tests: network: Add http trusted host adapter tests

tests/unit/test_network_session.py

@@ -82,6 +82,7 @@ def test_trusted_hosts_adapter(self, tmpdir):
         # Check that the "port wildcard" is present.
         assert "https://example.com:" in session.adapters
         # Check that the cache is enabled.
+        assert hasattr(session.adapters["http://example.com/"], "cache")
         assert hasattr(session.adapters["https://example.com/"], "cache")
 
     def test_add_trusted_host(self):
@@ -93,14 +94,22 @@ def test_add_trusted_host(self):
         prefix3 = 'https://host3/'
         prefix3_wildcard = 'https://host3:'
 
+        prefix2_http = 'http://host2/'
+        prefix3_http = 'http://host3/'
+        prefix3_wildcard_http = 'http://host3:'
+
         # Confirm some initial conditions as a baseline.
         assert session.pip_trusted_origins == [
             ('host1', None), ('host3', None)
         ]
         assert session.adapters[prefix3] is trusted_host_adapter
         assert session.adapters[prefix3_wildcard] is trusted_host_adapter
 
+        assert session.adapters[prefix3_http] is trusted_host_adapter
+        assert session.adapters[prefix3_wildcard_http] is trusted_host_adapter
+
         assert prefix2 not in session.adapters
+        assert prefix2_http not in session.adapters
 
         # Test adding a new host.
         session.add_trusted_host('host2')
@@ -110,6 +119,7 @@ def test_add_trusted_host(self):
         # Check that prefix3 is still present.
         assert session.adapters[prefix3] is trusted_host_adapter
         assert session.adapters[prefix2] is trusted_host_adapter
+        assert session.adapters[prefix2_http] is trusted_host_adapter
 
         # Test that adding the same host doesn't create a duplicate.
         session.add_trusted_host('host3')
@@ -119,11 +129,13 @@ def test_add_trusted_host(self):
 
         session.add_trusted_host('host4:8080')
         prefix4 = 'https://host4:8080/'
+        prefix4_http = 'http://host4:8080/'
         assert session.pip_trusted_origins == [
             ('host1', None), ('host3', None),
             ('host2', None), ('host4', 8080)
         ]
         assert session.adapters[prefix4] is trusted_host_adapter
+        assert session.adapters[prefix4_http] is trusted_host_adapter
 
     def test_add_trusted_host__logging(self, caplog):
         """