Arguments: 
  /Users/ckirby/.nvm/versions/node/v8.9.0/bin/node /Users/ckirby/.nvm/versions/node/v8.9.0/bin/yarn test

PATH: 
  /Users/ckirby/.yarn/bin:/usr/local/sbin:/Users/ckirby/.nvm/versions/node/v8.9.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

Yarn version: 
  1.5.1

Node version: 
  8.9.0

Platform: 
  darwin x64

npm manifest: 
  {
    "name": "@ckirby/wink-bm25-text-search",
    "version": "3.2.0",
    "description": "Configurable BM25 Text Search Engine with simple semantic search support",
    "keywords": [
      "BM25",
      "BM25F",
      "TFIDF",
      "TF-IDF",
      "In Memory Search",
      "Semantic Search",
      "Full Text Search",
      "NLP",
      "Natural Language Processing"
    ],
    "main": "src/wink-bm25-text-search.js",
    "scripts": {
      "pretest": "npm run lint",
      "test": "istanbul cover _mocha ./test/",
      "coveralls": "istanbul cover _mocha --report lcovonly -- -R spec && cat ./coverage/lcov.info | coveralls && rm -rf ./coverage",
      "docs": "docco -o ./docs/ ./src/*.js",
      "lint": "eslint ./src/*.js ./test/*.js ./runkit/*.js",
      "changelog": "standard-changelog"
    },
    "repository": {
      "type": "git",
      "url": "git+https://github.com/chadkirby/wink-bm25-text-search.git"
    },
    "author": "Sanjaya Kumar Saxena",
    "license": "AGPL-3.0",
    "bugs": {
      "url": "https://github.com/chadkirby/wink-bm25-text-search/issues"
    },
    "homepage": "https://github.com/chadkirby/wink-bm25-text-search#readme",
    "devDependencies": {
      "chai": "^4.1.2",
      "coveralls": "^3.0.1",
      "docco": "^0.8.0",
      "eslint": "^4.19.1",
      "istanbul": "^1.1.0-alpha.1",
      "mocha": "^5.2.0",
      "mocha-lcov-reporter": "^1.3.0",
      "standard-changelog": "^2.0.0"
    },
    "dependencies": {
      "bluebird": "^3.5.1",
      "wink-helpers": "^1.4.0",
      "wink-nlp-utils": "^1.9.0"
    },
    "runkitExampleFilename": "runkit/example.js"
  }

yarn manifest: 
  No manifest

Lockfile: 
  No lockfile

Trace: 
  Error: Command failed.
  Exit code: 1
  Command: sh
  Arguments: -c istanbul cover _mocha ./test/
  Directory: /Users/ckirby/repositories/wink-bm25-text-search
  Output:
  
      at ProcessTermError.MessageError (/Users/ckirby/.nvm/versions/node/v8.9.0/lib/node_modules/yarn/lib/cli.js:186:110)
      at new ProcessTermError (/Users/ckirby/.nvm/versions/node/v8.9.0/lib/node_modules/yarn/lib/cli.js:226:113)
      at ChildProcess.<anonymous> (/Users/ckirby/.nvm/versions/node/v8.9.0/lib/node_modules/yarn/lib/cli.js:30281:17)
      at emitTwo (events.js:126:13)
      at ChildProcess.emit (events.js:214:7)
      at maybeClose (internal/child_process.js:925:16)
      at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)