Added test for show command

Author: darrelmiller

test/Microsoft.OpenApi.Hidi.Tests/Microsoft.OpenApi.Hidi.Tests.csproj

@@ -53,6 +53,9 @@
     <None Update="UtilityFiles\postmanCollection_ver4.json">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
+    <None Update="UtilityFiles\SampleOpenApi.yml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
     <None Update="UtilityFiles\Todo.xml">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>

test/Microsoft.OpenApi.Hidi.Tests/Services/OpenApiServiceTests.cs

@@ -94,5 +94,15 @@ public void ShowCommandGeneratesMermaidDiagram()
             var output = reader.ReadToEnd();
             Assert.Contains("graph LR", output);
         }
+
+        [Fact]
+        public async Task ShowCommandGeneratesMermaidMarkdownFileWithMermaidDiagram()
+        {
+            var fileinfo = new FileInfo("sample.md");
+            await OpenApiService.ShowOpenApiDocument("UtilityFiles\\SampleOpenApi.yml", fileinfo, LogLevel.Information, new CancellationToken());
+
+            var output = File.ReadAllText(fileinfo.FullName);
+            Assert.Contains("graph LR", output);
+        }
     }
 }

test/Microsoft.OpenApi.Hidi.Tests/UtilityFiles/SampleOpenApi.yml

@@ -0,0 +1,19 @@
+openapi: 3.0.0
+info:
+  title: Sample OpenApi
+  version: 1.0.0
+paths:
+  /api/editresource:
+    get:
+      responses:
+        '200':
+          description: OK
+    patch:
+      responses:
+        '200':
+          description: OK
+  /api/viewresource:
+    get:
+      responses:
+        '200':
+          description: OK