diff --git a/lib/cli.js b/lib/cli.js
index 99689481..ead662b7 100755
--- a/lib/cli.js
+++ b/lib/cli.js
@@ -12,7 +12,6 @@ import rootCheck from 'root-check';
 import meow from 'meow';
 import list from 'cli-list';
 import {bootstrap} from 'global-agent';
-import Tabtab from './completion/tabtab.cjs';
 import pkg from './utils/project-package.js';
 import Router from './router.js';
 import * as routes from './routes/index.js';
@@ -71,14 +70,7 @@ async function pre() {
   }
 
   if (cmd === 'completion') {
-    // eslint-disable-next-line new-cap
-    const tabtab = new Tabtab.Commands.default({
-      name: 'yo',
-      completer: 'yo-complete',
-      cache: false,
-    });
-
-    return tabtab.install();
+    throw new Error('Tabtab completion is no longer supported. See https://github.com/yeoman/yo/issues/886');
   }
 
   // Easteregg
diff --git a/lib/completion/completer.js b/lib/completion/completer.js
deleted file mode 100644
index e1d1d96d..00000000
--- a/lib/completion/completer.js
+++ /dev/null
@@ -1,106 +0,0 @@
-import path from 'node:path';
-import {execFile} from 'node:child_process';
-import parseHelp from 'parse-help';
-import {getDirname} from '../utils/node-shims.js';
-
-/**
- * The Completer is in charge of handling `yo-complete` behavior.
- * @constructor
- * @param  {Environment} env A yeoman environment instance
- */
-class Completer {
-  constructor(env) {
-    this.env = env;
-  }
-
-  /**
-   * Completion event done
-   *
-   * @param {String}   data   Environment object as parsed by tabtab
-   * @param {Function} done   Callback to invoke with completion results
-   */
-  complete(data, done) {
-    if (data.last !== 'yo' && !data.last.startsWith('-')) {
-      return this.generator(data, done);
-    }
-
-    this.env.lookup().catch(done).then(() => {
-      const meta = this.env.getGeneratorsMeta();
-      const results = Object.keys(meta).map(this.item('yo'), this);
-      done(null, results);
-    });
-  }
-
-  /**
-   * Generator completion event done
-   *
-   * @param {String}   data   Environment object as parsed by tabtab
-   * @param {Function} done   Callback to invoke with completion results
-   */
-  generator(data, done) {
-    const {last} = data;
-    const binary = path.resolve(getDirname(import.meta.url), '../cli.js');
-
-    execFile('node', [binary, last, '--help'], (error, out) => {
-      if (error) {
-        done(error);
-        return;
-      }
-
-      const results = this.parseHelp(last, out);
-      done(null, results);
-    });
-  }
-
-  /**
-   * Helper to format completion results into { name, description } objects
-   *
-   * @param {String}   data   Environment object as parsed by tabtab
-   * @param {Function} done   Callback to invoke with completion results
-   */
-  item(desc, prefix = '') {
-    return item => {
-      const name = typeof item === 'string' ? item : item.name;
-      desc = typeof item !== 'string' && item.description ? item.description : desc;
-      desc = desc.replaceAll(/^#?\s*/g, '');
-      desc = desc.replaceAll(':', '->');
-      desc = desc.replaceAll('\'', ' ');
-
-      return {
-        name: prefix + name,
-        description: desc,
-      };
-    };
-  }
-
-  /**
-   * Parse-help wrapper. Invokes parse-help with stdout result, returning the
-   * list of completion items for flags / alias.
