Code coverage report for mute.js

# all files / __root__/ mute.js

77.03% Statements 57/74
57.14% Branches 28/49
93.33% Functions 14/15
79.1% Lines 53/67

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     var Stream = require('stream')

    module.exports = MuteStream

    // var out = new MuteStream(process.stdout)
    // argument auto-pipes
    function MuteStream (opts) {
      Stream.apply(this)
      opts = opts || {}
      this.writable = this.readable = true
      this.muted = false
      this.on('pipe', this._onpipe)
      this.replace = opts.replace

      // For readline-type situations
      // This much at the start of a line being redrawn after a ctrl char
      // is seen (such as backspace) won't be redrawn as the replacement
      this._prompt = opts.prompt || null
      this._hadControl = false
    }

    MuteStream.prototype = Object.create(Stream.prototype)

    Object.defineProperty(MuteStream.prototype, 'constructor', {
      value: MuteStream,
      enumerable: false
    })

    MuteStream.prototype.mute = function () {
      this.muted = true
    }

    MuteStream.prototype.unmute = function () {
      this.muted = false
    }

    Object.defineProperty(MuteStream.prototype, '_onpipe', {
      value: onPipe,
      enumerable: false,
      writable: true,
      configurable: true
    })

    function onPipe (src) {
      this._src = src
    }

    Object.defineProperty(MuteStream.prototype, 'isTTY', {
      get: getIsTTY,
      set: setIsTTY,
      enumerable: true,
      configurable: true
    })

    function getIsTTY () {
      return( (this._dest) ? this._dest.isTTY
            : (this._src) ? this._src.isTTY
            : false
            )
    }

    // basically just get replace the getter/setter with a regular value
    function setIsTTY (isTTY) {
      Object.defineProperty(this, 'isTTY', {
        value: isTTY,
        enumerable: true,
        writable: true,
        configurable: true
      })
    }

    Object.defineProperty(MuteStream.prototype, 'rows', {
      get: function () {
        return( this._dest ? this._dest.rows
              : this._src ? this._src.rows
              : undefined )
      }, enumerable: true, configurable: true })

    Object.defineProperty(MuteStream.prototype, 'columns', {
      get: function () {
        return( this._dest ? this._dest.columns
              : this._src ? this._src.columns
              : undefined )
      }, enumerable: true, configurable: true })

    MuteStream.prototype.pipe = function (dest, options) {
      this._dest = dest
      return Stream.prototype.pipe.call(this, dest, options)
    }

    MuteStream.prototype.pause = function () {
      Eif (this._src) return this._src.pause()
    }

    MuteStream.prototype.resume = function () {
      Eif (this._src) return this._src.resume()
    }

    MuteStream.prototype.write = function (c) {
      if (this.muted) {
        if (!this.replace) return true
        Iif (c.match(/^\u001b/)) {
          if(c.indexOf(this._prompt) === 0) {
            c = c.substr(this._prompt.length);
            c = c.replace(/./g, this.replace);
            c = this._prompt + c;
          }
          this._hadControl = true
          return this.emit('data', c)
        } else {
          Iif (this._prompt && this._hadControl &&
              c.indexOf(this._prompt) === 0) {
            this._hadControl = false
            this.emit('data', this._prompt)
            c = c.substr(this._prompt.length)
          }
          c = c.toString().replace(/./g, this.replace)
        }
      }
      this.emit('data', c)
    }

    MuteStream.prototype.end = function (c) {
      Eif (this.muted) {
        Iif (c && this.replace) {
          c = c.toString().replace(/./g, this.replace)
        } else {
          c = null
        }
      }
      Iif (c) this.emit('data', c)
      this.emit('end')
    }

    function proxy (fn) { return function () {
      var d = this._dest
      var s = this._src
      if (d && d[fn]) d[fn].apply(d, arguments)
      if (s && s[fn]) s[fn].apply(s, arguments)
    }}

    MuteStream.prototype.destroy = proxy('destroy')
    MuteStream.prototype.destroySoon = proxy('destroySoon')
    MuteStream.prototype.close = proxy('close')