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Generate coverage information for Vim scripts.

Project description

covimerage

Generates code coverage information for Vim scripts.

It parses the output from Vim's :profile command, and generates data compatible with Coverage.py.

NOTE: this develop branch will be squash-merged into master after some stabilization (1-2 weeks).

Build Status codecov Codacy Badge

Installation

You can install covimerage using pip:

pip install covimerage

Simple usage

You can use covimerage run to wrap the call to Neovim/Vim with necessary boilerplate:

covimerage run vim -Nu test/vimrc -c 'Vader! test/**'

This will write the file .coverage_covimerage by default (use --data-file to configure it), which is compatible with Coverage.py. A report is automatically generated (on stdout).

You can then call covimerage xml to create a coverage.xml file (Cobertura-compatible), which tools like Codecov's codecov tool can consume, e.g. via codecov -f coverage.xml.

Manual/advanced usage

1. Generate profile information for your Vim script(s)

You have to basically add the following to your tests vimrc:

profile start /tmp/vim-profile.txt
profile! file ./*

This makes Neovim/Vim then write a file with profiling information.

2. Call covimerage on the output file(s)

covimerage write_coverage /tmp/vim-profile.txt

This will create a file .coverage_covimerage (the default for --data-file), with entries marked for processing by a Coverage.py plugin (provided by covimerage)).

3. Include the covimerage plugin in .coveragerc

When using coverage on the generated output (data file), you need to add the covimerage plugin to the .coveragerc file (which Coverage.py uses). This is basically all the .coveragerc you will need, but you could use other settings here (for Coverage.py), e.g. to omit some files:

[run]
plugins = covimerage
data_file = .coverage_covimerage

4. Create the report(s)

You can now call e.g. coverage report -m, and you should be able to use coverage reporting platforms like https://codecov.io/ or https://coveralls.io, which are basically using coverage xml.

Reference implementation

Links

TODO

Project details


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