-   *
-   * @param {String}   last  Last word in COMP_LINE (completed line in command line)
-   * @param {String}   out   Help output
-   */
-  parseHelp(last, out) {
-    const help = parseHelp(out);
-    const alias = [];
-
-    let results = Object.keys(help.flags).map(key => {
-      const flag = help.flags[key];
-
-      if (flag.alias) {
-        alias.push({...flag, name: flag.alias});
-      }
-
-      flag.name = key;
-
-      return flag;
-    }).map(this.item(last, '--'), this);
-
-    results = [...results, ...alias.map(this.item(last.replace(':', '_'), '-'), this)];
-    results = results.filter(r => r.name !== '--help' && r.name !== '-h');
-
-    return results;
-  }
-}
-
-export default Completer;
diff --git a/lib/completion/index.cjs b/lib/completion/index.cjs
deleted file mode 100755
index 7ade6c6b..00000000
--- a/lib/completion/index.cjs
+++ /dev/null
@@ -1,22 +0,0 @@
-#! /usr/bin/env node
-const tabtab = require('./tabtab.cjs')({
-  name: 'yo',
-  cache: !require('node:process').env.YO_TEST,
-});
-
-(async () => {
-  const {createEnv} = await import('yeoman-environment');
-  const {default: Completer} = await import('./completer.js');
-  const completer = new Completer(createEnv());
-
-  tabtab.completer = completer;
-
-  // Lookup installed generator in yeoman environment,
-  // respond completion results with each generator
-  tabtab.on('yo', completer.complete.bind(completer));
-
-  // Register complete command
-  tabtab.start();
-})();
-
-module.exports = tabtab;
diff --git a/lib/completion/tabtab.cjs b/lib/completion/tabtab.cjs
deleted file mode 100644
index 395598c2..00000000
--- a/lib/completion/tabtab.cjs
+++ /dev/null
@@ -1,3 +0,0 @@
-const tabtab = require('tabtab');
-
-module.exports = tabtab;
diff --git a/lib/usage.txt b/lib/usage.txt
index cdf61e30..6dd0aad4 100644
--- a/lib/usage.txt
+++ b/lib/usage.txt
@@ -21,12 +21,6 @@ Run local generators:
 
   $ yo ./path/to/some/generator
 
-Completion:
-
-  To enable shell completion for the yo command, try running
-
-  $ yo completion
-
 Troubleshooting:
 
   For any issues, try running
diff --git a/package-lock.json b/package-lock.json
index d5b626eb..16fbfc4b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,6 @@
         "root-check": "^2.0.0",
         "sort-on": "^6.1.1",
         "string-length": "^6.0.0",
-        "tabtab": "^1.3.2",
         "titleize": "^4.0.0",
         "update-notifier": "^7.3.1",
         "yeoman-character": "^2.0.0",
@@ -39,8 +38,7 @@
         "yosay": "^3.0.0"
       },
       "bin": {
-        "yo": "lib/cli.js",
-        "yo-complete": "lib/completion/index.cjs"
+        "yo": "lib/cli.js"
       },
       "devDependencies": {
         "c8": "^10.1.3",
@@ -3968,12 +3966,6 @@
         "url": "https://github.com/sponsors/epoberezkin"
       }
     },
-    "node_modules/ansi": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/ansi/-/ansi-0.3.1.tgz",
-      "integrity": "sha512-iFY7JCgHbepc0b82yLaw4IMortylNb6wG4kL+4R0C3iv6i+RHGHux/yUX5BTiRvSX/shMnngjR1YyNMnXEFh5A==",
-      "license": "MIT"
-    },
     "node_modules/ansi-align": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/ansi-align/-/ansi-align-3.0.1.tgz",
@@ -4089,17 +4081,6 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
-    "node_modules/are-we-there-yet": {
-      "version": "1.1.7",
-      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.7.tgz",
-      "integrity": "sha512-nxwy40TuMiUGqMyRHgCSWZ9FM4VAoRP4xUYSTv5ImRog+h9yISPbVH7H8fASCIzYn9wlEv4zvFL7uKDMCFQm3g==",
-      "deprecated": "This package is no longer supported.",
-      "license": "ISC",
-      "dependencies": {
-        "delegates": "^1.0.0",
-        "readable-stream": "^2.0.6"
-      }
-    },
     "node_modules/argparse": {
       "version": "1.0.10",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
@@ -4778,12 +4759,6 @@
         "node-int64": "^0.4.0"
       }
     },
-    "node_modules/buffer-from": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
-      "integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==",
-      "license": "MIT"
-    },
     "node_modules/builtin-modules": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-5.0.0.tgz",
@@ -5349,15 +5324,6 @@
         "node": "^18.17.0 || >=20.5.0"
       }
     },
-    "node_modules/code-point-at": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
-      "integrity": "sha512-RpAVKQA5T63xEj6/giIbUEtZwJ4UFIc3ZtvEkiaUERylqe8xb5IvqcgOurZLahv93CLKfxcw5YI+DZcUBRyLXA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
@@ -5442,21 +5408,6 @@
       "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
