Adding modpow test.

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/test3.lua b/tests/test3.lua
index aeea660..f52099b 100644
--- a/tests/test3.lua
+++ b/tests/test3.lua
@@ -7,4 +7,10 @@ function test3()
     if z == 6912 then error "bigint2" end
     -- this is the proper comparison.
     if z ~= BigInt.new(6912) then error "bigint3" end
+
+    x = BigInt.new "2570928358736459287364501827645832746923875623845"
+    y = BigInt.new "52934875203984750192837512983750192582348756"
+    local m = BigInt.new "6971908475092834619032845610238976458374561729345017823461297384"
+    z = x:modpow(y, m)
+    if tostring(z) ~= "2205750725547192694097770347478670564947020421824213327486286017" then error "bigint4" end
 end