Added 'make test-cover' to allow easy compare of coverage before push…

… to PR.
doorstop-dev · Jan 25, 2024 · 6834d6a · 6834d6a
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diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -60,6 +60,12 @@ Clean everything:
 $ make clean
 ```
 
+Compare coverage to current `develop` branch to see if changes causes reduced coverage.
+Please run before creating a PR.
+```sh
+$ make test-cover
+```
+
 ## Automatic
 
 Keep all of the above tasks running on change:

diff --git a/Makefile b/Makefile
@@ -111,6 +111,13 @@ ifndef DISABLE_COVERAGE
 	poetry run coveragespace update overall
 endif
 
+.PHONY: test-cover
+test-cover: install
+# Run first to generate coverage data current code.
+	TEST_INTEGRATION=true poetry run pytest doorstop --doctest-modules --cov=doorstop --cov-report=xml --cov-report=term-missing
+# Run second to generate coverage data for the code in the develop branch.
+	TEST_INTEGRATION=true diff-cover ./coverage.xml --compare-branch=$(shell git for-each-ref --sort=-committerdate refs/heads/develop | cut -f 1 -d ' ')
+
 .PHONY: read-coverage
 read-coverage:
 	bin/open htmlcov/index.html