A GitHub Action that does single-action code coverage generation.
The action needs a nightly compiler and llvm-tools available.
It will invoke cargo test and generate a coverage/coverage.lcov file which
can be uploaded to codecov for example.
This action basically does all the steps that are described in the unstable book.
# the action needs a nightly toolchain with llvm-tools
- uses: actions-rs/toolchain@v1
with:
profile: minimal
toolchain: nightly
components: llvm-tools-preview
# runs cargo with defaults flags, using the default `lcov` output
- uses: Swatinem/fucov@v1
# afterwards, upload the report to codecov
- uses: codecov/codecov-action@v1
with:
directory: coverageNOTE that you do need a nightly toolchain with the llvm-tools-preview
component installed, as this action will use the included llvm-profdata/cov tools.
: args
Arguments for the cargo test command. Defaults to --workspace --all-features.
: output-format
The desired output format. One of lcov, json, html or profdata. Defaults to lcov.
: output-filename
The desired output filename. Defaults to coverage/coverage.$ext, depending on the chosen output-format.
This repo has some testcases included, which yield the following coverage results:
There are a few known issues around doctests: