#41 max method is supported

Author: kccarter76

SubSonic.Tests/DAL/ExtensionMethod/ExtensionMethodTests.cs

@@ -22,8 +22,11 @@ protected override void SetSelectBehaviors()
 
             string
                 person_min = @"SELECT MIN([T1].[ID])
+FROM [dbo].[Person] AS [T1]",
+                person_max = @"SELECT MAX([T1].[ID])
 FROM [dbo].[Person] AS [T1]";
 
+            Context.Database.Instance.AddCommandBehavior(person_max, cmd => People.Max(x => x.ID));
             Context.Database.Instance.AddCommandBehavior(person_min, cmd => People.Min(x => x.ID));
         }
 
@@ -45,5 +48,11 @@ public void TheMinMethodIsSupported()
         {
             Context.People.Min(x => x.ID).Should().Be(1);
         }
+
+        [Test]
+        public void TheMaxMethodIsSupported()
+        {
+            Context.People.Max(x => x.ID).Should().Be(People.Count);
+        }
     }
 }

SubSonic/Infrastructure/Builders/DbSqlQueryBuilder/DbSqlQueryBuilderQueryProvider.cs

@@ -91,7 +91,7 @@ public TResult ExecuteMethod<TResult>(MethodCallExpression call)
                     throw Error.InvalidOperation($"Method {call.Method.Name} expects data.");
                 }
             }
-            else if (call.Method.Name.In(nameof(Queryable.Count), nameof(Queryable.LongCount), nameof(Queryable.Min)))
+            else if (call.Method.Name.In(nameof(Queryable.Count), nameof(Queryable.LongCount), nameof(Queryable.Min), nameof(Queryable.Max)))
             {
                 if (BuildSelect(dbSelect, where) is DbSelectExpression select)
                 {