Added some more tests.

dlls/kernel/tests/file.c

 /*
- * Unit tests for file functions
+ * Unit tests for file functions in Wine
  *
- * Copyright 2002 Jakob Eriksson
+ * Copyright (c) 2002 Jakob Eriksson
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
@@ -16,12 +16,14 @@
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
  */
 
 #include "winbase.h"
 #include "winerror.h"
 #include "wine/test.h"
 
+
 #include <stdlib.h>
 #include <time.h>
 
@@ -39,12 +41,13 @@ LPCSTR sillytext =
 "1234 43 4kljf lf &%%%&&&&&& 34 4 34   3############# 33 3 3 3 # 3## 3"
 "sdlkfjasdlkfj a dslkj adsklf  \n  \nasdklf askldfa sdlkf \nsadklf asdklf asdf ";
 
+
 static void test__hread( void )
 {
     HFILE filehandle;
     char buffer[10000];
     long bytes_read;
-    UINT bytes_wanted;
+    long bytes_wanted;
     UINT i;
 
     filehandle = _lcreat( filename, 0 );
@@ -77,6 +80,7 @@ static void test__hread( void )
     ok( DeleteFileA( filename ) != 0, "DeleteFile complains." );
 }
 
+
 static void test__hwrite( void )
 {
     HFILE filehandle;
@@ -155,6 +159,7 @@ static void test__hwrite( void )
     ok( DeleteFileA( filename ) != 0, "DeleteFile complains." );
 }
 
+
 static void test__lclose( void )
 {
     HFILE filehandle;
@@ -198,9 +203,7 @@ static void test__lcreat( void )
     filehandle = _lcreat( filename, 1 );
     ok( HFILE_ERROR != filehandle, "couldn't create file!?" );
 
-#if 0  /* FIXME: this fails on NT too */
-    ok( HFILE_ERROR == _hwrite( filehandle, sillytext, strlen( sillytext ) ), "_hwrite shouldn't succeed writing." );
-#endif
+    ok( HFILE_ERROR != _hwrite( filehandle, sillytext, strlen( sillytext ) ), "_hwrite shouldn't be able to write never the less." );
 
     ok( HFILE_ERROR != _lclose(filehandle), "_lclose complains." );
 
@@ -227,7 +230,6 @@ static void test__lcreat( void )
 
     ok( DeleteFileA( filename ) != 0, "DeleteFileA complains." );
     
-
     filehandle = _lcreat( filename, 4 );
     ok( HFILE_ERROR != filehandle, "couldn't create file. Wrong permissions on directory?" );
 
@@ -273,16 +275,14 @@ void test__llseek( void )
     bytes_read = _hread( filehandle, buffer, 1);
     ok( 1 == bytes_read, "file read size error." );
     ok( buffer[0] == sillytext[0], "_llseek error. It got lost seeking..." );
-
-#if 0  /* FIXME: this fails on NT too */
-    ok( HFILE_ERROR == _llseek( filehandle, 1000000, FILE_END ), "should get HFILE_ERROR for trying to seek past end of file" );
-#endif
-
+    ok( HFILE_ERROR != _llseek( filehandle, 1000000, FILE_END ), "should be able to seek past file. Poor, poor Windows programmers." );
     ok( HFILE_ERROR != _lclose(filehandle), "_lclose complains." );
+
     ok( DeleteFileA( filename ) != 0, "DeleteFileA complains." );
 }
 
-void test__llopen( void )
+
+static void test__llopen( void )
 {
     HFILE filehandle;
     UINT bytes_read;
@@ -311,9 +311,129 @@ void test__llopen( void )
     ok( HFILE_ERROR != _lclose(filehandle), "_lclose complains." );
 
