[test] Properly skip test if pdflatex is not available

test/unittest_transforms.py

@@ -29,6 +29,7 @@ register_pil_transforms(ENGINE)
 import logilab.mtconverter as mtc
 import os
 import os.path as osp
+import errno
 import subprocess
 DATAPATH = osp.dirname(__file__)
 
@@ -86,7 +87,15 @@ r2MAoIO1DSsuM23SzgmqubGJEZuSRWhR
         self.assertEqual(converted, u'Hello ! OpenOffice.org/2.4$Unix OpenOffice.org_project/680m17$Build-9310 Hello quoi de neuf doc ? bonjour 2008-07-08T16:19:35 2009-01-09T14:44:54 mot-clef 1 PT37S')
 
     def test_pdf_to_text(self):
-        subprocess.check_call(['pdflatex', 'hello'], cwd=osp.abspath(DATAPATH), stdout=open(os.devnull, 'w'))
+        try:
+            subprocess.check_call(['pdflatex', 'hello'],
+                                  cwd=osp.abspath(DATAPATH),
+                                  stdout=open(os.devnull, 'w'))
+        except OSError as exc:
+            if exc.errno == errno.ENOENT:
+                self.skipTest('pdflatex not installed')
+            else:
+                raise
         data = TransformData(open(osp.join(DATAPATH, 'hello.pdf')).read(),
                              'application/pdf', 'utf8')
         converted = ENGINE.convert(data, 'text/plain').decode().strip()