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packages/babel-helper-transform-fixture-test-runner/src/index.js

Summary

Maintainability
D
2 days
Test Coverage

Function run has a Cognitive Complexity of 46 (exceeds 5 allowed). Consider refactoring.
Open

function run(task) {
  const {
    actual,
    expect: expected,
    exec,
Severity: Minor
Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 7 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 run has 125 lines of code (exceeds 25 allowed). Consider refactoring.
Open

function run(task) {
  const {
    actual,
    expect: expected,
    exec,
Severity: Major
Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 5 hrs to fix

    File index.js has 328 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    /* eslint-env jest */
import * as babel from "@babel/core";
import { buildExternalHelpers } from "@babel/core";
import getFixtures from "@babel/helper-fixtures";
import sourceMap from "source-map";
    Severity: Minor
    Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 3 hrs to fix

      Function default has 47 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

      export default function (
  fixturesLoc: string,
  name: string,
  suiteOpts = {},
  taskOpts = {},
      Severity: Minor
      Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 1 hr to fix

        Function getOpts has 28 lines of code (exceeds 25 allowed). Consider refactoring.
        Open

          function getOpts(self) {
    const newOpts = merge(
      {
        cwd: path.dirname(self.loc),
        filename: self.loc,
        Severity: Minor
        Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 1 hr to fix

          Avoid deeply nested control flow statements.
          Open

                          if (result && typeof result.then === "function") {
                  return result;
                }
          Severity: Major
          Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 45 mins to fix

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

              fixturesLoc: string,
  name: string,
  suiteOpts = {},
  taskOpts = {},
  dynamicOpts?: Function,
            Severity: Minor
            Found in packages/babel-helper-transform-fixture-test-runner/src/index.js - About 35 mins to fix

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

                    const spy2 = jest.spyOn(console, "warn").mockImplementation(msg => {
        actualLogs.stderr += `${msg}\n`;
      });
              Severity: Minor
              Found in packages/babel-helper-transform-fixture-test-runner/src/index.js and 1 other location - About 45 mins to fix
              packages/babel-helper-transform-fixture-test-runner/src/index.js on lines 208..210

              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 50.

              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

                    const spy1 = jest.spyOn(console, "log").mockImplementation(msg => {
        actualLogs.stdout += `${msg}\n`;
      });
              Severity: Minor
              Found in packages/babel-helper-transform-fixture-test-runner/src/index.js and 1 other location - About 45 mins to fix
              packages/babel-helper-transform-fixture-test-runner/src/index.js on lines 211..213

              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 50.

              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

                const {
    actual,
    expect: expected,
    exec,
    options: opts,
              Severity: Minor
              Found in packages/babel-helper-transform-fixture-test-runner/src/index.js and 1 other location - About 35 mins to fix
              packages/babel-preset-env/src/index.js on lines 142..162

              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 46.

              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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