     ok( DeleteFileA( filename ) != 0, "DeleteFileA complains." );
-    /* TODO - add tests for the SHARE modes  -  use two processes to pull this off */
+    /* TODO - add tests for the SHARE modes  -  use two processes to pull this one off */
+}
+
+
+static void test__lread( void )
+{
+    HFILE filehandle;
+    char buffer[10000];
+    long bytes_read;
+    UINT bytes_wanted;
+    UINT i;
+
+    filehandle = _lcreat( filename, 0 );
+    ok( HFILE_ERROR != filehandle, "couldn't create file. Wrong permissions on directory?" );
+
+    ok( HFILE_ERROR != _hwrite( filehandle, sillytext, strlen( sillytext ) ), "_hwrite complains." );
+
+    ok( HFILE_ERROR != _lclose(filehandle), "_lclose complains." );
+
+    filehandle = _lopen( filename, OF_READ );
+
+    ok( HFILE_ERROR != filehandle, "couldn't open file again?");
+    
+    bytes_read = _lread( filehandle, buffer, 2 * strlen( sillytext ) );
+    
+    ok( strlen( sillytext ) == bytes_read, "file read size error." );
+
+    for (bytes_wanted = 0; bytes_wanted < strlen( sillytext ); bytes_wanted++)
+    {
+        ok( 0 == _llseek( filehandle, 0, FILE_BEGIN ), "_llseek complains." );
+        ok( _lread( filehandle, buffer, bytes_wanted ) == bytes_wanted, "erratic _hread return value." );
+        for (i = 0; i < bytes_wanted; i++)
+        {
+            ok( buffer[i] == sillytext[i], "that's not what's written." );
+        }
+    }
+
+    ok( HFILE_ERROR != _lclose( filehandle ), "_lclose complains." );
+
+    ok( DeleteFileA( filename ) != 0, "DeleteFile complains." );
 }
 
+
+static void test__lwrite( void )
+{
+    HFILE filehandle;
+    char buffer[10000];
+    long bytes_read;
+    UINT bytes_written;
+    UINT blocks;
+    UINT i;
+    char *contents;
+    HLOCAL memory_object;
+    char checksum[1];
+
+    filehandle = _lcreat( filename, 0 );
+    ok( HFILE_ERROR != filehandle, "couldn't create file. Wrong permissions on directory?" );
+
+    ok( HFILE_ERROR != _lwrite( filehandle, "", 0 ), "_hwrite complains." );
+
+    ok( HFILE_ERROR != _lclose(filehandle), "_lclose complains." );
+
+    filehandle = _lopen( filename, OF_READ );
+    
+    bytes_read = _hread( filehandle, buffer, 1);
+
+    ok( 0 == bytes_read, "file read size error." );
+
+    ok( HFILE_ERROR != _lclose(filehandle), "_lclose complains." );
+
+    filehandle = _lopen( filename, OF_READWRITE );
+
+    bytes_written = 0;
+    checksum[0] = '\0';
+    srand( (unsigned)time( NULL ) );
+    for (blocks = 0; blocks < 100; blocks++)
+    {
+        for (i = 0; i < sizeof( buffer ); i++)
+        {
+            buffer[i] = rand(  );
+            checksum[0] = checksum[0] + buffer[i];
+        }
+        ok( HFILE_ERROR != _lwrite( filehandle, buffer, sizeof( buffer ) ), "_hwrite complains." );
+        bytes_written = bytes_written + sizeof( buffer );
+    }
+
+    ok( HFILE_ERROR != _lwrite( filehandle, checksum, 1 ), "_hwrite complains." );
+    bytes_written++;
+
+    ok( HFILE_ERROR != _lclose( filehandle ), "_lclose complains." );
+
+    memory_object = LocalAlloc( LPTR, bytes_written );
+
+    ok( 0 != memory_object, "LocalAlloc fails. (Could be out of memory.)" );
+
+    contents = LocalLock( memory_object );
+
+    filehandle = _lopen( filename, OF_READ );
+
+    contents = LocalLock( memory_object );
+
+    ok( NULL != contents, "LocalLock whines." );
+
+    ok( bytes_written == _hread( filehandle, contents, bytes_written), "read length differ from write length." );
+
+    checksum[0] = '\0';
+    i = 0;
+    do
+    {
+        checksum[0] = checksum[0] + contents[i];
+        i++;
+    }
+    while (i < bytes_written - 1);
+
+    ok( checksum[0] == contents[i], "stored checksum differ from computed checksum." );
+    return;
+    
+    ok( HFILE_ERROR != _lclose( filehandle ), "_lclose complains." );
+
+    ok( DeleteFileA( filename ) != 0, "DeleteFile complains." );
+}
+
+
 START_TEST(file)
 {
     test__hread(  );
@@ -322,4 +442,6 @@ START_TEST(file)
     test__lcreat(  );
     test__llseek(  );
     test__llopen(  );
+    test__lread(  );
+    test__lwrite(  );
 }