test: add crestron mocks and Test configuration

tests/EssentialsTests/UnitTest1.cs

@@ -0,0 +1,88 @@
+using CrestronMock;
+using PepperDash.Essentials;
+using PepperDash.Essentials.Core;
+
+namespace EssentialsTests;
+
+public class ControlSystemTests
+{
+    [Fact]
+    public void ControlSystem_Constructor_ShouldBuildSuccessfully()
+    {
+        // Arrange & Act
+        var exception = Record.Exception(() => new ControlSystem());
+
+        // Assert
+        Assert.Null(exception);
+    }
+
+    [Fact]
+    public void ControlSystem_Constructor_ShouldSetGlobalControlSystem()
+    {
+        // Arrange & Act
+        var controlSystem = new ControlSystem();
+
+        // Assert
+        Assert.NotNull(Global.ControlSystem);
+        Assert.Same(controlSystem, Global.ControlSystem);
+    }
+
+    [Fact]
+    public void ControlSystem_InitializeSystem_ShouldNotThrow()
+    {
+        // Arrange
+        var controlSystem = new ControlSystem();
+
+        // Act & Assert
+        var exception = Record.Exception(() => controlSystem.InitializeSystem());
+        Assert.Null(exception);
+    }
+
+    [Fact]
+    public void ControlSystem_ShouldImplementILoadConfig()
+    {
+        // Arrange & Act
+        var controlSystem = new ControlSystem();
+
+        // Assert
+        Assert.True(controlSystem is ILoadConfig);
+    }
+
+    [Fact]
+    public void ControlSystem_ShouldHaveRequiredInterfaces()
+    {
+        // Arrange & Act
+        var controlSystem = new ControlSystem();
+
+        // Assert - Check that it inherits from base mock and implements hardware interfaces
+        Assert.NotNull(controlSystem);
+        Assert.True(controlSystem is IComPorts, "ControlSystem should implement IComPorts");
+        Assert.True(controlSystem is IRelayPorts, "ControlSystem should implement IRelayPorts");
+        Assert.True(controlSystem is IIROutputPorts, "ControlSystem should implement IIROutputPorts");
+        Assert.True(controlSystem is IIOPorts, "ControlSystem should implement IIOPorts");
+        Assert.True(controlSystem is IDigitalInputPorts, "ControlSystem should implement IDigitalInputPorts");
+        Assert.True(controlSystem is IIRInputPort, "ControlSystem should implement IIRInputPort");
+    }
+
+    [Fact]
+    public void ControlSystem_ShouldHaveRequiredProperties()
+    {
+        // Arrange & Act
+        var controlSystem = new ControlSystem();
+
+        // Assert - Test by casting to interfaces to access properties
+        var comPorts = controlSystem as IComPorts;
+        var relayPorts = controlSystem as IRelayPorts;
+        var irOutputPorts = controlSystem as IIROutputPorts;
+        var ioPorts = controlSystem as IIOPorts;
+        var digitalInputPorts = controlSystem as IDigitalInputPorts;
+        var irInputPort = controlSystem as IIRInputPort;
+
+        Assert.NotNull(comPorts?.ComPorts);
+        Assert.NotNull(relayPorts?.RelayPorts);
+        Assert.NotNull(irOutputPorts?.IROutputPorts);
+        Assert.NotNull(ioPorts?.IOPorts);
+        Assert.NotNull(digitalInputPorts?.DigitalInputPorts);
+        Assert.NotNull(irInputPort?.IRInputPort);
+    }
+}