Add test for basename on path with scheme

Author: alechenninger

spec/functions/basename_spec.rb

@@ -10,4 +10,5 @@
   it { is_expected.to run.with_params('relative_path/to/a/file.ext').and_return('file.ext') }
   it { is_expected.to run.with_params('/path/to/a/file.ext', '.ext').and_return('file') }
   it { is_expected.to run.with_params('relative_path/to/a/file.ext', '.ext').and_return('file') }
+  it { is_expected.to run.with_params('scheme:///path/to/a/file.ext').and_return('file.ext') }
 end