games-emulation/hatari: depend on imagemagick-tools[png] for tests

I think(?) it's able to skip some tests if missing, but does not cope
well when it's found and png is disabled which is rare so may be why
it took so long to be noticed.

Closes: https://bugs.gentoo.org/957522
Signed-off-by: Ionen Wolkens <ionen@gentoo.org>

games-emulation/hatari/hatari-2.5.0.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=8
 
-PYTHON_COMPAT=( python3_{10..13} )
+PYTHON_COMPAT=( python3_{11..13} )
 inherit cmake python-single-r1 xdg
 
 DESCRIPTION="Atari ST emulator"
@@ -13,11 +13,12 @@ SRC_URI="https://download.tuxfamily.org/hatari/${PV}/${P}.tar.bz2"
 LICENSE="GPL-2+"
 SLOT="0"
 KEYWORDS="~amd64 ~x86"
-IUSE="X capsimage capstone gui png portmidi readline udev zlib"
+IUSE="X capsimage capstone gui png portmidi readline test udev zlib"
 REQUIRED_USE="
 	${PYTHON_REQUIRED_USE}
 	png? ( zlib )
 "
+RESTRICT="!test? ( test )"
 
 COMMON_DEPEND="
 	media-libs/libsdl2[X?,joystick,sound,video]
@@ -43,7 +44,10 @@ DEPEND="
 	${COMMON_DEPEND}
 	X? ( x11-base/xorg-proto )
 "
-BDEPEND="${PYTHON_DEPS}"
+BDEPEND="
+	${PYTHON_DEPS}
+	test? ( virtual/imagemagick-tools[png] )
+"
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-2.3.1-caps5-include-path.patch