New testcases for is_file() function

4 files changed, 232 insertions, 0 deletions

diff --git a/ext/standard/tests/file/is_file_variation1.phpt b/ext/standard/tests/file/is_file_variation1.phpt
new file mode 100644
index 0000000000..92bff954c6
--- /dev/null
+++ b/ext/standard/tests/file/is_file_variation1.phpt
@@ -0,0 +1,57 @@
+--TEST--
+Test is_file() function: usage variations - diff. files
+--FILE--
+<?php
+/* Prototype: bool is_file ( string $filename );
+   Description: Tells whether the filename is a regular file
+     Returns TRUE if the filename exists and is a regular file
+*/
+
+/* Testing is_file() with file containing data, truncating its size 
+     and the file created by touch() */
+
+$file_path = dirname(__FILE__);
+
+echo "-- Testing is_file() with file containing data --\n";
+$filename = $file_path."/is_file_variation1.tmp";
+$file_handle = fopen($filename, "w" );
+fwrite( $file_handle, "Hello, world....." ); // exptected true
+fclose($file_handle);
+var_dump( is_file($filename) );
+clearstatcache();
+
+echo "\n-- Testing is_file() after truncating filesize to zero bytes --\n";
+$file_handle = fopen( $file_path."/is_file_variation1.tmp", "r");
+ftruncate($file_handle, 0);
+fclose($file_handle);
+var_dump( is_file($file_path."/is_file_variation1.tmp") ); // expected true
+clearstatcache();
+unlink($file_path."/is_file_variation1.tmp");
+
+echo "\n-- Testing is_file() with an empty file --\n";
+/* created by fopen() */
+fclose( fopen($file_path."/is_file_variation1.tmp", "w") );
+var_dump( is_file($file_path."/is_file_variation1.tmp") );  //expected true
+clearstatcache();
+unlink($file_path."/is_file_variation1.tmp");
+
+/* created by touch() */
+touch($file_path."/is_file_variation1.tmp");
+var_dump( is_file($file_path."/is_file_variation1.tmp") ); // expected true
+clearstatcache();
+unlink($file_path."/is_file_variation1.tmp");
+
+echo "\n*** Done ***";
+?>
+--EXPECTF--
+-- Testing is_file() with file containing data --
+bool(true)
+
+-- Testing is_file() after truncating filesize to zero bytes --
+bool(true)
+
+-- Testing is_file() with an empty file --
+bool(true)
+bool(true)
+
+*** Done ***
diff --git a/ext/standard/tests/file/is_file_variation2.phpt b/ext/standard/tests/file/is_file_variation2.phpt
new file mode 100644
index 0000000000..dbe74da617
--- /dev/null
+++ b/ext/standard/tests/file/is_file_variation2.phpt
@@ -0,0 +1,46 @@
+--TEST--
+Test is_file() function: usage variations - links
+--SKIPIF--
+<?php
+if (substr(PHP_OS, 0, 3) == 'WIN') {
+    die('skip Do not run on Windows');
+}
+--FILE--
+<?php
+/* Prototype: bool is_file ( string $filename );
+   Description: Tells whether the filename is a regular file
+     Returns TRUE if the filename exists and is a regular file
+*/
+
+/* Creating soft and hard links to a file and applying is_file() on links */ 
+
+$file_path = dirname(__FILE__);
+fclose( fopen($file_path."/is_file_variation2.tmp", "w") );
+
+echo "*** Testing is_file() with links ***\n";
+/* With symlink */
+symlink($file_path."/is_file_variation2.tmp", $file_path."/is_file_variation2_symlink.tmp");
+var_dump( is_file($file_path."/is_file_variation2_symlink.tmp") ); //expected true
+clearstatcache();
+
+/* With hardlink */
+link($file_path."/is_file_variation2.tmp", $file_path."/is_file_variation2_link.tmp");
+var_dump( is_file($file_path."/is_file_variation2_link.tmp") );  // expected: true
+clearstatcache();
+
+echo "\n*** Done ***";
+?>
+--CLEAN--
+<?php
+$file_path = dirname(__FILE__);
+unlink($file_path."/is_file_variation2_symlink.tmp");
+unlink($file_path."/is_file_variation2_link.tmp");
+unlink($file_path."/is_file_variation2.tmp");
