Display "short test summary info" before (main) warnings

Fixes pytest-dev#3952.

Author: blueyed

src/_pytest/terminal.py

@@ -647,9 +647,10 @@ def pytest_sessionfinish(self, exitstatus):
     def pytest_terminal_summary(self):
         self.summary_errors()
         self.summary_failures()
-        yield
         self.summary_warnings()
+        yield
         self.summary_passes()
+        self.summary_warnings("warnings summary (during shutdown)")
 
     def pytest_keyboard_interrupt(self, excinfo):
         self._keyboardinterrupt_memo = excinfo.getrepr(funcargs=True)
@@ -720,7 +721,7 @@ def getreports(self, name):
                 values.append(x)
         return values
 
-    def summary_warnings(self):
+    def summary_warnings(self, title="warnings summary"):
         if self.hasopt("w"):
             all_warnings = self.stats.get("warnings")
             if not all_warnings:
@@ -730,7 +731,7 @@ def summary_warnings(self):
                 all_warnings, key=lambda wr: wr.get_location(self.config)
             )
 
-            self.write_sep("=", "warnings summary", yellow=True, bold=False)
+            self.write_sep("=", title, yellow=True, bold=False)
             for location, warning_records in grouped:
                 # legacy warnings show their location explicitly, while standard warnings look better without
                 # it because the location is already formatted into the message

testing/test_terminal.py

@@ -1076,7 +1076,11 @@ def pytest_terminal_summary(terminalreporter):
     )
     result = testdir.runpytest()
     result.stdout.fnmatch_lines(
-        ["*conftest.py:3:*internal warning", "*== 1 warnings in *"]
+        [
+            "*= warnings summary (during shutdown) =*",
+            "*conftest.py:3:*internal warning",
+            "*== 1 warnings in *",
+        ]
     )
     assert "None" not in result.stdout.str()