[openwrt/openwrt] build: include tests/Makefile if available

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch openwrt-23.05:
https://git.openwrt.org/d8dd03c46fd484dea9ea8f787a342de85e7cf7d3

commit d8dd03c46fd484dea9ea8f787a342de85e7cf7d3
Author: Paul Spooren <mail at aparcar.org>
AuthorDate: Thu Jun 6 19:28:52 2024 +0200

    build: include tests/Makefile if available
    
    Testing OpenWrt is important, and there is a test suite in the making.
    For maximum convenience and minimal CI over-usage, make it simple to run
    tests locally. The main Makefile now attempts to include
    `tests/Makefile` and silently fails if it doesn't.
    
    While the test suite[1] is still young, it provides good examples of how
    to test things around OpenWrt: starting with shell scripts using
    `bats`[2], followed by QEMU tests, and finally real device tests using
    LabGrid[3]. This could lead to the creation of the best OpenWrt version
    yet.
    
    Please consult the `openwrt-tests.git` README.md for details on the
    setup. Once installed you may run commands like the following:
    
    * make tests/shell  # run shell tests
    * make tests/x86-64 # run  and test x86/64 in QEMU
    
    [1]: http://github.com/aparcar/openwrt-tests/
    [2]: https://bats-core.readthedocs.io
    [3]: https://labgrid.readthedocs.io
    
    Signed-off-by: Paul Spooren <mail at aparcar.org>
    Link: https://github.com/openwrt/openwrt/pull/15647
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
    (cherry picked from commit a8ff0c1b7e5aefb8bcd31e0eeb82d2c11399223f)
---
 Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Makefile b/Makefile
index 9bdb03a443..7c52acccba 100644
--- a/Makefile
+++ b/Makefile
@@ -40,6 +40,9 @@ else
   include tools/Makefile
   include toolchain/Makefile
 
+# Include the test suite Makefile if it exists
+-include tests/Makefile
+
 $(toolchain/stamp-compile): $(tools/stamp-compile) $(if $(CONFIG_BUILDBOT),toolchain_rebuild_check)
 $(target/stamp-compile): $(toolchain/stamp-compile) $(tools/stamp-compile) $(BUILD_DIR)/.prepared
 $(package/stamp-compile): $(target/stamp-compile) $(package/stamp-cleanup)