diff --git a/.gitignore b/.gitignore
index 37bdebb44..9a53b04f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,6 @@
 /test/fixture/main-hook/symlink/symlink.js
 /test/fixture/main-hook/symlink/symlink.mjs
 /test/fixture/scenario/ava-nyc-tsc/*.js
+
+/test/_external/test262/.repo
+/test/_external/test262/.test
diff --git a/.travis.yml b/.travis.yml
index aadc2ec7d..1a0802719 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ os:
 node_js:
   - 10
   - 8
-  - 6.2.0
+  - 6
 
 cache:
   directories:
diff --git a/package-lock.json b/package-lock.json
index e47e34b67..66ea23369 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14636,6 +14636,16 @@
         }
       }
     },
+    "test262-parser": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/test262-parser/-/test262-parser-2.0.7.tgz",
+      "integrity": "sha1-cztGv3dZ50fq40tbFNajyNIIKt0=",
+      "dev": true,
+      "requires": {
+        "js-yaml": "^3.2.1",
+        "through": "^2.3.4"
+      }
+    },
     "text-table": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
diff --git a/package.json b/package.json
index 8e9bf007f..8128ea527 100644
--- a/package.json
+++ b/package.json
@@ -79,6 +79,7 @@
     "sleep": "^5.2.3",
     "sqreen": "^1.22.0",
     "strip-ansi": "^4.0.0",
+    "test262-parser": "^2.0.7",
     "trash": "^4.3.0",
     "typescript": "^3.0.1",
     "uglify-es": "^3.3.10",
diff --git a/script/test.js b/script/test.js
index 08039192d..e72bf3d60 100644
--- a/script/test.js
+++ b/script/test.js
@@ -6,6 +6,7 @@ const ignorePaths = require("./ignore-paths.js")
 const path = require("path")
 const trash = require("./trash.js")
 const uglify = require("uglify-es").minify
+const bootstrapTest262 = require("./test262/bootstrap.js")
 
 const argv = require("yargs")
   .boolean("prod")
@@ -114,5 +115,6 @@ Promise
     cleanRepo(),
     setupNode()
   ])
+  .then(bootstrapTest262)
   .then(() => runTests())
   .then(() => runTests(true))
diff --git a/script/test262/bootstrap.js b/script/test262/bootstrap.js
new file mode 100644
index 000000000..891e1dc4c
--- /dev/null
+++ b/script/test262/bootstrap.js
@@ -0,0 +1,18 @@
+"use strict"
+
+const clone = require("./clone.js")
+const copy = require("./copy.js")
+
+function bootstrap() {
+  return clone()
+    .then(copy)
+    // TODO remove:
+    // temporary measure and can be safily removed once
+    // the `dynamic import` test PR is merged into test262
+    // -- BEGIN
+    // .then(clone.dynamicImport)
+    // .then(copy.dynamicImport)
+    // -- END
+}
+
+module.exports = bootstrap
diff --git a/script/test262/clone.js b/script/test262/clone.js
new file mode 100644
index 000000000..c26cfc02f
--- /dev/null
+++ b/script/test262/clone.js
@@ -0,0 +1,46 @@
+"use strict"
+
+const execa = require("execa")
+const trash = require("trash")
+const { resolve } = require( "path")
+
+const rootPath = resolve(".")
+const test262Path = resolve(rootPath, "test/_external/test262")
+const test262RepoPath = resolve(test262Path, ".repo")
+// const test262RepoGitPath = resolve(test262RepoPath, ".git")
+
+function run(cwd, file, args) {
+  return execa(file, args, {
+    cwd,
+    reject: false
+  })
+}
+
+function clone() {
+  return trash(test262RepoPath)
+    .then(() =>
+      run(test262Path, "git", ["--version"])
+    )
+    .then(() =>
+      run(test262Path, "git", ["clone", "--depth", "1", "https://github.com/tc39/test262.git", ".repo"])
+    )
+}
+
+// TODO remove:
+// this is just a temporary measure and can be safily removed once
+// the `dynamic import` test PR is merged into test262
+// -- BEGIN
+clone.dynamicImport = function () {
+  return run(
+      test262RepoPath, "git", ["fetch", "origin", "--depth", "1", "pull/1588/head:dynamic-import"]
+    )
+    .then(() =>
+      run(test262RepoPath, "git", ["checkout", "dynamic-import"])
+    )
+    // .then(() =>
+    //   trash(test262RepoGitPath)
+    // )
+// -- END
+}
+
+module.exports = clone
diff --git a/script/test262/copy.js b/script/test262/copy.js
new file mode 100644
index 000000000..6bf8b2a30
--- /dev/null
+++ b/script/test262/copy.js
@@ -0,0 +1,46 @@
+"use strict"
+
+const trash = require("trash")
+const { resolve } = require("path")
+const { copy } = require("fs-extra")
+
+const rootPath = resolve(".")
