Remove render_k8s_object in helm & adjust doc

contributing-docs/testing/helm_unit_tests.rst

@@ -19,67 +19,58 @@
 Helm Unit Tests
 ---------------
 
-On the Airflow Project, we have decided to stick with pythonic testing for our Helm chart. This makes our chart
+On the Apache Airflow Project, we have decided to stick with pythonic testing for our Helm chart. This makes our chart
 easier to test, easier to modify, and able to run with the same testing infrastructure. To add Helm unit tests
-add them in ``helm-tests``.
+add them under ``helm-tests/tests/helm_tests`` directory.
 
 .. code-block:: python
 
     class TestBaseChartTest: ...
 
-To render the chart create a YAML string with the nested dictionary of options you wish to test. You can then
-use our ``render_chart`` function to render the object of interest into a testable Python dictionary. Once the chart
-has been rendered, you can use the ``render_k8s_object`` function to create a k8s model object. It simultaneously
-ensures that the object created properly conforms to the expected resource spec and allows you to use object values
-instead of nested dictionaries.
+To render the chart create a dictionary with options you wish to test. You can then use them with our ``render_chart``
+function to render the object of interest as a testable Python dictionary. Once the chart has been rendered,
+you can use ``jmespath.search`` function for searching desirable value of rendered chart to test.
 
 Example test here:
 
 .. code-block:: python
 
-    from chart_utils.helm_template_generator import render_chart, render_k8s_object
-
-    git_sync_basic = """
-    dags:
-      gitSync:
-      enabled: true
-    """
+    from chart_utils.helm_template_generator import render_chart
 
 
     class TestGitSyncScheduler:
         def test_basic(self):
-            helm_settings = yaml.safe_load(git_sync_basic)
-            res = render_chart(
-                "GIT-SYNC",
-                helm_settings,
+            docs = render_chart(
+                name="GIT-SYNC",
+                values={"dags": {"gitSync": {"enabled": True}}},
                 show_only=["templates/scheduler/scheduler-deployment.yaml"],
             )
-            dep: k8s.V1Deployment = render_k8s_object(res[0], k8s.V1Deployment)
-            assert "dags" == dep.spec.template.spec.volumes[1].name
+
+            assert "dags" == jmespath.search("spec.template.spec.volumes[1].name", docs[0])
 
 
 To execute all Helm tests using breeze command and utilize parallel pytest tests, you can run the
-following command (but it takes quite a long time even in a multi-processor machine).
+following command (it takes quite a long time even on a multi-processor machine).
 
 .. code-block:: bash
 
     breeze testing helm-tests
 
-You can also execute tests from a selected package only. Tests in ``tests/chart`` are grouped by packages
-so rather than running all tests, you can run only tests from a selected package. For example:
+You can also execute tests from a selected package only. Tests in ``helm-tests/tests/helm_tests`` are grouped
+by packages so rather than running all tests, you can run only tests from a selected package. For example:
 
 .. code-block:: bash
 
-    breeze testing helm-tests --test-type basic
+    breeze testing helm-tests --test-type airflow_aux
 
-Will run all tests from ``tests-charts/basic`` package.
+Will run all tests from ``helm-tests/tests/helm_tests/airflow_aux`` package.
 
 
 You can also run Helm tests individually via the usual ``breeze`` command. Just enter breeze and run the
 tests with pytest as you would do with regular unit tests (you can add ``-n auto`` command to run Helm
 tests in parallel - unlike most of the regular unit tests of ours that require a database, the Helm tests are
 perfectly safe to be run in parallel (and if you have multiple processors, you can gain significant
-speedups when using parallel runs):
+speedups when using parallel runs)):
 
 .. code-block:: bash
 
@@ -95,13 +86,13 @@ This runs all chart tests using all processors you have available.
 
 .. code-block:: bash
 
-    pytest helm-tests/tests/other/test_airflow_common.py -n auto
+    pytest helm-tests/tests/helm_tests/airflow_aux/test_airflow_common.py -n auto
 
 This will run all tests from ``tests_airflow_common.py`` file using all processors you have available.
 
 .. code-block:: bash
 
-    pytest helm-tests/tests/other/test_airflow_common.py
+    pytest helm-tests/tests/helm_tests/airflow_aux/test_airflow_common.py
 
 This will run all tests from ``tests_airflow_common.py`` file sequentially.
 

helm-tests/tests/chart_utils/helm_template_generator.py

@@ -30,9 +30,6 @@
 import jmespath
 import jsonschema
 import yaml
-from kubernetes.client.api_client import ApiClient
-
-api_client = ApiClient()
 
 AIRFLOW_ROOT = Path(__file__).resolve().parents[3]
 CHART_DIR = AIRFLOW_ROOT / "chart"
@@ -185,10 +182,3 @@ def prepare_k8s_lookup_dict(k8s_objects) -> dict[tuple[str, str], dict[str, Any]
         (k8s_object["kind"], k8s_object["metadata"]["name"]): k8s_object for k8s_object in k8s_objects
     }
     return k8s_obj_by_key
-
-
-def render_k8s_object(obj, type_to_render):
-    """
-    Function that renders dictionaries into k8s objects. For helm chart testing only.
-    """
-    return api_client._ApiClient__deserialize_model(obj, type_to_render)