) {
                 return;
             }
         }

         strictfp interface StrictfpInterface {
             default double foo() {return 42.0;};
             default strictfp double bar() {return 21.0;};
         }

         class StrictfpMethod {
             static strictfp double quux() {return 42.0;}

             static strictfp class NestedStrictfpClass {}
         }
         """;

     // If warnings are enabled, no warnings should be generated due to
     // suppression at the top-most level.
     private static final String UNNEEDED_STRICTFP_WARNING2_TOP_LEVEL_SUPPRESSION =
         """
         @SuppressWarnings("strictfp")
         public strictfp class UnneededStrictfpWarning2 {
             // Implicit strictfp, no warning
             public UnneededStrictfpWarning2() {super();}

             public static void main(String... args) {
                 return;
             }
         }

         @SuppressWarnings("strictfp")
         strictfp interface StrictfpInterface {
             default double foo() {return 42.0;};
             default strictfp double bar() {return 21.0;};
         }

         @SuppressWarnings("strictfp")
         class StrictfpMethod {
             static strictfp double quux() {return 42.0;}

             static strictfp class NestedStrictfpClass {}
         }
         """;

     // If warnings are enabled, 3 warnings should be generated.
     private static final String UNNEEDED_STRICTFP_WARNING3_INNER_SUPPRESSION =
         """
         public strictfp class UnneededStrictfpWarning3 {
             // Implicit strictfp, no warning
             public UnneededStrictfpWarning3() {super();}

             public static void main(String... args) {
                 return;
             }
         }

         strictfp interface StrictfpInterface {
             default double foo() {return 42.0;};
             @SuppressWarnings("strictfp")
             default strictfp double bar() {return 21.0;};
         }

         class StrictfpMethod {
             static strictfp double quux() {return 42.0;}

             @SuppressWarnings("strictfp")
             static strictfp class NestedStrictfpClass {}
         }
         """;
 }
	/*
	* Copyright (c) 2021, 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 8244146
	* @summary Verify expected strictfp warnings are producted or not produced
	* @library /tools/lib
	* @modules jdk.compiler/com.sun.tools.javac.api
	* jdk.compiler/com.sun.tools.javac.main
	* @build toolbox.ToolBox toolbox.JavacTask toolbox.TestRunner
	* @run main UnneededStrictfpWarningToolBox
	*/

	import java.io.IOException;
	import java.nio.file.Path;
	import java.nio.file.Paths;
	import java.util.Arrays;
	import java.util.List;

	import java.io.InputStream;
	import java.nio.file.Files;
	import java.util.EnumSet;
	import javax.tools.JavaFileManager;
	import javax.tools.JavaFileObject;
	import javax.tools.StandardLocation;
	import javax.tools.ToolProvider;
	import toolbox.JavacTask;
	import toolbox.Task;
	import toolbox.Task.Expect;
	import toolbox.TestRunner;
	import toolbox.ToolBox;

	public class UnneededStrictfpWarningToolBox extends TestRunner {

	private final ToolBox tb = new ToolBox();
	private final String fileSep = System.getProperty("file.separator");

	public UnneededStrictfpWarningToolBox() {
	super(System.err);
	}

	public static void main(String... args) throws Exception {
	new UnneededStrictfpWarningToolBox().runTests();
	}

	private void checkLog(List<String> log, List<String> expected) {
	if (!expected.equals(log)) {
	throw new AssertionError("Unexpected output: " + log);
	}
	}

	private void checkEmptyLog(List<String> log) {
	checkLog(log, List.of(""));
	}

	@Test
	public void testWithAndWithOutLint(Path base) throws IOException {
	Path src = base.resolve("src");

	tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING1_NO_SUPPRESSION);
	Path classes = base.resolve("classes");
	tb.createDirectories(classes);

	List<String> log;

	// Warning not enabled, no messages expected
	log = new JavacTask(tb)
	.options("--release", "16", "-Werror")
	.outdir(classes)
	.files(tb.findJavaFiles(src))
	.run(Expect.SUCCESS)
	.writeAll()
	.getOutputLines(Task.OutputKind.DIRECT);
	checkEmptyLog(log);

	// Warning not enabled, no messages expected
	log = new JavacTask(tb)
	.options("-Xlint:-strictfp", "-Werror")
	.outdir(classes)
	.files(tb.findJavaFiles(src))
	.run(Expect.SUCCESS)
	.writeAll()
	.getOutputLines(Task.OutputKind.DIRECT);
	checkEmptyLog(log);

