Project: parsimonious

Language python
OSS-Fuzz project link
Project repository link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 1
Lines of code 3655
Lines covered 1760
Code coverage 48.15%
Code coverage report Report link
Static reachability 27.63%
Fuzz Introspector report Report link (from 2025-08-28)

Historical Progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
parsimonious.nodes.RuleDecoratorMeta.__new__ parsimonious.nodes 182 0.0%
parsimonious.expressions.Expression.__str__ parsimonious.expressions 59 0.0%
parsimonious.expressions.Expression.as_rule parsimonious.expressions 56 0.0%
parsimonious.utils.StrAndRepr.__repr__ parsimonious.utils 30 0.0%
parsimonious.expressions.Expression.__eq__ parsimonious.expressions 24 0.0%
parsimonious.expressions.expression parsimonious.expressions 23 0.0%
parsimonious.nodes.Node.__str__ parsimonious.nodes 21 0.0%
parsimonious.expressions.Compound._eq_check_cycles parsimonious.expressions 21 0.0%
parsimonious.nodes.Node.prettily parsimonious.nodes 18 0.0%
parsimonious.nodes.NodeVisitor.parse parsimonious.nodes 18 0.0%