[OE-core][PATCH v5] libconfig: add ptest support

[Pratik Farkase <pratik.farkase@est.tech>]

Add ptest support to enable automated testing of libconfig
using ptest-runner.

The implementation uses libtool --mode=install to properly
install test binaries, avoiding issues with libtool wrapper
scripts. Tests are built via 'make check TESTS=' to compile
without running during the build phase.

The test suite includes 16 tests covering parsing, formatting,
binary/hex values, escaped strings, and various edge cases.
All tests pass successfully on qemux86-64 :
START: ptest-runner
BEGIN: /usr/lib/libconfig/ptest
[TEST] ParsingAndFormatting
parsing testdata/input_0.cfg
parsing testdata/input_1.cfg
parsing testdata/input_2.cfg
parsing testdata/input_3.cfg
parsing testdata/input_4.cfg
parsing testdata/input_5.cfg
parsing testdata/input_6.cfg
parsing testdata/input_7.cfg
[ OK ] ParsingAndFormatting

[TEST] ParseInvalidFiles
[ OK ] ParseInvalidFiles

[TEST] ParseInvalidStrings
[ OK ] ParseInvalidStrings

[TEST] BigInt1
[ OK ] BigInt1

[TEST] BigInt2
[ OK ] BigInt2

[TEST] BigInt3
[ OK ] BigInt3

[TEST] BigInt4
[ OK ] BigInt4

[TEST] BigInt5
[ OK ] BigInt5

[TEST] BigInt6
[ OK ] BigInt6

[TEST] BigInt7
[ OK ] BigInt7

[TEST] RemoveSetting
[ OK ] RemoveSetting

[TEST] EscapedStrings
[ OK ] EscapedStrings

[TEST] OverrideSetting
[ OK ] OverrideSetting

[TEST] SettingLookups
[ OK ] SettingLookups

[TEST] ReadStream
[ OK ] ReadStream

[TEST] BinaryAndHex
some auto big hex: 4294967296
some auto big bin: 8589934591
negativehex: -1430532899
[ OK ] BinaryAndHex

16 tests; 16 passed, 0 failed
PASS: libconfig_tests
DURATION: 0
END: /usr/lib/libconfig/ptest
STOP: ptest-runner
TOTAL: 1 FAIL: 0

Signed-off-by: Pratik Farkase <pratik.farkase@est.tech>

---
Changes in v5:
- Remove existence checks from run-ptest

Changes in v4:
- Remove conditional installation guards in do_install_ptest()

Changes in v3:
- Use ${B}/libtool instead of libtool from PATH
- Fixes TMPDIR build path leakage
- Resolves ptest runtime dependency QA warnings

Changes in v2:
- Removed RDEPENDS on bash
---
 meta/conf/distro/include/ptest-packagelists.inc     |  1 +
 meta/recipes-extended/libconfig/libconfig/run-ptest | 12 ++++++++++++
 meta/recipes-extended/libconfig/libconfig_1.8.2.bb  | 13 ++++++++++++-
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100755 meta/recipes-extended/libconfig/libconfig/run-ptest

diff --git a/meta/conf/distro/include/ptest-packagelists.inc b/meta/conf/distro/include/ptest-packagelists.inc
index 739995bcfe..7c5810f252 100644
--- a/meta/conf/distro/include/ptest-packagelists.inc
+++ b/meta/conf/distro/include/ptest-packagelists.inc
@@ -29,6 +29,7 @@ PTESTS_FAST = "\
     json-c \
     json-glib \
     libcheck \
+    libconfig \
     libconvert-asn1-perl \
     libexif \
     libgpg-error\
diff --git a/meta/recipes-extended/libconfig/libconfig/run-ptest b/meta/recipes-extended/libconfig/libconfig/run-ptest
new file mode 100755
index 0000000000..047d9554be
--- /dev/null
+++ b/meta/recipes-extended/libconfig/libconfig/run-ptest
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+cd tests
+
+for t in libconfig_tests; do
+    ./$t
+    if [ $? -eq 0 ]; then
+        echo "PASS: $t"
+    else
+        echo "FAIL: $t"
+    fi
+done
diff --git a/meta/recipes-extended/libconfig/libconfig_1.8.2.bb b/meta/recipes-extended/libconfig/libconfig_1.8.2.bb
index 6e08a7b04b..c3582828f7 100644
--- a/meta/recipes-extended/libconfig/libconfig_1.8.2.bb
+++ b/meta/recipes-extended/libconfig/libconfig_1.8.2.bb
@@ -9,6 +9,7 @@ LIC_FILES_CHKSUM = "file://COPYING.LIB;md5=17c8e32f0f72580cc2906b409d46b5ac"
 
 SRC_URI = " \
     git://github.com/hyperrealm/libconfig.git;protocol=https;branch=master;tag=v${PV} \
+    file://run-ptest \
 "
 SRCREV = "a42cb47c1526a4f2ed025fcbb2289863375bc898"
 
@@ -17,7 +18,7 @@ DEPENDS += "bison-native flex-native"
 
 UPSTREAM_CHECK_GITTAGREGEX = "^v(?P<pver>\d+(\.\d+)+)$"
 
-inherit autotools pkgconfig
+inherit autotools pkgconfig ptest
 
 PACKAGE_BEFORE_PN = "${PN}++"
 FILES:${PN}++ = "${libdir}/${BPN}++*${SOLIBS}"
@@ -27,3 +28,13 @@ do_compile:prepend() {
     rm -f ${S}/lib/grammar.[ch]
     rm -f ${S}/lib/scanner.[ch]
 }
+
+do_compile_ptest() {
+    oe_runmake -C tests check TESTS=
+}
+
+do_install_ptest() {
+    install -d ${D}${PTEST_PATH}/tests
+    ${B}/libtool --mode=install install -m 0755 ${B}/tests/libconfig_tests ${D}${PTEST_PATH}/tests/libconfig_tests
+    cp -r ${S}/tests/testdata ${D}${PTEST_PATH}/tests/
+}
-- 
2.43.0