codeclimate/python-test-reporter

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Cyclomatic complexity is too high in method run. (9)
Open

    def run(self):
        """
        The main function.

        Pre-process args, handle some special types of invocations,

Cyclomatic Complexity

Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

Construct Effect on CC Reasoning
if +1 An if statement is a single decision.
elif +1 The elif statement adds another decision.
else +0 The else statement does not cause a new decision. The decision is at the if.
for +1 There is a decision at the start of the loop.
while +1 There is a decision at the while statement.
except +1 Each except branch adds a new conditional path of execution.
finally +0 The finally block is unconditionally executed.
with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
assert +1 The assert statement internally roughly equals a conditional statement.
Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

Source: http://radon.readthedocs.org/en/latest/intro.html

Cyclomatic complexity is too high in method validate. (6)
Open

    def validate(self):
        if not self.__commit_sha():
            raise InvalidPayload("A git commit sha was not found in the test report payload")
        elif not self.__committed_at():
            raise InvalidPayload("A git commit timestamp was not found in the test report payload")

Cyclomatic Complexity

Cyclomatic Complexity corresponds to the number of decisions a block of code contains plus 1. This number (also called McCabe number) is equal to the number of linearly independent paths through the code. This number can be used as a guide when testing conditional logic in blocks.

Radon analyzes the AST tree of a Python program to compute Cyclomatic Complexity. Statements have the following effects on Cyclomatic Complexity:

Construct Effect on CC Reasoning
if +1 An if statement is a single decision.
elif +1 The elif statement adds another decision.
else +0 The else statement does not cause a new decision. The decision is at the if.
for +1 There is a decision at the start of the loop.
while +1 There is a decision at the while statement.
except +1 Each except branch adds a new conditional path of execution.
finally +0 The finally block is unconditionally executed.
with +1 The with statement roughly corresponds to a try/except block (see PEP 343 for details).
assert +1 The assert statement internally roughly equals a conditional statement.
Comprehension +1 A list/set/dict comprehension of generator expression is equivalent to a for loop.
Boolean Operator +1 Every boolean operator (and, or) adds a decision point.

Source: http://radon.readthedocs.org/en/latest/intro.html

Function run has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

    def run(self):
        """
        The main function.

        Pre-process args, handle some special types of invocations,
Severity: Minor
Found in codeclimate_test_reporter/components/runner.py - About 45 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

Avoid too many return statements within this function.
Open

            return self.__handle_error(
Severity: Major
Found in codeclimate_test_reporter/components/runner.py - About 30 mins to fix

    Avoid too many return statements within this function.
    Open

                return self.__handle_error(str(e), support=True)
    Severity: Major
    Found in codeclimate_test_reporter/components/runner.py - About 30 mins to fix

      Avoid too many return statements within this function.
      Open

                  return self.__handle_error(str(e))
      Severity: Major
      Found in codeclimate_test_reporter/components/runner.py - About 30 mins to fix

        Avoid too many return statements within this function.
        Open

                    return self.__handle_error("Invalid Payload: " + str(e), support=True)
        Severity: Major
        Found in codeclimate_test_reporter/components/runner.py - About 30 mins to fix

          Function validate has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
          Open

              def validate(self):
                  if not self.__commit_sha():
                      raise InvalidPayload("A git commit sha was not found in the test report payload")
                  elif not self.__committed_at():
                      raise InvalidPayload("A git commit timestamp was not found in the test report payload")
          Severity: Minor
          Found in codeclimate_test_reporter/components/payload_validator.py - About 25 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

          Line length
          Open

          These configuration instructions refer to a language-specific test reporter which is now deprecated in favor of our new unified test reporter client. The [new test reporter](https://docs.codeclimate.com/v1.0/docs/configuring-test-coverage) is faster, distributed as a static binary, has support for parallelized CI builds, and will receive ongoing support by the team here. The existing test reporters for Ruby, Python, PHP, and Javascript are now deprecated.
          Severity: Info
          Found in README.md by markdownlint

          MD013 - Line length

          Tags: line_length

          Aliases: line-length Parameters: linelength, codeblocks, tables (number; default 80, boolean; default true)

          This rule is triggered when there are lines that are longer than the configured line length (default: 80 characters). To fix this, split the line up into multiple lines.

          This rule has an exception where there is no whitespace beyond the configured line length. This allows you to still include items such as long URLs without being forced to break them in the middle.

          You also have the option to exclude this rule for code blocks and tables. To do this, set the code_blocks and/or tables parameters to false.

          Code blocks are included in this rule by default since it is often a requirement for document readability, and tentatively compatible with code rules. Still, some languages do not lend themselves to short lines.

          Expected 2 blank lines after class or function definition, found 1
          Open

          if __name__ == '__main__':
          Severity: Minor
          Found in codeclimate_test_reporter/__main__.py by pep8

          Separate top-level function and class definitions with two blank lines.

          Method definitions inside a class are separated by a single blank
          line.
          
          Extra blank lines may be used (sparingly) to separate groups of
          related functions.  Blank lines may be omitted between a bunch of
          related one-liners (e.g. a set of dummy implementations).
          
          Use blank lines in functions, sparingly, to indicate logical
          sections.
          
          Okay: def a():\n    pass\n\n\ndef b():\n    pass
          Okay: def a():\n    pass\n\n\nasync def b():\n    pass
          Okay: def a():\n    pass\n\n\n# Foo\n# Bar\n\ndef b():\n    pass
          Okay: default = 1\nfoo = 1
          Okay: classify = 1\nfoo = 1
          
          E301: class Foo:\n    b = 0\n    def bar():\n        pass
          E302: def a():\n    pass\n\ndef b(n):\n    pass
          E302: def a():\n    pass\n\nasync def b(n):\n    pass
          E303: def a():\n    pass\n\n\n\ndef b(n):\n    pass
          E303: def a():\n\n\n\n    pass
          E304: @decorator\n\ndef a():\n    pass
          E305: def a():\n    pass\na()
          E306: def a():\n    def b():\n        pass\n    def c():\n        pass
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