switch from Babel 5 to Babel 6

use of isparta for coverage reporting
2025-11-20 12:15:51 +00:00 · 2016-01-12 06:23:19 +02:00
parent 7bfe4a6cd8
commit aa6020e00d
11 changed files with 117 additions and 120 deletions
--- a/.babelrc
+++ b/.babelrc
@@ -0,0 +1,4 @@
+{
+  "presets": ["es2015", "stage-1"],
+  "plugins": ["syntax-flow", "transform-flow-strip-types"]
+}
--- a/.flowconfig
+++ b/.flowconfig
@@ -4,6 +4,11 @@
 .*/ripple-lib/test/fixtures/.*
 .*/node_modules/flow-bin/.*
 .*/node_modules/webpack/.*
+.*/node_modules/babel-core/.*
+.*/node_modules/babel-eslint/.*
+.*/node_modules/babel-preset-es2015/.*
+.*/node_modules/babel-preset-stage-1/.*
+.*/node_modules/babel-register/.*

 [include]
 ./node_modules/
--- a/Gulpfile.js
+++ b/Gulpfile.js
@@ -35,7 +35,7 @@ function webpackConfig(extension, overrides) {
      }, {
        test: /\.js$/,
        exclude: [/node_modules/],
-        loader: 'babel-loader?optional=runtime'
+        loader: 'babel-loader'
      }, {
        test: /\.json/,
        loader: 'json-loader'
--- a/docs/index.md
+++ b/docs/index.md
@@ -138,7 +138,7 @@ If you omit the `server` parameter, RippleAPI operates [offline](#offline-functi

 1. Install [NodeJS](https://nodejs.org) and the Node Package Manager (npm). Most Linux distros have a package for NodeJS, but make sure you have version `0.12.0` or higher.
 2. Use npm to install [Babel](https://babeljs.io/) globally:
-      `npm install -g babel`
+      `npm install -g babel-cli`
 3. Use npm to install RippleAPI:
      `npm install ripple-lib`

--- a/docs/src/boilerplate.md.ejs
+++ b/docs/src/boilerplate.md.ejs
@@ -47,7 +47,7 @@ If you omit the `server` parameter, RippleAPI operates [offline](#offline-functi

 1. Install [NodeJS](https://nodejs.org) and the Node Package Manager (npm). Most Linux distros have a package for NodeJS, but make sure you have version `0.12.0` or higher.
 2. Use npm to install [Babel](https://babeljs.io/) globally:
-      `npm install -g babel`
+      `npm install -g babel-cli`
 3. Use npm to install RippleAPI:
      `npm install ripple-lib`

