113 lines
2.3 KiB
Elixir
113 lines
2.3 KiB
Elixir
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defmodule LucasNumbersTest do
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use ExUnit.Case
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@tag task_id: 1
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test "generates a sequence of length 1" do
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assert LucasNumbers.generate(1) == [2]
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end
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@tag task_id: 1
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test "generates a sequence of length 2" do
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assert LucasNumbers.generate(2) == [2, 1]
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end
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@tag task_id: 2
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test "generates a sequence of length 3" do
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assert LucasNumbers.generate(3) == [2, 1, 3]
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end
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@tag task_id: 2
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test "generates a sequence of length 4" do
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assert LucasNumbers.generate(4) == [2, 1, 3, 4]
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end
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@tag task_id: 2
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test "generates a sequence of length 5" do
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sequence = [2, 1, 3, 4, 7]
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assert LucasNumbers.generate(5) == sequence
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end
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@tag task_id: 2
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test "generates a sequence of length 6" do
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sequence = [2, 1, 3, 4, 7, 11]
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assert LucasNumbers.generate(6) == sequence
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end
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@tag task_id: 2
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test "generates a sequence of length 7" do
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sequence = [2, 1, 3, 4, 7, 11, 18]
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assert LucasNumbers.generate(7) == sequence
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end
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@tag task_id: 2
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test "generates a sequence of length 8" do
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sequence = [2, 1, 3, 4, 7, 11, 18, 29]
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assert LucasNumbers.generate(8) == sequence
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end
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@tag task_id: 2
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test "generates a sequence of length 9" do
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sequence = [2, 1, 3, 4, 7, 11, 18, 29, 47]
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assert LucasNumbers.generate(9) == sequence
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end
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@tag task_id: 2
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test "generates a sequence of length 10" do
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sequence = [2, 1, 3, 4, 7, 11, 18, 29, 47, 76]
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assert LucasNumbers.generate(10) == sequence
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end
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@tag task_id: 2
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test "generates a sequence of length 25" do
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sequence = [
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2,
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1,
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3,
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4,
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7,
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11,
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18,
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29,
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47,
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76,
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123,
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199,
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322,
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521,
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843,
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1364,
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2207,
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3571,
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5778,
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9349,
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15127,
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24476,
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39603,
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64079,
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103_682
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]
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assert LucasNumbers.generate(25) == sequence
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end
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@tag task_id: 3
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test "catch incorrect non-integer arguments" do
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assert_raise ArgumentError, "count must be specified as an integer >= 1", fn ->
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LucasNumbers.generate("Hello world!")
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end
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end
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@tag task_id: 3
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test "catch incorrect integer arguments" do
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assert_raise ArgumentError, "count must be specified as an integer >= 1", fn ->
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LucasNumbers.generate(-1)
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end
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end
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end
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