diff packages/fs/ram/current/tests/ramfs3.c @ 2358:d3979e2f8d9e

* test/ramfs3 (new): Test for lseek bug found in fileio. * cdl/ramfs.cdl: Build new test.
author asl
date Sat, 27 Jan 2007 14:04:18 +0000
parents
children 74dbf4c3f2e1
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new file mode 100644
--- /dev/null
+++ b/packages/fs/ram/current/tests/ramfs3.c
@@ -0,0 +1,185 @@
+//==========================================================================
+//
+//      ramfs3.c
+//
+//      Test fileio system, especially lseek calls.
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2004 eCosCentric Limited
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):           nickg, asl, Paluch Sebastian
+// Contributors:        nickg
+// Date:                2006-10-05
+// Purpose:             Test fileio system
+// Description:         This test uses the testfs to check out the initialization
+//                      and basic operation of the fileio system
+//                      
+//                      
+//                      
+//                      
+//                      
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+
+#include <cyg/fileio/fileio.h>
+
+#include <cyg/infra/testcase.h>
+#include <cyg/infra/diag.h>            // HAL polled output
+//==========================================================================
+
+#define SHOW_RESULT( _fn, _res ) \
+diag_printf("FAIL: " #_fn "() returned %ld %s\n", \
+           (unsigned long)_res, _res<0?strerror(errno):"");
+
+//==========================================================================
+
+cyg_uint8 buf[256];
+cyg_uint8 buf1[256];
+
+//==========================================================================
+// main
+
+int main( int argc, char **argv )
+{
+    int err;
+    FILE *stream;
+    long pos;
+    unsigned int i;
+    char header[3];
+
+    CYG_TEST_INIT();
+
+    // --------------------------------------------------------------
+
+    CYG_TEST_INFO("mount /");    
+    err = mount( "", "/", "ramfs" );
+
+    if( err < 0 ) SHOW_RESULT( mount, err );    
+    
+    CYG_TEST_INFO("creating /fseek");
+    stream = fopen("/fseek","w+");
+    if (!stream) {
+      SHOW_RESULT( fopen, NULL);
+      CYG_TEST_FAIL_FINISH("done");\
+    }
+
+    for (i = 0; i < sizeof(buf); i++) {
+      buf[i] = i % 256;
+    }
+    
+    CYG_TEST_INFO("writing test pattern");    
+    err=fwrite(buf,sizeof(buf), 1, stream);
+    if ( err < 0 ) SHOW_RESULT( fwrite, err );
+    
+    pos = ftell(stream);
+    if (pos < 0) SHOW_RESULT( ftell, pos );
+    if (pos != sizeof(buf))
+      diag_printf("<FAIL>: ftell is not telling the truth.");
+    
+    CYG_TEST_INFO("fseek()ing to 85");
+    err = fseek(stream, 85, SEEK_SET);
+    if ( err < 0 ) SHOW_RESULT( fseek, err );
+
+    pos = ftell(stream);
+    if (pos < 0) SHOW_RESULT( ftell, pos );
+    if (pos != 85) CYG_TEST_FAIL("ftell is not telling the truth");
+
+    err = fread(header,3,1,stream);
+    if ( err < 0 ) SHOW_RESULT( fwrite, err );
+    if ((header[0] != 85) ||
+        (header[1] != 86) ||
+        (header[2] != 87))
+      CYG_TEST_FAIL("Read returned false data");
+    
+    pos = ftell(stream);
+    if (pos < 0) SHOW_RESULT( ftell, pos );
+    if (pos != 88)  CYG_TEST_FAIL("ftell is not telling the truth");
+
+    for (i = 88; i < 161; i++) {
+      buf[i] = 0x42;
+    }
+    
+    CYG_TEST_INFO("writing");
+    err = fwrite(buf+88, 73, 1, stream);
+    if ( err < 0 ) SHOW_RESULT( fwrite, err );
+
+    pos = ftell(stream);
+    if (pos < 0) SHOW_RESULT( ftell, pos );
+    if (pos != 161)  CYG_TEST_FAIL("ftell is not telling the truth");
+
+    CYG_TEST_INFO("closing file");
+    err = fclose(stream);
+    if (err != 0) SHOW_RESULT( fclose, err );
+
+    CYG_TEST_INFO("open file /fseek");
+    stream = fopen("/fseek", "r+");
+    if (!stream) {
+      SHOW_RESULT( fopen, NULL);
+      CYG_TEST_FAIL_FINISH("done");\
+    }
+
+    CYG_TEST_INFO("Seeking to beginning of file");
+    err = fseek(stream, 0, SEEK_SET);
+    if ( err < 0 ) SHOW_RESULT( fseek, err );
+
+    CYG_TEST_INFO("Reading buf1");
+    err = fread(buf1,sizeof(buf1),1, stream);
+    if (err != 1) SHOW_RESULT( fread, err );
+
+    CYG_TEST_INFO("Comparing contents");
+    if (memcmp(buf, buf1, sizeof(buf1))) 
+      CYG_TEST_FAIL("File contents inconsistent");
+
+    CYG_TEST_INFO("closing file");
+    err = fclose(stream);
+    if (err != 0) SHOW_RESULT( fclose, err );
+    
+    CYG_TEST_INFO("umount /");    
+    err = umount( "/" );
+    if( err < 0 ) SHOW_RESULT( umount, err );    
+    
+    CYG_TEST_PASS_FINISH("ramfs3");
+}