feat: warnings are now real warnings

This makes coverage warnings visible when running test suites under
pytest.  But it also means some uninteresting warnings would show up in
our own test suite, so we had to catch or suppress those.

1 files changed, 14 insertions, 12 deletions

diff --git a/tests/test_oddball.py b/tests/test_oddball.py
index 52f80734..a97fc190 100644
--- a/tests/test_oddball.py
+++ b/tests/test_oddball.py
@@ -81,17 +81,18 @@ class RecursionTest(CoverageTest):
     def test_long_recursion(self):
         # We can't finish a very deep recursion, but we don't crash.
         with pytest.raises(RuntimeError):
-            self.check_coverage("""\
-                def recur(n):
-                    if n == 0:
-                        return 0
-                    else:
-                        return recur(n-1)+1
-
-                recur(100000)  # This is definitely too many frames.
-                """,
-                [1, 2, 3, 5, 7], ""
-                )
+            with pytest.warns(None):
+                self.check_coverage("""\
+                    def recur(n):
+                        if n == 0:
+                            return 0
+                        else:
+                            return recur(n-1)+1
+
+                    recur(100000)  # This is definitely too many frames.
+                    """,
+                    [1, 2, 3, 5, 7], ""
+                    )
 
     def test_long_recursion_recovery(self):
         # Test the core of bug 93: https://github.com/nedbat/coveragepy/issues/93
@@ -117,7 +118,8 @@ class RecursionTest(CoverageTest):
             """)
 
         cov = coverage.Coverage()
-        self.start_import_stop(cov, "recur")
+        with pytest.warns(None):
+            self.start_import_stop(cov, "recur")
 
         pytrace = (cov._collector.tracer_name() == "PyTracer")
         expected_missing = [3]