From ea6261eb962a04a191c01e16387faddfdea48352 Mon Sep 17 00:00:00 2001
From: "Nicholas C. Zakas" <nicholas@nczconsulting.com>
Date: Tue, 2 Feb 2016 14:06:04 -0800
Subject: [PATCH] Fix: Object rest/spread in assign (fixes #247)

---
 espree.js                                     |  29 +
 .../destructuring-assign-mirror.result.js     | 549 +++++++++++++++
 .../destructuring-assign-mirror.src.js        |   1 +
 .../shorthand-method-args.result.js           | 626 ++++++++++++++++++
 .../shorthand-method-args.src.js              |   5 +
 tests/lib/ecma-features.js                    |   2 +-
 tests/lib/tester.js                           |   1 +
 7 files changed, 1212 insertions(+), 1 deletion(-)
 create mode 100644 tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.result.js
 create mode 100644 tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.src.js
 create mode 100644 tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.result.js
 create mode 100644 tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.src.js

diff --git a/espree.js b/espree.js
index e65cf07f..e085d2d5 100644
--- a/espree.js
+++ b/espree.js
@@ -275,6 +275,35 @@ pp.extend("parseTopLevel", function(parseTopLevel) {
     };
 });
 
+pp.extend("toAssignable", function(toAssignable) {
+
+    return /** @this acorn.Parser */ function(node, isBinding) {
+
+        if (extra.ecmaFeatures.experimentalObjectRestSpread &&
+                node.type === "ObjectExpression"
+        ) {
+            node.type = "ObjectPattern";
+
+            for (var i = 0; i < node.properties.length; i++) {
+                var prop = node.properties[i];
+
+                if (prop.type === "ExperimentalSpreadProperty") {
+                    prop.type = "ExperimentalRestProperty";
+                } else if (prop.kind !== "init") {
+                    this.raise(prop.key.start, "Object pattern can't contain getter or setter");
+                } else {
+                    this.toAssignable(prop.value, isBinding);
+                }
+            }
+
+            return node;
+        } else {
+            return toAssignable.call(this, node, isBinding);
+        }
+    };
+
+});
+
 /**
  * Method to parse an object rest or object spread.
  * @returns {ASTNode} The node representing object rest or object spread.
diff --git a/tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.result.js b/tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.result.js
new file mode 100644
index 00000000..49acb2b8
--- /dev/null
+++ b/tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.result.js
@@ -0,0 +1,549 @@
+module.exports = {
+  "type": "Program",
+  "body": [
+    {
+      "type": "ExpressionStatement",
+      "expression": {
+        "type": "AssignmentExpression",
+        "operator": "=",
+        "left": {
+          "type": "ObjectPattern",
+          "properties": [
+            {
+              "type": "Property",
+              "key": {
+                "type": "Identifier",
+                "name": "a",
+                "range": [
+                  2,
+                  3
+                ],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 2
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 3
+                  }
+                }
+              },
+              "value": {
+                "type": "Identifier",
+                "name": "a",
+                "range": [
+                  2,
+                  3
+                ],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 2
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 3
+                  }
+                }
+              },
+              "kind": "init",
+              "method": false,
+              "shorthand": true,
+              "computed": false,
+              "range": [
+                2,
+                3
+              ],
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 2
+                },
+                "end": {
+                  "line": 1,
+                  "column": 3
+                }
+              }
+            },
+            {
+              "type": "ExperimentalRestProperty",
+              "argument": {
+                "type": "Identifier",
+                "name": "b",
+                "range": [
+                  8,
+                  9
+                ],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 8
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 9
+                  }
+                }
+              },
+              "range": [
+                5,
+                9
+              ],
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 5
+                },
+                "end": {
+                  "line": 1,
+                  "column": 9
+                }
+              }
+            }
+          ],
+          "range": [
+            1,
+            10
+          ],
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 1
+            },
+            "end": {
+              "line": 1,
+              "column": 10
+            }
+          }
+        },
+        "right": {
+          "type": "ObjectExpression",
+          "properties": [
+            {
+              "type": "Property",
+              "key": {
+                "type": "Identifier",
+                "name": "a",
+                "range": [
+                  14,
+                  15
+                ],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 14
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 15
+                  }
+                }
+              },
+              "value": {
+                "type": "Identifier",
+                "name": "a",
+                "range": [
+                  14,
+                  15
+                ],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 14
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 15
+                  }
+                }
+              },
+              "kind": "init",
+              "method": false,
+              "shorthand": true,
+              "computed": false,
+              "range": [
+                14,
+                15
+              ],
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 14
+                },
+                "end": {
+                  "line": 1,
+                  "column": 15
+                }
+              }
+            },
+            {
+              "type": "ExperimentalSpreadProperty",
+              "argument": {
+                "type": "Identifier",
+                "name": "b",
+                "range": [
+                  20,
+                  21
+                ],
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 20
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 21
