# HG changeset patch
# User Greg Ward <greg@gerg.ca>
# Date 1446850925 18000
# Node ID c2a772ade409699130bbac1a31319c932b3858b5
# Parent  681f675401ff79dbe6d5129c3789bd013aa2b982
README: update instructions for running tests.

diff --git a/README b/README
--- a/README
+++ b/README
@@ -42,10 +42,15 @@
 for guidelines on the patch description.
 
 Please don't forget to update and run the tests when you fix a bug or
-add a feature. To run the tests:
+add a feature. To run the tests, you need a working copy of Mercurial,
+say in $HGSRC:
 
     cd tests
-    python run-tests.py --with-hg=/path/to/hg
+    python $HGSRC/tests/run-tests.py --with-hg=$HGSRC/hg
+
+(evolve's stable and default branches correspond to Mercurial's stable
+and default branches. So to test evolve from default, you need
+Mercurial on default.)
 
 
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