Add 2 interface

CourseApp.Tests/CourseApp.Tests.sln

@@ -5,6 +5,8 @@ VisualStudioVersion = 15.0.27428.2002
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CourseApp.Tests", "CourseApp.Tests.csproj", "{F0AA3B44-F9EE-4875-88F6-26523A7914C9}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CourseApp", "..\CourseApp\CourseApp.csproj", "{A2F7EF9C-FCFB-496C-8974-05DA2E3DA7D5}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -15,6 +17,10 @@ Global
 		{F0AA3B44-F9EE-4875-88F6-26523A7914C9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{F0AA3B44-F9EE-4875-88F6-26523A7914C9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{F0AA3B44-F9EE-4875-88F6-26523A7914C9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A2F7EF9C-FCFB-496C-8974-05DA2E3DA7D5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A2F7EF9C-FCFB-496C-8974-05DA2E3DA7D5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A2F7EF9C-FCFB-496C-8974-05DA2E3DA7D5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A2F7EF9C-FCFB-496C-8974-05DA2E3DA7D5}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

CourseApp.Tests/UnitTest3.cs

@@ -1,6 +1,7 @@
 using System;
 using Xunit;
 using ConsoleApp2;
+using static ConsoleApp2.Furniture;
 
 namespace CourseApp.Tests
 {
@@ -30,5 +31,73 @@ public void TestElementInMassive()
             Assert.Equal("Polsha", furniture[1].Produced);
             Assert.Equal("derevo", furniture[1].Material);
         }
+
+        [Fact]
+        public void TestIComparable1()
+        {
+            Furniture[] furnitur = new Furniture[2];
+            furnitur[0] = new Stol("B");
+            furnitur[1] = new Shcaf("Aljir");
+            Array.Sort(furnitur);
+            Assert.Equal("Aljir", furnitur[0].Name);
+        }
+
+        [Fact]
+        public void TestIComparable2()
+        {
+            Furniture[] furnitur = new Furniture[4];
+            furnitur[0] = new Stol("Ru");
+            furnitur[1] = new Shcaf("Ge");
+            furnitur[2] = new Shcaf("Al");
+            furnitur[3] = new Stol("Be");
+            Array.Sort(furnitur);
+            Assert.Equal("Al", furnitur[0].Name);
+            Assert.Equal("Be", furnitur[1].Name);
+            Assert.Equal("Ge", furnitur[2].Name);
+            Assert.Equal("Ru", furnitur[3].Name);
+        }
+
+        [Fact]
+        public void TestIComparable3()
+        {
+            Furniture[] furnitur = new Furniture[4];
+            furnitur[0] = new Stol("1");
+            furnitur[1] = new Shcaf("A");
+            furnitur[2] = new Shcaf("S");
+            furnitur[3] = new Stol("2");
+            Array.Sort(furnitur);
+            Assert.Equal("1", furnitur[0].Name);
+            Assert.Equal("2", furnitur[1].Name);
+            Assert.Equal("A", furnitur[2].Name);
+            Assert.Equal("S", furnitur[3].Name);
+        }
+
+        [Fact]
+        public void TestIPrint1()
+        {
+            Stol stol2 = new Stol("Russia", 160, 200);
+            Assert.Equal("Stol", stol2.Mebel());
+        }
+
+        [Fact]
+        public void TestIPrint2()
+        {
+            Shcaf shcaf1 = new Shcaf("Russia", "Supastol", "береза");
+            Assert.Equal("Schaf", shcaf1.Mebel());
+        }
+
+        [Fact]
+        public void TestIPrint3()
+        {
+            Stol stol3 = new Stol("Russia", 200, 200);
+            Assert.Equal(40000, stol3.Ploshad());
+        }
+
+        [Fact]
+        public void TestIPrint4()
+        {
+            Stol stol1 = new Stol("Rus", 160, 200);
+            Assert.Equal(32000, stol1.Ploshad());
+        }
     }
 }

CourseApp/CourseApp.csproj

@@ -7,6 +7,10 @@
     <NoWarn>1573,1591,1701;1702;1705</NoWarn>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Compile Remove="Program1.cs" />
+  </ItemGroup>
+
    <ItemGroup>
     <PackageReference Include="StyleCop.Analyzers" Version="1.0.2" PrivateAssets="all" />
   </ItemGroup>

CourseApp/Furniture.cs

@@ -4,7 +4,7 @@ namespace ConsoleApp2
 {
     using System;
 
-    public abstract class Furniture
+    public abstract partial class Furniture : IComparable<Furniture>, IPrint
     {
         private string produced;
         private string name;
@@ -64,5 +64,20 @@ public override string ToString()
         }
 
         public abstract string GetInfo();
+
+        public int CompareTo(Furniture other)
+        {
+            return Name.CompareTo(other.Name);
+        }
+
+        public virtual string Mebel()
+        {
+            return "Ya mebel'";
+        }
+
+        public int Ploshad()
+        {
+            return height * length;
+        }
     }
 }

CourseApp/IPrint.cs

@@ -0,0 +1,9 @@
+namespace ConsoleApp2
+{
+        public interface IPrint
+        {
+            string Mebel();
+
+            int Ploshad();
+        }
+}

CourseApp/Shcaf.cs

@@ -12,6 +12,11 @@ public Shcaf()
             Name = "chto-to";
         }
 
+        public Shcaf(string name)
+        {
+            Name = name;
+        }
+
         public Shcaf(string produced, string name, string material)
          : base(produced, name)
         {
@@ -29,5 +34,10 @@ public override string GetInfo()
         {
             return $"Произведенно в:{Produced} Имя:{Name} Материал:{Material}";
         }
+
+        public override string Mebel()
+        {
+            return "Shcaf";
+        }
     }
 }

CourseApp/Stol.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace ConsoleApp2
+namespace ConsoleApp2
 {
     using System;
 
@@ -12,6 +10,11 @@ public Stol()
             Produced = "Russia";
         }
 
+        public Stol(string name)
+        {
+            Name = name;
+        }
+
         public Stol(string produced, string name, int length, int height)
         : base(produced, name)
         {
@@ -38,5 +41,10 @@ public override string GetInfo()
         {
             return $"Произведенно в : {Produced} Имя: {Name}  Длина: {Lenght}  Высота: {Height}";
         }
+
+        public override string Mebel()
+        {
+            return "Stol";
+        }
     }
 }