Mention option to wrap tests in module.

doc/manual/workflow-tips.rst

@@ -30,8 +30,8 @@ the following elements:
 
  end
 
- - **Put tests of your code in another file.** Create another file, say
- ``test_tmp.jl``, which begins with ::
+ - **Put your test code in another file.** Create another file, say
+ ``tst.jl``, which begins with ::
 
  import Tmp
 
@@ -42,14 +42,27 @@ the following elements:
  ``Tmp.`` to uses of names defined in your module. (You can lower that
  cost by keeping your module name short.)
 
+ Alternatively, you can wrap the contents of your test file in a
+ module, as ::
+
+ module Tst
+ using Tmp
+
+ <scratch work>
+
+ end
+
+ The advantage is that you can now do :obj:`using` ``Tmp`` in your
+ test code and can therefore avoid prepending ``Tmp.`` everywhere.
+ The disadvantage is that code can no longer be selectively copied
+ to the REPL without some tweaking.
+
  - **Lather. Rinse. Repeat.** Explore ideas at the ``julia`` command
- prompt. Save good ideas in your ``test_tmp.jl`` file. Occasionally
+ prompt. Save good ideas in ``tst.jl``. Occasionally
  restart the REPL, issuing ::
 
  reload("Tmp")
- include("test_tmp.jl")
-
- editing these two files as you go.
+ include("tst.jl")
 
 Simplify initialization
 ~~~~~~~~~~~~~~~~~~~~~~~