Initial upload

elixir/secret-handshake/test/secret_handshake_test.exs

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+defmodule SecretHandshakeTest do
+  use ExUnit.Case
+
+  describe "Create a handshake for a number" do
+    # @tag :pending
+    test "wink for 1" do
+      assert SecretHandshake.commands(1) == ["wink"]
+    end
+
+    @tag :pending
+    test "double blink for 10" do
+      assert SecretHandshake.commands(2) == ["double blink"]
+    end
+
+    @tag :pending
+    test "close your eyes for 100" do
+      assert SecretHandshake.commands(4) == ["close your eyes"]
+    end
+
+    @tag :pending
+    test "jump for 1000" do
+      assert SecretHandshake.commands(8) == ["jump"]
+    end
+
+    @tag :pending
+    test "combine two actions" do
+      assert SecretHandshake.commands(3) == ["wink", "double blink"]
+    end
+
+    @tag :pending
+    test "reverse two actions" do
+      assert SecretHandshake.commands(19) == ["double blink", "wink"]
+    end
+
+    @tag :pending
+    test "reversing one action gives the same action" do
+      assert SecretHandshake.commands(24) == ["jump"]
+    end
+
+    @tag :pending
+    test "reversing no actions still gives no actions" do
+      assert SecretHandshake.commands(16) == []
+    end
+
+    @tag :pending
+    test "all possible actions" do
+      assert SecretHandshake.commands(15) == ["wink", "double blink", "close your eyes", "jump"]
+    end
+
+    @tag :pending
+    test "reverse all possible actions" do
+      assert SecretHandshake.commands(31) == ["jump", "close your eyes", "double blink", "wink"]
+    end
+
+    @tag :pending
+    test "do nothing for zero" do
+      assert SecretHandshake.commands(0) == []
+    end
+
+    @tag :pending
+    test "do nothing if lower 5 bits not set" do
+      assert SecretHandshake.commands(32) == []
+    end
+  end
+end

elixir/secret-handshake/test/test_helper.exs

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