Define middle ground between not generated and not tested

node/testdata/common.ts

@@ -1,3 +1,5 @@
+import { join } from "../../path/mod.ts";
+
 /**
  * The test suite matches the folders inside the `test` folder inside the
  * node repo
@@ -9,15 +11,35 @@ type TestSuites = Record<string, string[]>;
 
 interface Config {
   nodeVersion: string;
-  /** Ignored files won't be run, deleted or updated by the update script */
+  /** Ignored files won't regenerated by the update script */
   ignore: TestSuites;
+  /**
+   * The files that will be run by the test suite
+   * 
+   * The files to be generated with the update script must be listed here as well,
+   * but they won't be regenerated if they are listed in the `ignore` configuration
+   * */
   tests: TestSuites;
   suitesFolder: string;
   versionsFolder: string;
 }
 
-export async function getConfig(): Promise<Config> {
-  return JSON.parse(
-    await Deno.readTextFile(new URL("./config.json", import.meta.url)),
-  );
-}
+export const config: Config = JSON.parse(
+  await Deno.readTextFile(new URL("./config.json", import.meta.url)),
+);
+
+export const ignoreList = Object.entries(config.ignore).reduce(
+  (total: RegExp[], [suite, paths]) => {
+    paths.forEach((path) => total.push(new RegExp(join(suite, path))));
+    return total;
+  },
+  [],
+);
+
+export const testList = Object.entries(config.tests).reduce(
+  (total: RegExp[], [suite, paths]) => {
+    paths.forEach((path) => total.push(new RegExp(join(suite, path))));
+    return total;
+  },
+  [],
+);

node/testdata/runner.ts

@@ -1,6 +1,6 @@
 import { walk } from "../../fs/walk.ts";
-import { dirname, fromFileUrl, join } from "../../path/mod.ts";
-import { getConfig } from "./common.ts";
+import { dirname, fromFileUrl } from "../../path/mod.ts";
+import { config, testList } from "./common.ts";
 
 /**
  * This script will run the test files specified in the configuration file
@@ -11,19 +11,9 @@ import { getConfig } from "./common.ts";
  * Usage: `deno run --allow-run --allow-read runner.ts`
  */
 
-const config = await getConfig();
-
-const match = Object.entries(config.tests).reduce(
-  (total: RegExp[], [suite, paths]) => {
-    paths.forEach((path) => total.push(new RegExp(join(suite, path))));
-    return total;
-  },
-  [],
-);
-
 const dir = walk(fromFileUrl(new URL(config.suitesFolder, import.meta.url)), {
   includeDirs: false,
-  match,
+  match: testList,
 });
 
 for await (const file of dir) {

node/testdata/setup.ts

@@ -3,7 +3,7 @@ import { Untar } from "../../archive/tar.ts";
 import { walk } from "../../fs/walk.ts";
 import { basename, fromFileUrl, join, resolve } from "../../path/mod.ts";
 import { ensureFile } from "../../fs/ensure_file.ts";
-import { getConfig } from "./common.ts";
+import { config, ignoreList } from "./common.ts";
 
 /**
  * This script will download and extract the test files specified in the
@@ -18,8 +18,6 @@ import { getConfig } from "./common.ts";
 const NODE_URL = "https://nodejs.org/dist/vNODE_VERSION";
 const NODE_FILE = "node-vNODE_VERSION.tar.gz";
 
-const config = await getConfig();
-
 /** URL for the download */
 const url = `${NODE_URL}/${NODE_FILE}`.replaceAll(
   "NODE_VERSION",
@@ -70,19 +68,11 @@ async function downloadFile(url: string, path: string) {
 async function clearTests() {
   console.log("Cleaning up previous tests");
 
-  const ignore = Object.entries(config.ignore).reduce(
-    (total: RegExp[], [suite, paths]) => {
-      paths.forEach((path) => total.push(new RegExp(join(suite, path))));
-      return total;
-    },
-    [],
-  );
-
   const files = walk(
     (fromFileUrl(new URL(config.suitesFolder, import.meta.url))),
     {
       includeDirs: false,
-      skip: ignore,
+      skip: ignoreList,
     },
   );
 
@@ -91,7 +81,20 @@ async function clearTests() {
   }
 }
 
+/**
+ * This will iterate over the ignore and test lists defined in the
+ * configuration file
+ * 
+ * If it were to be found in the ignore list or not found in the test list, the
+ * function will return undefined, meaning the file won't be regenerated
+ */
 function getRequestedFileSuite(file: string): string | undefined {
+  for (const regex of ignoreList) {
+    if (regex.test(file)) {
+      return;
+    }
+  }
+
   for (const suite in config.tests) {
     for (const regex of config.tests[suite]) {
       if (new RegExp(regex).test(file)) {