Adds basic test for convert command.

tests/commands/test_convert.py

@@ -0,0 +1,13 @@
+from bonobo.util.environ import change_working_directory
+from bonobo.util.testing import all_runners
+
+
+@all_runners
+def test_convert(runner, tmpdir):
+    csv_content = 'id;name\n1;Romain'
+    tmpdir.join('in.csv').write(csv_content)
+
+    with change_working_directory(tmpdir):
+        runner('convert', 'in.csv', 'out.csv')
+
+    assert tmpdir.join('out.csv').read().strip() == csv_content