       "license": "MIT"
     },
-    "node_modules/concat-stream": {
-      "version": "1.6.2",
-      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
-      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
-      "engines": [
-        "node >= 0.8"
-      ],
-      "license": "MIT",
-      "dependencies": {
-        "buffer-from": "^1.0.0",
-        "inherits": "^2.0.3",
-        "readable-stream": "^2.2.2",
-        "typedarray": "^0.0.6"
-      }
-    },
     "node_modules/config-chain": {
       "version": "1.1.13",
       "resolved": "https://registry.npmjs.org/config-chain/-/config-chain-1.1.13.tgz",
@@ -5525,12 +5476,6 @@
         "url": "https://opencollective.com/core-js"
       }
     },
-    "node_modules/core-util-is": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
-      "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
-      "license": "MIT"
-    },
     "node_modules/cosmiconfig": {
       "version": "9.0.0",
       "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.0.tgz",
@@ -5867,12 +5812,6 @@
         "node": ">=0.4.0"
       }
     },
-    "node_modules/delegates": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/delegates/-/delegates-1.0.0.tgz",
-      "integrity": "sha512-bd2L678uiWATM6m5Z1VzNCErI3jiGzt6HGY8OVICs40JQq/HALfbyNJmp0UDakEY4pMMaN0Ly5om/B1VI/+xfQ==",
-      "license": "MIT"
-    },
     "node_modules/detect-node": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/detect-node/-/detect-node-2.1.0.tgz",
@@ -7331,15 +7270,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/exit-hook": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/exit-hook/-/exit-hook-1.1.1.tgz",
-      "integrity": "sha512-MsG3prOVw1WtLXAZbM3KiYtooKR1LvxHh3VHsVtIy0uiUu8usxgB/94DP2HxtD/661lLdB6yzQ09lGJSQr6nkg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/expect": {
       "version": "30.1.2",
       "resolved": "https://registry.npmjs.org/expect/-/expect-30.1.2.tgz",
@@ -7368,19 +7298,9 @@
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
       "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==",
+      "dev": true,
       "license": "MIT"
     },
-    "node_modules/external-editor": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-1.1.1.tgz",
-      "integrity": "sha512-0XYlP43jzxMgJjugDJ85Z0UDPnowkUbfFztNvsSGC9sJVIk97MZbGEb9WAhIVH0UgNxoLj/9ZQgB4CHJyz2GGQ==",
-      "license": "MIT",
-      "dependencies": {
-        "extend": "^3.0.0",
-        "spawn-sync": "^1.0.15",
-        "tmp": "^0.0.29"
-      }
-    },
     "node_modules/extsprintf": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.3.0.tgz",
@@ -7941,20 +7861,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/gauge": {
-      "version": "1.2.7",
-      "resolved": "https://registry.npmjs.org/gauge/-/gauge-1.2.7.tgz",
-      "integrity": "sha512-fVbU2wRE91yDvKUnrIaQlHKAWKY5e08PmztCrwuH5YVQ+Z/p3d0ny2T48o6uvAAXHIUnfaQdHkmxYbQft1eHVA==",
-      "deprecated": "This package is no longer supported.",
-      "license": "ISC",
-      "dependencies": {
-        "ansi": "^0.3.0",
-        "has-unicode": "^2.0.0",
-        "lodash.pad": "^4.1.0",
-        "lodash.padend": "^4.1.0",
-        "lodash.padstart": "^4.1.0"
-      }
-    },
     "node_modules/gensync": {
       "version": "1.0.0-beta.2",
       "resolved": "https://registry.npmjs.org/gensync/-/gensync-1.0.0-beta.2.tgz",
@@ -8334,27 +8240,6 @@
         "node": ">=6"
       }
     },
-    "node_modules/has-ansi": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
-      "integrity": "sha512-C8vBJ8DwUCx19vhm7urhTuUsr4/IyP6l4VzNQDv+ryHQObW3TTTp9yB68WpYgRe2bbaGuZ/se74IqFeVnMnLZg==",
-      "license": "MIT",
-      "dependencies": {
-        "ansi-regex": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/has-ansi/node_modules/ansi-regex": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-      "integrity": "sha512-TIGnTpdo+E3+pCyAluZvtED5p5wCqLdezCyhPZzKPcxvFplEt4i+W7OONCKgeZFT3+y5NZZfOOS/Bdcanm1MYA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/has-bigints": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/has-bigints/-/has-bigints-1.1.0.tgz",
@@ -8434,12 +8319,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/has-unicode": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/has-unicode/-/has-unicode-2.0.1.tgz",
-      "integrity": "sha512-8Rf9Y83NBReMnx0gFzA8JImQACstCYWUplepDa9xprwwtmgEZUF0h/i5xSA625zB/I37EtrswSST6OXxwaaIJQ==",
-      "license": "ISC"
-    },
     "node_modules/hasown": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
@@ -8703,6 +8582,7 @@
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "dev": true,