+                  }
+                }
+              },
+              "range": [
+                17,
+                21
+              ],
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 17
+                },
+                "end": {
+                  "line": 1,
+                  "column": 21
+                }
+              }
+            }
+          ],
+          "range": [
+            13,
+            22
+          ],
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 13
+            },
+            "end": {
+              "line": 1,
+              "column": 22
+            }
+          }
+        },
+        "range": [
+          1,
+          22
+        ],
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 1
+          },
+          "end": {
+            "line": 1,
+            "column": 22
+          }
+        }
+      },
+      "range": [
+        0,
+        23
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 0
+        },
+        "end": {
+          "line": 1,
+          "column": 23
+        }
+      }
+    }
+  ],
+  "sourceType": "script",
+  "range": [
+    0,
+    23
+  ],
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 23
+    }
+  },
+  "tokens": [
+    {
+      "type": "Punctuator",
+      "value": "(",
+      "range": [
+        0,
+        1
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 0
+        },
+        "end": {
+          "line": 1,
+          "column": 1
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "{",
+      "range": [
+        1,
+        2
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 1
+        },
+        "end": {
+          "line": 1,
+          "column": 2
+        }
+      }
+    },
+    {
+      "type": "Identifier",
+      "value": "a",
+      "range": [
+        2,
+        3
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 2
+        },
+        "end": {
+          "line": 1,
+          "column": 3
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": ",",
+      "range": [
+        3,
+        4
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 3
+        },
+        "end": {
+          "line": 1,
+          "column": 4
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "...",
+      "range": [
+        5,
+        8
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 5
+        },
+        "end": {
+          "line": 1,
+          "column": 8
+        }
+      }
+    },
+    {
+      "type": "Identifier",
+      "value": "b",
+      "range": [
+        8,
+        9
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 8
+        },
+        "end": {
+          "line": 1,
+          "column": 9
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "}",
+      "range": [
+        9,
+        10
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 9
+        },
+        "end": {
+          "line": 1,
+          "column": 10
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "=",
+      "range": [
+        11,
+        12
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 11
+        },
+        "end": {
+          "line": 1,
+          "column": 12
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "{",
+      "range": [
+        13,
+        14
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 13
+        },
+        "end": {
+          "line": 1,
+          "column": 14
+        }
+      }
+    },
+    {
+      "type": "Identifier",
+      "value": "a",
+      "range": [
+        14,
+        15
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 14
+        },
+        "end": {
+          "line": 1,
+          "column": 15
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": ",",
+      "range": [
+        15,
+        16
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 15
+        },
+        "end": {
+          "line": 1,
+          "column": 16
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "...",
+      "range": [
+        17,
+        20
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 17
+        },
+        "end": {
+          "line": 1,
+          "column": 20
+        }
+      }
+    },
+    {
+      "type": "Identifier",
+      "value": "b",
+      "range": [
+        20,
+        21
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 20
+        },
+        "end": {
+          "line": 1,
+          "column": 21
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": "}",
+      "range": [
+        21,
+        22
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 21
+        },
+        "end": {
+          "line": 1,
+          "column": 22
+        }
+      }
+    },
+    {
+      "type": "Punctuator",
+      "value": ")",
+      "range": [
+        22,
+        23
+      ],
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 22
+        },
+        "end": {
+          "line": 1,
+          "column": 23
+        }
+      }
+    }
+  ]
+};
diff --git a/tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.src.js b/tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.src.js
new file mode 100644
index 00000000..0caa3fab
--- /dev/null
+++ b/tests/fixtures/ecma-features/experimentalObjectRestSpread/destructuring-assign-mirror.src.js
@@ -0,0 +1 @@
+({a, ...b} = {a, ...b})
diff --git a/tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.result.js b/tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.result.js
new file mode 100644
index 00000000..bb091b07
--- /dev/null
+++ b/tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.result.js
@@ -0,0 +1,626 @@
+module.exports = {
+  "type": "Program",
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 5,
+      "column": 3
+    }
+  },
+  "range": [0, 108],
+  "sourceType": "script",
+  "body": [
+    {
+      "type": "ExpressionStatement",
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 0
+        },
+        "end": {
+          "line": 5,
+          "column": 3
+        }
+      },
+      "expression": {
+        "type": "ObjectExpression",
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 1
+          },
+          "end": {
+            "line": 5,
+            "column": 1
+          }
+        },
+        "properties": [
+          {
+            "type": "Property",
+            "loc": {
+              "start": {
+                "line": 2,
+                "column": 4
+              },
+              "end": {
+                "line": 4,
+                "column": 5
+              }
+            },
+            "method": true,
+            "shorthand": false,
+            "computed": false,
+            "key": {
+              "type": "Identifier",
+              "loc": {
+                "start": {
+                  "line": 2,
+                  "column": 4
