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karma-runner/karma

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client/karma.js

Summary

Maintainability
F
2 wks
Test Coverage

Function Karma has a Cognitive Complexity of 99 (exceeds 5 allowed). Consider refactoring.
Open

function Karma (updater, socket, iframe, opener, navigator, location, document) {
  this.updater = updater
  var startEmitted = false
  var self = this
  var queryParams = util.parseQueryParams(location.search)
Severity: Minor
Found in client/karma.js - About 1 day to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Function Karma has 229 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function Karma (updater, socket, iframe, opener, navigator, location, document) {
  this.updater = updater
  var startEmitted = false
  var self = this
  var queryParams = util.parseQueryParams(location.search)
Severity: Major
Found in client/karma.js - About 1 day to fix

    Function navigateContextTo has 39 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      function navigateContextTo (url) {
    if (self.config.useIframe === false) {
      // run in new window
      if (self.config.runInParent === false) {
        // If there is a window already open, then close it
    Severity: Minor
    Found in client/karma.js - About 1 hr to fix

      Function complete has 29 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

        this.complete = function (result) {
    if (resultsBuffer.length) {
      socket.emit('result', resultsBuffer)
      resultsBuffer = []
    }
      Severity: Minor
      Found in client/karma.js - About 1 hr to fix

        Function result has 26 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          this.result = function (originalResult) {
    var convertedResult = {}

    // Convert all array-like objects to real arrays.
    for (var propertyName in originalResult) {
        Severity: Minor
        Found in client/karma.js - About 1 hr to fix

          Function Karma has 7 arguments (exceeds 4 allowed). Consider refactoring.
          Open

          function Karma (updater, socket, iframe, opener, navigator, location, document) {
          Severity: Major
          Found in client/karma.js - About 50 mins to fix

            Avoid deeply nested control flow statements.
            Open

                        if (ele.tagName && ele.tagName.toLowerCase() === 'script') {
              var tmp = ele
              ele = document.createElement('script')
              ele.src = policy.createScriptURL(tmp.src)
              ele.crossOrigin = tmp.crossOrigin
            Severity: Major
            Found in client/karma.js - About 45 mins to fix

              Function error has 5 arguments (exceeds 4 allowed). Consider refactoring.
              Open

                this.error = function (messageOrEvent, source, lineno, colno, error) {
              Severity: Minor
              Found in client/karma.js - About 35 mins to fix

                Identical blocks of code found in 2 locations. Consider refactoring.
                Open

                function Karma (updater, socket, iframe, opener, navigator, location, document) {
  this.updater = updater
  var startEmitted = false
  var self = this
  var queryParams = util.parseQueryParams(location.search)
                Severity: Major
                Found in client/karma.js and 1 other location - About 2 wks to fix
                static/karma.js on lines 15..332

                Duplicated Code

                Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                Tuning

                This issue has a mass of 2354.

                We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                Refactorings

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