remove debug symbols when cleaning, added a simple test

diff --git a/doc/educational_decoder/Makefile b/doc/educational_decoder/Makefile
index 27b184154e2cf8e9b2c8bb2bf369fb3e6897b46e..451c2351bc7e9f99adfc6bc73b42dcac1a031101 100644 (file)
--- a/doc/educational_decoder/Makefile
+++ b/doc/educational_decoder/Makefile
@@ -19,3 +19,11 @@ harness: $(HARNESS_FILES)
 
 clean:
        @$(RM) -f harness
+       @$(RM) -rf harness.dSYM
+
+test: harness
+       @zstd README.md -o tmp.zst
+       @./harness tmp.zst tmp
+       @diff -s tmp README.md
+       @$(RM) -f tmp*
+       @make clean