#98 Remove dependency on 3rd party lib dapper (#99)

* #98 Refactor out dapper dependency

* #98 Use correct parameters

* Update README and refactor database operations to remove Dapper dependency. Introduced native Npgsql parameter handling for improved type safety as in Dapper and reduced package size. Added unit tests for NpgsqlCommandExtensions and updated SQL command types for better instantiation checks.

---------

Co-authored-by: Niek Jannink <niek.jannink@craytive.com>
Co-authored-by: Ashley Marques <marques.ashley@gmail.com>

Author: 3 people

CachingTest/NpgsqlCommandExtensionsTests.cs

@@ -0,0 +1,188 @@
+using System;
+using Community.Microsoft.Extensions.Caching.PostgreSql;
+using Npgsql;
+
+namespace CachingTest;
+
+public class NpgsqlCommandExtensionsTests
+{
+    [Fact]
+    public void AddParameters_WithItemIdUtcNow_AddsCorrectParameters()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var utcNow = DateTimeOffset.UtcNow;
+        var item = new ItemIdUtcNow
+        {
+            Id = "test-id",
+            UtcNow = utcNow
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert
+        Assert.Equal(2, command.Parameters.Count);
+        Assert.Equal("test-id", command.Parameters["@Id"].Value);
+        Assert.Equal(utcNow, command.Parameters["@UtcNow"].Value);
+    }
+
+    [Fact]
+    public void AddParameters_WithItemFull_AddsAllParameters()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var utcNow = DateTimeOffset.UtcNow;
+        var value = new byte[] { 1, 2, 3, 4, 5 };
+        var item = new ItemFull
+        {
+            Id = "test-id",
+            ExpiresAtTime = utcNow.AddHours(1),
+            Value = value,
+            SlidingExpirationInSeconds = 3600,
+            AbsoluteExpiration = utcNow.AddDays(1)
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert
+        Assert.Equal(5, command.Parameters.Count);
+        Assert.Equal("test-id", command.Parameters["@Id"].Value);
+        Assert.Equal(value, command.Parameters["@Value"].Value);
+        Assert.Equal(utcNow.AddHours(1), command.Parameters["@ExpiresAtTime"].Value);
+        Assert.Equal(3600.0, command.Parameters["@SlidingExpirationInSeconds"].Value);
+        Assert.Equal(utcNow.AddDays(1), command.Parameters["@AbsoluteExpiration"].Value);
+    }
+
+    [Fact]
+    public void AddParameters_WithItemFull_WithNullValues_AddsDBNull()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var utcNow = DateTimeOffset.UtcNow;
+        var value = new byte[] { 1, 2, 3 };
+        var item = new ItemFull
+        {
+            Id = "test-id",
+            ExpiresAtTime = utcNow.AddHours(1),
+            Value = value,
+            SlidingExpirationInSeconds = null,
+            AbsoluteExpiration = null
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert
+        Assert.Equal(5, command.Parameters.Count);
+        Assert.Equal(DBNull.Value, command.Parameters["@SlidingExpirationInSeconds"].Value);
+        Assert.Equal(DBNull.Value, command.Parameters["@AbsoluteExpiration"].Value);
+    }
+
+    [Fact]
+    public void AddParameters_WithCurrentUtcNow_AddsCorrectParameter()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var utcNow = DateTimeOffset.UtcNow;
+        var item = new CurrentUtcNow
+        {
+            UtcNow = utcNow
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert
+        Assert.Single(command.Parameters);
+        Assert.Equal(utcNow, command.Parameters["@UtcNow"].Value);
+    }
+
+    [Fact]
+    public void AddParameters_WithItemIdOnly_AddsCorrectParameter()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var item = new ItemIdOnly
+        {
+            Id = "test-id"
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert
+        Assert.Single(command.Parameters);
+        Assert.Equal("test-id", command.Parameters["@Id"].Value);
+    }
+
+    [Fact]
+    public void AddParameters_MultipleCallsWithSameParameterType_AppendsParameters()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var item1 = new ItemIdOnly { Id = "test-id-1" };
+        var item2 = new CurrentUtcNow { UtcNow = DateTimeOffset.UtcNow };
+
+        // Act
+        command.AddParameters(item1);
+        command.AddParameters(item2);
+
+        // Assert
+        Assert.Equal(2, command.Parameters.Count);
+    }
+
+    [Fact]
+    public void AddParameters_WithItemIdUtcNow_ParameterNamesMatchSqlConvention()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var item = new ItemIdUtcNow
+        {
+            Id = "test-id",
+            UtcNow = DateTimeOffset.UtcNow
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert - Parameter names should start with @
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@Id");
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@UtcNow");
+    }
+
+    [Fact]
+    public void AddParameters_WithItemFull_ParameterNamesMatchSqlConvention()
+    {
+        // Arrange
+        using var connection = new NpgsqlConnection("Host=localhost;Database=test;Username=test;Password=test");
+        using var command = connection.CreateCommand();
+        var item = new ItemFull
+        {
+            Id = "test-id",
+            ExpiresAtTime = DateTimeOffset.UtcNow.AddHours(1),
+            Value = new byte[] { 1, 2, 3 },
+            SlidingExpirationInSeconds = 3600,
+            AbsoluteExpiration = DateTimeOffset.UtcNow.AddDays(1)
+        };
+
+        // Act
+        command.AddParameters(item);
+
+        // Assert - Parameter names should start with @
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@Id");
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@Value");
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@ExpiresAtTime");
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@SlidingExpirationInSeconds");
+        Assert.Contains(command.Parameters, p => p.ParameterName == "@AbsoluteExpiration");
+    }
+}
+