diff --git a/autotest/Bits/Bits.cpp b/autotest/Bits/Bits.cpp
index cdeff97c7..2fd7f2eba 100644
--- a/autotest/Bits/Bits.cpp
+++ b/autotest/Bits/Bits.cpp
@@ -6,19 +6,58 @@ CONSOLE_APP_MAIN
 {
 	StdLogSetup(LOG_COUT|LOG_FILE);
 
-	Bits h;
-	Vector<bool> v;
-	
-	for(int i = 0; i < 100000; i++) {
-		int pos = Random(120000);
-		bool b = Random() & 1;
+	{
+		Bits h;
+		Vector<bool> v;
 		
-		v.At(pos, false) = b;
-		h.Set(pos, b);
+		SeedRandom();
+		
+		for(int i = 0; i < 100000; i++) {
+			int pos = Random(120000);
+			bool b = Random() & 1;
+			
+			v.At(pos, false) = b;
+			h.Set(pos, b);
+		}
+		
+		for(int i = 0; i < v.GetCount(); i++)
+			ASSERT(h.Get(i) == v[i]);
 	}
 	
-	for(int i = 0; i < v.GetCount(); i++)
-		ASSERT(h.Get(i) == v[i]);
+	{
+		Bits r;
+		dword *h = r.CreateRaw(2);
+		*h = 0x4444;
+		
+		ASSERT(r.Get(0) == 0);
+		ASSERT(r.Get(1) == 0);
+		ASSERT(r.Get(2) == 1);
+		ASSERT(r.Get(3) == 0);
+		ASSERT(r.Get(4) == 0);
+		ASSERT(r.Get(5) == 0);
+		ASSERT(r.Get(6) == 1);
+		
+		r.Set(31, 1);
+		ASSERT(*h == 0x80004444);
+		
+		int n;
+		const dword *x = r.Raw(n);
+		
+		DUMP(n);
+		ASSERT(n >= 2);
+		ASSERT(*x == 0x80004444);
+		
+		r.Set(1000, 1);
+		r.Raw(n);
+		DUMP(n);
+		r.Set(2000, 1);
+		r.Raw(n);
+		DUMP(n);
+		r.Set(2000, 0);
+		r.Shrink();
+		ASSERT(*r.Raw(n) == 0x80004444);
+		DUMP(n);
+	}
 	
 	LOG("--------- OK");
 }