libpng: Add ptest for libpng

libpng is a platform-independent library which
supports all PNG features.
This ptest executes the below binaries, parses
the png image and prints the image features.

1. pngfix - provides information about PNG image
copyrights details.

2. pngtest - tests, optimizes and optionally fixes
the zlib header in PNG files.

3. pngstest - verifies the integrity of PNG image by
dumping chunk level information.

4. timepng - provides details about PNG image chunks.

(From OE-Core rev: 2d58b38185ca7eed5d885b8d00ca549b57138554)

Signed-off-by: Nikhil R <nikhil.r@kpit.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/conf/distro/include/ptest-packagelists.inc

@@ -29,6 +29,7 @@ PTESTS_FAST = "\
     libnl-ptest \
     libmodule-build-perl-ptest \
     libpcre-ptest \
+    libpng-ptest \
     libssh2-ptest \
     libtimedate-perl-ptest \
     libtest-needs-perl-ptest \

meta/recipes-multimedia/libpng/files/run-ptest

@@ -0,0 +1,29 @@
+#!/bin/sh
+
+set -eux
+
+./pngfix pngtest.png &> log.txt  2>&1
+
+if grep -i "OK" log.txt 2>&1 ; then
+   echo "PASS: pngfix passed"
+else
+   echo "FAIL: pngfix failed"
+fi
+rm -f log.txt
+
+./pngtest pngtest.png &> log.txt 2>&1
+
+if grep -i "PASS" log.txt 2>&1 ; then
+   echo "PASS: pngtest passed"
+else
+   echo "FAIL: pngtest failed"
+fi
+rm -f log.txt
+
+for i in pngstest timepng; do
+    if "./${i}" pngtest.png 2>&1; then
+        echo "PASS: $i"
+    else
+        echo "FAIL: $i"
+    fi
+done

meta/recipes-multimedia/libpng/libpng_1.6.39.bb

@@ -10,7 +10,11 @@ DEPENDS = "zlib"
 
 LIBV = "16"
 
-SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/${BP}.tar.xz"
+SRC_URI = "\
+           ${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/${BP}.tar.xz \
+           file://run-ptest \
+           "
+
 SRC_URI[sha256sum] = "1f4696ce70b4ee5f85f1e1623dc1229b210029fa4b7aee573df3e2ba7b036937"
 
 MIRRORS += "${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/ ${SOURCEFORGE_MIRROR}/${BPN}/${BPN}${LIBV}/older-releases/"
@@ -19,7 +23,7 @@ UPSTREAM_CHECK_URI = "http://libpng.org/pub/png/libpng.html"
 
 BINCONFIG = "${bindir}/libpng-config ${bindir}/libpng16-config"
 
-inherit autotools binconfig-disabled pkgconfig
+inherit autotools binconfig-disabled pkgconfig ptest
 
 # Work around missing symbols
 EXTRA_OECONF:append:class-target = " ${@bb.utils.contains("TUNE_FEATURES", "neon", "--enable-arm-neon=on", "--enable-arm-neon=off", d)}"
@@ -32,3 +36,11 @@ BBCLASSEXTEND = "native nativesdk"
 
 # CVE-2019-17371 is actually a memory leak in gif2png 2.x
 CVE_CHECK_IGNORE += "CVE-2019-17371"
+
+do_install_ptest() {
+    install -m644 "${S}/pngtest.png" "${D}${PTEST_PATH}"
+    install -m755 "${B}/.libs/pngfix" "${D}${PTEST_PATH}"
+    install -m755 "${B}/.libs/pngtest" "${D}${PTEST_PATH}"
+    install -m755 "${B}/.libs/pngstest" "${D}${PTEST_PATH}"
+    install -m755 "${B}/.libs/timepng" "${D}${PTEST_PATH}"
+}