1 files changed, 42 insertions, 0 deletions
diff --git a/lib/spack/external/nose/failure.py b/lib/spack/external/nose/failure.py
new file mode 100644
index 0000000000..c5fabfda5e
--- /dev/null
+++ b/lib/spack/external/nose/failure.py
@@ -0,0 +1,42 @@
+import logging
+import unittest
+from traceback import format_tb
+from nose.pyversion import is_base_exception
+
+log = logging.getLogger(__name__)
+
+
+__all__ = ['Failure']
+
+
+class Failure(unittest.TestCase):
+    """Unloadable or unexecutable test.
+
+    A Failure case is placed in a test suite to indicate the presence of a
+    test that could not be loaded or executed. A common example is a test
+    module that fails to import.
+    
+    """
+    __test__ = False # do not collect
+    def __init__(self, exc_class, exc_val, tb=None, address=None):
+        log.debug("A failure! %s %s %s", exc_class, exc_val, format_tb(tb))
+        self.exc_class = exc_class
+        self.exc_val = exc_val
+        self.tb = tb
+        self._address = address
+        unittest.TestCase.__init__(self)
+
+    def __str__(self):
+        return "Failure: %s (%s)" % (
+            getattr(self.exc_class, '__name__', self.exc_class), self.exc_val)
+
+    def address(self):
+        return self._address
+    
+    def runTest(self):
+        if self.tb is not None:
+            if is_base_exception(self.exc_val):
+                raise self.exc_val, None, self.tb
+            raise self.exc_class, self.exc_val, self.tb
+        else:
+            raise self.exc_class(self.exc_val)