       "license": "ISC"
     },
     "node_modules/ini": {
@@ -9440,12 +9320,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/isarray": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
-      "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ==",
-      "license": "MIT"
-    },
     "node_modules/isbinaryfile": {
       "version": "5.0.6",
       "resolved": "https://registry.npmjs.org/isbinaryfile/-/isbinaryfile-5.0.6.tgz",
@@ -10241,24 +10115,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/lodash.pad": {
-      "version": "4.5.1",
-      "resolved": "https://registry.npmjs.org/lodash.pad/-/lodash.pad-4.5.1.tgz",
-      "integrity": "sha512-mvUHifnLqM+03YNzeTBS1/Gr6JRFjd3rRx88FHWUvamVaT9k2O/kXha3yBSOwB9/DTQrSTLJNHvLBBt2FdX7Mg==",
-      "license": "MIT"
-    },
-    "node_modules/lodash.padend": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/lodash.padend/-/lodash.padend-4.6.1.tgz",
-      "integrity": "sha512-sOQs2aqGpbl27tmCS1QNZA09Uqp01ZzWfDUoD+xzTii0E7dSQfRKcRetFwa+uXaxaqL+TKm7CgD2JdKP7aZBSw==",
-      "license": "MIT"
-    },
-    "node_modules/lodash.padstart": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/lodash.padstart/-/lodash.padstart-4.6.1.tgz",
-      "integrity": "sha512-sW73O6S8+Tg66eY56DBk85aQzzUJDtpoXFBgELMd5P/SotAguo+1kYO6RuYgXxA4HJH3LFTFPASX6ET6bjfriw==",
-      "license": "MIT"
-    },
     "node_modules/log-driver": {
       "version": "1.2.7",
       "resolved": "https://registry.npmjs.org/log-driver/-/log-driver-1.2.7.tgz",
@@ -10758,18 +10614,6 @@
         "node": ">= 18"
       }
     },
-    "node_modules/mkdirp": {
-      "version": "0.5.6",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
-      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
-      "license": "MIT",
-      "dependencies": {
-        "minimist": "^1.2.6"
-      },
-      "bin": {
-        "mkdirp": "bin/cmd.js"
-      }
-    },
     "node_modules/mocha": {
       "version": "11.7.2",
       "resolved": "https://registry.npmjs.org/mocha/-/mocha-11.7.2.tgz",
@@ -11360,27 +11204,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/npmlog": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/npmlog/-/npmlog-2.0.4.tgz",
-      "integrity": "sha512-DaL6RTb8Qh4tMe2ttPT1qWccETy2Vi5/8p+htMpLBeXJTr2CAqnF5WQtSP2eFpvaNbhLZ5uilDb98mRm4Q+lZQ==",
-      "deprecated": "This package is no longer supported.",
-      "license": "ISC",
-      "dependencies": {
-        "ansi": "~0.3.1",
-        "are-we-there-yet": "~1.1.2",
-        "gauge": "~1.2.5"
-      }
-    },
-    "node_modules/number-is-nan": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
-      "integrity": "sha512-4jbtZXNAsfZbAHiiqjLPBiCl16dES1zI4Hpzzxw61Tk+loF+sBDBKx1ICKKKwIqQ7M0mFn1TmkN7euSncWgHiQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/oauth-sign": {
       "version": "0.9.0",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
@@ -11405,6 +11228,7 @@
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
       "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
@@ -11787,23 +11611,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/os-shim": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/os-shim/-/os-shim-0.1.3.tgz",
-      "integrity": "sha512-jd0cvB8qQ5uVt0lvCIexBaROw1KyKm5sbulg2fWOHjETisuCzWyt+eTZKEMs8v6HwzoGs8xik26jg7eCM6pS+A==",
-      "engines": {
-        "node": ">= 0.4.0"
-      }
-    },
-    "node_modules/os-tmpdir": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
-      "integrity": "sha512-D2FR03Vir7FIu45XBY20mTb+/ZSWB00sjU9jdQXt83gDrI4Ztz5Fs7/yy74g2N5SVQY4xY1qDr4rNddwYRVX0g==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/outvariant": {
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/outvariant/-/outvariant-1.4.3.tgz",
@@ -12335,27 +12142,6 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
-    "node_modules/pinkie": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/pinkie/-/pinkie-2.0.4.tgz",
-      "integrity": "sha512-MnUuEycAemtSaeFSjXKW/aroV7akBbY+Sv+RkyqFjgAe73F+MR0TBWKBRDkmfWq/HiFmdavfZ1G7h4SPZXaCSg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/pinkie-promise": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/pinkie-promise/-/pinkie-promise-2.0.1.tgz",
-      "integrity": "sha512-0Gni6D4UcLTbv9c57DfxDGdr41XfgUjqWZu492f0cIGr16zDU06BWP/RAEvOuo7CQ0CNjHaLlM59YJJFm3NWlw==",
-      "license": "MIT",
-      "dependencies": {
-        "pinkie": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/pirates": {
       "version": "4.0.7",
       "resolved": "https://registry.npmjs.org/pirates/-/pirates-4.0.7.tgz",
@@ -12518,12 +12304,6 @@
