Add YAML merge test (#1285)

Author: drwpow

packages/openapi-typescript/scripts/update-examples.ts

@@ -13,13 +13,13 @@ async function generateSchemas() {
     ...Object.keys(singleFile).map(async (name) => {
       const start = performance.now();
       const ext = path.extname(singleFile[name as keyof typeof singleFile]);
-      await execa("node", ["./bin/cli.js", `./examples/${name}${ext}`, "-o", `./examples/${name}.ts`], { cwd });
+      await execa("./bin/cli.js", [`./examples/${name}${ext}`, "-o", `./examples/${name}.ts`], { cwd });
       done++;
       console.log(`✔︎ [${done}/${allSchemas.length}] Updated ${name} (${Math.round(performance.now() - start)}ms)`); // eslint-disable-line no-console
     }),
     ...Object.entries(multiFile).map(async ([name, meta]) => {
       const start = performance.now();
-      await execa("node", ["./bin/cli.js", `./examples/${name}${meta.entry.substring(1)}`, "-o", `./examples/${name}.ts`], { cwd });
+      await execa("./bin/cli.js", [`./examples/${name}${meta.entry.substring(1)}`, "-o", `./examples/${name}.ts`], { cwd });
       done++;
       console.log(`✔︎ [${done}/${allSchemas.length}] Updated ${name} (${Math.round(performance.now() - start)}ms)`); // eslint-disable-line no-console
     }),

packages/openapi-typescript/test/fixtures/yaml-merge.yaml

@@ -0,0 +1,41 @@
+openapi: "3.1.0"
+info:
+  title: Test
+  version: "1.0.0"
+x-error-response: &x-error-response
+  4XX:
+    description: Error response
+    content:
+      application/json:
+        schema:
+          $ref: '#/components/schemas/HTTPError'
+paths:
+  /admin/ping:
+    get:
+      summary: Ping pongs
+      operationId: AdminPing
+      responses:
+        "200":
+          description: OK
+          content:
+            text/plain:
+              schema:
+                type: string
+                example: pong
+        !!merge <<: *x-error-response
+      tags:
+        - admin
+components:
+  schemas:
+    HTTPError:
+      description: represents an error message response.
+      type: object
+      properties:
+        title:
+          type: string
+        detail:
+          type: string
+        status:
+          type: integer
+        error:
+          type: string

packages/openapi-typescript/test/yaml.test.ts

@@ -0,0 +1,66 @@
+import { execa } from "execa";
+
+const CMD = "./bin/cli.js";
+const cwd = new URL("../", import.meta.url);
+
+describe("YAML features", () => {
+  it("merge", async () => {
+    const result = await execa(CMD, ["./test/fixtures/yaml-merge.yaml"], { cwd });
+    expect(result.stdout).toMatchInlineSnapshot(`
+      "/**
+       * This file was auto-generated by openapi-typescript.
+       * Do not make direct changes to the file.
+       */
+
+
+      export interface paths {
+        \\"/admin/ping\\": {
+          /** Ping pongs */
+          get: operations[\\"AdminPing\\"];
+        };
+      }
+
+      export type webhooks = Record<string, never>;
+
+      export interface components {
+        schemas: {
+          /** @description represents an error message response. */
+          HTTPError: {
+            title?: string;
+            detail?: string;
+            status?: number;
+            error?: string;
+          };
+        };
+        responses: never;
+        parameters: never;
+        requestBodies: never;
+        headers: never;
+        pathItems: never;
+      }
+
+      export type external = Record<string, never>;
+
+      export interface operations {
+
+        /** Ping pongs */
+        AdminPing: {
+          responses: {
+            /** @description OK */
+            200: {
+              content: {
+                \\"text/plain\\": string;
+              };
+            };
+            /** @description Error response */
+            \\"4XX\\": {
+              content: {
+                \\"application/json\\": components[\\"schemas\\"][\\"HTTPError\\"];
+              };
+            };
+          };
+        };
+      }"
+    `);
+  });
+});