two_fer

elixir/two-fer/test/test_helper.exs

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

elixir/two-fer/test/two_fer_test.exs

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+defmodule TwoFerTest do
+  use ExUnit.Case
+
+  test "no name given" do
+    assert TwoFer.two_fer() == "One for you, one for me."
+  end
+
+  # @tag :pending
+  test "a name given" do
+    assert TwoFer.two_fer("Alice") == "One for Alice, one for me."
+  end
+
+  # @tag :pending
+  test "another name given" do
+    assert TwoFer.two_fer("Bob") == "One for Bob, one for me."
+  end
+
+  # @tag :pending
+  test "when the argument is a number" do
+    assert_raise FunctionClauseError, fn ->
+      TwoFer.two_fer(10)
+    end
+  end
+
+  # @tag :pending
+  test "when the argument is an atom" do
+    assert_raise FunctionClauseError, fn ->
+      TwoFer.two_fer(:bob)
+    end
+  end
+
+  # @tag :pending
+  test "when the argument is a charlist" do
+    assert_raise FunctionClauseError, fn ->
+      refute TwoFer.two_fer(~c"Jon Snow")
+    end
+  end
+end