Dask skip biggus

lib/iris/tests/__init__.py

@@ -1033,6 +1033,13 @@ class MyPlotTests(test.GraphicsTest):
     return skip(fn)
 
 
+# Control for @skip_biggus : Set to False to run the biggus-dependent tests.
+_SKIP_BIGGUS_DEPENDENT_TESTS = True
+
+skip_biggus = unittest.skipIf(_SKIP_BIGGUS_DEPENDENT_TESTS,
+                              reason='Test(s) assume biggus in place of dask.')
+
+
 skip_grib = unittest.skipIf(not GRIB_AVAILABLE, 'Test(s) require "gribapi", '
                                                 'which is not available.')
 

lib/iris/tests/unit/test_skip_biggus.py

@@ -0,0 +1,41 @@
+# (C) British Crown Copyright 2017, Met Office
+#
+# This file is part of Iris.
+#
+# Iris is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Lesser General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# Iris is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with Iris.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Check operation of @skip_biggus.
+
+"""
+from __future__ import (absolute_import, division, print_function)
+from six.moves import (filter, input, map, range, zip)  # noqa
+
+# Import iris.tests first so that some things can be initialised before
+# importing anything else.
+import iris.tests as tests
+
+from iris.tests import skip_biggus
+
+
+class TestSkipBiggus(tests.IrisTest):
+    # Test always fails, unless skipped.
+    # To check, set tests._SKIP_BIGGUS_DEPENDENT_TESTS = False,
+    # then this test should fail.
+    @skip_biggus
+    def test_fail(self):
+        self.assertTrue(False)
+
+
+if __name__ == '__main__':
+    tests.main()