diff --git a/lib/internal/test_runner/test.js b/lib/internal/test_runner/test.js
index d043d507a3d6ce..99872c1e1d773a 100644
--- a/lib/internal/test_runner/test.js
+++ b/lib/internal/test_runner/test.js
@@ -45,7 +45,6 @@ const {
   createDeferredCallback,
   countCompletedTest,
   isTestFailureError,
-  parseCommandLine,
 } = require('internal/test_runner/utils');
 const {
   createDeferredPromise,
@@ -79,14 +78,6 @@ const kHookNames = ObjectSeal(['before', 'after', 'beforeEach', 'afterEach']);
 const kUnwrapErrors = new SafeSet()
   .add(kTestCodeFailure).add(kHookFailure)
   .add('uncaughtException').add('unhandledRejection');
-const {
-  forceExit,
-  sourceMaps,
-  testNamePatterns,
-  testSkipPatterns,
-  only: testOnlyFlag,
-  updateSnapshots,
-} = parseCommandLine();
 let kResistStopPropagation;
 let assertObj;
 let findSourceMap;
@@ -132,7 +123,7 @@ function lazyAssertObject(harness) {
     const { getOptionValue } = require('internal/options');
     if (getOptionValue('--experimental-test-snapshots')) {
       const { SnapshotManager } = require('internal/test_runner/snapshot');
-      harness.snapshotManager = new SnapshotManager(updateSnapshots);
+      harness.snapshotManager = new SnapshotManager(harness.config.updateSnapshots);
       assertObj.set('snapshot', harness.snapshotManager.createAssert());
     }
   }
@@ -406,16 +397,17 @@ class Test extends AsyncResource {
     this.filtered = false;
 
     if (parent === null) {
+      this.root = this;
+      this.harness = options.harness;
+      this.config = this.harness.config;
       this.concurrency = 1;
       this.nesting = 0;
-      this.only = testOnlyFlag;
+      this.only = this.config.only;
       this.reporter = new TestsStream();
       this.runOnlySubtests = this.only;
       this.childNumber = 0;
       this.timeout = kDefaultTimeout;
       this.entryFile = entryFile;
-      this.root = this;
-      this.harness = options.harness;
       this.hooks = {
         __proto__: null,
         before: [],
@@ -428,6 +420,9 @@ class Test extends AsyncResource {
       const nesting = parent.parent === null ? parent.nesting :
         parent.nesting + 1;
 
+      this.root = parent.root;
+      this.harness = null;
+      this.config = this.root.harness.config;
       this.concurrency = parent.concurrency;
       this.nesting = nesting;
       this.only = only ?? (parent.only && !parent.runOnlySubtests);
@@ -436,8 +431,6 @@ class Test extends AsyncResource {
       this.childNumber = parent.subtests.length + 1;
       this.timeout = parent.timeout;
       this.entryFile = parent.entryFile;
-      this.root = parent.root;
-      this.harness = null;
       this.hooks = {
         __proto__: null,
         before: [],
@@ -452,7 +445,7 @@ class Test extends AsyncResource {
         this.parent.filteredSubtestCount++;
       }
 
-      if (testOnlyFlag && only === false) {
+      if (this.config.only && only === false) {
         fn = noop;
       }
     }
@@ -522,7 +515,7 @@ class Test extends AsyncResource {
     this.waitingOn = 0;
     this.finished = false;
 
-    if (!testOnlyFlag && (only || this.parent?.runOnlySubtests)) {
+    if (!this.config.only && (only || this.parent?.runOnlySubtests)) {
       const warning =
         "'only' and 'runOnly' require the --test-only command-line option.";
       this.diagnostic(warning);
@@ -538,7 +531,7 @@ class Test extends AsyncResource {
         file: loc[2],
       };
 
-      if (sourceMaps === true) {
+      if (this.config.sourceMaps === true) {
         const map = lazyFindSourceMap(this.loc.file);
         const entry = map?.findEntry(this.loc.line - 1, this.loc.column - 1);
 
@@ -556,7 +549,9 @@ class Test extends AsyncResource {
   }
 
   willBeFiltered() {
-    if (testOnlyFlag && !this.only) return true;
+    if (this.config.only && !this.only) return true;
+
+    const { testNamePatterns, testSkipPatterns } = this.config;
 
     if (testNamePatterns && !testMatchesPattern(this, testNamePatterns)) {
       return true;
@@ -920,7 +915,7 @@ class Test extends AsyncResource {
       // This helps catch any asynchronous activity that occurs after the tests
       // have finished executing.
       this.postRun();
-    } else if (forceExit) {
+    } else if (this.config.forceExit) {
       // This is the root test, and all known tests and hooks have finished
       // executing. If the user wants to force exit the process regardless of
       // any remaining ref'ed handles, then do that now. It is theoretically
@@ -1163,11 +1158,13 @@ class Suite extends Test {
   constructor(options) {
     super(options);
 
-    if (testNamePatterns !== null && testSkipPatterns !== null && !options.skip) {
+    if (this.config.testNamePatterns !== null &&
+        this.config.testSkipPatterns !== null &&
+        !options.skip) {
       this.fn = options.fn || this.fn;
       this.skipped = false;
     }
-    this.runOnlySubtests = testOnlyFlag;
+    this.runOnlySubtests = this.config.only;
 
     try {
       const { ctx, args } = this.getRunArgs();
@@ -1198,9 +1195,9 @@ class Suite extends Test {
       this.filtered = false;
       this.parent.filteredSubtestCount--;
     } else if (
-      testOnlyFlag &&
-      testNamePatterns == null &&
-      testSkipPatterns == null &&
+      this.config.only &&
+      this.config.testNamePatterns == null &&
+      this.config.testSkipPatterns == null &&
       this.filteredSubtestCount === this.subtests.length
     ) {
       // If no subtests are marked as "only", run them all
diff --git a/test/parallel/test-runner-v8-deserializer.mjs b/test/parallel/test-runner-v8-deserializer.mjs
index 9b4447d5a24291..42a8a84d1fe09f 100644
--- a/test/parallel/test-runner-v8-deserializer.mjs
+++ b/test/parallel/test-runner-v8-deserializer.mjs
@@ -26,7 +26,10 @@ describe('v8 deserializer', () => {
   let reported;
   beforeEach(() => {
     reported = [];
-    fileTest = new runner.FileTest({ name: 'filetest' });
+    fileTest = new runner.FileTest({
+      name: 'filetest',
+      harness: { config: {} },
+    });
     fileTest.reporter.on('data', (data) => reported.push(data));
     assert(fileTest.isClearToSend());
   });