diff --git a/gulpfile.mjs b/gulpfile.mjs
index 211d4ae95a7a7..9385a4e8eaccb 100644
--- a/gulpfile.mjs
+++ b/gulpfile.mjs
@@ -41,7 +41,6 @@ import relative from "metalsmith-html-relative";
 import rename from "gulp-rename";
 import replace from "gulp-replace";
 import stream from "stream";
-import streamqueue from "streamqueue";
 import TerserPlugin from "terser-webpack-plugin";
 import Vinyl from "vinyl";
 import webpack2 from "webpack";
@@ -663,9 +662,8 @@ function getTempFile(prefix, suffix) {
   return filePath;
 }
 
-function createTestSource(testsName, { bot = false, xfaOnly = false } = {}) {
-  const source = stream.Readable({ objectMode: true });
-  source._read = function () {
+function runTests(testsName, { bot = false, xfaOnly = false } = {}) {
+  return new Promise((resolve, reject) => {
     console.log();
     console.log("### Running " + testsName + " tests");
 
@@ -699,8 +697,8 @@ function createTestSource(testsName, { bot = false, xfaOnly = false } = {}) {
         args.push("--integration");
         break;
       default:
-        this.emit("error", new Error("Unknown name: " + testsName));
-        return null;
+        reject(new Error(`Unknown tests name '${testsName}'`));
+        return;
     }
     if (bot) {
       args.push("--strictVerify");
@@ -715,13 +713,11 @@ function createTestSource(testsName, { bot = false, xfaOnly = false } = {}) {
     const testProcess = startNode(args, { cwd: TEST_DIR, stdio: "inherit" });
     testProcess.on("close", function (code) {
       if (code !== 0) {
-        throw new Error(`Running ${testsName} tests failed.`);
+        reject(new Error(`Running ${testsName} tests failed.`));
       }
-      source.push(null);
+      resolve();
     });
-    return undefined;
-  };
-  return source;
+  });
 }
 
 function makeRef(done, bot) {
@@ -1705,57 +1701,55 @@ function setTestEnv(done) {
 
 gulp.task(
   "test",
-  gulp.series(setTestEnv, "generic", "components", function runTest() {
-    return streamqueue(
-      { objectMode: true },
-      createTestSource("unit"),
-      createTestSource("browser"),
-      createTestSource("integration")
-    );
+  gulp.series(setTestEnv, "generic", "components", async function runTest() {
+    await runTests("unit");
+    await runTests("browser");
+    await runTests("integration");
   })
 );
 
 gulp.task(
   "bottest",
-  gulp.series(setTestEnv, "generic", "components", function runBotTest() {
-    return streamqueue(
-      { objectMode: true },
-      createTestSource("unit", { bot: true }),
-      createTestSource("browser", { bot: true }),
-      createTestSource("integration")
-    );
+  gulp.series(setTestEnv, "generic", "components", async function runBotTest() {
+    await runTests("unit", { bot: true });
+    await runTests("browser", { bot: true });
+    await runTests("integration");
   })
 );
 
 gulp.task(
   "xfatest",
-  gulp.series(setTestEnv, "generic", "components", function runXfaTest() {
-    return streamqueue(
-      { objectMode: true },
-      createTestSource("unit"),
-      createTestSource("browser", { xfaOnly: true }),
-      createTestSource("integration")
-    );
+  gulp.series(setTestEnv, "generic", "components", async function runXfaTest() {
+    await runTests("unit");
+    await runTests("browser", { xfaOnly: true });
+    await runTests("integration");
   })
 );
 
 gulp.task(
   "botxfatest",
-  gulp.series(setTestEnv, "generic", "components", function runBotXfaTest() {
-    return streamqueue(
-      { objectMode: true },
-      createTestSource("unit", { bot: true }),
-      createTestSource("browser", { bot: true, xfaOnly: true }),
-      createTestSource("integration")
-    );
-  })
+  gulp.series(
+    setTestEnv,
+    "generic",
+    "components",
+    async function runBotXfaTest() {
+      await runTests("unit", { bot: true });
+      await runTests("browser", { bot: true, xfaOnly: true });
+      await runTests("integration");
+    }
+  )
 );
 
 gulp.task(
   "browsertest",
-  gulp.series(setTestEnv, "generic", "components", function runBrowserTest() {
-    return createTestSource("browser");
-  })
+  gulp.series(
+    setTestEnv,
+    "generic",
+    "components",
+    async function runBrowserTest() {
+      await runTests("browser");
+    }
+  )
 );
 
 gulp.task(
@@ -1764,33 +1758,30 @@ gulp.task(
     setTestEnv,
     "generic",
     "components",
-    function runBotBrowserTest() {
-      return streamqueue(
-        { objectMode: true },
-        createTestSource("browser", { bot: true })
-      );
+    async function runBotBrowserTest() {
+      await runTests("browser", { bot: true });
     }
   )
 );
 
 gulp.task(
   "unittest",
-  gulp.series(setTestEnv, "generic", function runUnitTest() {
-    return createTestSource("unit");
+  gulp.series(setTestEnv, "generic", async function runUnitTest() {
+    await runTests("unit");
   })
 );
 
 gulp.task(
   "integrationtest",
-  gulp.series(setTestEnv, "generic", function runIntegrationTest() {
-    return createTestSource("integration");
+  gulp.series(setTestEnv, "generic", async function runIntegrationTest() {
+    await runTests("integration");
   })
 );
 
 gulp.task(
   "fonttest",
-  gulp.series(setTestEnv, function runFontTest() {
-    return createTestSource("font");
+  gulp.series(setTestEnv, async function runFontTest() {
+    await runTests("font");
   })
 );
 
diff --git a/package-lock.json b/package-lock.json
index 60019134a03ce..c945dbf04bbca 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -57,7 +57,6 @@
         "postcss-nesting": "^12.1.5",
         "prettier": "^3.3.3",
         "puppeteer": "^22.13.0",
-        "streamqueue": "^1.1.2",
         "stylelint": "^16.7.0",
         "stylelint-prettier": "^5.0.0",
         "terser-webpack-plugin": "^5.3.10",
@@ -8553,12 +8552,6 @@
         "node": ">=0.10.0"
       }
     },
-    "node_modules/isstream": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/isstream/-/isstream-0.1.2.tgz",
-      "integrity": "sha1-R+Y/evVa+m+S4VAOaQ64uFKcCZo=",
-      "dev": true
-    },
     "node_modules/istanbul-lib-coverage": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-3.2.2.tgz",
@@ -12403,19 +12396,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/streamqueue": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/streamqueue/-/streamqueue-1.1.2.tgz",
-      "integrity": "sha512-CHUpqa+1BM99z7clQz9W6L9ZW4eXRRQCR0H+utVAGGvNo2ePlJAFjhdK0IjunaBbY/gWKJawk5kpJeyz0EXxRA==",
-      "dev": true,
-      "dependencies": {
-        "isstream": "^0.1.2",
-        "readable-stream": "^2.3.3"
-      },
-      "engines": {
-        "node": ">=6.9.5"
-      }
-    },
     "node_modules/streamx": {
       "version": "2.18.0",
       "resolved": "https://registry.npmjs.org/streamx/-/streamx-2.18.0.tgz",
diff --git a/package.json b/package.json
index ee056e60c2071..a6b5572db235f 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,6 @@
     "postcss-nesting": "^12.1.5",
     "prettier": "^3.3.3",
     "puppeteer": "^22.13.0",
-    "streamqueue": "^1.1.2",
     "stylelint": "^16.7.0",
     "stylelint-prettier": "^5.0.0",
     "terser-webpack-plugin": "^5.3.10",