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mutation_test

1.8.153K downloads/modomohuhn/mutation-test ↗New releases in your daily digest, changelog included.

A command line application to measure the quality of your test cases by mutating your code and checking if your tests detect the changes.

Last release 25 days ago
12 Sep 2026
Release timing varies
gaps range from 5 weeks to 1.2 years
Nearly every release is documented
notes for 16 of 16 stable releases
Nothing withdrawn
no release was ever pulled
4 years old
16 releases · first in 2022

Release timeline

16 releases since 2022

20222023202420252026

20222026

One column per quarter.

Releases

1.8.112 Sept 2026Deprecated2 sources agree
Deprecated markdown and XML reports. Please use html and xunit instead.
Added "part" and "part of" to the default exclusion list

The test runner will no longer wait for all eternity if a process has a timeout but ignores SIGKILL

Deprecated markdown and XML reports. Please use html and xunit instead.
Open source →
1.8.09 Feb 20262 sources agree
The input files element now accepts the wildcards * and in its path
The input files element now accepts the wildcards * and ** in its path

Added an option to exclude whole directories in the exclude tag. These options also accept the wildcards * and **.
Open source →

1.7.116 Nov 20252 sources agree

Fixed issues when inferring test commands: the working directory will be set to the current directory and on windows the commands are run inside a she

Fixed issues when inferring test commands: the working directory will be set to the current directory and on windows the commands are run inside a shell environment

Open source →

1.7.01 Sept 20242 sources agree

Added new builtin rules that remove lines of code (void function calls and contents of arrays)

Added new builtin rules that remove lines of code (void function calls and contents of arrays)
Coverage information is provided in the html report: line numbers of instrumented lines are displayed in red and executed lines are displayed in green
Fixed a problem when the user provides quality thresholds

Open source →

1.6.025 Oct 20232 sources agree

Added the option to exclude lines not covered by tests. You can pass a file with coverage information in the lcov format via the command line flag "--

Added the option to exclude lines not covered by tests. You can pass a file with coverage information in the lcov format via
the command line flag "--coverage".
Added the (experimental) option to strings from the mutations via command line switch.
Added a mutation that removes break statements from switches for C or C++

Open source →

1.5.14 Sept 2023

Fixed a bug that may cause the mutation test to stop in case the mutation reduces the code size near the end of the file.

Fixed a bug that may cause the mutation test to stop in case the mutation reduces the code size near the end of the file.

Open source →

Additional notes

Fixed a bug that causes the mutation test to stop in case the mutation reduces the code size near the end of the file.

Open source →

1.5.01 Aug 20232 sources agree

Optional function arguments are no longer swapped

Optional function arguments are no longer swapped
If no test command is given, the program will try to infer it from pubspec.yaml
A single invocation of the program will now always produce a single report named mutation-test in the given output directory
Added a section in the readme explaining how to do an incremental analysis

Open source →

1.4.024 May 20232 sources agree

Added junit/xunit style XML reports to conform to the standard for test tools. It should now be possible to upload the results in tools like Polarion.

Added junit/xunit style XML reports to conform to the standard for test tools.
It should now be possible to upload the results in tools like Polarion.
Performing a dry run will now generate the specified outputs. All mutations
defined by the rules will be marked as undetected.
Added optional "id" attribute to rules in the xml configuration file
xml configuration file version increased to 1.1
Added a column in the generated html report that shows the mutation pattern and id
Require dart 3

Open source →

1.3.49 Apr 20232 sources agree

Improved mutation rules that switch function arguments

Improved mutation rules that switch function arguments
Updated dependencies

Open source →

1.3.34 Feb 2023

Improved builtin rules with operators like "+=". There should be less useless mutations that are always detected now.

Improved builtin rules with operators like "+=". There should be less useless mutations that are always detected now.
The <exclude> element in xml rule definitions now supports the exclusion of files by listing them as <file> element.

Open source →

Additional notes

Improve builtin rules with operators like "+=". There should be less useless mutations that are always detected now.
The <exclude> element in xml rule definitions now supports the exclusion of files by listing them as <file> element.

Open source →

1.3.230 Dec 20222 sources agree

Added builtin rules to swap arguments on function calls.

Added builtin rules to swap arguments on function calls.
Added a dark theme (prefers-color-scheme: dark) for html reports.

Open source →

1.3.130 Oct 2022

Fixed bugs when creating reports.

Fixed bugs when creating reports.
Added additional unit tests so that the files are listed in coverage metrics

Open source →

1.3.029 Oct 2022

Files without mutations are now no longer reported as NaN % mutations

Files without mutations are now no longer reported as NaN % mutations
Detected and mutations with timeouts are reported in the generated html
Updated the builtin rules to not test for +-0 and to exclude ++ and --

Open source →

1.2.215 May 2022

Fixed minor problems with the generated html files. Source code strings are escaped and a table was fixed.

Fixed minor problems with the generated html files. Source code strings are escaped and a table was fixed.

Open source →

1.2.17 May 2022

Renamed executable to "mutation_test" follow dart file conventions.

Renamed executable to "mutation_test" follow dart file conventions.
Added exclusion rules for dart import and export statements in the default rule set.

Open source →

1.2.07 May 2022

Html reports are prettier. The look of the files is inspired by the lcov reports.

Html reports are prettier. The look of the files is inspired by the lcov reports.
Running the program without any arguments no longer causes an error. Instead, the program will assume that you are using a dart project, so alle files in lib/ will be mutated and tested via dart test.

Open source →

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