1 files changed, 37 insertions, 0 deletions
diff --git a/src/tests/filesys/seq-test.c b/src/tests/filesys/seq-test.c
new file mode 100644
index 0000000..8ce222c
--- /dev/null
+++ b/src/tests/filesys/seq-test.c
@@ -0,0 +1,37 @@
+#include "tests/filesys/seq-test.h"
+#include <random.h>
+#include <syscall.h>
+#include "tests/lib.h"
+
+void 
+seq_test (const char *file_name, void *buf, size_t size, size_t initial_size,
+          size_t (*block_size_func) (void),
+          void (*check_func) (int fd, long ofs)) 
+{
+  size_t ofs;
+  int fd;
+  
+  random_bytes (buf, size);
+  CHECK (create (file_name, initial_size), "create \"%s\"", file_name);
+  CHECK ((fd = open (file_name)) > 1, "open \"%s\"", file_name);
+
+  ofs = 0;
+  msg ("writing \"%s\"", file_name);
+  while (ofs < size) 
+    {
+      size_t block_size = block_size_func ();
+      if (block_size > size - ofs)
+        block_size = size - ofs;
+
+      if (write (fd, buf + ofs, block_size) != (int) block_size)
+        fail ("write %zu bytes at offset %zu in \"%s\" failed",
+              block_size, ofs, file_name);
+
+      ofs += block_size;
+      if (check_func != NULL)
+        check_func (fd, ofs);
+    }
+  msg ("close \"%s\"", file_name);
+  close (fd);
+  check_file (file_name, buf, size);
+}