+                },
+                "end": {
+                  "line": 2,
+                  "column": 14
+                }
+              },
+              "name": "initialize",
+              "range": [
+                7,
+                17
+              ],
+            },
+            "kind": "init",
+            "value": {
+              "type": "FunctionExpression",
+              "loc": {
+                "start": {
+                  "line": 2,
+                  "column": 14
+                },
+                "end": {
+                  "line": 4,
+                  "column": 5
+                }
+              },
+              "id": null,
+              "generator": false,
+              "expression": false,
+              "params": [
+                {
+                  "type": "ObjectPattern",
+                  "loc": {
+                    "start": {
+                      "line": 2,
+                      "column": 15
+                    },
+                    "end": {
+                      "line": 2,
+                      "column": 46
+                    }
+                  },
+                  "properties": [
+                    {
+                      "type": "Property",
+                      "loc": {
+                        "start": {
+                          "line": 2,
+                          "column": 16
+                        },
+                        "end": {
+                          "line": 2,
+                          "column": 23
+                        }
+                      },
+                      "method": false,
+                      "shorthand": true,
+                      "computed": false,
+                      "key": {
+                        "type": "Identifier",
+                        "loc": {
+                          "start": {
+                            "line": 2,
+                            "column": 16
+                          },
+                          "end": {
+                            "line": 2,
+                            "column": 23
+                          }
+                        },
+                        "name": "someVar",
+                        "range": [
+                          19,
+                          26
+                        ],
+                      },
+                      "kind": "init",
+                      "value": {
+                        "type": "Identifier",
+                        "loc": {
+                          "start": {
+                            "line": 2,
+                            "column": 16
+                          },
+                          "end": {
+                            "line": 2,
+                            "column": 23
+                          }
+                        },
+                        "name": "someVar",
+                        "range": [
+                          19,
+                          26
+                        ],
+                      },
+                      "range": [
+                        19,
+                        26
+                      ],
+                    },
+                    {
+                      "type": "Property",
+                      "loc": {
+                        "start": {
+                          "line": 2,
+                          "column": 25
+                        },
+                        "end": {
+                          "line": 2,
+                          "column": 33
+                        }
+                      },
+                      "method": false,
+                      "shorthand": true,
+                      "computed": false,
+                      "key": {
+                        "type": "Identifier",
+                        "loc": {
+                          "start": {
+                            "line": 2,
+                            "column": 25
+                          },
+                          "end": {
+                            "line": 2,
+                            "column": 33
+                          }
+                        },
+                        "name": "otherVar",
+                        "range": [
+                          28,
+                          36
+                        ],
+                      },
+                      "kind": "init",
+                      "value": {
+                        "type": "Identifier",
+                        "loc": {
+                          "start": {
+                            "line": 2,
+                            "column": 25
+                          },
+                          "end": {
+                            "line": 2,
+                            "column": 33
+                          }
+                        },
+                        "name": "otherVar",
+                        "range": [
+                          28,
+                          36
+                        ],
+                      },
+                      "range": [
+                        28,
+                        36
+                      ],
+                    },
+                    {
+                      "type": "ExperimentalRestProperty",
+                      "loc": {
+                        "start": {
+                          "line": 2,
+                          "column": 35
+                        },
+                        "end": {
+                          "line": 2,
+                          "column": 45
+                        }
+                      },
+                      "argument": {
+                        "type": "Identifier",
+                        "loc": {
+                          "start": {
+                            "line": 2,
+                            "column": 38
+                          },
+                          "end": {
+                            "line": 2,
+                            "column": 45
+                          }
+                        },
+                        "name": "options",
+                        "range": [
+                          41,
+                          48
+                        ],
+                      },
+                      "range": [
+                        38,
+                        48
+                      ]
+                    }
+                  ],
+                  "range": [
+                    18,
+                    49
+                  ],
+                }
+              ],
+              "body": {
+                "type": "BlockStatement",
+                "loc": {
+                  "start": {
+                    "line": 2,
+                    "column": 48
+                  },
