Improve some tests (#2278)

* Improve some tests

* Fix

tests/by_image/all-spark-notebook/test_spark_r_nbconvert.py

@@ -35,7 +35,5 @@ def test_spark_r_nbconvert(
         no_warnings=(not expected_warnings),
     )
 
-    if expected_warnings:
     warnings = TrackedContainer.get_warnings(logs)
-        assert len(warnings) == len(expected_warnings)
-        assert expected_warnings[0] == warnings[0]
+    assert warnings == expected_warnings

tests/by_image/pyspark-notebook/test_spark.py

@@ -15,7 +15,5 @@ def test_spark_shell(container: TrackedContainer) -> None:
         command=["bash", "-c", 'spark-shell <<< "1+1"'],
     )
     warnings = TrackedContainer.get_warnings(logs)
-    assert len(warnings) == 1
-    assert "Using incubator modules: jdk.incubator.vector" in warnings[0]
-
+    assert warnings == ["WARNING: Using incubator modules: jdk.incubator.vector"]
     assert "res0: Int = 2" in logs, "spark-shell does not work"

tests/by_image/pyspark-notebook/test_spark_nbconvert.py

@@ -12,19 +12,15 @@ LOGGER = logging.getLogger(__name__)
 THIS_DIR = Path(__file__).parent.resolve()
 
 
-@pytest.mark.parametrize(
-    "test_file",
-    ["issue_1168", "local_pyspark"],
-)
+@pytest.mark.parametrize("test_file", ["issue_1168", "local_pyspark"])
 @pytest.mark.parametrize("output_format", ["pdf", "html", "markdown"])
 def test_spark_nbconvert(
     container: TrackedContainer, test_file: str, output_format: str
 ) -> None:
     host_data_file = THIS_DIR / "data" / f"{test_file}.ipynb"
     logs = check_nbconvert(
-        container, host_data_file, "markdown", execute=True, no_warnings=False
+        container, host_data_file, output_format, execute=True, no_warnings=False
     )
 
     warnings = TrackedContainer.get_warnings(logs)
-    assert len(warnings) == 1
-    assert "Using incubator modules: jdk.incubator.vector" in warnings[0]
+    assert warnings == ["WARNING: Using incubator modules: jdk.incubator.vector"]