-- Write a function to determine the resistance (in ohms) of a given
-- three-part resistor colour code.  The colour code is passed as a
-- list of strings.
--
-- Solution --------------------------------------------------------------------
function decode_resistance(colours)
	-- Your implementation here
end

-- Tests -----------------------------------------------------------------------

local luaunit = require("luaunit.luaunit")

function test_violet_orange_black_is_73_ohms()
	local resistance = decode_resistance({"violet", "orange", "black"})
	luaunit.assertEquals(resistance, 73)
end

function test_brown_green_black_is_15_ohms()
	local resistance = decode_resistance({"brown", "green", "black"})
	luaunit.assertEquals(resistance, 15)
end

function test_green_blue_orange_is_56_kiloohms()
	local resistance = decode_resistance({"green", "blue", "orange"})
	luaunit.assertEquals(resistance, 56000)
end

function test_white_yellow_yellow_is_940_kiloohms()
	local resistance = decode_resistance({"white", "yellow", "yellow"})
	luaunit.assertEquals(resistance, 940000)
end

function test_orange_red_silver_is_320_milliohms()
	local resistance = decode_resistance({"orange", "red", "silver"})
	luaunit.assertEquals(resistance, 0.32)
end

os.exit(luaunit.LuaUnit.run())