43 lines
1.1 KiB
Elixir
43 lines
1.1 KiB
Elixir
if !System.get_env("EXERCISM_TEST_EXAMPLES") do
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Code.load_file("accumulate.exs", __DIR__)
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end
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ExUnit.start()
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ExUnit.configure(trace: true)
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defmodule AccumulateTest do
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use ExUnit.Case
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test "accumulate empty list" do
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assert Accumulate.accumulate([], fn n -> n * n end) == []
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end
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@tag :pending
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test "accumulate square numbers" do
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assert Accumulate.accumulate([1, 2, 3], fn n -> n * n end) == [1, 4, 9]
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end
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@tag :pending
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test "accumulate upcased strings" do
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fun = fn w -> String.upcase(w) end
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assert Accumulate.accumulate(["hello", "world"], fun) == ["HELLO", "WORLD"]
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end
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@tag :pending
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test "accumulate reversed strings" do
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fun = fn w -> String.reverse(w) end
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words = ~w(the quick brown fox etc)
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expected = ["eht", "kciuq", "nworb", "xof", "cte"]
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assert Accumulate.accumulate(words, fun) == expected
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end
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@tag :pending
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test "nested accumulate" do
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chars = ~w(a b c)
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nums = ~w(1 2 3)
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fun = fn c -> Accumulate.accumulate(nums, &(c <> &1)) end
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expected = [["a1", "a2", "a3"], ["b1", "b2", "b3"], ["c1", "c2", "c3"]]
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assert Accumulate.accumulate(chars, fun) == expected
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end
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end
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