3 hrs
Test Coverage

BookDetailViewModel has 29 functions (exceeds 20 allowed). Consider refactoring.

class BookDetailViewModel(Observable, EventSender):
    _player: Player = inject.attr(Player)
    _fs_monitor: FilesystemMonitor = inject.attr("FilesystemMonitor")
    _offline_cache: OfflineCache = inject.attr(OfflineCache)
    _settings: Settings = inject.attr(Settings)
Severity: Minor
Found in cozy/view_model/ - About 3 hrs to fix

    Cyclomatic complexity is too high in method _on_player_event. (6)

        def _on_player_event(self, event, message):
            if not
            if event == "play" or event == "pause":

    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.


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