Re-enable doctests for the quicktour (#15828)

* Re-enable doctests for the quicktour

* Re-enable doctests for task_summary (#15830)

* Remove &

conftest.py

@@ -15,6 +15,7 @@
 # tests directory-specific settings - this file is run automatically
 # by pytest before any tests are run
 
+import doctest
 import sys
 import warnings
 from os.path import abspath, dirname, join
@@ -59,3 +60,17 @@ def pytest_sessionfinish(session, exitstatus):
     # If no tests are collected, pytest exists with code 5, which makes the CI fail.
     if exitstatus == 5:
         session.exitstatus = 0
+
+
+# Doctest custom flag to ignore output.
+IGNORE_RESULT = doctest.register_optionflag('IGNORE_RESULT')
+
+OutputChecker = doctest.OutputChecker
+
+class CustomOutputChecker(OutputChecker):
+    def check_output(self, want, got, optionflags):
+        if IGNORE_RESULT and optionflags:
+            return True
+        return OutputChecker.check_output(self, want, got, optionflags)
+
+doctest.OutputChecker = CustomOutputChecker