Default CommandType to Text and Direction to Input

DuckDB.NET.Data/DuckDBCommand.cs

@@ -19,7 +19,7 @@ public class DuckDBCommand : DbCommand
     public new virtual DuckDBParameterCollection Parameters => parameters;
 
     public override int CommandTimeout { get; set; }
-    public override CommandType CommandType { get; set; }
+    public override CommandType CommandType { get; set; } = CommandType.Text;
     public override bool DesignTimeVisible { get; set; }
     public override UpdateRowSource UpdatedRowSource { get; set; }
 

DuckDB.NET.Data/DuckDBParameter.cs

@@ -29,7 +29,7 @@ public override object? Value
         }
     }
 
-    public override ParameterDirection Direction { get; set; }
+    public override ParameterDirection Direction { get; set; } = ParameterDirection.Input;
     public override bool IsNullable { get; set; }
 
     [AllowNull]

DuckDB.NET.Test/DuckDBCommandTests.cs

@@ -17,4 +17,11 @@ public void SetCommandTextAndConnection()
         cmd.CommandText.Should().Be("Select 1");
         cmd.Connection.Should().Be(Connection);
     }
-}
+
+    // https://learn.microsoft.com/dotnet/api/system.data.idbcommand.commandtype: "The default is Text."
+    [Fact]
+    public void CommandTypeDefaultsToText()
+    {
+        new DuckDBCommand().CommandType.Should().Be(CommandType.Text);
+    }
+}

DuckDB.NET.Test/Parameters/ParameterCollectionTests.cs

@@ -5,6 +5,15 @@ namespace DuckDB.NET.Test.Parameters;
 
 public class ParameterCollectionTests(DuckDBDatabaseFixture db) : DuckDBTestBase(db)
 {
+    // https://learn.microsoft.com/dotnet/api/system.data.common.dbparameter.direction: "The default is Input."
+    [Fact]
+    public void ParameterDirectionDefaultsToInput()
+    {
+        new DuckDBParameter().Direction.Should().Be(ParameterDirection.Input);
+        new DuckDBParameter("name", 42).Direction.Should().Be(ParameterDirection.Input);
+        Command.CreateParameter().Direction.Should().Be(ParameterDirection.Input);
+    }
+
     [Theory]
     [InlineData("SELECT ?1::INT;")]
     [InlineData("SELECT ?::INT;")]