82 lines
2.0 KiB
Elixir
82 lines
2.0 KiB
Elixir
defmodule SayTest do
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use ExUnit.Case
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test "zero" do
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assert Say.in_english(0) == {:ok, "zero"}
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end
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test "one" do
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assert Say.in_english(1) == {:ok, "one"}
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end
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test "fourteen" do
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assert Say.in_english(14) == {:ok, "fourteen"}
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end
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test "twenty" do
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assert Say.in_english(20) == {:ok, "twenty"}
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end
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test "twenty-two" do
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assert Say.in_english(22) == {:ok, "twenty-two"}
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end
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test "thirty" do
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assert Say.in_english(30) == {:ok, "thirty"}
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end
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test "ninety-nine" do
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assert Say.in_english(99) == {:ok, "ninety-nine"}
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end
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test "one hundred" do
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assert Say.in_english(100) == {:ok, "one hundred"}
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end
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test "one hundred twenty-three" do
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assert Say.in_english(123) == {:ok, "one hundred twenty-three"}
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end
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test "two hundred" do
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assert Say.in_english(200) == {:ok, "two hundred"}
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end
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test "nine hundred ninety-nine" do
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assert Say.in_english(999) == {:ok, "nine hundred ninety-nine"}
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end
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test "one thousand" do
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assert Say.in_english(1_000) == {:ok, "one thousand"}
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end
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test "one thousand two hundred thirty-four" do
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assert Say.in_english(1_234) == {:ok, "one thousand two hundred thirty-four"}
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end
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test "one million" do
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assert Say.in_english(1_000_000) == {:ok, "one million"}
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end
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test "one million two thousand three hundred forty-five" do
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assert Say.in_english(1_002_345) == {:ok, "one million two thousand three hundred forty-five"}
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end
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test "one billion" do
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assert Say.in_english(1_000_000_000) == {:ok, "one billion"}
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end
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test "a big number" do
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assert Say.in_english(987_654_321_123) ==
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{:ok,
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"nine hundred eighty-seven billion six hundred fifty-four million three hundred twenty-one thousand one hundred twenty-three"}
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end
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test "numbers below zero are out of range" do
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assert Say.in_english(-1) == {:error, "number is out of range"}
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end
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test "numbers above 999,999,999,999 are out of range" do
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assert Say.in_english(1_000_000_000_000) == {:error, "number is out of range"}
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end
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end
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