diff --git a/maximum.lua b/maximum.lua
new file mode 100644
index 0000000..cf02855
--- /dev/null
+++ b/maximum.lua
@@ -0,0 +1,26 @@
+-- Solution --------------------------------------------------------------------
+function maximum(list)
+	-- Your implementation here
+end
+
+-- Tests -----------------------------------------------------------------------
+
+local luaunit = require("luaunit.luaunit")
+
+function test_maximum_of_1_8_3_and_5_is_8()
+	luaunit.assertEquals(maximum({1, 8, 3, 5}), 8)
+end
+
+function test_maximum_of_123_321_231_and_213_is_321()
+	luaunit.assertEquals(maximum({123, 321, 231, 213}), 321)
+end
+
+function test_maximum_of_6_2_1_minus_5_and_minus_6_is_6()
+	luaunit.assertEquals(maximum({6, 2, 1, -5, -6}), 6)
+end
+
+function test_maximum_of_minus_4_minus_10_minus_8_and_minus_2_is_minus_2()
+	luaunit.assertEquals(maximum({-4, -10, -8, -2}), -2)
+end
+
+os.exit(luaunit.LuaUnit.run())