Adding testcase from bug 207846

xpcom/tests/Makefile.in

@@ -75,6 +75,7 @@ CPPSRCS		= \
 		TestAutoPtr.cpp \
 		TestMinStringAPI.cpp \
 		TestStrings.cpp \
+		TestStorageStream.cpp \
 		$(NULL)
 
 #CPPSRCS		+= TimerTest.cpp

xpcom/tests/TestStorageStream.cpp

@@ -0,0 +1,140 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla.
+ *
+ * The Initial Developer of the Original Code is IBM Corporation.
+ * Portions created by IBM Corporation are Copyright (C) 2004
+ * IBM Corporation. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Darin Fisher <darin@meer.net>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsIStorageStream.h"
+#include "nsIInputStream.h"
+#include "nsIOutputStream.h"
+#include "nsCOMPtr.h"
+
+int main()
+{
+  const char kData[4096] = {0};
+
+  nsresult rv;
+  nsCOMPtr<nsIStorageStream> stor;
+
+  rv = NS_NewStorageStream(4096, PR_UINT32_MAX, getter_AddRefs(stor));
+  if (NS_FAILED(rv))
+    return -1;
+
+  nsCOMPtr<nsIOutputStream> out;
+  rv = stor->GetOutputStream(0, getter_AddRefs(out));
+  if (NS_FAILED(rv))
+    return -1;
+
+  PRUint32 n;
+
+  rv = out->Write(kData, sizeof(kData), &n);
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Write(kData, sizeof(kData), &n);
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Close();
+  if (NS_FAILED(rv))
+    return -1;
+
+  out = nsnull;
+  
+  nsCOMPtr<nsIInputStream> in;
+  rv = stor->NewInputStream(0, getter_AddRefs(in));
+  if (NS_FAILED(rv))
+    return -1;
+
+  char buf[4096];
+
+  // consume contents of input stream
+  do {
+    rv = in->Read(buf, sizeof(buf), &n);
+    if (NS_FAILED(rv))
+      return -1;
+  } while (n != 0);
+
+  rv = in->Close();
+  if (NS_FAILED(rv))
+    return -1;
+  in = nsnull;
+
+  // now, write 3 more full 4k segments + 11 bytes, starting at 8192
+  // total written equals 20491 bytes
+
+  rv = stor->GetOutputStream(8192, getter_AddRefs(out));
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Write(kData, sizeof(kData), &n);
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Write(kData, sizeof(kData), &n);
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Write(kData, sizeof(kData), &n);
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Write(kData, 11, &n);
+  if (NS_FAILED(rv))
+    return -1;
+
+  rv = out->Close();
+  if (NS_FAILED(rv))
+    return -1;
+
+  out = nsnull;
+
+  // now, read all
+  rv = stor->NewInputStream(0, getter_AddRefs(in));
+  if (NS_FAILED(rv))
+    return -1;
+
+  // consume contents of input stream
+  do {
+    rv = in->Read(buf, sizeof(buf), &n);
+    if (NS_FAILED(rv))
+      return -1;
+  } while (n != 0);
+
+  rv = in->Close();
+  if (NS_FAILED(rv))
+    return -1;
+  in = nsnull;
+
+  return 0;
+}