Refactor configuration variable lookup (#13)

Refactor configuration variable lookup.

Change the `Application.get_env/3` calls to use  `Recaptcha.Config.get_env/3` to perform the lookups. Doing so allows the project to defer environment variable lookup to runtime instead of only at compile-time.

1 files changed, 16 insertions, 0 deletions

diff --git a/test/recaptcha/config_test.exs b/test/recaptcha/config_test.exs
new file mode 100644
index 0000000..93120c8
--- /dev/null
+++ b/test/recaptcha/config_test.exs
@@ -0,0 +1,16 @@
+defmodule RecaptchaConfigTest do
+  use ExUnit.Case, async: true
+
+  test "config can read regular config values" do
+    Application.put_env(:recaptcha, :test_var, "test")
+
+    assert Recaptcha.Config.get_env(:recaptcha, :test_var) == "test"
+  end
+
+  test "config can read environment variables" do
+    System.put_env("TEST_VAR", "test_env_vars")
+    Application.put_env(:recaptcha, :test_env_var, {:system, "TEST_VAR"})
+
+    assert Recaptcha.Config.get_env(:recaptcha, :test_env_var) == "test_env_vars"
+  end
+end