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Contents
if !System.get_env("EXERCISM_TEST_EXAMPLES") do
Code.load_file("luhn.exs", __DIR__)
end
ExUnit.start()
ExUnit.configure(exclude: :pending, trace: true)
defmodule LuhnTest do
use ExUnit.Case
test "single digit strings can not be valid" do
refute Luhn.valid?("1")
end
@tag :pending
test "A single zero is invalid" do
refute Luhn.valid?("0")
end
@tag :pending
test "a simple valid SIN that remains valid if reversed" do
assert Luhn.valid?("059")
end
@tag :pending
test "a simple valid SIN that becomes invalid if reversed" do
assert Luhn.valid?("59")
end
@tag :pending
test "a valid Canadian SIN" do
assert Luhn.valid?("055 444 285")
end
@tag :pending
test "invalid Canadian SIN" do
refute Luhn.valid?("055 444 286")
end
@tag :pending
test "invalid credit card" do
refute Luhn.valid?("8273 1232 7352 0569")
end
@tag :pending
test "valid strings with a non-digit included become invalid" do
refute Luhn.valid?("055a 444 285")
end
@tag :pending
test "valid strings with punctuation included become invalid" do
refute Luhn.valid?("055-444-285")
end
@tag :pending
test "valid strings with symbols included become invalid" do
refute Luhn.valid?("055£ 444$ 285")
end
@tag :pending
test "single zero with space is invalid" do
refute Luhn.valid?(" 0")
end
@tag :pending
test "more than a single zero is valid" do
assert Luhn.valid?("0000 0")
end
@tag :pending
test "input digit 9 is correctly converted to output digit 9" do
assert Luhn.valid?("091")
end
end
Version data entries
69 entries across 69 versions & 1 rubygems