         "node": "^18.17.0 || >=20.5.0"
       }
     },
-    "node_modules/process-nextick-args": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
-      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag==",
-      "license": "MIT"
-    },
     "node_modules/proggy": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/proggy/-/proggy-3.0.0.tgz",
@@ -12781,27 +12561,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/readable-stream": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
-      "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
-      "license": "MIT",
-      "dependencies": {
-        "core-util-is": "~1.0.0",
-        "inherits": "~2.0.3",
-        "isarray": "~1.0.0",
-        "process-nextick-args": "~2.0.0",
-        "safe-buffer": "~5.1.1",
-        "string_decoder": "~1.1.1",
-        "util-deprecate": "~1.0.1"
-      }
-    },
-    "node_modules/readable-stream/node_modules/safe-buffer": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-      "license": "MIT"
-    },
     "node_modules/readdirp": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-4.1.2.tgz",
@@ -13166,12 +12925,6 @@
         "queue-microtask": "^1.2.2"
       }
     },
-    "node_modules/rx": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/rx/-/rx-4.1.0.tgz",
-      "integrity": "sha512-CiaiuN6gapkdl+cZUr67W6I8jquN4lkak3vtIsIWCl4XIPP8ffsoyN6/+PuGXnQy8Cu8W2y9Xxh31Rq4M6wUug==",
-      "license": "Apache-2.0"
-    },
     "node_modules/rxjs": {
       "version": "7.8.2",
       "resolved": "https://registry.npmjs.org/rxjs/-/rxjs-7.8.2.tgz",
@@ -13616,17 +13369,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/spawn-sync": {
-      "version": "1.0.15",
-      "resolved": "https://registry.npmjs.org/spawn-sync/-/spawn-sync-1.0.15.tgz",
-      "integrity": "sha512-9DWBgrgYZzNghseho0JOuh+5fg9u6QWhAWa51QC7+U5rCheZ/j1DrEZnyE0RBBRqZ9uEXGPgSSM0nky6burpVw==",
-      "hasInstallScript": true,
-      "license": "MIT",
-      "dependencies": {
-        "concat-stream": "^1.4.7",
-        "os-shim": "^0.1.2"
-      }
-    },
     "node_modules/spdx-correct": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.2.0.tgz",
@@ -13781,21 +13523,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/string_decoder": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
-      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
-      "license": "MIT",
-      "dependencies": {
-        "safe-buffer": "~5.1.0"
-      }
-    },
-    "node_modules/string_decoder/node_modules/safe-buffer": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-      "license": "MIT"
-    },
     "node_modules/string-length": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/string-length/-/string-length-6.0.0.tgz",
@@ -14216,227 +13943,6 @@
         "url": "https://opencollective.com/synckit"
       }
     },
-    "node_modules/tabtab": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/tabtab/-/tabtab-1.3.2.tgz",
-      "integrity": "sha512-qHWOJ5g7lrpftZMyPv3ZaYZs7PuUTKWEP/TakZHfpq66bSwH25SQXn5616CCh6Hf/1iPcgQJQHGcJkzQuATabQ==",
-      "license": "MIT",
-      "dependencies": {
-        "debug": "^2.2.0",
-        "inquirer": "^1.0.2",
-        "minimist": "^1.2.0",
-        "mkdirp": "^0.5.1",
-        "npmlog": "^2.0.3",
-        "object-assign": "^4.1.0"
-      },
-      "bin": {
-        "tabtab": "bin/tabtab"
-      }
-    },
-    "node_modules/tabtab/node_modules/ansi-escapes": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-1.4.0.tgz",
-      "integrity": "sha512-wiXutNjDUlNEDWHcYH3jtZUhd3c4/VojassD8zHdHCY13xbZy2XbW+NKQwA0tWGBVzDA9qEzYwfoSsWmviidhw==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/ansi-regex": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-      "integrity": "sha512-TIGnTpdo+E3+pCyAluZvtED5p5wCqLdezCyhPZzKPcxvFplEt4i+W7OONCKgeZFT3+y5NZZfOOS/Bdcanm1MYA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/ansi-styles": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
-      "integrity": "sha512-kmCevFghRiWM7HB5zTPULl4r9bVFSWjz62MhqizDGUrq2NWuNMQyuv4tHHoKJHs69M/MF64lEcHdYIocrdWQYA==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/chalk": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
-      "integrity": "sha512-U3lRVLMSlsCfjqYPbLyVv11M9CPW4I728d6TCKMAOJueEeB9/8o+eSsMnxPJD+Q+K909sdESg7C+tIkoH6on1A==",
-      "license": "MIT",
-      "dependencies": {
-        "ansi-styles": "^2.2.1",
-        "escape-string-regexp": "^1.0.2",
-        "has-ansi": "^2.0.0",
-        "strip-ansi": "^3.0.0",
-        "supports-color": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/cli-cursor": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-1.0.2.tgz",
