fix(python): correct Literal type comparison bugs in assertion classes (#15269)

Author: sgomezvillamor

metadata-ingestion/src/datahub/api/entities/assertion/field_assertion.py

@@ -38,7 +38,7 @@ def to_field_values_failure_threshold(self) -> FieldValuesFailThresholdClass:
         return FieldValuesFailThresholdClass(
             type=(
                 FieldValuesFailThresholdTypeClass.COUNT
-                if self.type == Literal["count"]
+                if self.type == "count"
                 else FieldValuesFailThresholdTypeClass.PERCENTAGE
             ),
             value=self.value,
@@ -81,7 +81,7 @@ def get_assertion_info(
                     excludeNulls=self.exclude_nulls,
                     transform=(
                         FieldTransformClass(type=FieldTransformTypeClass.LENGTH)
-                        if self.field_transform == Literal["length"]
+                        if self.field_transform == FieldTransform.LENGTH
                         else None
                     ),
                 ),

metadata-ingestion/src/datahub/api/entities/assertion/sql_assertion.py

@@ -58,7 +58,7 @@ def get_assertion_info(
                 statement=self.statement,
                 changeType=(
                     AssertionValueChangeType.ABSOLUTE
-                    if self.change_type == Literal["absolute"]
+                    if self.change_type == "absolute"
                     else AssertionValueChangeType.PERCENTAGE
                 ),
                 operator=self.operator.operator,

metadata-ingestion/src/datahub/api/entities/assertion/volume_assertion.py

@@ -64,7 +64,7 @@ def get_assertion_info(
                 rowCountChange=RowCountChange(
                     type=(
                         AssertionValueChangeType.ABSOLUTE
-                        if self.change_type == Literal["absolute"]
+                        if self.change_type == "absolute"
                         else AssertionValueChangeType.PERCENTAGE
                     ),
                     operator=self.operator.operator,