	// Warning enabled, 5 messages expected
	log = new JavacTask(tb)
	.options("-XDrawDiagnostics")
	.outdir(classes)
	.files(tb.findJavaFiles(src))
	.run(Expect.SUCCESS)
	.writeAll()
	.getOutputLines(Task.OutputKind.DIRECT);

	var expected = List.of("UnneededStrictfpWarning1.java:1:17: compiler.warn.strictfp",
	"UnneededStrictfpWarning1.java:10:10: compiler.warn.strictfp",
	"UnneededStrictfpWarning1.java:12:29: compiler.warn.strictfp",
	"UnneededStrictfpWarning1.java:16:28: compiler.warn.strictfp",
	"UnneededStrictfpWarning1.java:18:21: compiler.warn.strictfp",
	"5 warnings");
	checkLog(log, expected);
	}

	@Test
	public void testTopLevelSuppression(Path base) throws IOException {
	Path src = base.resolve("src");

	tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING2_TOP_LEVEL_SUPPRESSION);
	Path classes = base.resolve("classes");
	tb.createDirectories(classes);

	List<String> log;

	// Warning implicitly enabled, no messages expected
	log = new JavacTask(tb)
	.options("-Werror")
	.outdir(classes)
	.files(tb.findJavaFiles(src))
	.run(Expect.SUCCESS)
	.writeAll()
	.getOutputLines(Task.OutputKind.DIRECT);
	checkEmptyLog(log);

	// Warning explicitly enabled, no messages expected
	log = new JavacTask(tb)
	.options("-Xlint:strictfp", "-Werror")
	.outdir(classes)
	.files(tb.findJavaFiles(src))
	.run(Expect.SUCCESS)
	.writeAll()
	.getOutputLines(Task.OutputKind.DIRECT);
	checkEmptyLog(log);
	}

	@Test
	public void testInnerSuppression(Path base) throws IOException {
	Path src = base.resolve("src");

	tb.writeJavaFiles(src, UNNEEDED_STRICTFP_WARNING3_INNER_SUPPRESSION);
	Path classes = base.resolve("classes");
	tb.createDirectories(classes);

	// Warning enabled, 3 messages expected
	List<String> log = new JavacTask(tb)
	.options("-XDrawDiagnostics")
	.outdir(classes)
	.files(tb.findJavaFiles(src))
	.run(Expect.SUCCESS)
	.writeAll()
	.getOutputLines(Task.OutputKind.DIRECT);

	var expected = List.of("UnneededStrictfpWarning3.java:1:17: compiler.warn.strictfp",
	"UnneededStrictfpWarning3.java:10:10: compiler.warn.strictfp",
	"UnneededStrictfpWarning3.java:17:28: compiler.warn.strictfp",
	"3 warnings");
	checkLog(log, expected);
	}

	protected void runTests() throws Exception {
	runTests(m -> new Object[] { Paths.get(m.getName()).toAbsolutePath() });
	}

	// If warnings are enabled, should generate 5 warnings for the 5
	// explicit uses of strictfp.
	private static final String UNNEEDED_STRICTFP_WARNING1_NO_SUPPRESSION =
	"""
	public strictfp class UnneededStrictfpWarning1 {
	// Implicit strictfp, no warning
	public UnneededStrictfpWarning1() {super();}

	public static void main(String... args) {
	return;
	}
	}

	strictfp interface StrictfpInterface {
	default double foo() {return 42.0;};
	default strictfp double bar() {return 21.0;};
	}

	class StrictfpMethod {
	static strictfp double quux() {return 42.0;}

	static strictfp class NestedStrictfpClass {}
	}
	""";

	// If warnings are enabled, no warnings should be generated due to
	// suppression at the top-most level.
	private static final String UNNEEDED_STRICTFP_WARNING2_TOP_LEVEL_SUPPRESSION =
	"""
	@SuppressWarnings("strictfp")
	public strictfp class UnneededStrictfpWarning2 {
	// Implicit strictfp, no warning
	public UnneededStrictfpWarning2() {super();}

	public static void main(String... args) {
	return;
	}
	}

	@SuppressWarnings("strictfp")
	strictfp interface StrictfpInterface {
	default double foo() {return 42.0;};
	default strictfp double bar() {return 21.0;};
	}

	@SuppressWarnings("strictfp")
	class StrictfpMethod {
	static strictfp double quux() {return 42.0;}

	static strictfp class NestedStrictfpClass {}
	}
	""";

	// If warnings are enabled, 3 warnings should be generated.
	private static final String UNNEEDED_STRICTFP_WARNING3_INNER_SUPPRESSION =
	"""
	public strictfp class UnneededStrictfpWarning3 {
	// Implicit strictfp, no warning
	public UnneededStrictfpWarning3() {super();}

	public static void main(String... args) {
	return;
	}
	}

	strictfp interface StrictfpInterface {
	default double foo() {return 42.0;};
	@SuppressWarnings("strictfp")
	default strictfp double bar() {return 21.0;};
	}

	class StrictfpMethod {
	static strictfp double quux() {return 42.0;}

	@SuppressWarnings("strictfp")
	static strictfp class NestedStrictfpClass {}
	}
	""";
	}