--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -1,20 +1,19 @@
 {
  "name": "ripple-lib",
  "version": "0.16.5",
+  "npm-shrinkwrap-version": "200.4.0",
+  "node-version": "v0.12.2",
  "dependencies": {
    "ajv": {
      "version": "1.4.10",
-      "from": "https://registry.npmjs.org/ajv/-/ajv-1.4.10.tgz",
      "resolved": "https://registry.npmjs.org/ajv/-/ajv-1.4.10.tgz",
      "dependencies": {
        "json-stable-stringify": {
          "version": "1.0.0",
-          "from": "https://registry.npmjs.org/json-stable-stringify/-/json-stable-stringify-1.0.0.tgz",
          "resolved": "https://registry.npmjs.org/json-stable-stringify/-/json-stable-stringify-1.0.0.tgz",
          "dependencies": {
            "jsonify": {
              "version": "0.0.0",
-              "from": "https://registry.npmjs.org/jsonify/-/jsonify-0.0.0.tgz",
              "resolved": "https://registry.npmjs.org/jsonify/-/jsonify-0.0.0.tgz"
            }
          }
@@ -23,155 +22,186 @@
    },
    "ajv-i18n": {
      "version": "0.1.1",
-      "from": "https://registry.npmjs.org/ajv-i18n/-/ajv-i18n-0.1.1.tgz",
      "resolved": "https://registry.npmjs.org/ajv-i18n/-/ajv-i18n-0.1.1.tgz"
    },
    "babel-polyfill": {
      "version": "6.3.14",
-      "from": "https://registry.npmjs.org/babel-polyfill/-/babel-polyfill-6.3.14.tgz",
      "resolved": "https://registry.npmjs.org/babel-polyfill/-/babel-polyfill-6.3.14.tgz",
      "dependencies": {
-        "core-js": {
-          "version": "1.2.6",
-          "from": "https://registry.npmjs.org/core-js/-/core-js-1.2.6.tgz",
-          "resolved": "https://registry.npmjs.org/core-js/-/core-js-1.2.6.tgz"
-        },
        "babel-regenerator-runtime": {
          "version": "6.3.13",
-          "from": "https://registry.npmjs.org/babel-regenerator-runtime/-/babel-regenerator-runtime-6.3.13.tgz",
          "resolved": "https://registry.npmjs.org/babel-regenerator-runtime/-/babel-regenerator-runtime-6.3.13.tgz"
+        },
+        "babel-runtime": {
+          "version": "5.8.34",
+          "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-5.8.34.tgz"
+        },
+        "core-js": {
+          "version": "1.2.6",
+          "resolved": "https://registry.npmjs.org/core-js/-/core-js-1.2.6.tgz"
        }
      }
    },
    "babel-runtime": {
-      "version": "5.8.34",
-      "from": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-5.8.34.tgz",
-      "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-5.8.34.tgz",
+      "version": "6.3.19",
+      "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-6.3.19.tgz",
      "dependencies": {
        "core-js": {
          "version": "1.2.6",
-          "from": "https://registry.npmjs.org/core-js/-/core-js-1.2.6.tgz",
          "resolved": "https://registry.npmjs.org/core-js/-/core-js-1.2.6.tgz"
        }
      }
    },
    "bignumber.js": {
      "version": "2.1.2",
-      "from": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-2.1.2.tgz",
      "resolved": "https://registry.npmjs.org/bignumber.js/-/bignumber.js-2.1.2.tgz"
    },
+    "create-hash": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.2.tgz",
+      "dependencies": {
+        "cipher-base": {
+          "version": "1.0.2",
+          "resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.2.tgz"
+        },
+        "inherits": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
+        },
+        "ripemd160": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-1.0.1.tgz"
+        },
+        "sha.js": {
+          "version": "2.4.4",
+          "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.4.tgz"
+        }
+      }
+    },
    "https-proxy-agent": {
      "version": "1.0.0",
-      "from": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-1.0.0.tgz",
      "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-1.0.0.tgz",
      "dependencies": {
        "agent-base": {
          "version": "2.0.1",
-          "from": "https://registry.npmjs.org/agent-base/-/agent-base-2.0.1.tgz",
          "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-2.0.1.tgz",
          "dependencies": {
            "semver": {
              "version": "5.0.3",
-              "from": "https://registry.npmjs.org/semver/-/semver-5.0.3.tgz",
              "resolved": "https://registry.npmjs.org/semver/-/semver-5.0.3.tgz"
            }
          }
        },
        "debug": {
          "version": "2.2.0",
-          "from": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
          "resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
          "dependencies": {
            "ms": {
              "version": "0.7.1",
-              "from": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
              "resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz"
            }
          }
        },
        "extend": {
          "version": "3.0.0",
-          "from": "https://registry.npmjs.org/extend/-/extend-3.0.0.tgz",
          "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.0.tgz"
        }
      }
    },
+    "is-my-json-valid": {
+      "version": "2.12.3",
+      "resolved": "https://registry.npmjs.org/is-my-json-valid/-/is-my-json-valid-2.12.3.tgz",
+      "dependencies": {
+        "generate-function": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/generate-function/-/generate-function-2.0.0.tgz"
+        },
+        "generate-object-property": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/generate-object-property/-/generate-object-property-1.2.0.tgz",
+          "dependencies": {
+            "is-property": {
+              "version": "1.0.2",
+              "resolved": "https://registry.npmjs.org/is-property/-/is-property-1.0.2.tgz"
+            }
+          }
+        },
+        "jsonpointer": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/jsonpointer/-/jsonpointer-2.0.0.tgz"
+        },
+        "xtend": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz"
