concat test

Author: sdebruyn

dbt/include/sqlserver/macros/utils/concat.sql

@@ -1,3 +1,3 @@
 {% macro sqlserver__concat(fields) -%}
-    concat({{ fields|join(', ') }}, '')
+    concat({{ fields|join(', ') }})
 {%- endmacro %}

tests/functional/adapter/test_utils.py

@@ -83,7 +83,15 @@ def models(self):
 
 
 class TestConcatSQLServer(BaseFixedMacro, BaseConcat):
-    pass
+    @pytest.fixture(scope="class")
+    def seeds(self):
+        return {
+            "data_concat.csv": """input_1,input_2,output
+a,b,ab
+a,,a
+,b,b
+"""
+        }
 
 
 class TestDateTruncSQLServer(BaseFixedMacro, BaseDateTrunc):