feat: add codspeed integration metadata dump

Author: art049

packages/benchmark.js/tests/unit.test.ts

@@ -5,7 +5,10 @@ import Benchmark from "benchmark";
 import { withCodSpeed } from "..";
 import type { Measurement } from "@codspeed/core";
 
-jest.mock("@codspeed/core", () => mockCore);
+jest.mock("@codspeed/core", () => ({
+  ...jest.requireActual("@codspeed/core"),
+  measurement: mockCore,
+}));
 
 beforeEach(() => {
   mockReset(mockCore);

packages/core/rollup.config.ts

@@ -1,8 +1,11 @@
+import resolve from "@rollup/plugin-node-resolve";
+import json from "@rollup/plugin-json";
+import commonjs from "@rollup/plugin-commonjs";
+import esbuild from "rollup-plugin-esbuild";
 import { defineConfig } from "rollup";
-import { declarationsPlugin, jsPlugins } from "../../rollup.options";
+import { declarationsPlugin } from "../../rollup.options";
 
 import pkg from "./package.json" assert { type: "json" };
-
 const entrypoint = "src/index.ts";
 
 export default defineConfig([
@@ -27,6 +30,15 @@ export default defineConfig([
       },
       { file: pkg.module, format: "es", sourcemap: true },
     ],
-    plugins: jsPlugins,
+    plugins: [
+      json(),
+      esbuild({
+        define: {
+          __VERSION__: '"' + pkg.version + '"',
+        },
+      }),
+      commonjs(),
+      resolve(),
+    ],
   },
 ]);

packages/core/src/index.ts

@@ -1,4 +1,5 @@
 import path from "path";
+declare const __VERSION__: string;
 
 /* eslint-disable @typescript-eslint/no-empty-function */
 export interface Measurement {
@@ -27,10 +28,10 @@ try {
   };
 }
 export const measurement = m;
-
 export const initCore = () => {
   // eslint-disable-next-line @typescript-eslint/no-var-requires
   require("v8").setFlagsFromString("--allow-natives-syntax");
+  measurement.stopInstrumentation(`Metadata: codspeed-node ${__VERSION__}`);
 };
 
 export const optimizeFunction = async (fn: CallableFunction) => {

packages/core/tests/unit.test.ts

@@ -7,7 +7,7 @@ beforeEach(() => {
 
 describe("with bindings", () => {
   it("should be bound", () => {
-    const measurement = require("..") as Measurement;
+    const measurement = require("..").measurement as Measurement;
     expect(measurement.isBound).toBe(true);
   });
 });
@@ -21,7 +21,7 @@ describe("without bindings", () => {
     process.env = initialEnv;
   });
   it("should not be bound", () => {
-    const measurement = require("..") as Measurement;
+    const measurement = require("..").measurement as Measurement;
     expect(measurement.isBound).toBe(false);
   });
 });

packages/tinybench/tests/unit.test.ts

@@ -5,7 +5,10 @@ import { Bench } from "tinybench";
 import { withCodSpeed } from "..";
 import type { Measurement } from "@codspeed/core";
 
-jest.mock("@codspeed/core", () => mockCore);
+jest.mock("@codspeed/core", () => ({
+  ...jest.requireActual("@codspeed/core"),
+  measurement: mockCore,
+}));
 
 beforeEach(() => {
   mockReset(mockCore);