feat: add get_expected_sql macro to support expected SQL generation i…

dbt/include/sqlserver/macros/materializations/unit_test/unit_test_table.sql

@@ -23,8 +23,7 @@
   {%- endfor -%}
 
   {% if not expected_sql %}
-  {%   set expected_sql = get_expected_sql(expected_rows, column_name_to_data_types) %}
-    {# column_name_to_quoted can be added once supported by get_expected_sql #}
+  {%   set expected_sql = get_expected_sql(expected_rows, column_name_to_data_types, column_name_to_quoted) %}
   {% endif %}
   {% set unit_test_sql = get_unit_test_sql(sql, expected_sql, expected_column_names_quoted) %}
 

dbt/include/sqlserver/macros/unit_test_sql/get_fixture_sql.sql

@@ -0,0 +1,17 @@
+{% macro get_expected_sql(rows, column_name_to_data_types, column_name_to_quoted) %}
+
+{%- if (rows | length) == 0 -%}
+    select top 0 * from dbt_internal_unit_test_actual where 1=0
+{%- else -%}
+{%- for row in rows -%}
+{%- set formatted_row = format_row(row, column_name_to_data_types) -%}
+select
+{%- for column_name, column_value in formatted_row.items() %} {{ column_value }} as {{ column_name_to_quoted[column_name] }}{% if not loop.last -%}, {%- endif %}
+{%- endfor %}
+{%- if not loop.last %}
+union all
+{% endif %}
+{%- endfor -%}
+{%- endif -%}
+
+{% endmacro %}