Project: xlsxwriter

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 11407
Lines covered 3239
Code coverage 28.39%
Code coverage report Report link
Static reachability 0.00%
Fuzz Introspector report Report link (from 2025-09-27)

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
xlsxwriter.chart.Chart._assemble_xml_file xlsxwriter.chart 908 0.0%
xlsxwriter.chart.Chart._write_chart xlsxwriter.chart 872 0.0%
xlsxwriter.chart.Chart._write_plot_area xlsxwriter.chart 813 0.0%
xlsxwriter.chart_scatter.ChartScatter._write_plot_area xlsxwriter.chart_scatter 626 0.0%
xlsxwriter.chart_stock.ChartStock._write_chart_type xlsxwriter.chart_stock 556 0.0%
xlsxwriter.chart_line.ChartLine._write_chart_type xlsxwriter.chart_line 554 0.0%
xlsxwriter.chart_stock.ChartStock._write_stock_chart xlsxwriter.chart_stock 553 0.0%
xlsxwriter.chart_line.ChartLine._write_line_chart xlsxwriter.chart_line 551 0.0%
xlsxwriter.chart_bar.ChartBar._write_chart_type xlsxwriter.chart_bar 539 0.0%
xlsxwriter.chart_column.ChartColumn._write_chart_type xlsxwriter.chart_column 538 0.0%