From 9ce38228e86f292aa612ae5c7737dfceaedceda9 Mon Sep 17 00:00:00 2001
From: Mathieu Lirzin <mthl@gnu.org>
Date: Sun, 25 Mar 2018 07:41:55 +0200
Subject: maint: Document how to get code coverage reports

* HACKING <Code coverage>: New section.
---
 HACKING | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/HACKING b/HACKING
index 039e9d1..e51515c 100644
--- a/HACKING
+++ b/HACKING
@@ -58,6 +58,14 @@ follows.
   repositories by running "cd build-aux; ./gnu-fetch".  In case any file in the
   Mcron repository has been updated, commit and re-run the testsuite.
 
+* Code coverage
+
+  Assuming 'lcov' is installed, it is possible to check the actual code
+  coverage achieved by the test suite by running the following commands:
+
+  $ make check SCM_LOG_DRIVER_FLAGS="--coverage=yes"
+  $ genhtml tests/*.info --output-directory out
+
 -----
 
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