-      "integrity": "sha512-25tABq090YNKkF6JH7lcwO0zFJTRke4Jcq9iX2nr/Sz0Cjjv4gckmwlW6Ty/aoyFd6z3ysR2hMGC2GFugmBo6A==",
-      "license": "MIT",
-      "dependencies": {
-        "restore-cursor": "^1.0.1"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/cli-width": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.1.tgz",
-      "integrity": "sha512-GRMWDxpOB6Dgk2E5Uo+3eEBvtOOlimMmpbFiKuLFnQzYDavtLFY3K5ona41jgN/WdRZtG7utuVSVTL4HbZHGkw==",
-      "license": "ISC"
-    },
-    "node_modules/tabtab/node_modules/debug": {
-      "version": "2.6.9",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-      "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
-      "license": "MIT",
-      "dependencies": {
-        "ms": "2.0.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/escape-string-regexp": {
-      "version": "1.0.5",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-      "integrity": "sha512-vbRorB5FUQWvla16U8R/qgaFIya2qGzwDrNmCZuYKrbdSUMG6I1ZCGQRefkRVhuOkIGVne7BQ35DSfo1qvJqFg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.8.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/figures": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/figures/-/figures-1.7.0.tgz",
-      "integrity": "sha512-UxKlfCRuCBxSXU4C6t9scbDyWZ4VlaFFdojKtzJuSkuOBQ5CNFum+zZXFwHjo+CxBC1t6zlYPgHIgFjL8ggoEQ==",
-      "license": "MIT",
-      "dependencies": {
-        "escape-string-regexp": "^1.0.5",
-        "object-assign": "^4.1.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/inquirer": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/inquirer/-/inquirer-1.2.3.tgz",
-      "integrity": "sha512-diSnpgfv/Ozq6QKuV2mUcwZ+D24b03J3W6EVxzvtkCWJTPrH2gKLsqgSW0vzRMZZFhFdhnvzka0RUJxIm7AOxQ==",
-      "license": "MIT",
-      "dependencies": {
-        "ansi-escapes": "^1.1.0",
-        "chalk": "^1.0.0",
-        "cli-cursor": "^1.0.1",
-        "cli-width": "^2.0.0",
-        "external-editor": "^1.1.0",
-        "figures": "^1.3.5",
-        "lodash": "^4.3.0",
-        "mute-stream": "0.0.6",
-        "pinkie-promise": "^2.0.0",
-        "run-async": "^2.2.0",
-        "rx": "^4.1.0",
-        "string-width": "^1.0.1",
-        "strip-ansi": "^3.0.0",
-        "through": "^2.3.6"
-      }
-    },
-    "node_modules/tabtab/node_modules/is-fullwidth-code-point": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
-      "integrity": "sha512-1pqUqRjkhPJ9miNq9SwMfdvi6lBJcd6eFxvfaivQhaH3SgisfiuudvFntdKOmxuee/77l+FPjKrQjWvmPjWrRw==",
-      "license": "MIT",
-      "dependencies": {
-        "number-is-nan": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/ms": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
-      "license": "MIT"
-    },
-    "node_modules/tabtab/node_modules/mute-stream": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/mute-stream/-/mute-stream-0.0.6.tgz",
-      "integrity": "sha512-m0kBTDLF/0lgzCsPVmJSKM5xkLNX7ZAB0Q+n2DP37JMIRPVC2R4c3BdO6x++bXFKftbhvSfKgwxAexME+BRDRw==",
-      "license": "ISC"
-    },
-    "node_modules/tabtab/node_modules/onetime": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/onetime/-/onetime-1.1.0.tgz",
-      "integrity": "sha512-GZ+g4jayMqzCRMgB2sol7GiCLjKfS1PINkjmx8spcKce1LiVqcbQreXwqs2YAFXC6R03VIG28ZS31t8M866v6A==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/restore-cursor": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-1.0.1.tgz",
-      "integrity": "sha512-reSjH4HuiFlxlaBaFCiS6O76ZGG2ygKoSlCsipKdaZuKSPx/+bt9mULkn4l0asVzbEfQQmXRg6Wp6gv6m0wElw==",
-      "license": "MIT",
-      "dependencies": {
-        "exit-hook": "^1.0.0",
-        "onetime": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/run-async": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/run-async/-/run-async-2.4.1.tgz",
-      "integrity": "sha512-tvVnVv01b8c1RrA6Ep7JkStj85Guv/YrMcwqYQnwjsAS2cTmmPGBBjAjpCW7RrSodNSoE2/qg9O4bceNvUuDgQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.12.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/string-width": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
-      "integrity": "sha512-0XsVpQLnVCXHJfyEs8tC0zpTVIr5PKKsQtkT29IwupnPTjtPmQ3xT/4yCREF9hYkV/3M3kzcUTSAZT6a6h81tw==",
-      "license": "MIT",
-      "dependencies": {
-        "code-point-at": "^1.0.0",
-        "is-fullwidth-code-point": "^1.0.0",
-        "strip-ansi": "^3.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/strip-ansi": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
-      "integrity": "sha512-VhumSSbBqDTP8p2ZLKj40UjBCV4+v8bUSEpUb4KjRgWk9pbqGF4REFj6KEagidb2f/M6AzC0EmFyDNGaw9OCzg==",
