wininet/tests: Test for handling of blank headers in HttpAddRequestHeaders.

dlls/wininet/tests/http.c

@@ -1274,6 +1274,17 @@ static void HttpHeaders_test(void)
     strcpy(buffer,"Warning");
     ok(HttpQueryInfo(hRequest,HTTP_QUERY_CUSTOM|HTTP_QUERY_FLAG_REQUEST_HEADERS, buffer,&len,&index)==0,"Third Header Should Not Exist\n");
 
+    /* Ensure that blank headers are ignored and don't cause a failure */
+    todo_wine{
+    ok(HttpAddRequestHeaders(hRequest,"\r\nBlankTest:value\r\n\r\n",-1, HTTP_ADDREQ_FLAG_ADD_IF_NEW), "Failed to add header with blank entries in list\n");
+
+    index = 0;
+    len = sizeof(buffer);
+    strcpy(buffer,"BlankTest");
+    ok(HttpQueryInfo(hRequest,HTTP_QUERY_CUSTOM|HTTP_QUERY_FLAG_REQUEST_HEADERS, buffer,&len,&index),"Unable to query header\n");
+    ok(index == 1, "Index was not incremented\n");
+    ok(strcmp(buffer,"value")==0, "incorrect string was returned(%s)\n",buffer);
+    }
 
     ok(InternetCloseHandle(hRequest), "Close request handle failed\n");
 done: