diff --git a/Demo/dbo.GetDiscount.sql b/Demo/dbo.GetDiscount.sql
index 3a7a7c2..eafb77c 100644
--- a/Demo/dbo.GetDiscount.sql
+++ b/Demo/dbo.GetDiscount.sql
@@ -6,4 +6,4 @@ CREATE FUNCTION dbo.GetDiscount(@amount DECIMAL(13,2))
 RETURNS TABLE
 AS
 RETURN
-  SELECT 0 Discount;
+  SELECT CASE WHEN @amount>=50 THEN @amount*.1 ELSE 0 END Discount;
diff --git a/Tests/GetDiscountTests.sql b/Tests/GetDiscountTests.sql
index bdb7f43..0cfe5ca 100644
--- a/Tests/GetDiscountTests.sql
+++ b/Tests/GetDiscountTests.sql
@@ -20,3 +20,21 @@ BEGIN
   EXEC tSQLt.AssertEqualsTable '#expected','#actual';
 END;
 GO
+CREATE PROCEDURE GetDiscountTests.[test 10% discount if amount greater 50]
+AS
+BEGIN
+  SELECT Discount INTO #actual FROM dbo.GetDiscount(51.00);
+  SELECT TOP(0) A.* INTO #expected FROM #actual X LEFT JOIN #actual A ON 1=0;
+  INSERT INTO #expected VALUES(5.1);
+  EXEC tSQLt.AssertEqualsTable '#expected','#actual';
+END;
+GO
+CREATE PROCEDURE GetDiscountTests.[test 10% discount if amount equal 50]
+AS
+BEGIN
+  SELECT Discount INTO #actual FROM dbo.GetDiscount(50.00);
+  SELECT TOP(0) A.* INTO #expected FROM #actual X LEFT JOIN #actual A ON 1=0;
+  INSERT INTO #expected VALUES(5.0);
+  EXEC tSQLt.AssertEqualsTable '#expected','#actual';
+END;
+GO
\ No newline at end of file