Added code coverage support to Godot #36572
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skimmedsquare
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Oct 28, 2021
Based on godotengine#36572 which added support for Linux
akien-mga
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Aug 29, 2023
This would cause `updown.png` to be ignored in our default theme in 3.x. These ignores were added in godotengine#36800 for godotengine#36572 (see that PR for usage instructions). From a quick test, using `--output-file` for `lcov` and `--output-directory` for genhtml let us output the files in a way that won't conflict with the Git repository (e.g. in `bin/`, or outside the Git repo).
akien-mga
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Aug 29, 2023
This would cause `updown.png` to be ignored in our default theme in 3.x. These ignores were added in godotengine#36800 for godotengine#36572 (see that PR for usage instructions). From a quick test, using `--output-file` for `lcov` and `--output-directory` for genhtml let us output the files in a way that won't conflict with the Git repository (e.g. in `bin/`, or outside the Git repo). (cherry picked from commit 5c38e42)
akien-mga
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Sep 6, 2023
This would cause `updown.png` to be ignored in our default theme in 3.x. These ignores were added in godotengine#36800 for godotengine#36572 (see that PR for usage instructions). From a quick test, using `--output-file` for `lcov` and `--output-directory` for genhtml let us output the files in a way that won't conflict with the Git repository (e.g. in `bin/`, or outside the Git repo). (cherry picked from commit 5c38e42)
mandryskowski
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Oct 11, 2023
This would cause `updown.png` to be ignored in our default theme in 3.x. These ignores were added in godotengine#36800 for godotengine#36572 (see that PR for usage instructions). From a quick test, using `--output-file` for `lcov` and `--output-directory` for genhtml let us output the files in a way that won't conflict with the Git repository (e.g. in `bin/`, or outside the Git repo).
YuriSizov
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Jan 23, 2024
This would cause `updown.png` to be ignored in our default theme in 3.x. These ignores were added in godotengine#36800 for godotengine#36572 (see that PR for usage instructions). From a quick test, using `--output-file` for `lcov` and `--output-directory` for genhtml let us output the files in a way that won't conflict with the Git repository (e.g. in `bin/`, or outside the Git repo). (cherry picked from commit 5c38e42)
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Code Coverage is a simple and easy method to find unreachable code and optimize functions which are called the most.
Required Tools
The only needed tools are(tested only on Linux, I'm not sure if macOS or Windows can run this):
gcc or clang
gcov
lcov
sudo apt install gcc gcov lcov clangUsage
Go to Godot directory
cd ~/godotCompile Godot with coverage support -
scons p=x11 -j6 use_coverage=yesRun project/editor with compiled version of Godot etc. -
bin/godot.x11.tools.64 --path ~/Projekty/Godot-ProjectExit project
Run lcov capture command -
lcov --directory ./ --capture --output-file godot.infoGenerate HTML -
genhtml godot.info --ignore-errors sourceRun index.html from folder
to clear results execute
lcov --zerocountersHTML file with code coverage of core/class_db.cpp when I runned The Worst Godot Project(remove .txt and open in browser) - lcov.html.txt
Report look like this:
