dev-tex/dvi2gr: add missing test dep

Closes: https://bugs.gentoo.org/313697
Package-Manager: Portage-3.0.19, Repoman-3.0.3
Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>

dev-tex/dvi2gr/dvi2gr-0.4-r1.ebuild

@@ -1,9 +1,9 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
 
-inherit toolchain-funcs
+inherit toolchain-funcs virtualx
 
 DESCRIPTION="DVI to Grace translator"
 HOMEPAGE="https://plasma-gate.weizmann.ac.il/Grace/"
@@ -12,10 +12,17 @@ SRC_URI="ftp://plasma-gate.weizmann.ac.il/pub/grace/src/devel/${P}.tar.gz"
 SLOT="0"
 LICENSE="GPL-2"
 KEYWORDS="~amd64 ~x86"
-IUSE="examples"
+
+IUSE="examples test"
+#RESTRICT="!test? ( test )"
+# Still missing some fontpackage, but which?
+RESTRICT="test"
 
 DEPEND="media-libs/t1lib"
 RDEPEND="${DEPEND}"
+BDEPEND="test? (
+	sci-visualization/grace
+)"
 
 src_prepare() {
 	tc-export CC
@@ -30,14 +37,18 @@ src_prepare() {
 src_install() {
 	dobin ${PN}
 	if use examples; then
-		insinto /usr/share/doc/${PF}/examples
-		doins *.ti runtest.sh
+		docinto /usr/share/doc/${PF}/examples
+		dodoc *.ti runtest.sh
 	fi
 
 	insinto /usr/share/${PN}
 	doins -r fonts
 }
 
+src_test() {
+	virtx default
+}
+
 pkg_postinst() {
 	einfo "Don't forget install the TeX-Fonts in Grace"
 	einfo "  /usr/share/${PN}/fonts/FontDataBase"