[Piglit] [PATCH v2 2/4] framework/profile: Fail gracefully when reordering of tests fail

[Dylan Baker]

Currently if a test name is passed that doesn't exist in the first
profile a stack trace will be generated. This isn't necessary, since
it's an expected behavior that reordering fails when asked to order
a test not contained in the profile. Instead just fail gracefully with
a helpful message.

Signed-off-by: Dylan Baker <dylanx.c.baker at intel.com>
---
 framework/profile.py | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/framework/profile.py b/framework/profile.py
index 9bdc720..987873b 100644
--- a/framework/profile.py
+++ b/framework/profile.py
@@ -170,8 +170,15 @@ class TestDict(collections.MutableMapping):
     def reorder(self, order):
         """Reorder the TestDict to match the order of the provided list."""
         new = collections.OrderedDict()
-        for k in order:
-            new[k] = self.__container[k]
+        try:
+            for k in order:
+                new[k] = self.__container[k]
+        except KeyError:
+            # If there is a name in order that isn't available in self there
+            # will be a KeyError, this is expected. In this case fail
+            # gracefully and report the error to the user.
+            raise exceptions.PiglitFatalError(
+                'Cannot reorder test: "{}", it is not in the profile.'.format(k))
         self.__container = new
 
 
-- 
2.8.2