First go at args

test/test-arguments

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+testArgumentsBecomeVars() {
+  echo '
+  #!/usr/bin/env bash
+
+  ⚡banana() {
+    _argument hello
+    if [[ -n "$_arg_hello" ]]; then 
+      echo "I AM A BANANA"
+    fi
+  }
+  ' > go
+
+  echo "source $REPO_ROOT/⚡" >> go
+  chmod +x go
+
+  try ./go banana hello=please
+  assertEquals "I AM A BANANA" "$STDOUT"
+}
+
+testArgumentsNotDeclaredDoNot() {
+  echo '
+  #!/usr/bin/env bash
+
+  ⚡banana() {
+    _argument hello
+    if [[ -n "$_arg_goodbye" ]]; then 
+      echo "I AM A BANANA"
+    fi
+  }
+  ' > go
+
+  echo "source $REPO_ROOT/⚡" >> go
+  chmod +x go
+
+  try ./go banana goodbye=foo
+  assertEquals "" "$STDOUT"
+}
+
+source $(dirname $0)/runner