From a02b892e2ad1e1605ff942c63afdd618daa48be4 Mon Sep 17 00:00:00 2001
From: Gene Pasquet <dev@etenil.net>
Date: Fri, 17 Apr 2026 16:52:41 +0100
Subject: Migrate tests to the test egg

---
 Makefile | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index f550c31..f196633 100644
--- a/Makefile
+++ b/Makefile
@@ -37,7 +37,7 @@ bin/%.o: %.scm | bin
 	csc -c -J -unit downstroke-$* $*.scm -o bin/$*.o -I bin
 	@if [ -f downstroke-$*.import.scm ]; then mv downstroke-$*.import.scm bin/; fi
 
-.PHONY: clean test engine demos
+.PHONY: clean test engine demos filter
 
 clean:
 	rm -rf bin downstroke/
@@ -59,6 +59,17 @@ test:
 	@csi -s tests/scene-loader-test.scm
 	@csi -s tests/tween-test.scm
 
+# Run a single test file with optional name/group filtering (pytest -k style).
+#   make filter FILE=tests/physics-test.scm            # whole file
+#   make filter FILE=tests/physics-test.scm K=gravity  # tests matching regex
+#   make filter FILE=tests/physics-test.scm G=apply    # groups matching regex
+# Note: combining K/G with TEST_QUIET=1 hits a known bug in the `test` egg
+# (modulo error in summary timing), so this target intentionally doesn't
+# expose Q. Use `TEST_QUIET=1 csi -s <file>` directly when you want quiet.
+filter:
+	@if [ -z "$(FILE)" ]; then echo "usage: make filter FILE=<test.scm> [K=name-regex] [G=group-regex]"; exit 2; fi
+	@$(if $(K),TEST_FILTER='$(K)') $(if $(G),TEST_GROUP_FILTER='$(G)') csi -s $(FILE)
+
 demos: engine $(DEMO_BINS)
 
 bin/demo-%: demo/%.scm $(OBJECT_FILES) | bin
-- 
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