8027411: javap tonga tests cleanup: write a java program to test invalid options -h and -b

Reviewed-by: jjg

langtools/test/tools/javap/InvalidOptions.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (c) 2013, 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 8027411
+ * @summary test invalid options -h and -b
+ */
+
+import java.io.*;
+import java.util.zip.*;
+
+public class InvalidOptions {
+    int errorCount;
+    String log;
+
+    public static void main(String[] args) throws Exception {
+        new InvalidOptions().run();
+    }
+
+    void run() throws Exception {
+        test(2, "-h", "Error: -h is no longer available - use the javah program");
+        test(2, "-b", "Error: unknown option: -b",
+                      "Usage: javap <options> <classes>",
+                      "use -help for a list of possible options");
+        if (errorCount > 0)
+            throw new Exception(errorCount + " errors received");
+    }
+
+    void test(int expect, String option, String ... expectedOutput) {
+        String output = runJavap(expect, option);
+        verify(output, expectedOutput);
+    }
+
+    String runJavap(int expect, String... option) {
+        StringWriter sw = new StringWriter();
+        PrintWriter pw = new PrintWriter(sw);
+        int rc = com.sun.tools.javap.Main.run(option, pw);
+        pw.close();
+        System.out.println("javap prints:");
+        System.out.println(sw);
+        if (rc != expect)
+           throw new Error("Expect to return " + expect + ", but return " + rc);
+        return sw.toString();
+    }
+
+    void verify(String output, String... expects) {
+        for (String expect: expects) {
+            if (!output.contains(expect))
+                error(expect + " not found");
+        }
+    }
+
+    void error(String msg) {
+        System.err.println(msg);
+        errorCount++;
+    }
+}