patch 8.1.2087: cannot easily select one test function to execute Commit: https://github.com/vim/vim/commit/a7f6c3cf071bb6267e0bd2eb3d27ca240381ba87 Author: Bram Moolenaar <Bram@vim.org> Date: Fri Sep 27 15:34:16 2019 +0200 patch 8.1.2087: cannot easily select one test function to execute Problem: Cannot easily select one test function to execute. Solution: Support the $TEST_FILTER environment variable. (Ozaki Kiichi, closes #2695)

--- a/src/Makefile
+++ b/src/Makefile
@@ -2262,6 +2262,10 @@ test1 \
 
 # Run individual NEW style test.
 # These do not depend on the executable, compile it when needed.
+# Set $TEST_FILTER to select what test function to invoke, e.g.:
+#	export TEST_FILTER=Test_terminal_wipe_buffer
+# A partial match also works:
+#	export TEST_FILTER=wipe_buffer
 $(NEW_TESTS):
 	cd testdir; $(MAKE) $@ VIMPROG=../$(VIMTESTTARGET) $(GUI_TESTARG) SCRIPTSOURCE=../$(SCRIPTSOURCE)