dev-python/zope-i18nmessageid: Fix running tests

Closes: https://bugs.gentoo.org/775062
Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/zope-i18nmessageid/zope-i18nmessageid-5.0.1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -21,10 +21,17 @@ LICENSE="ZPL"
 SLOT="0"
 KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
 
-RDEPEND="dev-python/six[${PYTHON_USEDEP}]
+RDEPEND="
+	dev-python/namespace-zope[${PYTHON_USEDEP}]
+	dev-python/six[${PYTHON_USEDEP}]
 	dev-python/zope-interface[${PYTHON_USEDEP}]"
 
-distutils_enable_tests setup.py
+distutils_enable_tests unittest
+
+python_test() {
+	"${EPYTHON}" -m unittest discover -v -s "${BUILD_DIR}"/lib ||
+		die "Tests failed with ${EPYTHON}"
+}
 
 python_install_all() {
 	distutils-r1_python_install_all