+        }
+      }
+    },
    "jayson": {
      "version": "1.2.2",
-      "from": "https://registry.npmjs.org/jayson/-/jayson-1.2.2.tgz",
      "resolved": "https://registry.npmjs.org/jayson/-/jayson-1.2.2.tgz",
      "dependencies": {
        "JSONStream": {
          "version": "1.0.3",
-          "from": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.0.3.tgz",
          "resolved": "https://registry.npmjs.org/JSONStream/-/JSONStream-1.0.3.tgz",
          "dependencies": {
            "jsonparse": {
              "version": "1.0.0",
-              "from": "https://registry.npmjs.org/jsonparse/-/jsonparse-1.0.0.tgz",
              "resolved": "https://registry.npmjs.org/jsonparse/-/jsonparse-1.0.0.tgz"
            },
            "through": {
              "version": "2.3.8",
-              "from": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
              "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz"
            }
          }
        },
        "commander": {
          "version": "1.3.2",
-          "from": "https://registry.npmjs.org/commander/-/commander-1.3.2.tgz",
          "resolved": "https://registry.npmjs.org/commander/-/commander-1.3.2.tgz",
          "dependencies": {
            "keypress": {
              "version": "0.1.0",
-              "from": "https://registry.npmjs.org/keypress/-/keypress-0.1.0.tgz",
              "resolved": "https://registry.npmjs.org/keypress/-/keypress-0.1.0.tgz"
            }
          }
        },
        "eyes": {
          "version": "0.1.8",
-          "from": "https://registry.npmjs.org/eyes/-/eyes-0.1.8.tgz",
          "resolved": "https://registry.npmjs.org/eyes/-/eyes-0.1.8.tgz"
        },
        "lodash": {
          "version": "3.6.0",
-          "from": "https://registry.npmjs.org/lodash/-/lodash-3.6.0.tgz",
          "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.6.0.tgz"
        }
      }
    },
    "lodash": {
      "version": "3.10.1",
-      "from": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz",
      "resolved": "https://registry.npmjs.org/lodash/-/lodash-3.10.1.tgz"
    },
+    "lru-cache": {
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-2.7.0.tgz"
+    },
    "ripple-address-codec": {
      "version": "2.0.1",
-      "from": "https://registry.npmjs.org/ripple-address-codec/-/ripple-address-codec-2.0.1.tgz",
      "resolved": "https://registry.npmjs.org/ripple-address-codec/-/ripple-address-codec-2.0.1.tgz",
      "dependencies": {
        "hash.js": {
          "version": "1.0.3",
-          "from": "https://registry.npmjs.org/hash.js/-/hash.js-1.0.3.tgz",
          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.0.3.tgz",
          "dependencies": {
            "inherits": {
              "version": "2.0.1",
-              "from": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
              "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
            }
          }
        },
        "x-address-codec": {
          "version": "0.7.2",
-          "from": "https://registry.npmjs.org/x-address-codec/-/x-address-codec-0.7.2.tgz",
          "resolved": "https://registry.npmjs.org/x-address-codec/-/x-address-codec-0.7.2.tgz",
          "dependencies": {
            "base-x": {
              "version": "1.0.1",
-              "from": "https://registry.npmjs.org/base-x/-/base-x-1.0.1.tgz",
              "resolved": "https://registry.npmjs.org/base-x/-/base-x-1.0.1.tgz"
            }
          }
@@ -180,117 +210,64 @@
    },
    "ripple-binary-codec": {
      "version": "0.1.1",
-      "from": "https://registry.npmjs.org/ripple-binary-codec/-/ripple-binary-codec-0.1.1.tgz",
      "resolved": "https://registry.npmjs.org/ripple-binary-codec/-/ripple-binary-codec-0.1.1.tgz",
      "dependencies": {
-        "bn.js": {
-          "version": "3.3.0",
-          "from": "https://registry.npmjs.org/bn.js/-/bn.js-3.3.0.tgz",
-          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-3.3.0.tgz"
-        },
-        "create-hash": {
-          "version": "1.1.2",
-          "from": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.2.tgz",
-          "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.2.tgz",
+        "babel-runtime": {
+          "version": "5.8.34",
+          "resolved": "https://registry.npmjs.org/babel-runtime/-/babel-runtime-5.8.34.tgz",
          "dependencies": {
-            "cipher-base": {
-              "version": "1.0.2",
-              "from": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.2.tgz",
-              "resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.2.tgz"
-            },
-            "ripemd160": {
-              "version": "1.0.1",
-              "from": "https://registry.npmjs.org/ripemd160/-/ripemd160-1.0.1.tgz",
-              "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-1.0.1.tgz"
-            },
-            "sha.js": {
-              "version": "2.4.4",
-              "from": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.4.tgz",
-              "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.4.tgz"
+            "core-js": {
+              "version": "1.2.6",
+              "resolved": "https://registry.npmjs.org/core-js/-/core-js-1.2.6.tgz"
            }
          }
        },
+        "bn.js": {
+          "version": "3.3.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-3.3.0.tgz"
+        },
        "decimal.js": {
          "version": "4.0.3",
-          "from": "https://registry.npmjs.org/decimal.js/-/decimal.js-4.0.3.tgz",
          "resolved": "https://registry.npmjs.org/decimal.js/-/decimal.js-4.0.3.tgz"
        },
        "inherits": {
          "version": "2.0.1",
-          "from": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
        }
      }
    },
    "ripple-hashes": {
      "version": "0.1.0",
-      "from": "https://registry.npmjs.org/ripple-hashes/-/ripple-hashes-0.1.0.tgz",
-      "resolved": "https://registry.npmjs.org/ripple-hashes/-/ripple-hashes-0.1.0.tgz",
