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karma-runner/karma

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lib/cli.js

Summary

Maintainability
F
3 days
Test Coverage

Function processArgs has a Cognitive Complexity of 33 (exceeds 5 allowed). Consider refactoring.
Open

function processArgs (argv, options, fs, path) {
  Object.getOwnPropertyNames(argv).forEach(function (name) {
    let argumentValue = argv[name]
    if (name !== '_' && name !== '$0') {
      if (Array.isArray(argumentValue)) {
Severity: Minor
Found in lib/cli.js - About 4 hrs 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 processArgs has 91 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function processArgs (argv, options, fs, path) {
  Object.getOwnPropertyNames(argv).forEach(function (name) {
    let argumentValue = argv[name]
    if (name !== '_' && name !== '$0') {
      if (Array.isArray(argumentValue)) {
Severity: Major
Found in lib/cli.js - About 3 hrs to fix

    File cli.js has 285 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    'use strict'

const path = require('path')
const yargs = require('yargs')
const fs = require('graceful-fs')
    Severity: Minor
    Found in lib/cli.js - About 2 hrs to fix

      Function run has 38 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      exports.run = async () => {
  const cliOptions = exports.process()
  const cmd = cliOptions.cmd // prevent config from changing the command
  const cmdNeedsConfig = cmd === 'start' || cmd === 'run' || cmd === 'stop'
  if (cmdNeedsConfig) {
      Severity: Minor
      Found in lib/cli.js - About 1 hr to fix

        Function describeStart has 32 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

        function describeStart (yargs) {
  yargs
    .usage('Karma - Spectacular Test Runner for JavaScript.\n\n' +
      'START - Start the server / do a single run.\n\n' +
      'Usage:\n' +
        Severity: Minor
        Found in lib/cli.js - About 1 hr to fix

          Function describeRun has 30 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

          function describeRun (yargs) {
  yargs
    .usage('Karma - Spectacular Test Runner for JavaScript.\n\n' +
      'RUN - Run the tests (requires running server).\n\n' +
      'Usage:\n' +
          Severity: Minor
          Found in lib/cli.js - About 1 hr to fix

            Function run has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
            Open

            exports.run = async () => {
  const cliOptions = exports.process()
  const cmd = cliOptions.cmd // prevent config from changing the command
  const cmdNeedsConfig = cmd === 'start' || cmd === 'run' || cmd === 'stop'
  if (cmdNeedsConfig) {
            Severity: Minor
            Found in lib/cli.js - About 55 mins 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

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

              yargs
    .usage('Karma - Spectacular Test Runner for JavaScript.\n\n' +
      'START - Start the server / do a single run.\n\n' +
      'Usage:\n' +
      '  $0 start [configFile]')
            Severity: Major
            Found in lib/cli.js and 1 other location - About 4 hrs to fix
            lib/cli.js on lines 215..236

            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 125.

            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

            Further Reading

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

              yargs
    .usage('Karma - Spectacular Test Runner for JavaScript.\n\n' +
      'RUN - Run the tests (requires running server).\n\n' +
      'Usage:\n' +
      '  $0 run [configFile] [-- <clientArgs>]')
            Severity: Major
            Found in lib/cli.js and 1 other location - About 4 hrs to fix
            lib/cli.js on lines 180..198

            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 125.

            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

            Further Reading

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