test/langtools/tools/javah/6572945/T6572945.java
changeset 47216 71c04702a3d5
parent 36991 7f814aac1f80
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/langtools/tools/javah/6572945/T6572945.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 2007, 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 6572945
+ * @summary rewrite javah as an annotation processor, instead of as a doclet
+ * @modules jdk.compiler/com.sun.tools.javah
+ * @build TestClass1 TestClass2 TestClass3
+ * @run main T6572945
+ */
+
+import java.io.*;
+import java.util.*;
+import com.sun.tools.javah.Main;
+
+public class T6572945
+{
+    static File testSrc = new File(System.getProperty("test.src", "."));
+    static File testClasses = new File(System.getProperty("test.classes", "."));
+    static boolean isWindows = System.getProperty("os.name").startsWith("Windows");
+
+    public static void main(String... args)
+        throws IOException, InterruptedException
+    {
+        boolean ok = new T6572945().run(args);
+        if (!ok)
+            throw new Error("Test Failed");
+    }
+
+    public boolean run(String[] args)
+        throws IOException, InterruptedException
+    {
+        if (args.length == 1)
+            jdk = new File(args[0]);
+
+        test("-o", "jni.file.1",  "-jni", "TestClass1");
+        test("-o", "jni.file.2",  "-jni", "TestClass1", "TestClass2");
+        test("-d", "jni.dir.1",   "-jni", "TestClass1", "TestClass2");
+        test("-o", "jni.file.3",  "-jni", "TestClass3");
+
+        // The following tests are disabled because llni support has been
+        // discontinued, and because bugs in old javah means that character
+        // for character testing against output from old javah does not work.
+        // In fact, the LLNI impl in new javah is actually better than the
+        // impl in old javah because of a couple of significant bug fixes.
+
+//        test("-o", "llni.file.1", "-llni", "TestClass1");
+//        test("-o", "llni.file.2", "-llni", "TestClass1", "TestClass2");
+//        test("-d", "llni.dir.1",  "-llni", "TestClass1", "TestClass2");
+//        test("-o", "llni.file.3", "-llni", "TestClass3");
+
+        return (errors == 0);
+    }
+
+    void test(String... args)
+        throws IOException, InterruptedException
+    {
+        String[] cp_args = new String[args.length + 2];
+        cp_args[0] = "-classpath";
+        cp_args[1] = testClasses.getPath();
+        System.arraycopy(args, 0, cp_args, 2, args.length);
+
+        if (jdk != null)
+            init(cp_args);
+
+        File out = null;
+        for (int i = 0; i < args.length; i++) {
+            if (args[i].equals("-o")) {
+                out = new File(args[++i]);
+                break;
+            } else if (args[i].equals("-d")) {
+                out = new File(args[++i]);
+                out.mkdirs();
+                break;
+            }
+        }
+
+        try {
+            System.out.println("test: " + Arrays.asList(cp_args));
+
+//            // Uncomment and use the following lines to execute javah via the
+//            // command line -- for example, to run old javah and set up the golden files
+//            List<String> cmd = new ArrayList<String>();
+//            File javaHome = new File(System.getProperty("java.home"));
+//            if (javaHome.getName().equals("jre"))
+//                javaHome = javaHome.getParentFile();
+//            File javah = new File(new File(javaHome, "bin"), "javah");
+//            cmd.add(javah.getPath());
+//            cmd.addAll(Arrays.asList(cp_args));
+//            ProcessBuilder pb = new ProcessBuilder(cmd);
+//            pb.redirectErrorStream(true);
+//            pb.start();
+//            Process p = pb.start();
+//            String line;
+//            BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
+//            while ((line = in.readLine()) != null)
+//                System.err.println(line);
+//            in.close();
+//            int rc = p.waitFor();
+
+            // Use new javah
+            PrintWriter err = new PrintWriter(System.err, true);
+            int rc = Main.run(cp_args, err);
+
+            if (rc != 0) {
+                error("javah failed: rc=" + rc);
+                return;
+            }
+
+            // The golden files use the LL suffix for long constants, which
+            // is used on Linux and Solaris.   On Windows, the suffix is i64,
+            // so compare will update the golden files on the fly before the
+            // final comparison.