-      "dependencies": {
-        "create-hash": {
-          "version": "1.1.2",
-          "from": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.2.tgz",
-          "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.2.tgz",
-          "dependencies": {
-            "cipher-base": {
-              "version": "1.0.2",
-              "from": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.2.tgz",
-              "resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.2.tgz"
-            },
-            "inherits": {
-              "version": "2.0.1",
-              "from": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
-              "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
-            },
-            "ripemd160": {
-              "version": "1.0.1",
-              "from": "https://registry.npmjs.org/ripemd160/-/ripemd160-1.0.1.tgz",
-              "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-1.0.1.tgz"
-            },
-            "sha.js": {
-              "version": "2.4.4",
-              "from": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.4.tgz",
-              "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.4.tgz"
-            }
-          }
-        }
-      }
+      "resolved": "https://registry.npmjs.org/ripple-hashes/-/ripple-hashes-0.1.0.tgz"
    },
    "ripple-keypairs": {
      "version": "0.10.0",
-      "from": "https://registry.npmjs.org/ripple-keypairs/-/ripple-keypairs-0.10.0.tgz",
      "resolved": "https://registry.npmjs.org/ripple-keypairs/-/ripple-keypairs-0.10.0.tgz",
      "dependencies": {
        "bn.js": {
          "version": "3.3.0",
-          "from": "https://registry.npmjs.org/bn.js/-/bn.js-3.3.0.tgz",
          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-3.3.0.tgz"
        },
        "brorand": {
          "version": "1.0.5",
-          "from": "https://registry.npmjs.org/brorand/-/brorand-1.0.5.tgz",
          "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.0.5.tgz"
        },
        "elliptic": {
          "version": "5.2.1",
-          "from": "https://registry.npmjs.org/elliptic/-/elliptic-5.2.1.tgz",
          "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-5.2.1.tgz",
          "dependencies": {
            "inherits": {
              "version": "2.0.1",
-              "from": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
              "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
            }
          }
        },
        "hash.js": {
          "version": "1.0.3",
-          "from": "https://registry.npmjs.org/hash.js/-/hash.js-1.0.3.tgz",
          "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.0.3.tgz",
          "dependencies": {
            "inherits": {
              "version": "2.0.1",
-              "from": "inherits@>=2.0.1 <2.1.0",
              "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz"
            }
          }
@@ -299,22 +276,18 @@
    },
    "ripple-lib-transactionparser": {
      "version": "0.6.0",
-      "from": "https://registry.npmjs.org/ripple-lib-transactionparser/-/ripple-lib-transactionparser-0.6.0.tgz",
      "resolved": "https://registry.npmjs.org/ripple-lib-transactionparser/-/ripple-lib-transactionparser-0.6.0.tgz"
    },
    "ws": {
      "version": "1.0.1",
-      "from": "https://registry.npmjs.org/ws/-/ws-1.0.1.tgz",
      "resolved": "https://registry.npmjs.org/ws/-/ws-1.0.1.tgz",
      "dependencies": {
        "options": {
          "version": "0.0.6",
-          "from": "https://registry.npmjs.org/options/-/options-0.0.6.tgz",
          "resolved": "https://registry.npmjs.org/options/-/options-0.0.6.tgz"
        },
        "ultron": {
          "version": "1.0.2",
-          "from": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
          "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz"
        }
      }
--- a/package.json
+++ b/package.json
@@ -16,8 +16,8 @@
  },
  "dependencies": {
    "ajv": "^1.4.8",
-    "babel-polyfill": "^6.2.0",
-    "babel-runtime": "^5.5.4",
+    "babel-polyfill": "^6.3.14",
+    "babel-runtime": "^6.3.19",
    "bignumber.js": "^2.0.3",
    "https-proxy-agent": "^1.0.0",
    "jayson": "^1.2.2",
@@ -31,22 +31,26 @@
  },
  "devDependencies": {
    "assert-diff": "^1.0.1",
-    "babel": "^5.8.21",
-    "babel-core": "^5.8.22",
-    "babel-eslint": "^4.1.3",
-    "babel-loader": "^5.3.2",
+    "babel-cli": "^6.4.0",
+    "babel-core": "^6.4.0",
+    "babel-eslint": "^4.1.6",
+    "babel-loader": "^6.2.1",
+    "babel-plugin-syntax-flow": "^6.3.13",
+    "babel-plugin-transform-flow-strip-types": "^6.4.0",
+    "babel-preset-es2015": "^6.3.13",
+    "babel-preset-stage-1": "^6.3.13",
+    "babel-register": "^6.3.13",
    "coveralls": "^2.10.0",
    "doctoc": "^0.15.0",
    "ejs": "^2.3.4",
    "eslint": "^1.3.0",
-    "eslint-plugin-flowtype": "^1.0.0",
    "eventemitter2": "^0.4.14",
    "flow-bin": "^0.14",
    "gulp": "^3.8.10",
    "gulp-bump": "^0.1.13",
    "gulp-rename": "^1.2.0",
    "gulp-uglify": "^1.1.0",
-    "istanbul": "^0.3.5",
+    "isparta": "^4.0.0",
    "json-loader": "^0.5.2",
    "json-schema-to-markdown-table": "^0.4.0",
    "mocha": "^2.1.0",
@@ -66,7 +70,7 @@
    "watch": "babel -w -D --optional runtime -d dist/npm/ src/",
    "compile-with-source-maps": "babel -D --optional runtime -s -t -d dist/npm/ src/",
    "prepublish": "npm run clean && npm run compile",
-    "test": "istanbul test _mocha",
+    "test": "babel-node node_modules/isparta/lib/cli cover ./node_modules/mocha/bin/_mocha",
    "coveralls": "cat ./coverage/lcov.info | coveralls",
    "lint": "if ! [ -f eslintrc ]; then curl -o eslintrc 'https://raw.githubusercontent.com/ripple/javascript-style-guide/es6/eslintrc'; echo 'parser: babel-eslint' >> eslintrc; fi; eslint -c eslintrc src/",
    "perf": "./scripts/perf_test.sh",
--- a/scripts/ci.sh
+++ b/scripts/ci.sh
@@ -15,7 +15,7 @@ typecheck() {

