improving the import error for terrain.py and bumping to 0.1.16

README.md

 # lettuce
-> Version 0.1.15 - barium
+> Version 0.1.16 - barium
 
 ## On release names
 

lettuce/__init__.py

@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-version = '0.1.15'
+version = '0.1.16'
 release = 'barium'
 
 import os
@@ -35,7 +35,7 @@ from lettuce.registry import call_hook
 from lettuce.registry import STEP_REGISTRY
 from lettuce.registry import CALLBACK_REGISTRY
 
-from lettuce.exceptions import LettuceSyntaxError
+from lettuce import exceptions
 
 __all__ = ['after', 'before', 'step', 'world', 'STEP_REGISTRY', 'CALLBACK_REGISTRY', 'call_hook']
 
@@ -46,11 +46,12 @@ except Exception, e:
     if not "No module named terrain" in str(e):
         string = 'Lettuce has tried to load the conventional environment ' \
             'module "terrain"\nbut it has errors, check its contents and ' \
-            'try to run lettuce again.\n'
+            'try to run lettuce again.\n\nOriginal traceback below:\n\n'
+
         sys.stderr.write(string)
+        sys.stderr.write(exceptions.traceback.format_exc(e))
         raise SystemExit(1)
 
-
 class Runner(object):
     """ Main lettuce's test runner
 
@@ -109,7 +110,7 @@ class Runner(object):
             for filename in features_files:
                 feature = Feature.from_file(filename)
                 results.append(feature.run(self.scenarios))
-        except LettuceSyntaxError, e:
+        except exceptions.LettuceSyntaxError, e:
             sys.stderr.write(e.msg)
             failed = True
 

tests/functional/test_runner.py

@@ -18,7 +18,7 @@ import os
 import lettuce
 
 from StringIO import StringIO
-from os.path import dirname, abspath, join
+from os.path import dirname, join, abspath
 from nose.tools import assert_equals, with_setup, assert_raises
 from lettuce.fs import FeatureLoader
 from lettuce.core import Feature, fs, StepDefinition
@@ -59,10 +59,23 @@ def test_try_to_import_terrain():
         reload(lettuce)
         raise AssertionError('The runner should raise ImportError !')
     except SystemExit:
-        assert_stderr(
+        assert_stderr_lines(
             'Lettuce has tried to load the conventional environment module ' \
-            '"terrain"\n'
-            'but it has errors, check its contents and try to run lettuce again.\n'
+            '"terrain"\nbut it has errors, check its contents and ' \
+            'try to run lettuce again.\n\nOriginal traceback below:\n\n' \
+            "Traceback (most recent call last):\n"
+            '  File "%(lettuce_core_file)s", line 43, in <module>\n'
+            '    terrain = fs.FileSystem._import("terrain")\n' \
+            '  File "%(lettuce_fs_file)s", line 63, in _import\n' \
+            '    module = imp.load_module(name, fp, pathname, description)\n' \
+            '  File "%(terrain_file)s", line 18\n' \
+            '    it is here just to cause a syntax error\n' \
+            "                  ^\n" \
+            'SyntaxError: invalid syntax\n' % {
+                'lettuce_core_file': abspath(join(lettuce_dir, '__init__.py')),
+                'lettuce_fs_file': abspath(join(lettuce_dir, 'fs.py')),
+                'terrain_file': abspath(lettuce_path('..', 'tests', 'functional', 'sandbox', 'terrain.py')),
+            }
         )
 
     finally:

tests/unit/test_main.py

@@ -21,7 +21,7 @@ from mox import Mox
 
 def test_has_version():
     "A nice python module is supposed to have a version"
-    assert_equals(lettuce.version, '0.1.15')
+    assert_equals(lettuce.version, '0.1.16')
 
 def test_import():
     "lettuce importer does import"
@@ -31,18 +31,23 @@ def test_import():
 
 def test_terrain_import_exception():
     "lettuce error tries to import "
+
     string = 'Lettuce has tried to load the conventional environment ' \
         'module "terrain"\nbut it has errors, check its contents and ' \
-        'try to run lettuce again.\n'
+        'try to run lettuce again.\n\nOriginal traceback below:\n\n'
 
     mox = Mox()
 
     mox.StubOutWithMock(lettuce.fs, 'FileSystem')
+    mox.StubOutWithMock(lettuce.exceptions, 'traceback')
     mox.StubOutWithMock(lettuce.sys, 'stderr')
 
-    lettuce.fs.FileSystem._import('terrain').AndRaise(Exception('foo bar'))
+    exc = Exception('foo bar')
+    lettuce.fs.FileSystem._import('terrain').AndRaise(exc)
+    lettuce.exceptions.traceback.format_exc(exc).AndReturn('I AM THE TRACEBACK FOR IMPORT ERROR')
 
     lettuce.sys.stderr.write(string)
+    lettuce.sys.stderr.write('I AM THE TRACEBACK FOR IMPORT ERROR')
 
     mox.ReplayAll()