diff --git a/lib/internal/test_runner/tap_parser.js b/lib/internal/test_runner/tap_parser.js
index 6ba3afd..a309bff 100644
--- a/lib/internal/test_runner/tap_parser.js
+++ b/lib/internal/test_runner/tap_parser.js
@@ -1,29 +1,31 @@
-// https://github.com/nodejs/node/blob/f8ce9117b19702487eb600493d941f7876e00e01/lib/internal/test_runner/tap_parser.js
+// https://github.com/nodejs/node/blob/7a42a206ac37d95060640b4812aaef32535937e1/lib/internal/test_runner/tap_parser.js
 'use strict'
 
-const Transform = require('stream').Transform
-const { TapLexer, TokenKind } = require('#internal/test_runner/tap_lexer')
-const { TapChecker } = require('#internal/test_runner/tap_checker')
-const {
-  codes: { ERR_TAP_VALIDATION_ERROR, ERR_TAP_PARSER_ERROR }
-} = require('#internal/errors')
-const { kEmptyObject } = require('#internal/util')
 const {
   ArrayPrototypeFilter,
   ArrayPrototypeForEach,
+  ArrayPrototypeIncludes,
   ArrayPrototypeJoin,
   ArrayPrototypeMap,
+  ArrayPrototypePop,
   ArrayPrototypePush,
-  ArrayPrototypeIncludes,
-  ArrayPrototypeSplice,
   Boolean,
   Number,
   RegExpPrototypeExec,
-  RegExpPrototypeSymbolReplace,
   String,
-  StringPrototypeTrim,
-  StringPrototypeSplit
+  StringPrototypeEndsWith,
+  StringPrototypeReplaceAll,
+  StringPrototypeSlice,
+  StringPrototypeSplit,
+  StringPrototypeTrim
 } = require('#internal/per_context/primordials')
+const Transform = require('stream').Transform
+const { TapLexer, TokenKind } = require('#internal/test_runner/tap_lexer')
+const { TapChecker } = require('#internal/test_runner/tap_checker')
+const {
+  codes: { ERR_TAP_VALIDATION_ERROR, ERR_TAP_PARSER_ERROR }
+} = require('#internal/errors')
+const { kEmptyObject } = require('#internal/util')
 /**
  *
  * TAP14 specifications
@@ -150,22 +152,26 @@ class TapParser extends Transform {
   processChunk (chunk) {
     const str = this.#lastLine + chunk.toString('utf8')
     const lines = StringPrototypeSplit(str, '\n')
-    this.#lastLine = ArrayPrototypeSplice(lines, lines.length - 1, 1)[0]
+    this.#lastLine = ArrayPrototypePop(lines)
 
-    let chunkAsString = lines.join('\n')
+    let chunkAsString = ArrayPrototypeJoin(lines, '\n')
     // Special case where chunk is emitted by a child process
-    chunkAsString = RegExpPrototypeSymbolReplace(
-      /\[out\] /g,
+    chunkAsString = StringPrototypeReplaceAll(
       chunkAsString,
+      '[out] ',
       ''
     )
-    chunkAsString = RegExpPrototypeSymbolReplace(
-      /\[err\] /g,
+    chunkAsString = StringPrototypeReplaceAll(
       chunkAsString,
+      '[err] ',
       ''
     )
-    chunkAsString = RegExpPrototypeSymbolReplace(/\n$/, chunkAsString, '')
-    chunkAsString = RegExpPrototypeSymbolReplace(/EOF$/, chunkAsString, '')
+    if (StringPrototypeEndsWith(chunkAsString, '\n')) {
+      chunkAsString = StringPrototypeSlice(chunkAsString, 0, -1)
+    }
+    if (StringPrototypeEndsWith(chunkAsString, 'EOF')) {
+      chunkAsString = StringPrototypeSlice(chunkAsString, 0, -3)
+    }
 
     return chunkAsString
   }
@@ -372,7 +378,7 @@ class TapParser extends Transform {
   }
 
   #addDiagnosticsToLastTestPoint (currentNode) {
-    const lastTestPoint = this.#bufferedTestPoints[this.#bufferedTestPoints.length - 1]
+    const { length, [length - 1]: lastTestPoint } = this.#bufferedTestPoints
 
     // Diagnostic nodes are only added to Test points of the same nesting level
     if (lastTestPoint && lastTestPoint.nesting === currentNode.nesting) {
@@ -798,7 +804,7 @@ class TapParser extends Transform {
 
     const commentContent = this.#peek()
     if (commentContent) {
-      if (/^Subtest:/i.test(commentContent.value)) {
+      if (RegExpPrototypeExec(/^Subtest:/i, commentContent.value) !== null) {
         this.#next() // skip subtest keyword
         const name = StringPrototypeTrim(this.#readNextLiterals())
         const node = {
@@ -899,7 +905,7 @@ class TapParser extends Transform {
   // YAMLLine := "  " (YAML)* "\n"
   #YAMLLine () {
     const yamlLiteral = this.#readNextLiterals()
-    const { 0: key, 1: value } = StringPrototypeSplit(yamlLiteral, ':')
+    const { 0: key, 1: value } = StringPrototypeSplit(yamlLiteral, ':', 2)
 
     // Note that this.#lastTestPointDetails has been cleared when we encounter a YAML start marker
 
@@ -961,7 +967,7 @@ class TapParser extends Transform {
 
       // In some cases, pragma key can be followed by a comma separator,
       // so we need to remove it
-      pragmaKey = RegExpPrototypeSymbolReplace(/,/g, pragmaKey, '')
+      pragmaKey = StringPrototypeReplaceAll(pragmaKey, ',', '')
 
       pragmas[pragmaKey] = isEnabled
       nextToken = this.#peek()