test_remove_value = function()
	local h = {1,2,3}
	table.remove_value(h, 1)
	check_eq(h, {2,3}, "a")

	local h = {1,2,3}
	table.remove_value(h, 2)
	check_eq(h, {1,3}, "b")

	local h = {1,2,3}
	table.remove_value(h, 3)
	check_eq(h, {1,2}, "b")

	local h = {1,2,3}
	table.remove_value(h, 4)
	check_eq(h, {1,2,3}, "b")
end