benchmark: remove internal source map caching

Author: miguelmarcondesf

benchmark/source_map/source-map-cache.js

@@ -2,7 +2,6 @@
 
 const common = require('../common.js');
 const assert = require('assert');
-const fs = require('fs');
 const path = require('path');
 
 const options = {
@@ -22,24 +21,28 @@ const bench = common.createBenchmark(
 );
 
 function main({ operation, n }) {
-  const {
-    maybeCacheSourceMap,
-  } = require('internal/source_map/source_map_cache');
   const Module = require('node:module');
 
   Module.setSourceMapsSupport(true);
   const validFileName = path.resolve(
     __dirname,
     '../../test/fixtures/test-runner/source-maps/line-lengths/index.js',
   );
-  const validMapFile = path.resolve(validFileName + '.map');
-  const validFileContent = fs.readFileSync(validFileName, 'utf8');
-  const fakeModule = { filename: validFileName };
+
+  const sourceWithGeneratedSourceMap = `
+  console.log("Hello from generated source");
+  function test() {
+    return 42;
+  }
+  //# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3QuanMiXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IkFBQUE7QUFDQTtBQUNBO0FBQ0EiLCJmaWxlIjoidGVzdC5qcyIsInNvdXJjZXNDb250ZW50IjpbImNvbnNvbGUubG9nKFwiSGVsbG8gZnJvbSBnZW5lcmF0ZWQgc291cmNlXCIpO1xuZnVuY3Rpb24gdGVzdCgpIHtcbiAgcmV0dXJuIDQyO1xufSJdfQ==
+  //# sourceURL=test-generated-source.js
+  `;
+  const expectedUrl = `file://${path.resolve('test-generated-source.js')}`;
 
   let sourceMap;
   switch (operation) {
     case 'findSourceMap-valid':
-      maybeCacheSourceMap(validFileName, validFileContent, fakeModule, false, undefined, validMapFile);
+      require(validFileName);
       bench.start();
 
       for (let i = 0; i < n; i++) {
@@ -49,18 +52,11 @@ function main({ operation, n }) {
       break;
 
     case 'findSourceMap-generated-source':
-      maybeCacheSourceMap(
-        validFileName,
-        validFileContent,
-        fakeModule,
-        true,
-        validFileName,
-        validMapFile,
-      );
-      bench.start();
+      eval(sourceWithGeneratedSourceMap);
 
+      bench.start();
       for (let i = 0; i < n; i++) {
-        sourceMap = Module.findSourceMap(validFileName);
+        sourceMap = Module.findSourceMap(expectedUrl);
       }
       bench.end(n);
       break;