+?>
+
+--EXPECTF--
+*** Testing is_file() with links ***
+bool(true)
+bool(true)
+
+*** Done ***
diff --git a/ext/standard/tests/file/is_file_variation3.phpt b/ext/standard/tests/file/is_file_variation3.phpt
new file mode 100644
index 0000000000..af7501315e
--- /dev/null
+++ b/ext/standard/tests/file/is_file_variation3.phpt
@@ -0,0 +1,55 @@
+--TEST--
+Test is_file() function: usage variations - invalid filenames
+--FILE--
+<?php
+/* Prototype: bool is_file ( string $filename );
+   Description: Tells whether the filename is a regular file
+     Returns TRUE if the filename exists and is a regular file
+*/
+
+/* Testing is_file() with invalid arguments -int, float, bool, NULL, resource */
+
+$file_path = dirname(__FILE__);
+$file_handle = fopen($file_path."/is_file_variation3.tmp", "w");
+
+echo "*** Testing Invalid file types ***\n";
+$filenames = array(
+  /* Invalid filenames */
+  -2.34555,
+  "",
+  TRUE,
+  FALSE,
+  NULL,
+  $file_handle,
+  
+  /* scalars */
+  1234,
+  0
+);
+   
+/* loop through to test each element the above array */
+foreach( $filenames as $filename ) {
+  var_dump( is_file($filename) );
+  clearstatcache();
+}
+fclose($file_handle);
+
+echo "\n*** Done ***";
+?>
+--CLEAN--
+<?php
+$file_path = dirname(__FILE__);
+unlink($file_path."/is_file_variation3.tmp");
+?>
+--EXPECTF--
+*** Testing Invalid file types ***
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+bool(false)
+
+*** Done ***
diff --git a/ext/standard/tests/file/is_file_variation4.phpt b/ext/standard/tests/file/is_file_variation4.phpt
new file mode 100644
index 0000000000..73884f072a
--- /dev/null
+++ b/ext/standard/tests/file/is_file_variation4.phpt
@@ -0,0 +1,74 @@
+--TEST--
+Test is_file() function: usage variations - diff. path notations(fails on linux, see bug#42027)
+--FILE--
+<?php
+/* Prototype: bool is_file ( string $filename );
+   Description: Tells whether the filename is a regular file
+     Returns TRUE if the filename exists and is a regular file
+*/
+
+/* Passing file names with different notations, using slashes, wild-card chars */
+
+$file_path = dirname(__FILE__);
+
+echo "*** Testing is_file() with different notations of file names ***\n";
+$dir_name = $file_path."/is_file_variation4";
+mkdir($dir_name);
+$file_handle = fopen($dir_name."/is_file_variation4.tmp", "w");
+fclose($file_handle);
+
+$files_arr = array(
+  "/is_file_variation4/is_file_variation4.tmp",
+
+  /* Testing a file trailing slash */
+  "/is_file_variation4/is_file_variation4.tmp/",
+
+  /* Testing file with double slashes */
+  "/is_file_variation4//is_file_variation4.tmp",
+  "//is_file_variation4//is_file_variation4.tmp",
+  "/is_file_variation4/*.tmp",
+  "is_file_variation4/is_file*.tmp", 
+
+  /* Testing Binary safe */
+  "/is_file_variation4/is_file_variation4.tmp".chr(0),
+  "/is_file_variation4/is_file_variation4.tmp\0"
+);
+
+$count = 1;
+/* loop through to test each element in the above array */
+foreach($files_arr as $file) {
+  echo "- Iteration $count -\n";
+  var_dump( is_file( $file_path."/".$file ) );
+  clearstatcache();
+  $count++;
+}
+
+echo "\n*** Done ***";
+?>
+--CLEAN--
+<?php
+$file_path = dirname(__FILE__);
+$dir_name = $file_path."/is_file_variation4";
+unlink($dir_name."/is_file_variation4.tmp");
+rmdir($dir_name);
+?>
+--EXPECTF--
+*** Testing is_file() with different notations of file names ***
+- Iteration 1 -
+bool(true)
+- Iteration 2 -
+bool(true)
+- Iteration 3 -
+bool(true)
+- Iteration 4 -
+bool(true)
+- Iteration 5 -
+bool(true)
+- Iteration 6 -
+bool(true)
+- Iteration 7 -
+bool(true)
+- Iteration 8 -
+bool(true)
+
+*** Done ***