Unnamed reflections now take the model name/alias (#264)

### Summary

When creating a model for a reflection, if the name config parameter was
not set, the reflection would be named `Unnamed Reflection` inside
Dremio.

### Description

Instead, the default behavior should be for the reflection to be named
after the model name/alias
The default behavior has been changed, it will now set the name
attending to the following priority list:

1. Model config `name` parameter
2. Model config `alias` parameter
3. Model name

### Test Results

Two new tests have been added to the test suit for reflections, one with
the `alias` parameter and another one with the model name

### Changelog

-   [X] Added a summary of what this PR accomplishes to CHANGELOG.md

### Related Issue

#263

CHANGELOG.md

@@ -1,3 +1,9 @@
+# dbt-dremio v1.8.2
+
+## Changes
+
+- When naming reflections, if a `name` config is not set, the `alias` config parameter will be used instead. If also undefined, it will refer to the model name instead of using `Unnamed Reflection`
+
 # dbt-dremio v1.8.1
 
 ## Changes

dbt/include/dremio/macros/materializations/reflection/reflection.sql

@@ -14,7 +14,7 @@ limitations under the License.*/
 
 {% materialization reflection, adapter='dremio' %}
 
-  {% set reflection_name = config.get('name', validator=validation.any[basetring]) or 'Unnamed Reflection' %}
+  {% set reflection_name = config.get('name', validator=validation.any[basetring]) or config.get('alias', validator=validation.any[basetring]) or model.name %}
   {% set raw_reflection_type = config.get('reflection_type', validator=validation.any[basestring]) or 'raw' %}
   {% set raw_anchor = config.get('anchor', validator=validation.any[list, basestring]) %}
   {% set raw_external_target = config.get('external_target', validator=validation.any[list, basestring]) %}

tests/functional/adapter/dremio_specific/test_reflections.py

@@ -126,6 +126,21 @@
 -- depends_on: {{ ref('view1') }}
 """
 
+name_reflection_from_alias_model = """
+{{ config(alias='Reflection name from alias',
+            materialized='reflection',
+            display=['Date', 'DayOfWeek', 'PdDistrict', 'Category'],
+            reflection_type='raw')}}
+-- depends_on: {{ ref('view1') }}
+"""
+
+name_reflection_from_filename_model = """
+{{ config(materialized='reflection',
+            display=['Date', 'DayOfWeek', 'PdDistrict', 'Category'],
+            reflection_type='raw')}}
+-- depends_on: {{ ref('view1') }}
+"""
+
 
 class TestReflectionsDremio:
     @pytest.fixture(scope="class")
@@ -153,6 +168,8 @@ def models(self):
             "default_transformations.sql": default_transformations_model,
             "default_computations.sql": default_computations_model,
             "default_displays_model.sql": default_displays_model,
+            "name_reflection_from_alias.sql": name_reflection_from_alias_model,
+            "name_reflection_from_filename.sql": name_reflection_from_filename_model,
         }
 
     def _create_path_list(self, database, schema):
@@ -358,3 +375,35 @@ def testDefaultDisplaysReflection(self, project, client):
         assert "partitionFields" not in reflection
         assert "sortFields" not in reflection
         assert reflection["partitionDistributionStrategy"] == "STRIPED"
+
+    def testNameReflectionFromAlias(self, project, client):
+        run_dbt(["run", "--select", "view1", "name_reflection_from_alias"])
+
+        reflection = self._get_reflection(project, client, "view1", "Reflection name from alias")
+
+        assert reflection
+        assert reflection["name"] == "Reflection name from alias"
+        assert reflection["type"] == "RAW"
+        assert reflection["displayFields"] == [{"name": x} for x in ["Date", "DayOfWeek", "PdDistrict", "Category"]]
+        assert "dimensionFields" not in reflection
+        assert "measureFields" not in reflection
+        assert "distributionFields" not in reflection
+        assert "partitionFields" not in reflection
+        assert "sortFields" not in reflection
+        assert reflection["partitionDistributionStrategy"] == "STRIPED"
+
+    def testNameReflectionFromFilename(self, project, client):
+        run_dbt(["run", "--select", "view1", "name_reflection_from_filename"])
+
+        reflection = self._get_reflection(project, client, "view1", "name_reflection_from_filename")
+
+        assert reflection
+        assert reflection["name"] == "name_reflection_from_filename"
+        assert reflection["type"] == "RAW"
+        assert reflection["displayFields"] == [{"name": x} for x in ["Date", "DayOfWeek", "PdDistrict", "Category"]]
+        assert "dimensionFields" not in reflection
+        assert "measureFields" not in reflection
+        assert "distributionFields" not in reflection
+        assert "partitionFields" not in reflection
+        assert "sortFields" not in reflection
+        assert reflection["partitionDistributionStrategy"] == "STRIPED"