Ignore a few bits that are annoying to test.

.coveragerc

@@ -7,4 +7,4 @@ source =
 omit =
     tap/tests/*
     # This is tested with tox -e module in CI.
-    tap/__main__.py
+    src/tap/__main__.py

src/tap/runner.py

@@ -25,7 +25,7 @@ def addSubTest(self, test, subtest, err):
         else:
             self.tracker.add_ok(self._cls_name(test), self._description(subtest))
 
-    def stopTestRun(self):
+    def stopTestRun(self):  # pragma: no cover
         """Once the test run is complete, generate each of the TAP files."""
         super().stopTestRun()
         self.tracker.generate_tap_reports()
@@ -115,7 +115,7 @@ def set_stream(self, streaming):
         _tracker.streaming = streaming
         _tracker.stream = sys.stdout
 
-    def _makeResult(self):
+    def _makeResult(self):  # pragma: no cover
         result = self.resultclass(self.stream, self.descriptions, self.verbosity)
         result.tracker = _tracker
         return result