--TEST--
Test fwrite() function : usage variations - r, rb & rt modes
--FILE--
<?php
echo "*** Testing fwrite() various  operations ***\n";

// include the file.inc for Function: function delete_file($filename)
include ("file.inc");

/*
 Test fwrite with file opened in mode : r,rb,rt
 File having content of type numeric, text,text_with_new_line & alphanumeric
*/

$file_modes = array("r","rb","rt");
$file_content_types = array("numeric","text","text_with_new_line","alphanumeric");

foreach($file_content_types as $file_content_type) {
  echo "\n-- Testing fwrite() with file having content of type ". $file_content_type ." --\n";

  /* open the file using $files_modes and perform fwrite() on it */
  foreach($file_modes as $file_mode) {
    echo "-- Opening file in $file_mode --\n";

    // create the temp file with content of type $file_content_type
    $filename = __DIR__."/fwrite_variation1.tmp"; // this is name of the file
    create_files ( __DIR__, 1, $file_content_type, 0755, 1, "w", "fwrite_variation");

    $file_handle = fopen($filename, $file_mode);
    if(!$file_handle) {
      echo "Error: failed to fopen() file: $filename!";
      exit();
    }

    $data_to_be_written="";
    fill_buffer($data_to_be_written,$file_content_type,1024);  //get the data of size 1024

    /*  Write the data into the file, verify it by checking the file pointer position, eof position,
        filesize & by displaying the content */

    var_dump( ftell($file_handle) );  // expected: 0
    var_dump( fwrite($file_handle, $data_to_be_written ));
    var_dump( ftell($file_handle) );  // expected: 0
    var_dump( feof($file_handle) );  // expected: false

    // move the file pointer to end of the file and try fwrite()
    fseek($file_handle, SEEK_END, 0);
    var_dump( ftell($file_handle) );  // expecting 1024
    var_dump( fwrite($file_handle, $data_to_be_written) ); // fwrite to fail
    var_dump( ftell($file_handle) );  //check that file pointer points at eof, expected: 1024
    var_dump( feof($file_handle) );  // ensure that  feof() points to eof, expected: true

    // ensure that file content/size didn't change.
    var_dump( fclose($file_handle) );
    clearstatcache();//clears file status cache
    var_dump( filesize($filename) );  // expected: 1024
    var_dump(md5(file_get_contents($filename))); // hash the output
    delete_file($filename); // delete file with name fwrite_variation1.tmp
  } // end of inner foreach loop
} // end of outer foreach loop

echo "Done\n";
?>
--EXPECTF--
*** Testing fwrite() various  operations ***

-- Testing fwrite() with file having content of type numeric --
-- Opening file in r --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "950b7457d1deb6332f2fc5d42f3129d6"
-- Opening file in rb --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "950b7457d1deb6332f2fc5d42f3129d6"
-- Opening file in rt --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "950b7457d1deb6332f2fc5d42f3129d6"

-- Testing fwrite() with file having content of type text --
-- Opening file in r --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "e486000c4c8452774f746a27658d87fa"
-- Opening file in rb --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "e486000c4c8452774f746a27658d87fa"
-- Opening file in rt --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "e486000c4c8452774f746a27658d87fa"

-- Testing fwrite() with file having content of type text_with_new_line --
-- Opening file in r --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "b09c8026a64a88d36d4c2f17983964bb"
-- Opening file in rb --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "b09c8026a64a88d36d4c2f17983964bb"
-- Opening file in rt --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "b09c8026a64a88d36d4c2f17983964bb"

-- Testing fwrite() with file having content of type alphanumeric --
-- Opening file in r --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "3fabd48d8eaa65c14e0d93d6880c560c"
-- Opening file in rb --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "3fabd48d8eaa65c14e0d93d6880c560c"
-- Opening file in rt --
int(0)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(0)
bool(false)
int(2)

Notice: fwrite(): Write of 1024 bytes failed with errno=9 Bad file descriptor in %s on line %d
bool(false)
int(2)
bool(false)
bool(true)
int(1024)
string(32) "3fabd48d8eaa65c14e0d93d6880c560c"
Done
