On Fri, Mar 19, 2010 at 7:45 PM, Dan Davison <davi...@stats.ox.ac.uk> wrote:
> Nathan Neff <nathan.n...@gmail.com> writes: > > > I think it would be cool to use Org-babel as a simple test harness. > > > > I'd like to have an org file, with various sections that demonstrate how > to do > > something in Groovy. I'd like to be able to run all the code in the org > file > > and make sure > > they all run successfully (return code 0). > > > > In Groovy, the "assert" function will exit with a non-zero code if it > fails. > > How > > would I use org-babel to generate a "summary" table with the name of > > each patch of code and whether or not it succeeded? > > Like below? This is all Eric's doing. For quite a while now org-babel > has used a table like this to validate itself. It took me a while to > understand it, but basically Eric designed a special function (actually, > a macro) called sbe (source block evaluate) to be used in table formulas > to call org-babel source blocks. Use C-u C-c C-c to update the table. > > * Tests > | functionality | block | arg | expected | results | > pass | > > |----------------+--------------+-----+----------+----------------------+--------------------------------------------| > | simple regexp | simple_regex | | | | > pass | > | regexp with or | regex_or | | | A pretend problem... | > expected "" but was "A pretend problem..." | > #+TBLFM: $5='(if (= (length $3) 1) (sbe $2 (n $3)) (sbe $2)) :: $6='(if > (string= $4 $5) "pass" (format "expected %S but was %S" $4 $5)) > > * Code blocks for tests > ** Here's how to match "foo" > #+source: simple_regex > #+begin_src groovy > assert "foo" =~ /foo/ > #+end_src > > ** Here's how to match "bar" or "baz" > #+source: regex_or > #+begin_src groovy > assert "bar" =~ "ba(z|r)" > println "A pretend problem" > #+end_src > > You can put any arguments to your source blocks in the arg column. See > > http://orgmode.org/worg/org-contrib/babel/intro.php#spreadsheet > > (It often makes most sense to clone Worg and view the org files > themseleves) > > And for a more complex example, including how to pass arguments to > source blocks to sbe, see our full test suite in the file > development.org in the devel repo > > http://github.com/eschulte/babel-dev/ > > Dan > > This is really cool Dan! I simplified the test table -- it runs the test in column 1, then prints the output to the second column, and puts "pass" or "fail" in the 3rd column if the 2nd column is blank. * Tests, Simpler Output from each source block should be nothing. | block | output | result | |--------------+---------------------------------------------------------------+--------| | simple_regex | | pass | | regex_or | | pass | | regex_fail | Caught: java.lang.AssertionError: Expression: (bar =~ foo)... | fail | #+TBLFM: $2='(sbe $1) :: $3='(if (string= $2 "") "pass" "fail") * Code blocks for tests ** Here's how to match "foo" #+source: simple_regex #+begin_src groovy results: output assert "foo" =~ /foo/ #+end_src ** Here's how to match "bar" or "baz" #+source: regex_or #+begin_src groovy assert "bar" =~ "ba(z|r)" #+end_src ** A failing test #+source: regex_fail #+begin_src groovy assert "bar" =~ "foo" #+end_src
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