test/jdk/java/io/DataInputStream/OpsAfterClose.java
changeset 47216 71c04702a3d5
parent 7668 d4a77089c587
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/java/io/DataInputStream/OpsAfterClose.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2006, 2010, 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  4181483
+ *  @summary Test if DataInputStream methods will check if the stream
+ *          has been closed.
+ */
+
+import java.io.*;
+
+public enum OpsAfterClose {
+
+        READ { boolean check(DataInputStream is) {
+                    try {
+                        int read = is.read();
+                        System.out.println("read returns: " + read);
+                    } catch (IOException io) {
+                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                        return true;
+                    }
+                    return false;
+             } },
+
+        READ_BUF { boolean check(DataInputStream is) {
+                    try {
+                        byte buf[] = new byte[2];
+                        int read = is.read(buf);
+                        System.out.println("read(buf) returns: " + read);
+                    } catch (IOException io) {
+                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                        return true;
+                    }
+                    return false;
+            } },
+        READ_BUF_OFF { boolean check(DataInputStream is) {
+                    try {
+                        byte buf[] = new byte[2];
+                        int len = 1;
+                        int read = is.read(buf, 0, len);
+                        System.out.println("read(buf, 0, len) returns: " + read);
+                    } catch (IOException io) {
+                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                        return true;
+                    }
+                    return false;
+             } },
+        AVAILABLE { boolean check(DataInputStream is) {
+                    try {
+                        int avail = is.available();
+                        System.out.println("available() returns: " + avail);
+                        return false;
+                    } catch (IOException io) {
+                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                        return true;
+                    }
+             } },
+        SKIP { boolean check(DataInputStream is) {
+                    try {
+                        long skipped = is.skip(1);
+                        System.out.println("skip() returns: " + skipped);
+                    } catch (IOException io) {
+                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                        return true;
+                    }
+                    return false;
+             } },
+        MARK { boolean check(DataInputStream is) {
+                    is.mark(20);
+                    return true;
+             } },
+        RESET { boolean check(DataInputStream is) {
+                    try {
+                        is.reset();
+                    } catch (IOException io) {
+                        System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                        return true;
+                    }
+                    return false;
+             } },
+        MARK_SUPPORTED { boolean check(DataInputStream is) {
+                    is.markSupported();
+                    return true;
+             } },
+        CLOSE { boolean check(DataInputStream is) {
+                try {
+                    is.close();
+                    return true; // No Exception thrown on windows
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true; // Exception thrown on solaris and linux
+                }
+            }},
+        READ_BYTE { boolean check(DataInputStream is) {
+                try {
+                    is.readByte();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_CHAR { boolean check(DataInputStream is) {
+                try {
+                    is.readChar();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_DOUBLE { boolean check(DataInputStream is) {
+                try {
+                    is.readDouble();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+
+        READ_FLOAT { boolean check(DataInputStream is) {
+                try {
+                    is.readFloat();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_INT { boolean check(DataInputStream is) {
+                try {
+                    is.readInt();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_LONG { boolean check(DataInputStream is) {
+                try {
+                    is.readLong();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_SHORT { boolean check(DataInputStream is) {
+                try {
+                    is.readShort();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_UnsignedByte { boolean check(DataInputStream is) {
+                try {
+                    is.readUnsignedByte();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_UnsignedShort { boolean check(DataInputStream is) {
+                try {
+                    is.readUnsignedShort();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_UTF { boolean check(DataInputStream is) {
+                try {
+                    is.readUTF();
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        SKIP_BYTES { boolean check(DataInputStream is) {
+                try {
+                    is.skipBytes(1);
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_FULLY { boolean check(DataInputStream is) {
+                try {
+                    is.readFully(new byte[1]);
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } },
+        READ_FULLY_BUF { boolean check(DataInputStream is) {
+                try {
+                    is.readFully(new byte[1], 0, 1);
+                } catch (IOException io) {
+                    System.out.print("Excep Msg: "+ io.getMessage() + ", ");
+                    return true;
+                }
+                return false;
+             } };
+
+
+    abstract boolean check(DataInputStream is);
+
+    public static void main(String args[]) throws Exception {
+
+        boolean failed = false;
+
+        File f = new File(System.getProperty("test.dir", "."),
+                          "f.txt");
+        f.createNewFile();
+        f.deleteOnExit();
+
+        FileInputStream fis = new FileInputStream(f);
+        try {
+            DataInputStream dis = new DataInputStream(
+                                    new FileInputStream(f));
+            try {
+                if (testDataInputStream(dis)) {
+                    failed = true;
+                }
+            } finally {
+                dis.close();
+            }
+        } finally {
+            fis.close();
+        }
+    }
+
+    private static boolean testDataInputStream(DataInputStream is)
+            throws Exception {
+        is.close();
+        boolean failed = false;
+        boolean result;
+        System.out.println("Testing :" + is);
+        for (OpsAfterClose op : OpsAfterClose.values()) {
+
+            result = op.check(is);
+            if (!result) {
+                failed = true;
+            }
+           System.out.println(op + ":" + result);
+        }
+        if (failed) {
+            System.out.println("Test failed for the failed operation{s}" +
+                        " above for :" + is);
+        }
+        return failed;
+    }
+}