Add MetadataPrimaryKeyIssue

Author: mythz

tests/ServiceStack.OrmLite.Tests/Issues/MetadataPrimaryKeyIssue.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using NUnit.Framework;
+using ServiceStack.OrmLite.Tests.Expression;
+
+namespace ServiceStack.OrmLite.Tests.Issues
+{
+    public class MetadataPrimaryKeyIssue : OrmLiteTestBase
+    {
+        [Test]
+        public void Should_return_same_model_reference()
+        {
+            var model1 = typeof(LetterFrequency).GetModelMetadata();
+            var model2 = typeof(LetterFrequency).GetModelMetadata();
+            Assert.AreEqual(model1, model2);
+        }
+
+        [Test]
+        public void Should_return_same_model_reference_multi_threaded()
+        {
+            Task<ModelDefinition> task1 = System.Threading.Tasks.Task.Run(() => typeof(LetterFrequency).GetModelMetadata());
+            Task<ModelDefinition> task2 = System.Threading.Tasks.Task.Run(() => typeof(LetterFrequency).GetModelMetadata());
+            System.Threading.Tasks.Task.WaitAll(task1, task2);
+
+            Assert.AreEqual(task1.Result, task2.Result);
+        }
+
+        [Test]
+        public void Should_generate_select_statement()
+        {
+            Assert.AreEqual(SelectStatement(), SelectStatement());
+        }
+
+        [Test]
+        public void Should_generate_select_statement_multi_threaded()
+        {
+            Task<string> task1 = System.Threading.Tasks.Task.Run(() => SelectStatement());
+            Task<string> task2 = System.Threading.Tasks.Task.Run(() => SelectStatement());
+            System.Threading.Tasks.Task.WaitAll(task1, task2);
+
+            Assert.AreEqual(task1.Result, task2.Result);
+        }
+
+        private string SelectStatement()
+        {
+            var pk = typeof(LetterFrequency).GetModelMetadata().PrimaryKey;
+            using (var db = OpenDbConnection())
+            {
+                return db.From<LetterFrequency>().OrderByFields(pk).ToSelectStatement();
+            }
+        }
+    }
+}