+const test262RepoPath = resolve(rootPath, "test/_external/test262/.repo")
+const testPath = resolve(rootPath, "test/_external/test262/.test")
+
+const testDirs = [
+  "test/language/export",
+  "test/language/import",
+  "test/language/module-code",
+  "harness"
+]
+
+function copyTests() {
+  return trash(testPath)
+    .then(() =>
+      Promise.all(
+        testDirs.map((testDir) =>
+          copy(resolve(test262RepoPath, testDir), resolve(testPath, testDir))
+        )
+      )
+    )
+}
+
+// TODO remove:
+// temporary measure and can be safily removed once
+// the `dynamic import` test PR is merged into test262
+// -- BEGIN
+const testDirsDynamicImport = [
+  "test/language/module-code/dynamic-import"
+]
+
+copyTests.dynamicImport = function () {
+  return Promise.all(
+    testDirsDynamicImport.map((testDirDynamicImport) =>
+      copy(resolve(test262RepoPath, testDirDynamicImport), resolve(testPath, testDirDynamicImport))
+    )
+  )
+}
+// -- END
+
+module.exports = copyTests
diff --git a/script/test262/files.js b/script/test262/files.js
new file mode 100644
index 000000000..7b809edee
--- /dev/null
+++ b/script/test262/files.js
@@ -0,0 +1,32 @@
+"use strict"
+
+const globby = require("globby")
+const { resolve } = require("path")
+
+const testPath = resolve(__dirname, "../../test/_external/test262/.test")
+
+exports.getTestFiles = function getTestFiles() {
+  return globby(
+    [
+      "test/language/export/**/*.js",
+      "test/language/import/**/*.js",
+      "test/language/module-code/**/*.js"
+    ],
+    {
+      absolute: true,
+      cwd: testPath
+    }
+  )
+}
+
+exports.getHarnessFiles = function getHarnessFiles() {
+  return globby(
+    [
+      "harness/*.js"
+    ],
+    {
+      absolute: true,
+      cwd: testPath
+    }
+  )
+}
diff --git a/test/_external/test262/context.js b/test/_external/test262/context.js
new file mode 100644
index 000000000..d14876ed1
--- /dev/null
+++ b/test/_external/test262/context.js
@@ -0,0 +1,44 @@
+import { createContext, Script } from "vm"
+import { basename, resolve } from "path"
+import test262Parser from "test262-parser"
+import fs from "fs-extra"
+import globby from "globby"
+import { stdout } from "process"
+
+// TODO:
+const testPath = resolve("../test/_external/test262/.test")
+
+const harnessFiles = [
+  "assert.js",
+  "sta.js",
+  "doneprintHandle.js",
+  "fnGlobalObject.js"
+]
+
+function getHarnessFiles() {
+  return globby.sync(
+    [
+      "harness/*.js"
+    ],
+    {
+      absolute: true,
+      cwd: testPath
+    }
+  )
+}
+
+const sandbox = createContext(global)
+
+export default function harnessContext() {
+  getHarnessFiles()
+    .filter((file) =>
+      harnessFiles.includes(basename(file))
+    )
+    .map((filename) =>
+      fs.readFileSync(filename, "utf-8")
+    )
+    .forEach((rawHarness) => {
+      const { contents } = test262Parser.parseFile(rawHarness)
+      new Script(contents).runInContext(sandbox)
+    })
+}
diff --git a/test/_external/test262/index.js b/test/_external/test262/index.js
new file mode 100644
index 000000000..6d24dc75c
--- /dev/null
+++ b/test/_external/test262/index.js
@@ -0,0 +1,182 @@
+import assert from "assert"
+import execa from "execa"
+import globby from "globby"
+import { basename, resolve, sep } from "path"
+import fs from "fs-extra"
+import test262Parser from "test262-parser"
+
+const { execArgv, execPath, versions } = process
+
+const testPath = resolve(".")
