namespacify n8l::am_i_sourced()

scripts/newinstall.sh

@@ -933,7 +933,7 @@ n8l::print_greeting() {
 #
 # See: https://stackoverflow.com/a/12396228
 #
-am_I_sourced() {
+n8l::am_i_sourced() {
 	if [ "${FUNCNAME[1]}" = source ]; then
 		return 0
 	else
@@ -1022,7 +1022,7 @@ main() {
 #
 # support being sourced as a lib or executed
 #
-if ! am_I_sourced; then
+if ! n8l::am_i_sourced; then
 	main "$@"
 fi
 

spec/unit/n8l/am_i_sourced_spec.rb

@@ -0,0 +1,21 @@
+require 'rspec/bash'
+
+describe 'n8l::am_i_sourced' do
+  include Rspec::Bash
+
+  let(:stubbed_env) { create_stubbed_env }
+  subject(:func) { 'n8l::am_i_sourced' }
+
+  context 'not being sourced' do
+    it 'dies' do
+      out, err, status = stubbed_env.execute_function(
+        'scripts/newinstall.sh',
+        func,
+      )
+
+      expect(status.exitstatus).to_not be 0
+      expect(out).to eq('')
+      expect(err).to eq('')
+    end
+  end
+end