WIP

Author: paulomorgado

src/NSwag.CodeGeneration.CSharp.Tests/IssueTests.cs

@@ -5,6 +5,83 @@ namespace NSwag.CodeGeneration.CSharp.Tests
 {
     public class IssueTests
     {
+        [Fact]
+        public async Task Issue4587_allow_nullable_path_parameters()
+        {
+            // Arrange
+            var swagger =
+@"{
+  ""openapi"": ""3.0.1"",
+  ""paths"": {
+    ""/api/1/{param}"": {
+      ""get"": {
+        ""parameters"": [
+          {
+            ""name"": ""param"",
+            ""in"": ""path"",
+            ""required"": false,
+            ""schema"": {
+              ""type"": ""string"",
+            }
+          }
+        ],
+        ""responses"": {
+          ""200"": {
+            ""content"": {
+              ""application/json"": {
+                ""schema"": {
+                  ""type"": ""string""
+                }
+              }
+            }
+          }
+        }
+      }
+    },
+    ""/api/2/{param}/info"": {
+      ""get"": {
+        ""parameters"": [
+          {
+            ""name"": ""param"",
+            ""in"": ""path"",
+            ""required"": false,
+            ""schema"": {
+              ""type"": ""string"",
+            }
+          }
+        ],
+        ""responses"": {
+          ""200"": {
+            ""content"": {
+              ""application/json"": {
+                ""schema"": {
+                  ""type"": ""string""
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}";
+            var document = await OpenApiDocument.FromJsonAsync(swagger);
+
+            // Act
+            var codeGen = new CSharpClientGenerator(document, new CSharpClientGeneratorSettings()
+            {
+                UseBaseUrl = false,
+                GenerateClientInterfaces = true,
+                OperationNameGenerator = new SingleClientFromOperationIdOperationNameGenerator()
+            });
+
+            var code = codeGen.GenerateFile();
+
+            // Assert
+            await VerifyHelper.Verify(code);
+            CSharpCompiler.AssertCompile(code);
+        }
+
         [Fact]
         public async Task Issue5260_compilation_error_in_query_string_array_parameters()
         {