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Contents
if !System.get_env("EXERCISM_TEST_EXAMPLES") do
Code.load_file("pascals_triangle.exs", __DIR__)
end
ExUnit.start()
ExUnit.configure(exclude: :pending, trace: true)
defmodule PascalsTriangleTest do
use ExUnit.Case
# @tag pending
test "one row" do
assert PascalsTriangle.rows(1) == [[1]]
end
@tag :pending
test "two rows" do
assert PascalsTriangle.rows(2) == [[1], [1, 1]]
end
@tag :pending
test "three rows" do
assert PascalsTriangle.rows(3) == [[1], [1, 1], [1, 2, 1]]
end
@tag :pending
test "fourth row" do
assert List.last(PascalsTriangle.rows(4)) == [1, 3, 3, 1]
end
@tag :pending
test "fifth row" do
assert List.last(PascalsTriangle.rows(5)) == [1, 4, 6, 4, 1]
end
@tag :pending
test "twentieth row" do
expected = [
1,
19,
171,
969,
3876,
11_628,
27_132,
50_388,
75_582,
92_378,
92_378,
75_582,
50_388,
27_132,
11_628,
3876,
969,
171,
19,
1
]
assert List.last(PascalsTriangle.rows(20)) == expected
end
end
Version data entries
69 entries across 69 versions & 1 rubygems