+                  "end": {
+                    "line": 4,
+                    "column": 5
+                  }
+                },
+                "body": [],
+                "range": [
+                  51,
+                  104
+                ],
+              },
+              "range": [
+                17,
+                104
+              ],
+            },
+            "range": [
+              7,
+              104
+            ],
+          }
+        ],
+        "range": [
+          1,
+          106
+        ],
+      },
+      "range": [
+        0,
+        108
+      ],
+    }
+  ],
+  "tokens": [
+    {
+      "type": "Punctuator",
+      "value": "(",
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 0
+        },
+        "end": {
+          "line": 1,
+          "column": 1
+        }
+      },
+      "range": [
+        0,
+        1
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "{",
+      "loc": {
+        "start": {
+          "line": 1,
+          "column": 1
+        },
+        "end": {
+          "line": 1,
+          "column": 2
+        }
+      },
+      "range": [
+        1,
+        2
+      ]
+    },
+    {
+      "type": "Identifier",
+      "value": "initialize",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 4
+        },
+        "end": {
+          "line": 2,
+          "column": 14
+        }
+      },
+      "range": [
+        7,
+        17
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "(",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 14
+        },
+        "end": {
+          "line": 2,
+          "column": 15
+        }
+      },
+      "range": [
+        17,
+        18
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "{",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 15
+        },
+        "end": {
+          "line": 2,
+          "column": 16
+        }
+      },
+      "range": [
+        18,
+        19
+      ]
+    },
+    {
+      "type": "Identifier",
+      "value": "someVar",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 16
+        },
+        "end": {
+          "line": 2,
+          "column": 23
+        }
+      },
+      "range": [
+        19,
+        26
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": ",",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 23
+        },
+        "end": {
+          "line": 2,
+          "column": 24
+        }
+      },
+      "range": [
+        26,
+        27
+      ]
+    },
+    {
+      "type": "Identifier",
+      "value": "otherVar",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 25
+        },
+        "end": {
+          "line": 2,
+          "column": 33
+        }
+      },
+      "range": [
+        28,
+        36
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": ",",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 33
+        },
+        "end": {
+          "line": 2,
+          "column": 34
+        }
+      },
+      "range": [
+        36,
+        37
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "...",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 35
+        },
+        "end": {
+          "line": 2,
+          "column": 38
+        }
+      },
+      "range": [
+        38,
+        41
+      ]
+    },
+    {
+      "type": "Identifier",
+      "value": "options",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 38
+        },
+        "end": {
+          "line": 2,
+          "column": 45
+        }
+      },
+      "range": [
+        41,
+        48
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "}",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 45
+        },
+        "end": {
+          "line": 2,
+          "column": 46
+        }
+      },
+      "range": [
+        48,
+        49
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": ")",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 46
+        },
+        "end": {
+          "line": 2,
+          "column": 47
+        }
+      },
+      "range": [
+        49,
+        50
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "{",
+      "loc": {
+        "start": {
+          "line": 2,
+          "column": 48
+        },
+        "end": {
+          "line": 2,
+          "column": 49
+        }
+      },
+      "range": [
+        51,
+        52
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "}",
+      "loc": {
+        "start": {
+          "line": 4,
+          "column": 4
+        },
+        "end": {
+          "line": 4,
+          "column": 5
+        }
+      },
+      "range": [
+        103,
+        104
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": "}",
+      "loc": {
+        "start": {
+          "line": 5,
+          "column": 0
+        },
+        "end": {
+          "line": 5,
+          "column": 1
+        }
+      },
+      "range": [
+        105,
+        106
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": ")",
+      "loc": {
+        "start": {
+          "line": 5,
+          "column": 1
+        },
+        "end": {
+          "line": 5,
+          "column": 2
+        }
+      },
+      "range": [
+        106,
+        107
+      ]
+    },
+    {
+      "type": "Punctuator",
+      "value": ";",
+      "loc": {
+        "start": {
+          "line": 5,
+          "column": 2
+        },
+        "end": {
+          "line": 5,
+          "column": 3
+        }
+      },
+      "range": [
+        107,
+        108
+      ]
+    }
+  ]
+};
diff --git a/tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.src.js b/tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.src.js
new file mode 100644
index 00000000..4247e4a5
--- /dev/null
+++ b/tests/fixtures/ecma-features/experimentalObjectRestSpread/shorthand-method-args.src.js
@@ -0,0 +1,5 @@
+({
+    initialize({someVar, otherVar, ...options}) {
+        // ... do some stuff with options ...
+    }
+});
diff --git a/tests/lib/ecma-features.js b/tests/lib/ecma-features.js
index 47931581..7eac23ce 100644
--- a/tests/lib/ecma-features.js
+++ b/tests/lib/ecma-features.js
@@ -49,7 +49,7 @@ var testFiles = shelljs.find(FIXTURES_DIR).filter(function(filename) {
 }).map(function(filename) {
     return filename.substring(FIXTURES_DIR.length - 1, filename.length - 7);  // strip off ".src.js"
 // }).filter(function(filename) {
-//     return /simple-new-target/.test(filename);
+//     return /experimental/.test(filename);
 });
 
 
diff --git a/tests/lib/tester.js b/tests/lib/tester.js
index bcdcbb6f..6b94a383 100644
--- a/tests/lib/tester.js
+++ b/tests/lib/tester.js
@@ -78,6 +78,7 @@ module.exports = {
             }
 
         }
+
         assert.deepEqual(result, expected);
     }
 };