langtools/test/tools/javac/processing/OverwriteInitialInput.java
changeset 43368 cabe410a7a5c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/processing/OverwriteInitialInput.java	Thu Jan 26 14:11:38 2017 +0100
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2015, 2016, 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 8067747
+ * @summary Verify the correct Filer behavior w.r.t. initial inputs
+ *          (should throw FilerException when overwriting initial inputs).
+ * @library /tools/lib /tools/javac/lib
+ * @modules jdk.compiler/com.sun.tools.javac.api
+ *          jdk.compiler/com.sun.tools.javac.main
+ * @build toolbox.ToolBox toolbox.JavacTask toolbox.Task
+ * @build OverwriteInitialInput JavacTestingAbstractProcessor
+ * @run main OverwriteInitialInput
+ */
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.Writer;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Set;
+
+import javax.annotation.processing.FilerException;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedOptions;
+import javax.lang.model.element.TypeElement;
+import javax.tools.StandardLocation;
+
+import toolbox.JavacTask;
+import toolbox.Task;
+import toolbox.ToolBox;
+
+@SupportedOptions({OverwriteInitialInput.EXPECT_EXCEPTION_OPTION,
+                   OverwriteInitialInput.TEST_SOURCE
+                  })
+public class OverwriteInitialInput extends JavacTestingAbstractProcessor {
+
+    public static final String EXPECT_EXCEPTION_OPTION = "exception";
+    public static final String TEST_SOURCE = "testSource";
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+        if (roundEnv.processingOver()) {
+            if (processingEnv.getOptions().containsKey(EXPECT_EXCEPTION_OPTION)) {
+                try (Writer w = processingEnv.getFiler().createSourceFile("Test").openWriter()) {
+                    throw new AssertionError("Expected IOException not seen.");
+                } catch (FilerException ex) {
+                    //expected
+                } catch (IOException ex) {
+                    throw new IllegalStateException(ex);
+                }
+                try (OutputStream out = processingEnv.getFiler().createClassFile("Test").openOutputStream()) {
+                    throw new AssertionError("Expected IOException not seen.");
+                } catch (FilerException ex) {
+                    //expected
+                } catch (IOException ex) {
+                    throw new IllegalStateException(ex);
+                }
+                if (processingEnv.getOptions().containsKey(TEST_SOURCE)) {
+                    try (OutputStream out = processingEnv.getFiler().createResource(StandardLocation.SOURCE_OUTPUT, "", "Test.java").openOutputStream()) {
+                        throw new AssertionError("Expected IOException not seen.");
+                    } catch (FilerException ex) {
+                        //expected
+                    } catch (IOException ex) {
+                        throw new IllegalStateException(ex);
+                    }
+                } else {
+                    try (OutputStream out = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", "Test2.class").openOutputStream()) {
+                        throw new AssertionError("Expected IOException not seen.");
+                    } catch (FilerException ex) {
+                        //expected
+                    } catch (IOException ex) {
+                        throw new IllegalStateException(ex);
+                    }
+                }
+            } else {
+                try (Writer w = processingEnv.getFiler().createSourceFile("Test").openWriter()) {
+                    w.append("public class Test {}");
+                } catch (IOException ex) {
+                    throw new IllegalStateException(ex);
+                }
+                try (OutputStream out = processingEnv.getFiler().createClassFile("Test2").openOutputStream()) {
+                    try (ToolBox.MemoryFileManager mfm = new ToolBox.MemoryFileManager()) {
+                        ToolBox tb = new ToolBox();
+                        new JavacTask(tb)
+                          .sources("public class Test2 {}")
+                          .fileManager(mfm)
+                          .run()
+                          .writeAll();
+
+                        out.write(mfm.getFileBytes(StandardLocation.CLASS_OUTPUT, "Test2"));
+                    }
+                } catch (IOException ex) {
+                    throw new IllegalStateException(ex);
+                }
+            }
+        }
+
+        return false;
+    }
+
+    public static void main(String... args) throws IOException {
+        new OverwriteInitialInput().run();
+    }
+
+    void run() throws IOException {
+        run(Task.Mode.API);
+        run(Task.Mode.CMDLINE);
+    }
+
+    void run(Task.Mode mode) throws IOException {
+        ToolBox tb = new ToolBox();
+        Path path = Paths.get("output");
+        if (Files.isDirectory(path))
+            tb.cleanDirectory(path);
+        Files.deleteIfExists(path);
+        tb.createDirectories(path);
+        Path thisSource = Paths.get(System.getProperty("test.src"), "OverwriteInitialInput.java");
+        new JavacTask(tb, mode).options("-processor", "OverwriteInitialInput",
+                                        "-d", path.toString(),
+                                        "-XDaccessInternalAPI=true")
+                               .files(thisSource)
+                               .run()
+                               .writeAll();
+        new JavacTask(tb, mode).options("-processor", "OverwriteInitialInput",
+                                        "-d", path.toString(),
+                                        "-A" + EXPECT_EXCEPTION_OPTION,
+                                        "-A" + TEST_SOURCE,
+                                        "-XDaccessInternalAPI=true")
+                               .files(thisSource, path.resolve("Test.java"))
+                               .run()
+                               .writeAll();
+        new JavacTask(tb, mode).options("-processor", "OverwriteInitialInput",
+                                        "-classpath", path.toString(),
+                                        "-processorpath", System.getProperty("test.class.path"),
+                                        "-d", path.toString(),
+                                        "-A" + EXPECT_EXCEPTION_OPTION,
+                                        "-XDaccessInternalAPI=true")
+                               .classes("Test", "Test2")
+                               .run()
+                               .writeAll();
+    }
+
+}