refactor: split input into more testable classes

Author: mnahkies

packages/openapi-code-generator/src/core/input.ts

@@ -368,6 +368,7 @@ export class Input {
     operationId: string,
     suffix: "RequestBody" | `${string}Response`,
   ) {
+
     const filtered = Object.entries(mediaTypes)
       // Sometimes people pass `{}` as the MediaType for 204 responses, filter these out
       .filter(([, mediaType]) => Boolean(mediaType.schema))
@@ -376,20 +377,20 @@ export class Input {
 
     return Object.fromEntries(
       filtered.map(([contentType, mediaType]) => {
-        return [
-          contentType,
-          {
-            schema: this.normalizeMediaTypeSchema(
-              operationId,
-              contentType,
-              mediaType.schema,
-              suffix,
-              hasMultipleMediaTypes,
-            ),
-            encoding: mediaType.encoding,
-          },
-        ]
-      }),
+          return [
+            contentType,
+            {
+              schema: this.normalizeMediaTypeSchema(
+                operationId,
+                contentType,
+                mediaType.schema,
+                suffix,
+                hasMultipleMediaTypes,
+              ),
+              encoding: mediaType.encoding,
+            },
+          ]
+        }),
     )
   }
 
@@ -403,7 +404,6 @@ export class Input {
     const syntheticName = `${upperFirst(operationId)}${
       hasMultipleMediaTypes ? mediaTypeToIdentifier(mediaType) : ""
     }${suffix}`
-
     const result = this.schemaNormalizer.normalizeSchemaObject(schema)
 
     const shouldCreateVirtualType =