etl

elixir/etl/test/etl_test.exs

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+defmodule ETLTest do
+  use ExUnit.Case
+
+  test "single letter" do
+    old = %{1 => ["A"]}
+    expected = %{"a" => 1}
+
+    assert ETL.transform(old) == expected
+  end
+
+  test "single score with multiple letters" do
+    old = %{1 => ~W(A E I O U)}
+    expected = %{"a" => 1, "e" => 1, "i" => 1, "o" => 1, "u" => 1}
+
+    assert ETL.transform(old) == expected
+  end
+
+  test "multiple scores with multiple letters" do
+    old = %{1 => ["A", "E"], 2 => ["D", "G"]}
+
+    expected = %{
+      "a" => 1,
+      "d" => 2,
+      "e" => 1,
+      "g" => 2
+    }
+
+    assert ETL.transform(old) == expected
+  end
+
+  test "multiple scores with differing numbers of letters" do
+    old = %{
+      1 => ~W(A E I O U L N R S T),
+      2 => ~W(D G),
+      3 => ~W(B C M P),
+      4 => ~W(F H V W Y),
+      5 => ~W(K),
+      8 => ~W(J X),
+      10 => ~W(Q Z)
+    }
+
+    expected = %{
+      "a" => 1,
+      "b" => 3,
+      "c" => 3,
+      "d" => 2,
+      "e" => 1,
+      "f" => 4,
+      "g" => 2,
+      "h" => 4,
+      "i" => 1,
+      "j" => 8,
+      "k" => 5,
+      "l" => 1,
+      "m" => 3,
+      "n" => 1,
+      "o" => 1,
+      "p" => 3,
+      "q" => 10,
+      "r" => 1,
+      "s" => 1,
+      "t" => 1,
+      "u" => 1,
+      "v" => 4,
+      "w" => 4,
+      "x" => 8,
+      "y" => 4,
+      "z" => 10
+    }
+
+    assert ETL.transform(old) == expected
+  end
+end

elixir/etl/test/test_helper.exs

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+ExUnit.start()
+ExUnit.configure(exclude: :pending, trace: true)