491 lines
14 KiB
PHP
491 lines
14 KiB
PHP
--TEST--
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Test fread() function : usage variations - read beyond file size, read/write mode
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--SKIPIF--
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<?php
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if (substr(PHP_OS, 0, 3) == 'WIN') {
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die('skip...Not valid for Windows');
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}
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?>
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--FILE--
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<?php
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// include the file.inc for common functions for test
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include ("file.inc");
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/* Function : function check_read(resource $file_handle, int $read_size, int $expect_size)
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Description : Read data from file of size $read_size and verifies that $expected_size no. of
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bytes are read.
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$file_handle : File Handle
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$read_size : No. of bytes to be read.
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$expect_size : Expected data length
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Returns: returns the data read
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*/
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function check_read($file_handle, $read_size, $expect_size) {
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// print file pointer position before read
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var_dump( ftell($file_handle) );
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var_dump( feof($file_handle) );
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// read the data of size $read_size
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echo "Reading $read_size bytes from file, expecting $expect_size bytes ... ";
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$data_from_file = fread($file_handle, $read_size);
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// check if data read is of expected size
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if ( strlen($data_from_file) == $expect_size)
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echo "OK\n";
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else
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echo "Error reading file, total number of bytes read = ".strlen($data_from_file)."\n";
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// file pointer position after read
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var_dump( ftell($file_handle) );
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// check if file pointer at eof()
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var_dump( feof($file_handle) );
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return $data_from_file;
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}
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echo "*** Testing fread() : usage variations ***\n";
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$file_modes = array("a+","a+b","a+t",
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"w+","w+b","w+t",
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"x+","x+b","x+t");
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$file_content_types = array("numeric","text","text_with_new_line");
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foreach($file_content_types as $file_content_type) {
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echo "\n-- Testing fread() with file having content of type ". $file_content_type ." --\n";
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/* open the file using $files_modes and perform fread() on it */
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foreach($file_modes as $file_mode) {
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if(!strstr($file_mode,"x")){
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/* create files with $file_content_type */
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create_files ( __DIR__, 1, $file_content_type, 0755, 1, "w", "fread_variation", 3);
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}
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$filename = __DIR__."/fread_variation3.tmp"; // this is name of the file created by create_files()
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echo "-- File opened in mode ".$file_mode." --\n";
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$file_handle = fopen($filename, $file_mode);
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if (!$file_handle) {
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echo "Error: failed to fopen() file: $filename!";
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exit();
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}
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if(strstr($file_mode,"w") || strstr($file_mode,"x") ) {
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$data_to_be_written="";
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fill_file($file_handle, $file_content_type, 1024);
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}
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rewind($file_handle);
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// read file by giving size more than its size
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echo "-- Reading beyond filesize, expected : 1024 bytes --\n";
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rewind($file_handle);
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$data_from_file = check_read($file_handle, 1030, ( strstr($file_mode, "+") ? 1024 : 1024) );
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if ( $data_from_file != false)
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var_dump( md5($data_from_file) );
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rewind($file_handle);
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echo "-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --\n";
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// try fread when file pointer at end
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fseek($file_handle, 0, SEEK_END);
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//reading file when file pointer at end
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$data_from_file = check_read($file_handle, 10, 0);
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if ( $data_from_file != false)
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var_dump( md5($data_from_file) );
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// now close the file
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fclose($file_handle);
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// delete the file created
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delete_file($filename); // delete file
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} // end of inner foreach loop
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}// end of outer foreach loop
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echo"Done\n";
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?>
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--EXPECT--
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*** Testing fread() : usage variations ***
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-- Testing fread() with file having content of type numeric --
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-- File opened in mode a+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode a+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode a+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "950b7457d1deb6332f2fc5d42f3129d6"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- Testing fread() with file having content of type text --
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-- File opened in mode a+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode a+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode a+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "e486000c4c8452774f746a27658d87fa"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- Testing fread() with file having content of type text_with_new_line --
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-- File opened in mode a+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode a+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode a+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode w+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+ --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+b --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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-- File opened in mode x+t --
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-- Reading beyond filesize, expected : 1024 bytes --
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int(0)
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bool(false)
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Reading 1030 bytes from file, expecting 1024 bytes ... OK
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int(1024)
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bool(true)
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string(32) "b09c8026a64a88d36d4c2f17983964bb"
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-- Reading beyond filesize when file pointer pointing to EOF, expected : 0 bytes --
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int(1024)
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bool(false)
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Reading 10 bytes from file, expecting 0 bytes ... OK
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int(1024)
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bool(true)
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Done
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