+            compare(new File(new File(testSrc, "gold"), out.getName()), out);
+        } catch (Throwable t) {
+            t.printStackTrace();
+            error("javah threw exception");
+        }
+    }
+
+    void init(String[] args) throws IOException, InterruptedException {
+        String[] cmdArgs = new String[args.length + 1];
+        cmdArgs[0] = new File(new File(jdk, "bin"), "javah").getPath();
+        System.arraycopy(args, 0, cmdArgs, 1, args.length);
+
+        System.out.println("init: " + Arrays.asList(cmdArgs));
+
+        ProcessBuilder pb = new ProcessBuilder(cmdArgs);
+        pb.directory(new File(testSrc, "gold"));
+        pb.redirectErrorStream(true);
+        Process p = pb.start();
+        BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
+        String line;
+        while ((line = in.readLine()) != null)
+            System.out.println("javah: " + line);
+        int rc = p.waitFor();
+        if (rc != 0)
+            error("javah: exit code " + rc);
+    }
+
+    /** Compare two directories.
+     *  @param f1 The golden directory
+     *  @param f2 The directory to be compared
+     */
+    void compare(File f1, File f2) {
+        compare(f1, f2, null);
+    }
+
+    /** Compare two files or directories
+     *  @param f1 The golden directory
+     *  @param f2 The directory to be compared
+     *  @param p An optional path identifying a file within the two directories
+     */
+    void compare(File f1, File f2, String p) {
+        File f1p = (p == null ? f1 : new File(f1, p));
+        File f2p = (p == null ? f2 : new File(f2, p));
+        System.out.println("compare " + f1p + " " + f2p);
+        if (f1p.isDirectory() && f2p.isDirectory()) {
+            Set<String> children = new HashSet<String>();
+            children.addAll(Arrays.asList(f1p.list()));
+            children.addAll(Arrays.asList(f2p.list()));
+            for (String c: children) {
+                compare(f1, f2, new File(p, c).getPath()); // null-safe for p
+            }
+        }
+        else if (f1p.isFile() && f2p.isFile()) {
+            String s1 = read(f1p);
+            if (isWindows) {
+                // f1/s1 is the golden file
+                // on Windows, long constants use the i64 suffix, not LL
+                s1 = s1.replaceAll("( [0-9]+)LL\n", "$1i64\n");
+            }
+            String s2 = read(f2p);
+            if (!s1.equals(s2)) {
+                System.out.println("File: " + f1p + "\n" + s1);
+                System.out.println("File: " + f2p + "\n" + s2);
+                error("Files differ: " + f1p + " " + f2p);
+            }
+        }
+        else if (f1p.exists() && !f2p.exists())
+            error("Only in " + f1 + ": " + p);
+        else if (f2p.exists() && !f1p.exists())
+            error("Only in " + f2 + ": " + p);
+        else
+            error("Files differ: " + f1p + " " + f2p);
+    }
+
+    private String read(File f) {
+        try {
+            BufferedReader in = new BufferedReader(new FileReader(f));
+            try {
+                StringBuilder sb = new StringBuilder((int) f.length());
+                String line;
+                while ((line = in.readLine()) != null) {
+                    sb.append(line);
+                    sb.append("\n");
+                }
+                return sb.toString();
+            } finally {
+                try {
+                    in.close();
+                } catch (IOException e) {
+                }
+            }
+        } catch (IOException e) {
+            error("error reading " + f + ": " + e);
+            return "";
+        }
+    }
+
+
+    private void error(String msg) {
+        System.out.println(msg);
+        errors++;
+    }
+
+    private int errors;
+    private File jdk;
+}