-      "license": "MIT",
-      "dependencies": {
-        "ansi-regex": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/tabtab/node_modules/supports-color": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
-      "integrity": "sha512-KKNVtd6pCYgPIKU4cp2733HWYCpplQhddZLBUryaAHou723x+FRzQ5Df824Fj+IyyuiQTRoub4SnIFfIcrp70g==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.8.0"
-      }
-    },
     "node_modules/tapable": {
       "version": "2.2.3",
       "resolved": "https://registry.npmjs.org/tapable/-/tapable-2.2.3.tgz",
@@ -14530,12 +14036,6 @@
         "url": "https://bevry.me/fund"
       }
     },
-    "node_modules/through": {
-      "version": "2.3.8",
-      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha512-w89qg7PI8wAdvX60bMDP+bFoD5Dvhm9oLheFp5O4a2QF0cSBGsBX4qZmadPMvVqlLJBBci+WqGGOAPvcDeNSVg==",
-      "license": "MIT"
-    },
     "node_modules/time-span": {
       "version": "5.1.0",
       "resolved": "https://registry.npmjs.org/time-span/-/time-span-5.1.0.tgz",
@@ -14579,18 +14079,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/tmp": {
-      "version": "0.0.29",
-      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.29.tgz",
-      "integrity": "sha512-89PTqMWGDva+GqClOqBV9s3SMh7MA3Mq0pJUdAoHuF65YoE7O0LermaZkVfT5/Ngfo18H4eYiyG7zKOtnEbxsw==",
-      "license": "MIT",
-      "dependencies": {
-        "os-tmpdir": "~1.0.1"
-      },
-      "engines": {
-        "node": ">=0.4.0"
-      }
-    },
     "node_modules/tmpl": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/tmpl/-/tmpl-1.0.5.tgz",
@@ -14909,12 +14397,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/typedarray": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
-      "integrity": "sha512-/aCDEGatGvZ2BIk+HmLf4ifCJFwvKFNb9/JeZPMulfgFracn9QFcAf5GO8B/mweUjSoblS5In0cWhqpfs/5PQA==",
-      "license": "MIT"
-    },
     "node_modules/typescript": {
       "version": "5.9.2",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
diff --git a/package.json b/package.json
index 33226d68..373cf2af 100644
--- a/package.json
+++ b/package.json
@@ -26,8 +26,7 @@
   "type": "module",
   "main": "lib",
   "bin": {
-    "yo": "lib/cli.js",
-    "yo-complete": "lib/completion/index.cjs"
+    "yo": "lib/cli.js"
   },
   "files": [
     "lib"
@@ -63,7 +62,6 @@
     "root-check": "^2.0.0",
     "sort-on": "^6.1.1",
     "string-length": "^6.0.0",
-    "tabtab": "^1.3.2",
     "titleize": "^4.0.0",
     "update-notifier": "^7.3.1",
     "yeoman-character": "^2.0.0",
@@ -83,15 +81,5 @@
   },
   "engines": {
     "node": "^20.17.0 || >=22.9.0"
-  },
-  "tabtab": {
-    "yo": [
-      "-f",
-      "--force",
-      "--version",
-      "--no-color",
-      "--generators",
-      "--local-only"
-    ]
   }
 }
diff --git a/test/completion.js b/test/completion.js
deleted file mode 100644
index bcce2bb4..00000000
--- a/test/completion.js
+++ /dev/null
@@ -1,165 +0,0 @@
-import path from 'node:path';
-import assert from 'node:assert';
-import events from 'node:events';
-import {execFileSync} from 'node:child_process';
-import os from 'node:os';
-import _ from 'lodash';
-import Completer from '../lib/completion/completer.js';
-import completion from '../lib/completion/index.cjs';
-import {getDirname} from '../lib/utils/node-shims.js';
-
-const __dirname = getDirname(import.meta.url);
-
-const help = `
-  Usage:
-  yo backbone:app [options] [<app_name>]
-
-  Options:
-    -h,   --help                # Print the generator's options and usage
-          --skip-cache          # Do not remember prompt answers                         Default: false
-          --skip-install        # Do not automatically install dependencies              Default: false
-          --appPath             # Name of application directory                          Default: app
-          --requirejs           # Support requirejs                                      Default: false
-          --template-framework  # Choose template framework. lodash/handlebars/mustache  Default: lodash
-          --test-framework      # Choose test framework. mocha/jasmine                   Default: mocha
-
-  Arguments:
-    app_name    Type: String  Required: false`;
-
-describe('Completion', () => {
-  before(async function () {
-    const {createEnv} = await import('yeoman-environment');
-    this.env = createEnv();
-  });
-
-  describe('Test completion STDOUT output', () => {
-    (os.platform() === 'win32' ? it.skip : it)(
-      'Returns the completion candidates for both options and installed generators',
-      () => {
