Create a test for 1308. Addresses #1308.

git-svn-id: file:///svn/toku/tokudb.1032b@8276 c7de825b-a66e-492c-adef-691d508d4ae1

newbrt/tests/test1308a.c

+// Test the first case for the bug in #1308 (brt-serialize.c:33 does the cast wrong)
+
+#include <assert.h>
+#include <string.h>
+
+#include "../brt.h" 
+
+#define FNAME "test1308a.data"
+
+#define BUFSIZE (16<<20)
+
+int
+main (int argc __attribute__((__unused__)), char *argv[] __attribute__((__unused__)))
+{
+    printf("hello\n");
+    unlink(FNAME);
+    
+    int fd;
+    {
+
+	static u_int64_t buf [BUFSIZE]; // make this static because it's too big to fit on the stack.
+
+	fd = open(FNAME, O_CREAT+O_RDWR+O_BINARY, 0777);
+	assert(fd>=0);
+	memset(buf, 0, sizeof(buf));
+	u_int64_t i;
+	for (i=0; i<(1LL<<32); i+=BUFSIZE) {
+	    int r = write(fd, buf, BUFSIZE);
+	    assert(r==BUFSIZE);
+	}
+    }
+    int64_t file_size;
+    {
+        int r = toku_os_get_file_size(fd, &file_size);
+        assert(r==0);
+    }
+    maybe_preallocate_in_file(fd, 1000);
+    int64_t file_size2;
+    {
+        int r = toku_os_get_file_size(fd, &file_size2);
+        assert(r==0);
+    }
+    assert(file_size==file_size2);
+    close(fd);
+
+    unlink(FNAME);
+    return 0;
+}