+const test262Path = resolve(testPath, "_external/test262/.test")
+
+const isHarmony = execArgv.includes("--harmony")
+const isChakra = Reflect.has(versions, "chakracore")
+
+function node(args, env) {
+  return execa(execPath, args, {
+    cwd: testPath,
+    env,
+    reject: false
+  })
+}
+
+const nodeArgs = []
+
+if (isHarmony) {
+  nodeArgs.push("--harmony")
+}
+
+function runMain(filename, env, args) {
+  return node([...nodeArgs, "-r", "../", filename, ...args], env)
+}
+
+const test262Tests = globby.sync(
+  [
+    "test/language/export/**/*.js",
+    "test/language/import/**/*.js",
+    "test/language/module-code/**/*.js",
+    "!**/*_FIXTURE.js"
+  ],
+  {
+    absolute: true,
+    cwd: test262Path,
+    // https://github.com/sindresorhus/globby/issues/38
+    transform: (entry) => sep === "\\" ? entry.replace(/\//g, "\\") : entry
+  }
+)
+
+const skiplist = new Map()
+
+function parseTest(filepath) {
+  const rawTest = fs.readFileSync(filepath, "utf-8")
+
+  const {
+    attrs: {
+      description,
+      negative,
+      flags
+    } } = test262Parser.parseFile(rawTest)
+
+  return {
+    description,
+    isAsync: flags && flags.async,
+    errorType: negative && negative.type
+  }
+}
+
+function loadSkiplist() {
+  const content = fs.readFileSync(resolve(test262Path, "../skiplist"), "utf-8")
+
+  content
+    .split("\n")
+    .map((line) => line.trim())
+    .filter((line) => line !== "")
+    .reduce((comment, line) => {
+      if (line.startsWith("#")) {
+        if (comment) {
+          throw new Error(
+            `The skiplist contains multiple comments in consecutive rows: "${comment}" and "${line}". This is not allowed.`
+          )
+        }
+
+        return line
+      }
+
+      if (! comment) {
+        throw new Error(
+          `A reason for skipping is required! None was given for: "${line}".`
+        )
+      }
+
+      // @+harmony
+      const flag = comment.match(/@[+-][a-z]*/g)
+
+      const skiplistFlag = flag ? flag[0].replace("@", "") : ""
+
+      const fullPath = resolve(test262Path, line)
+
+      if (isSkiplisted(fullPath)) {
+        throw new Error(
+          `Same entry in skiplist already exists for: "${line}".`
+        )
+      }
+
+      comment = comment.slice(1).trimLeft()
+
+      skiplist.set(fullPath, {
+        comment,
+        skiplistFlag
+      })
+
+      return null
+    }, null)
+}
+
+loadSkiplist()
+
+function isSkiplisted(test) {
+  // return skiplist.has(test)
+  const item = skiplist.get(test)
+
+  if (! item) {
+    return false
+  }
+
+  if (isHarmony && item.skiplistFlag === "+harmony") {
+    return false
+  }
+
+  if (! isChakra && item.skiplistFlag === "-chakra") {
+    return false
+  }
+
+  return true
+}
+
+function skiplistReason(test) {
+  return skiplist.get(test).comment
+}
+
+const test262Error = "Test262: This statement should not be evaluated."
+
+describe.only("test262 module tests", function () {
+  this.timeout(0)
+
+  test262Tests.forEach(function (test262TestPath, index) {
+    const { description } = parseTest(test262TestPath)
+
+    const skip = isSkiplisted(test262TestPath)
+
+    const skipReason = skip ? `| ${skiplistReason(test262TestPath)}` : ""
+
+    const testfunc = skip ? it.skip : it
+
+    const filename = basename(test262TestPath)
+
+    const ESM_OPTIONS = JSON.stringify({ cjs: false, mode: "all" })
+
+    testfunc(`[${index}] ${description} (${filename}) ${skipReason}`, function () {
+
+      const { isAsync, errorType } = parseTest(test262TestPath)
+
+      return runMain(resolve(test262Path, "../wrapper.js"), { ESM_OPTIONS }, [test262TestPath, isAsync])
+        .then((out) => {
+          const { stdout, stderr } = out
+
+          if (stdout) {
+            const { name } = JSON.parse(stdout)
+
+            // possible known "supported" test262 constructors:
+            // SyntaxError, Test262Error, ReferenceError, TypeError
+            assert.strictEqual(errorType, name)
+          }
+
+          if (stderr) {
+            console.log("stderr ==>", stderr)
+            assert.fail("possible test262 Error")
+          }
+        })
+    })
+  })
+})
diff --git a/test/_external/test262/skiplist b/test/_external/test262/skiplist
new file mode 100644
index 000000000..fa98702af
--- /dev/null
+++ b/test/_external/test262/skiplist
@@ -0,0 +1,180 @@
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/eval-rqstd-once.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/eval-rqstd-order.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/eval-self-once.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/instn-once.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/instn-star-as-props-dflt-skip.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/instn-star-props-nrml.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/namespace/internals/get-nested-namespace-dflt-skip.js
+
+# NOT YET SUPPORTED 🚧 (export * as ns from "mod")
+test/language/module-code/namespace/internals/get-nested-namespace-props-nrml.js
+
+
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-iee-bndng-fun.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-iee-bndng-gen.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-iee-bndng-var.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-iee-star-cycle.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-iee-trlng-comma.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-named-bndng-dflt-named.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-named-bndng-trlng-comma.js