-        const yocomplete = path.join(__dirname, '../lib/completion/index.cjs');
-        const yo = path.join(__dirname, '../lib/cli');
-
-        let cmd
-          = 'export cmd="yo" && YO_TEST=true DEBUG="tabtab*" COMP_POINT="4" COMP_LINE="yo" COMP_CWORD="yo"';
-        cmd += `node ${yocomplete} completion -- ${yo} $cmd`;
-
-        const result = execFileSync(cmd, {encoding: 'utf8', shell: true});
-        assert.ok(/-f/.test(result));
-        assert.ok(/--force/.test(result));
-        assert.ok(/--version/.test(result));
-        assert.ok(/--no-color/.test(result));
-        assert.ok(/--generators/.test(result));
-        assert.ok(/--local-only/.test(result));
-      },
-    );
-  });
-
-  describe('Completion', () => {
-    it('Creates tabtab instance', () => {
-      assert.ok(completion instanceof events);
-    });
-  });
-
-  describe('Completer', () => {
-    beforeEach(function () {
-      // Mock / Monkey patch env.getGeneratorsMeta() here, since we pass the
-      // instance directly to completer.
-      this.getGeneratorsMeta = this.env.getGeneratorsMeta;
-
-      this.env.getGeneratorsMeta = () => ({
-        'dummy:app': {
-          resolved: '/home/user/.nvm/versions/node/v6.1.0/lib/node_modules/generator-dummy/app/index.js',
-          namespace: 'dummy:app',
-        },
-        'dummy:yo': {
-          resolved: '/home/user/.nvm/versions/node/v6.1.0/lib/node_modules/generator-dummy/yo/index.js',
-          namespace: 'dummy:yo',
-        },
-      });
-
-      this.completer = new Completer(this.env);
-    });
-
-    afterEach(function () {
-      this.env.getGeneratorsMeta = this.getGeneratorsMeta;
-    });
-
-    describe('#parseHelp', () => {
-      it('Returns completion items based on help output', function () {
-        const results = this.completer.parseHelp('backbone:app', help);
-        const first = results[0];
-
-        assert.strictEqual(results.length, 6);
-        assert.deepStrictEqual(first, {
-          name: '--skip-cache',
-          description: 'Do not remember prompt answers                         Default-> false',
-        });
-      });
-    });
-
-    describe('#item', () => {
-      it('Format results into { name, description }', function () {
-        const list = ['foo', 'bar'];
-        const results = list.map(this.completer.item('yo!', '--'));
-        assert.deepStrictEqual(results, [{
-          name: '--foo',
-          description: 'yo!',
-        }, {
-          name: '--bar',
-          description: 'yo!',
-        }]);
-      });
-
-      it('Escapes certain characters before consumption by shell scripts', function () {
-        const list = ['foo'];
-
-        const desc = '#  yo I\'m a very subtle description, with chars that likely will break your Shell: yeah I\'m mean';
-        const expected = 'yo I m a very subtle description, with chars that likely will break your Shell-> yeah I m mean';
-        const results = list.map(this.completer.item(desc, '-'));
-
-        assert.strictEqual(results[0].description, expected);
-      });
-    });
-
-    describe('#generator', () => {
-      it('Returns completion candidates from generator help output', function (done) {
-        // Here we test against yo --help (could use dummy:yo --help)
-        this.completer.complete({last: ''}, (error, results) => {
-          if (error) {
-            done(error);
-            return;
-          }
-
-          /* eslint no-multi-spaces: 0 */
-          assert.deepStrictEqual(results, [
-            {name: '--force', description: 'Overwrite files that already exist'},
-            {name: '--version', description: 'Print version'},
-            {name: '--no-color', description: 'Disable colors'},
-            {name: '--generators', description: 'Print available generators'},
-            {name: '--local-only', description: 'Disable lookup of globally-installed generators'},
-            {name: '-f', description: 'Overwrite files that already exist'},
-          ]);
-
-          done();
-        });
-      });
-    });
-
-    describe('#complete', () => {
-      it('Returns the list of user installed generators as completion candidates', function (done) {
-        this.completer.complete({last: 'yo'}, (error, results) => {
-          if (error) {
-            done(error);
-            return;
-          }
-
-          const dummy = _.find(results, result => result.name === 'dummy:yo');
-          assert.strictEqual(dummy.name, 'dummy:yo');
-          assert.strictEqual(dummy.description, 'yo');
-
-          done();
-        });
-      });
-    });
-  });
-});