Microsoft.Data.Sqlite: Test on .NET Framework

src/Microsoft.Data.Sqlite.Core/SqliteConnection.cs

@@ -7,8 +7,8 @@
 using System.Data.Common;
 using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
+using System.Reflection;
 using Microsoft.Data.Sqlite.Properties;
-using Microsoft.Data.Sqlite.Utilities;
 using SQLitePCL;
 using static SQLitePCL.raw;
 
@@ -23,6 +23,9 @@ public partial class SqliteConnection : DbConnection
     {
         internal const string MainDatabaseName = "main";
 
+        private const int SQLITE_WIN32_DATA_DIRECTORY_TYPE = 1;
+        private const int SQLITE_WIN32_TEMP_DIRECTORY_TYPE = 2;
+
         private readonly List<WeakReference<SqliteCommand>> _commands = new();
 
         private Dictionary<string, (object? state, strdelegate_collation? collation)>? _collations;
@@ -44,7 +47,42 @@ public partial class SqliteConnection : DbConnection
         private static readonly StateChangeEventArgs _fromOpenToClosedEventArgs = new StateChangeEventArgs(ConnectionState.Open, ConnectionState.Closed);
 
         static SqliteConnection()
-            => BundleInitializer.Initialize();
+        {
+            Type.GetType("SQLitePCL.Batteries_V2, SQLitePCLRaw.batteries_v2")
+                ?.GetRuntimeMethod("Init", Type.EmptyTypes)
+                ?.Invoke(null, null);
+
+            try
+            {
+                var currentAppData = Type.GetType("Windows.Storage.ApplicationData, Windows, ContentType=WindowsRuntime")
+                    ?? Type.GetType("Windows.Storage.ApplicationData, Microsoft.Windows.SDK.NET")
+                    ?.GetRuntimeProperty("Current")?.GetValue(null);
+
+                var localFolder = currentAppData?.GetType()
+                    .GetRuntimeProperty("LocalFolder")?.GetValue(currentAppData);
+                var localFolderPath = (string?)localFolder?.GetType()
+                    .GetRuntimeProperty("Path")?.GetValue(localFolder);
+                if (localFolderPath != null)
+                {
+                    var rc = sqlite3_win32_set_directory(SQLITE_WIN32_DATA_DIRECTORY_TYPE, localFolderPath);
+                    Debug.Assert(rc == SQLITE_OK);
+                }
+
+                var tempFolder = currentAppData?.GetType()
+                    .GetRuntimeProperty("TemporaryFolder")?.GetValue(currentAppData);
+                var tempFolderPath = (string?)tempFolder?.GetType()
+                    .GetRuntimeProperty("Path")?.GetValue(tempFolder);
+                if (tempFolderPath != null)
+                {
+                    var rc = sqlite3_win32_set_directory(SQLITE_WIN32_TEMP_DIRECTORY_TYPE, tempFolderPath);
+                    Debug.Assert(rc == SQLITE_OK);
+                }
+            }
+            catch
+            {
+                // Ignore "The process has no package identity."
+            }
+        }
 
         /// <summary>
         ///     Initializes a new instance of the <see cref="SqliteConnection" /> class.

test/Microsoft.Data.Sqlite.Tests/Microsoft.Data.Sqlite.Tests.csproj

@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFrameworks>net6.0;net461</TargetFrameworks>
     <DefineConstants>$(DefineConstants);E_SQLITE3</DefineConstants>
     <Nullable>enable</Nullable>
   </PropertyGroup>

test/Microsoft.Data.Sqlite.Tests/Microsoft.Data.Sqlite.e_sqlcipher.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFrameworks>net6.0;net461</TargetFrameworks>
     <DefineConstants>$(DefineConstants);E_SQLCIPHER</DefineConstants>
     <Nullable>enable</Nullable>
   </PropertyGroup>

test/Microsoft.Data.Sqlite.Tests/Microsoft.Data.Sqlite.sqlite3.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFrameworks>net6.0;net461</TargetFrameworks>
     <DefineConstants>$(DefineConstants);SQLITE3</DefineConstants>
     <Nullable>enable</Nullable>
   </PropertyGroup>

test/Microsoft.Data.Sqlite.Tests/Microsoft.Data.Sqlite.winsqlite3.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFrameworks>net6.0;net461</TargetFrameworks>
     <DefineConstants>$(DefineConstants);WINSQLITE3</DefineConstants>
     <Nullable>enable</Nullable>
   </PropertyGroup>

test/Microsoft.Data.Sqlite.Tests/SqliteConnectionFactoryTest.cs

@@ -159,7 +159,7 @@ public void Functions_dont_bleed_across_connections()
 
             Assert.Same(db, connection2.Handle);
             var functions = connection2.ExecuteScalar<string>("SELECT group_concat(name) FROM pragma_function_list;")
-                .Split(",");
+                .Split(',');
             Assert.DoesNotContain("function1", functions);
             Assert.DoesNotContain("aggregate1", functions);
         }
@@ -180,7 +180,7 @@ public void Collations_dont_bleed_across_connections()
 
             Assert.Same(db, connection2.Handle);
             var collations = connection2.ExecuteScalar<string>("SELECT group_concat(name) FROM pragma_collation_list;")
-                .Split(",");
+                .Split(',');
             Assert.DoesNotContain("COLLATION1", collations);
         }
 

test/Microsoft.Data.Sqlite.Tests/SqliteConnectionTest.cs

@@ -1338,7 +1338,7 @@ public void GetSchema_ReservedWords_works()
             Assert.Single(dataTable.Columns);
             Assert.Contains(
                 dataTable.Rows.Cast<DataRow>(),
-                r => r.Field<string>(DbMetaDataColumnNames.ReservedWord) == "SELECT");
+                r => (string)r[DbMetaDataColumnNames.ReservedWord] == "SELECT");
         }
     }
 }

test/Microsoft.Data.Sqlite.Tests/SqliteDataReaderTest.cs

@@ -688,6 +688,7 @@ public void GetTimeSpan_throws_when_non_query()
         public void GetDateTimeOffset_throws_when_null()
             => GetX_throws_when_null(r => ((SqliteDataReader)r).GetDateTimeOffset(0));
 
+#if NET6_0_OR_GREATER
         [Fact]
         public void GetFieldValue_of_DateOnly_works()
             => GetFieldValue_works(
@@ -711,6 +712,7 @@ public void GetFieldValue_of_TimeOnly_works_with_milliseconds()
             => GetFieldValue_works(
                 "SELECT '13:10:15.5';",
                 new TimeOnly(13, 10, 15, 500));
+#endif
 
         [Theory]
         [InlineData("SELECT 1;", "INTEGER")]

test/Microsoft.Data.Sqlite.Tests/SqliteParameterTest.cs

@@ -257,6 +257,7 @@ public void Bind_works_when_DateTimeOffset_with_SqliteType_Real()
                 2456761.9680439816,
                 SqliteType.Real);
 
+#if NET6_0_OR_GREATER
         [Fact]
         public void Bind_works_when_DateOnly()
             => Bind_works(new DateOnly(2014, 4, 14), "2014-04-14");
@@ -276,6 +277,7 @@ public void Bind_works_when_TimeOnly_with_milliseconds()
         [Fact]
         public void Bind_works_when_TimeOnly_with_SqliteType_Real()
             => Bind_works(new TimeOnly(13, 10, 15), 0.5487847222222222, SqliteType.Real);
+#endif
 
         [Fact]
         public void Bind_works_when_DBNull()