bpo-30158: Fix deprecation warnings in test_importlib introduced by bpo-29576. (#1285)

Author: serhiy-storchaka

Lib/test/test_importlib/test_abc.py

@@ -157,15 +157,14 @@ class MetaPathFinderDefaultsTests(ABCTestHarness):
 
     def test_find_module(self):
         # Default should return None.
-        self.assertIsNone(self.ins.find_module('something', None))
+        with self.assertWarns(DeprecationWarning):
+            found = self.ins.find_module('something', None)
+        self.assertIsNone(found)
 
     def test_invalidate_caches(self):
         # Calling the method is a no-op.
         self.ins.invalidate_caches()
 
-    def test_find_module_warns(self):
-        with self.assertWarns(DeprecationWarning):
-            self.ins.find_module('something', None)
 
 (Frozen_MPFDefaultTests,
  Source_MPFDefaultTests
@@ -183,7 +182,9 @@ class PathEntryFinderDefaultsTests(ABCTestHarness):
     SPLIT = make_abc_subclasses(PathEntryFinder)
 
     def test_find_loader(self):
-        self.assertEqual((None, []), self.ins.find_loader('something'))
+        with self.assertWarns(DeprecationWarning):
+            found = self.ins.find_loader('something')
+        self.assertEqual(found, (None, []))
 
     def find_module(self):
         self.assertEqual(None, self.ins.find_module('something'))
@@ -192,9 +193,6 @@ def test_invalidate_caches(self):
         # Should be a no-op.
         self.ins.invalidate_caches()
 
-    def test_find_loader_warns(self):
-        with self.assertWarns(DeprecationWarning):
-            self.ins.find_loader('something')
 
 (Frozen_PEFDefaultTests,
  Source_PEFDefaultTests
@@ -324,7 +322,8 @@ def test_no_spec(self):
         finder = self.finder(None)
         path = ['a', 'b', 'c']
         name = 'blah'
-        found = finder.find_module(name, path)
+        with self.assertWarns(DeprecationWarning):
+            found = finder.find_module(name, path)
         self.assertIsNone(found)
         self.assertEqual(name, finder.called_for[0])
         self.assertEqual(path, finder.called_for[1])
@@ -333,7 +332,8 @@ def test_spec(self):
         loader = object()
         spec = self.util.spec_from_loader('blah', loader)
         finder = self.finder(spec)
-        found = finder.find_module('blah', None)
+        with self.assertWarns(DeprecationWarning):
+            found = finder.find_module('blah', None)
         self.assertIs(found, spec.loader)
 
 
@@ -358,7 +358,8 @@ def find_spec(self, fullname, target=None):
     def test_no_spec(self):
         finder = self.finder(None)
         name = 'blah'
-        found = finder.find_loader(name)
+        with self.assertWarns(DeprecationWarning):
+            found = finder.find_loader(name)
         self.assertIsNone(found[0])
         self.assertEqual([], found[1])
         self.assertEqual(name, finder.called_for)
@@ -367,15 +368,17 @@ def test_spec_with_loader(self):
         loader = object()
         spec = self.util.spec_from_loader('blah', loader)
         finder = self.finder(spec)
-        found = finder.find_loader('blah')
+        with self.assertWarns(DeprecationWarning):
+            found = finder.find_loader('blah')
         self.assertIs(found[0], spec.loader)
 
     def test_spec_with_portions(self):
         spec = self.machinery.ModuleSpec('blah', None)
         paths = ['a', 'b', 'c']
         spec.submodule_search_locations = paths
         finder = self.finder(spec)
-        found = finder.find_loader('blah')
+        with self.assertWarns(DeprecationWarning):
+            found = finder.find_loader('blah')
         self.assertIsNone(found[0])
         self.assertEqual(paths, found[1])