1 files changed, 53 insertions, 0 deletions
diff --git a/python/mozperftest/mozperftest/metrics/exceptions.py b/python/mozperftest/mozperftest/metrics/exceptions.py
new file mode 100644
index 0000000000..dcac64ded9
--- /dev/null
+++ b/python/mozperftest/mozperftest/metrics/exceptions.py
@@ -0,0 +1,53 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+class MetricsMultipleTransformsError(Exception):
+    """Raised when more than one transformer was specified.
+
+    This is because intermediate results with the same data
+    name are merged when being processed.
+    """
+
+    pass
+
+
+class MetricsMissingResultsError(Exception):
+    """Raised when no results could be found after parsing the intermediate results."""
+
+    pass
+
+
+class PerfherderValidDataError(Exception):
+    """Raised when no valid data (int/float) can be found to build perfherder blob."""
+
+    pass
+
+
+class NotebookInvalidTransformError(Exception):
+    """Raised when an invalid custom transformer is set."""
+
+    pass
+
+
+class NotebookTransformOptionsError(Exception):
+    """Raised when an invalid option is given to a transformer."""
+
+    pass
+
+
+class NotebookTransformError(Exception):
+    """Raised on generic errors within the transformers."""
+
+
+class NotebookDuplicateTransformsError(Exception):
+    """Raised when a directory contains more than one transformers have the same class name."""
+
+    pass
+
+
+class NotebookInvalidPathError(Exception):
+    """Raised when an invalid path is given."""
+
+    pass