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/**
* @test
* @bug 6359397
* @summary Test if FileInputStream methods will check if the stream
* has been closed.
*/
import java.io.*;
public enum OpsAfterClose {
READ { boolean check(FileInputStream r) {
try {
r.read();
} catch (IOException io) {
System.out.print("Excep Msg: "+ io.getMessage() + ", ");
return true;
}
return false;
} },
READ_BUF { boolean check(FileInputStream r) {
try {
byte buf[] = new byte[2];
r.read(buf);
} catch (IOException io) {
System.out.print("Excep Msg: "+ io.getMessage() + ", ");
return true;
}
return false;
} },
READ_BUF_OFF { boolean check(FileInputStream r) {
try {
byte buf[] = new byte[2];
int len = 1;
r.read(buf, 0, len);
} catch (IOException io) {
System.out.print("Excep Msg: "+ io.getMessage() + ", ");
return true;
}
return false;
} },
GET_CHANNEL { boolean check(FileInputStream r) {
r.getChannel();
return true;
} },
GET_FD { boolean check(FileInputStream r) {
try {
r.getFD();
return true;
} catch (IOException io) {
System.out.print("Excep Msg: "+ io.getMessage() + ", ");
return false;
}
} },
SKIP { boolean check(FileInputStream r) {
try {
r.skip(1);
} catch (IOException io) {
System.out.print("Excep Msg: "+ io.getMessage() + ", ");
return true;
}
return false;
} },
CLOSE { boolean check(FileInputStream r) {
try {
r.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
}
} };
abstract boolean check(FileInputStream r);
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);
if (testFileInputStream(fis)) {
throw new Exception("Test failed for some of the operation{s}" +
" on FileInputStream, check the messages");
}
}
private static boolean testFileInputStream(FileInputStream r)
throws Exception {
r.close();
boolean failed = false;
boolean result;
System.out.println("Testing File:" + r);
for (OpsAfterClose op : OpsAfterClose.values()) {
result = op.check(r);
if (!result) {
failed = true;
}
System.out.println(op + ":" + result);
}
if (failed) {
System.out.println("Test failed for the failed operation{s}" +
" above for the FileInputStream:" + r);
}
return failed;
}
}
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