refactor: specialize exceptions

CoverageException is fine as a base class, but not good to use for
raising (and catching sometimes).  Introduce specialized exceptions that
allow third-party tools to integrate better.

1 files changed, 3 insertions, 3 deletions

diff --git a/coverage/summary.py b/coverage/summary.py
index 0b54a05b..467c601d 100644
--- a/coverage/summary.py
+++ b/coverage/summary.py
@@ -5,7 +5,7 @@
 
 import sys
 
-from coverage.exceptions import CoverageException
+from coverage.exceptions import ConfigError, NoDataError
 from coverage.misc import human_sorted_items
 from coverage.report import get_analysis_to_report
 from coverage.results import Numbers
@@ -103,7 +103,7 @@ class SummaryReporter:
         else:
             position = column_order.get(sort_option)
             if position is None:
-                raise CoverageException(f"Invalid sorting option: {self.config.sort!r}")
+                raise ConfigError(f"Invalid sorting option: {self.config.sort!r}")
             lines.sort(key=lambda l: (l[1][position], l[0]), reverse=reverse)
 
         for line in lines:
@@ -122,7 +122,7 @@ class SummaryReporter:
 
         # Write other final lines.
         if not self.total.n_files and not self.skipped_count:
-            raise CoverageException("No data to report.")
+            raise NoDataError("No data to report.")
 
         if self.config.skip_covered and self.skipped_count:
             self.writeout(