Added more tests

Sharp7.Tests/PropertiesTests.cs

@@ -0,0 +1,67 @@
+using Shouldly;
+using Xunit;
+
+namespace Sharp7.Tests
+{
+    public class PropertiesTests
+    {
+        [Fact]
+        public void PlcHasNoName()
+        {
+            var client = new S7Client();
+            client.Name.ShouldBeNull();
+            string.IsNullOrEmpty(client.Name).ShouldBeTrue();
+        }
+
+        [Fact]
+        public void PlcHasAName()
+        {
+            var name = "test";
+            var client = new S7Client(name);
+            client.Name.ShouldNotBeNull();
+            string.IsNullOrEmpty(client.Name).ShouldBeFalse();
+            client.Name.ShouldBe(name);
+        }
+        
+        [Fact]
+        public void PlcHasIp()
+        {
+            var ip = "10.10.10.10";
+            var client = new S7Client();
+            client.SetConnectionParams(ip, 0, 0);
+            client.PLCIpAddress.ShouldNotBeNull();
+            string.IsNullOrEmpty(client.PLCIpAddress).ShouldBeFalse();
+            client.PLCIpAddress.ShouldBe(ip);
+        }
+        
+        [Fact]
+        public void PlcHasNoIp()
+        {
+            var client = new S7Client();
+            client.PLCIpAddress.ShouldBeNull();
+            string.IsNullOrEmpty(client.PLCIpAddress).ShouldBeTrue();
+        }
+        
+        [Fact]
+        public void PlcToString()
+        {
+            var client = new S7Client();
+            client.ToString().ShouldBe("PLC @0.0.0.0");
+        }
+        
+        [Fact]
+        public void PlcToStringWithName()
+        {
+            var client = new S7Client("Test");
+            client.ToString().ShouldBe("PLC Test@0.0.0.0");
+        }
+        
+        [Fact]
+        public void PlcToStringWithNameAndIp()
+        {
+            var client = new S7Client("Test");
+            client.SetConnectionParams("1.2.3.4", 0, 0);
+            client.ToString().ShouldBe("PLC Test@1.2.3.4");
+        }
+    }
+}

Sharp7.Tests/ServerClientTestBase.cs

@@ -12,7 +12,7 @@ namespace Sharp7.Tests
 
         public ServerClientTestBase() : base()
         {
-            client = new S7Client();
+            client = new S7Client("Test Plc");
             var rc = client.ConnectTo(Localhost, 0, 2);
             rc.ShouldBe(0);
         }