Abstract required mocks for get_full_manifest tests to reduce dupli…

…cation

There are a set of required mocks that `get_full_manifest` unit tests need.
Instead of doing these mocks in each test, we've abstracted these mocks into
a reusable function. I did try to do this as a fixture, but for some reaosn
the mocks didn't actually propagate when I did that.

tests/unit/parser/test_manifest.py

@@ -114,20 +114,25 @@ def test_partial_parse_safe_update_project_parser_files_partially(
 
 
 class TestGetFullManifest:
-    def test_write_perf_info(
-        self,
-        manifest: Manifest,
-        mock_project: MagicMock,
-        mock_adapter: MagicMock,
-        mocker: MockerFixture,
-    ) -> None:
+    def set_required_mocks(
+        self, mocker: MockerFixture, manifest: Manifest, mock_adapter: MagicMock
+    ):
         mocker.patch("dbt.parser.manifest.get_adapter").return_value = mock_adapter
         mocker.patch("dbt.parser.manifest.ManifestLoader.load").return_value = manifest
         mocker.patch("dbt.parser.manifest._check_manifest").return_value = None
         mocker.patch(
             "dbt.parser.manifest.ManifestLoader.save_macros_to_adapter"
         ).return_value = None
         mocker.patch("dbt.tracking.active_user").return_value = User(None)
+
+    def test_write_perf_info(
+        self,
+        manifest: Manifest,
+        mock_project: MagicMock,
+        mock_adapter: MagicMock,
+        mocker: MockerFixture,
+    ) -> None:
+        self.set_required_mocks(mocker, manifest, mock_adapter)
         write_perf_info = mocker.patch("dbt.parser.manifest.ManifestLoader.write_perf_info")
 
         ManifestLoader.get_full_manifest(
@@ -149,13 +154,7 @@ def test_reset(
         mock_adapter: MagicMock,
         mocker: MockerFixture,
     ) -> None:
-        mocker.patch("dbt.parser.manifest.get_adapter").return_value = mock_adapter
-        mocker.patch("dbt.parser.manifest.ManifestLoader.load").return_value = manifest
-        mocker.patch("dbt.parser.manifest._check_manifest").return_value = None
-        mocker.patch(
-            "dbt.parser.manifest.ManifestLoader.save_macros_to_adapter"
-        ).return_value = None
-        mocker.patch("dbt.tracking.active_user").return_value = User(None)
+        self.set_required_mocks(mocker, manifest, mock_adapter)
 
         ManifestLoader.get_full_manifest(
             config=mock_project,