diff --git a/moo/kernel/test-001.moo b/moo/kernel/test-001.moo
index 84847ce..ca04d51 100644
--- a/moo/kernel/test-001.moo
+++ b/moo/kernel/test-001.moo
@@ -181,7 +181,33 @@ extend MyObject
 			[ "%#b" strfmt((-2305843009213693952 * -2305843009213693952 * 2305843009213693952 * 2305843009213693952 * 2305843009213693952) - 1 + 2) = '2r100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001' ],
 
 			## 40 - 44
-			[ "%#x" strfmt((-2305843009213693952 * -2305843009213693952 * 2305843009213693952 * 2305843009213693952 * 2305843009213693952) - 1 + 2) = '16r20000000000000000000000000000000000000000000000000000000000000000000000000001' ]
+			[ "%#x" strfmt((-2305843009213693952 * -2305843009213693952 * 2305843009213693952 * 2305843009213693952 * 2305843009213693952) - 1 + 2) = '16r20000000000000000000000000000000000000000000000000000000000000000000000000001' ],
+			[ (7 div: -3) = -2 ],
+			[ (7 rem: -3) = 1 ],
+			[ (7 mdiv: -3) = -3 ],
+			[ (7 mod: -3) = -2 ],
+
+			## 45-49
+			[ ([ (7 div: 0) = -2 ] on: Exception do: [:ex | ex messageText ]) = 'divide by zero' ],
+			[ ([ (7 rem: 0) = -2 ] on: Exception do: [:ex | ex messageText ]) = 'divide by zero' ],
+			[ ([ (7 mdiv: 0) = -2 ] on: Exception do: [:ex | ex messageText ]) = 'divide by zero' ],
+			[ ([ (7 mod: 0) = -2 ] on: Exception do: [:ex | ex messageText ]) = 'divide by zero' ],
+			[ (270000000000000000000000000000000000000000000000000000000000000000000 div:  50000000000000000000000000000000000000000000000000000000000000000000) = 5 ],
+
+			## 50-54
+			[ (270000000000000000000000000000000000000000000000000000000000000000000 rem:  50000000000000000000000000000000000000000000000000000000000000000000) = 20000000000000000000000000000000000000000000000000000000000000000000 ],
+			[ (270000000000000000000000000000000000000000000000000000000000000000000 mdiv: 50000000000000000000000000000000000000000000000000000000000000000000) = 5],
+			[ (270000000000000000000000000000000000000000000000000000000000000000000 mod:  50000000000000000000000000000000000000000000000000000000000000000000) = 20000000000000000000000000000000000000000000000000000000000000000000 ],
+			[ (0 rem: -50000000000000000000000000000000000000000000000000000000000000000000) = 0 ],
+			[ (0 rem: -50000000000000000000000000000000000000000000000000000000000000000000) = 0 ],
+
+			## 55-59
+			[ (0 rem: -50000000000000000000000000000000000000000000000000000000000000000000) = 0 ],
+			[ (0 rem: -50000000000000000000000000000000000000000000000000000000000000000000) = 0 ],
+			[ (16r2dd01fc06c265c8163ac729b49d890939826ce3dd div: 16r3b9aca00) = 4184734490355220618401938634485367707982 ],
+			[ (16r2dd01fc06c265c8163ac729b49d890939826ce3dd rem: 16r3b9aca00) = 394876893 ],
+			[ (16rFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF bitAnd: 16r1111111111111111111111111111111111111111) = 16r1111111111111111111111111111111111111111 ]
+
 		).
 
 		limit := tc size.