dev-python/coverage: Bump to 4.5.4, start fixing tests

Signed-off-by: Michał Górny <mgorny@gentoo.org>

dev-python/coverage/coverage-4.5.4.ebuild

@@ -0,0 +1,50 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+PYTHON_COMPAT=( python2_7 python3_{5,6,7} pypy pypy3 )
+PYTHON_REQ_USE="threads(+)"
+
+inherit distutils-r1
+
+DESCRIPTION="Code coverage measurement for Python"
+HOMEPAGE="https://coverage.readthedocs.io/en/latest/ https://pypi.org/project/coverage/"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+RDEPEND=""
+BDEPEND="
+	>=dev-python/setuptools-18.4[${PYTHON_USEDEP}]
+	test? (
+		dev-python/PyContracts[${PYTHON_USEDEP}]
+		dev-python/flaky[${PYTHON_USEDEP}]
+		dev-python/mock[${PYTHON_USEDEP}]
+		>=dev-python/unittest-mixins-1.4[${PYTHON_USEDEP}]
+	)
+"
+
+src_prepare() {
+	# avoid the dep on xdist
+	sed -i -e '/^addopts/s:-n3::' setup.cfg || die
+	distutils-r1_src_prepare
+}
+
+python_compile() {
+	if [[ ${EPYTHON} == python2.7 ]]; then
+		local CFLAGS="${CFLAGS} -fno-strict-aliasing"
+		export CFLAGS
+	fi
+
+	distutils-r1_python_compile
+}
+
+python_test() {
+	distutils_install_for_testing
+	"${EPYTHON}" igor.py test_with_tracer py || die
+	"${EPYTHON}" igor.py test_with_tracer c || die
+}