 lint() {
  echo "eslint $(node_modules/.bin/eslint --version)"
-  npm list babel-eslint | grep babel-eslint
+  npm list babel-eslint
  REPO_URL="https://raw.githubusercontent.com/ripple/javascript-style-guide"
  curl "$REPO_URL/es6/eslintrc" > ./eslintrc
  echo "parser: babel-eslint" >> ./eslintrc
--- a/src/common/errors.js
+++ b/src/common/errors.js
@@ -1,7 +1,18 @@
 'use strict';
 const util = require('util');

-class RippleError extends Error {
+// this is needed because extending builtins doesn't work in babel 6.x
+function extendableBuiltin(cls) {
+  function ExtendableBuiltin() {
+    cls.apply(this, arguments);
+  }
+  ExtendableBuiltin.prototype = Object.create(cls.prototype);
+  Object.setPrototypeOf(ExtendableBuiltin, cls);
+
+  return ExtendableBuiltin;
+}
+
+class RippleError extends extendableBuiltin(Error) {
  constructor(message, data) {
    super(message);
    this.name = this.constructor.name;
--- a/test/integration/integration-test.js
+++ b/test/integration/integration-test.js
@@ -13,7 +13,7 @@ const {payTo, ledgerAccept} = require('./utils');


 // how long before each test case times out
-const TIMEOUT = process.browser ? 25000 : 10000;
+const TIMEOUT = process.browser ? 45000 : 10000;
 const INTERVAL = 1000;   // how long to wait between checks for validated ledger

 const serverUrl = 'ws://127.0.0.1:6006';
--- a/test/mocha.opts
+++ b/test/mocha.opts
@@ -1 +1 @@
--reporter spec --timeout 5000 --slow 500 --compilers js:babel/register
+--reporter spec --timeout 5000 --slow 500 --compilers js:babel-register