[PATCH] t/README: mention test files are make targets

["Philippe Blain via GitGitGadget" <gitgitgadget@gmail.com>]

From: Philippe Blain <levraiphilippeblain@gmail.com>

Since 23fc63bf8f (make tests ignorable with "make -i", 2005-11-08), each
test file defines a target in the test Makefile, such that one can
invoke:

	make *checkout*

to run all tests with 'checkout' in their filename. This is useful to
run a subset of tests when you have a good idea of what part of the code
is touched by the changes your are testing.

Document that in t/README to help new (or more seasoned) contributors
that might not be aware.

Signed-off-by: Philippe Blain <levraiphilippeblain@gmail.com>
---
    t/README: mention test files are make targets

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-1701%2Fphil-blain%2Ftests-makefile-targets-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-1701/phil-blain/tests-makefile-targets-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/1701

 t/README | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/t/README b/t/README
index 621d3b8c095..71211109338 100644
--- a/t/README
+++ b/t/README
@@ -32,6 +32,13 @@ the tests.
     ok 2 - plain with GIT_WORK_TREE
     ok 3 - plain bare
 
+t/Makefile defines a target for each test file, such that you can also use
+shell pattern matching to run a subset of the tests:
+
+    make *checkout*
+
+will run all tests with 'checkout' in their filename.
+
 Since the tests all output TAP (see https://testanything.org) they can
 be run with any TAP harness. Here's an example of parallel testing
 powered by a recent version of prove(1):

base-commit: 3e0d3cd5c7def4808247caf168e17f2bbf47892b
-- 
gitgitgadget