Add tests for skipping deprecated endpoints

This commit adds a new test class, DeprecatedMultipleInterfaceByTagEndpointsSkippedTests, which verifies that deprecated endpoints tagged by interfaces are correctly skipped when generating code. This ensures that users do not unintentionally use deprecated API endpoints.

src/Refitter.Tests/Examples/DeprecatedMultipleInterfaceByTagEndpointsSkippedTests.cs

@@ -0,0 +1,124 @@
+using FluentAssertions;
+
+using Refitter.Core;
+using Refitter.Tests.Build;
+
+using Xunit;
+
+namespace Refitter.Tests.Examples;
+
+public class DeprecatedMultipleInterfaceByTagEndpointsSkippedTests
+{
+    private const string OpenApiSpec = @"
+openapi: '3.0.0'
+paths:
+  /foo/{id}:
+    get:
+      tags:
+      - 'Foo'
+      operationId: 'Get foo details'
+      description: 'Get the details of the specified foo'
+      parameters:
+        - in: 'path'
+          name: 'id'
+          description: 'Foo ID'
+          required: true
+          schema:
+            type: 'string'
+      responses:
+        '200':
+          description: 'successful operation'
+  /foo:
+    get:
+      tags:
+      - 'Foo'
+      operationId: 'Get all foos'
+      description: 'Get all foos'      
+      responses:
+        '200':
+          description: 'successful operation'
+  /bar:
+    get:
+      tags:
+      - 'Bar'
+      operationId: 'Get all bars'
+      description: 'Get all bars'
+      deprecated: true
+      responses:
+        '200':
+          description: 'successful operation'
+  /bar/{id}:
+    get:
+      tags:
+      - 'Bar'
+      operationId: 'Get bar details'
+      description: 'Get the details of the specified bar'  
+      deprecated: true
+      responses:
+        '200':
+          description: 'successful operation'
+";
+
+    [Fact]
+    public async Task Can_Generate_Code()
+    {
+        string generateCode = await GenerateCode();
+        generateCode.Should().NotBeNullOrWhiteSpace();
+    }
+
+    [Fact]
+    public async Task Should_NotContain_Obsolete_Attribute()
+    {
+        string generateCode = await GenerateCode();
+        generateCode.Should().NotContain("[System.Obsolete]");
+    }
+
+    [Fact]
+    public async Task Should_NotContain_GetAllBars()
+    {
+        string generateCode = await GenerateCode();
+        generateCode.Should().NotContain("GetAllBarsEndpoint");
+    }
+
+    [Fact]
+    public async Task Should_NotContain_GetBarDetails()
+    {
+        string generateCode = await GenerateCode();
+        generateCode.Should().NotContain("GetBarDetailsEndpoint");
+    }
+
+    [Fact]
+    public async Task Can_Build_Generated_Code()
+    {
+        string generateCode = await GenerateCode();
+        BuildHelper
+            .BuildCSharp(generateCode)
+            .Should()
+            .BeTrue();
+    }
+
+    private static async Task<string> GenerateCode()
+    {
+        var swaggerFile = await CreateSwaggerFile(OpenApiSpec);
+        var settings = new RefitGeneratorSettings
+        {
+            OpenApiPath = swaggerFile,
+            GenerateDeprecatedOperations = false,
+            MultipleInterfaces = MultipleInterfaces.ByTag,
+        };
+
+        var sut = await RefitGenerator.CreateAsync(settings);
+        var generateCode = sut.Generate();
+        return generateCode;
+    }
+
+    private static async Task<string> CreateSwaggerFile(string contents)
+    {
+        var filename = $"{Guid.NewGuid()}.yml";
+        var folder = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+        Directory.CreateDirectory(folder);
+        var swaggerFile = Path.Combine(folder, filename);
+        await File.WriteAllTextAsync(swaggerFile, contents);
+        return swaggerFile;
+    }
+}