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: 843803bcc248b18cdefb29d610a1371e32e815ce)

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

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

@@ -26,6 +26,7 @@ PTESTS_FAST = "\
     liberror-perl-ptest \
     libmodule-build-perl-ptest \
     libpcre-ptest \
+    libpng-ptest \
     libtimedate-perl-ptest \
     libtest-needs-perl-ptest \
     liburi-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_1.6.37.bb

@@ -10,7 +10,10 @@ 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[md5sum] = "015e8e15db1eecde5f2eb9eb5b6e59e9"
 SRC_URI[sha256sum] = "505e70834d35383537b6491e7ae8641f1a4bed1876dbfe361201fc80868d88ca"
 
@@ -20,7 +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)}"
@@ -33,3 +36,11 @@ BBCLASSEXTEND = "native nativesdk"
 
 # CVE-2019-17371 is actually a memory leak in gif2png 2.x
 CVE_CHECK_WHITELIST += "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}"
+}