From 2a0475a7e4ff0890d3290c258db032d051ec13bd Mon Sep 17 00:00:00 2001
From: Kristian Nielsen <knmeister@gmail.com>
Date: Wed, 4 Feb 2009 20:06:11 +0100
Subject: [PATCH] Add testing of pack() and unpack().

---
 test/bitop.cc | 53 +++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 47 insertions(+), 6 deletions(-)

diff --git a/test/bitop.cc b/test/bitop.cc
index 4a72b45..17bd6fc 100644
--- a/test/bitop.cc
+++ b/test/bitop.cc
@@ -28,6 +28,7 @@
 #include "packed.h"
 #include "format_macros.h"
 
+/* Test putbits() and getbits(). */
 void
 test1(beedb_tester *t)
 {
@@ -47,13 +48,13 @@ test1(beedb_tester *t)
 
   uint64_t used_bits= p1.used_bits();
   if (total_bits != used_bits)
-    return t->nok(NOK_IDENT "wrong number of bits used, %" PRIu64 " instead of %" PRIu64,
-                  used_bits, total_bits);
+    return t->nok(NOK_IDENT "wrong number of bits used, %" PRIu64
+                  " instead of %" PRIu64, used_bits, total_bits);
   uint64_t used_words= p1.used_words();
   uint64_t total_words= (total_bits+63)>>6;
   if (total_words != used_words)
-    return t->nok(NOK_IDENT "wrong number of words used, %" PRIu64 " instead of %" PRIu64,
-                  used_words, total_bits);
+    return t->nok(NOK_IDENT "wrong number of words used, %" PRIu64
+                  " instead of %" PRIu64, used_words, total_bits);
 
   pack_ptr p2(buf);
   for (uint64_t i= 1; i <= 64; i++)
@@ -66,7 +67,8 @@ test1(beedb_tester *t)
       return t->nok(NOK_IDENT "getbits() error (i=%" PRIu64 ")", i);
     x= p2.getbits(i);
     if (x != (((uint64_t)1 << (i-1)) - i))
-      return t->nok(NOK_IDENT "getbits() error (i=%" PRIu64 " expected=%" PRIu64 ", got=%" PRIu64 ")", i, x, ((uint64_t)1 << (i-1)) - i);
+      return t->nok(NOK_IDENT "getbits() error (i=%" PRIu64 " expected=%" PRIu64
+                    ", got=%" PRIu64 ")", i, x, ((uint64_t)1 << (i-1)) - i);
     x= p2.getbits(1);
     if (x != 1)
       return t->nok(NOK_IDENT "getbits() error (i=%" PRIu64 ")", i);
@@ -75,11 +77,50 @@ test1(beedb_tester *t)
   t->ok();
 }
 
+/* Test pack() and unpack(). */
+void
+test2(beedb_tester *t)
+{
+  uint64_t buf[2000];
+  pack_overwriteptr p1(buf);
+
+  uint64_t total_bits= 0;
+  for (uint64_t i= 1; i <= 64; i++)
+  {
+    p1.pack5(i);
+    p1.pack5(0);
+    p1.pack5(((uint64_t)1 << (i-1)) - i);
+    p1.pack5(1);
+  }
+  p1.flush();
+
+  pack_ptr p2(buf);
+  for (uint64_t i= 1; i <= 64; i++)
+  {
+    uint64_t x= p2.unpack5();
+    if (x != i)
+      return t->nok(NOK_IDENT "unpack() error (i=%" PRIu64 ")", i);
+    x= p2.unpack5();
+    if (x != 0)
+      return t->nok(NOK_IDENT "unpack() error (i=%" PRIu64 ")", i);
+    x= p2.unpack5();
+    if (x != (((uint64_t)1 << (i-1)) - i))
+      return t->nok(NOK_IDENT "unpack() error (i=%" PRIu64 " expected=%" PRIu64
+                    ", got=%" PRIu64 ")", i, x, ((uint64_t)1 << (i-1)) - i);
+    x= p2.unpack5();
+    if (x != 1)
+      return t->nok(NOK_IDENT "unpack() error (i=%" PRIu64 ")", i);
+  }
+
+  t->ok();
+}
+
 int
 main(int argc, char *argv)
 {
-  beedb_tester t(1);
+  beedb_tester t(2);
   t.run(test1);
+  t.run(test2);
 
   return 0;
 }
-- 
2.11.4.GIT