#15916: if there are no docstrings, make empty suite, not an error.
This makes doctest work like unittest: if the test case is empty, that
just means there are zero tests run, it's not an error. The existing
behavior was broken, since it only gave an error if there were *no*
docstrings, and zero tests run if there were docstrings but none of them
contained tests. So this makes it self-consistent as well.
Patch by Glenn Jones.
diff --git a/Misc/ACKS b/Misc/ACKS
index d3866fd..4767dde 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -630,6 +630,7 @@
Nicolas Joly
Brian K. Jones
Evan Jones
+Glenn Jones
Jeremy Jones
Richard Jones
Irmen de Jong
diff --git a/Misc/NEWS b/Misc/NEWS
index b86cc7f..b302093 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -203,6 +203,9 @@
- Issue #20334: inspect.Signature and inspect.Parameter are now hashable.
+- Issue #15916: doctest.DocTestSuite returns an empty unittest.TestSuite instead
+ of raising ValueError if it finds no tests
+
IDLE
----