+
+# CONFIRMED BUG 🐛 (instantiation phase)
+test/language/module-code/instn-named-bndng-var.js
+
+
+
+# CONFIRMED BUG 🐛 (cycle import)
+test/language/module-code/instn-iee-iee-cycle.js
+
+# NEEDS INVESTIGATION 🐛 (cycle import)
+test/language/module-code/instn-named-iee-cycle.js
+
+# NEEDS INVESTIGATION 🐛 (cycle import)
+test/language/module-code/instn-star-iee-cycle.js
+
+
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-1.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-2.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-3.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-4.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-5.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-6.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-7.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-not-valid-earlyerr-module-8.js
+
+# PRIVATE CLASS FIELD 🔥 @+harmony
+test/language/module-code/privatename-valid-no-earlyerr.js
+
+
+
+# NEEDS INVESTIGATION 👀
+test/language/module-code/namespace/internals/delete-exported-init.js
+
+# NEEDS INVESTIGATION 👀
+test/language/module-code/namespace/internals/get-own-property-str-found-init.js
+
+# NEEDS INVESTIGATION 👀
+test/language/module-code/namespace/internals/get-str-found-init.js
+
+# NEEDS INVESTIGATION 👀
+test/language/module-code/namespace/internals/get-str-initialize.js
+
+# NEEDS INVESTIGATION 👀
+test/language/module-code/namespace/internals/get-str-update.js
+
+# NEEDS INVESTIGATION 👀 -> only fails on node v6.14.3
+test/language/module-code/namespace/internals/object-keys-binding-uninit.js
+
+
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-iee-bndng-cls.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-iee-bndng-const.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-iee-bndng-let.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-cls.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-const.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-dflt-cls.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-dflt-expr.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-dflt-star.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-fun.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-gen.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-named-bndng-let.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-star-binding.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/instn-uniq-env-rec.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/define-own-property.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/delete-exported-uninit.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/delete-non-exported.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/enumerate-binding-uninit.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/get-own-property-str-found-uninit.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/get-str-found-uninit.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/object-hasOwnProperty-binding-uninit.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/object-propertyIsEnumerable-binding-uninit.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/set.js
+
+# CHAKRA ONLY ⚠️  - NEEDS INVESTIGATION 👀 @-chakra
+test/language/module-code/namespace/internals/set-prototype-of-null.js
diff --git a/test/_external/test262/wrapper.js b/test/_external/test262/wrapper.js
new file mode 100644
index 000000000..975de6560
--- /dev/null
+++ b/test/_external/test262/wrapper.js
@@ -0,0 +1,61 @@
+import { argv, stderr, stdout } from "process"
+import harnessContext from "./context.js"
+
+const [,,testUrl, isAsync] = argv
+const _isAsync = isAsync === "true"
+
+// attach test262 harness onto global scope
+harnessContext()
+
+let _msg
+
+// global print function expected by test262
+global.print = function print(val) {
+  _msg = val
+}
+
+const MAX_WAIT = 1000
+
+function waitForAsyncTest() {
+  let wait = 0
+
+  return new Promise(function time(res, rej) {
+    if (_msg) {
+      return res()
+    } else if (wait === MAX_WAIT) {
+      return rej("test262: async test timed out.")
+    }
+
+    setTimeout(() => time(res, rej), wait += 200)
+  })
+}
+
+import(testUrl)
+  .then(() => {
+    if (! _isAsync) {
+      return
+    }
+
+    return waitForAsyncTest()
+      .then(() => {
+        if (_msg !== "Test262:AsyncTestComplete") {
+          throw _msg
+        }
+      })
+  })
+  .catch((e) => {
+    const name = typeof e === "string" ? e : e.constructor.name
+
+    const send = JSON.stringify({
+      name,
+      message: typeof e !== "string" && e.message,
+      argv
+    })
+
+    stdout.write(send)
+  })
+  .catch((e) =>
+    stderr.write(
+      `[last resort catch] something happened in the previous catch block: ${e.message}}`
+    )
+  )
diff --git a/test/tests.js b/test/tests.js
index 9ed85e8ed..4a02041ce 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -19,6 +19,7 @@ import "./main-hook-tests.mjs"
 import "./require-hook-tests.js"
 import "./repl-hook-tests.mjs"
 import "./scenario-tests.mjs"
+import "./_external/test262/index.js"
 
 const extensions = Object.assign({}, require.extensions)