--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/test/tools/javac/nativeHeaders/javahComparison/CompareTest.java Tue Mar 13 15:43:40 2012 -0700
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2007,2012 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 7150368
+ * @summary javac should include basic ability to generate native headers
+ */
+
+import java.io.File;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.nio.file.Files;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+public class CompareTest {
+ public static void main(String... args) throws Exception {
+ new CompareTest().run();
+ }
+
+ void run() throws Exception {
+ File srcDir = new File(System.getProperty("test.src"));
+ File classesDir = new File("classes");
+ classesDir.mkdirs();
+ File javacHeaders = new File("headers.javac");
+ javacHeaders.mkdirs();
+ File javahHeaders = new File("headers.javah");
+ javahHeaders.mkdirs();
+
+ List<String> javacArgs = new ArrayList<String>();
+ javacArgs.add("-d");
+ javacArgs.add(classesDir.getPath());
+ javacArgs.add("-h");
+ javacArgs.add(javacHeaders.getPath());
+ javacArgs.add("-XDjavah:full");
+
+ for (File f: srcDir.listFiles()) {
+ if (f.getName().matches("TestClass[0-9]+\\.java")) {
+ sourceFileCount++;
+ javacArgs.add(f.getPath());
+ }
+ }
+
+ int rc = com.sun.tools.javac.Main.compile(javacArgs.toArray(new String[javacArgs.size()]));
+ if (rc != 0)
+ throw new Exception("javac failed; rc=" + rc);
+
+ List<String> javahArgs = new ArrayList<String>();
+ javahArgs.add("-d");
+ javahArgs.add(javahHeaders.getPath());
+
+ for (File f: classesDir.listFiles()) {
+ if (f.getName().endsWith(".class")) {
+ javahArgs.add(inferBinaryName(f));
+ }
+ }
+
+ PrintWriter pw = new PrintWriter(System.out, true);
+ rc = com.sun.tools.javah.Main.run(javahArgs.toArray(new String[javahArgs.size()]), pw);
+ if (rc != 0)
+ throw new Exception("javah failed; rc=" + rc);
+
+ compare(javahHeaders, javacHeaders);
+
+ int javahHeaderCount = javahHeaders.list().length;
+ int javacHeaderCount = javacHeaders.list().length;
+
+ System.out.println(sourceFileCount + " .java files found");
+ System.out.println(javacHeaderCount + " .h files generated by javac");
+ System.out.println(javahHeaderCount + " .h files generated by javah");
+ System.out.println(compareCount + " header files compared");
+
+ if (javacHeaderCount != javahHeaderCount || javacHeaderCount != compareCount)
+ error("inconsistent counts");
+
+ if (errors > 0)
+ throw new Exception(errors + " errors occurred");
+ }
+
+ String inferBinaryName(File file) {
+ String name = file.getName();
+ return name.substring(0, name.length() - ".class".length()).replace("$", ".");
+ }
+
+ /** 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));
+ 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()) {
+ System.out.println("checking " + p);
+ compareCount++;
+ String s1 = read(f1p);
+ 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 {
+ return new String(Files.readAllBytes(f.toPath()));
+ } catch (IOException e) {
+ error("error reading " + f + ": " + e);
+ return "";
+ }
+ }
+
+ private void error(String msg) {
+ System.out.println(msg);
+ errors++;
+ }
+
+ private int errors;
+ private int compareCount;
+ private int sourceFileCount;
+}