mark poetry tests as xfail on windows (#1474)

* Mark poetry tests as xfail on windows

* Update tests/integration/test_package_int.py

Co-Authored-By: Anthony Sottile <asottile@umich.edu>

* fix formatting

Signed-off-by: Bernat Gabor <bgabor8@bloomberg.net>

Author: RonnyPfannschmidt

docs/changelog/1474.misc.rst

@@ -0,0 +1 @@
+Mark poetry related tests as xfail since its dependency pyrsistent won't install in ci due to missing wheels/build deps. - by :user:`RonnyPfannschmidt`

tests/integration/test_package_int.py

@@ -78,6 +78,9 @@ def test_package_flit(initproj, cmd):
 
 @pytest.mark.network
 @pytest.mark.skipif(sys.version_info < (3, 0), reason="poetry is Python 3 only")
+@pytest.mark.xfail(
+    os.name == "nt", reason="https://github.com/tobgu/pyrsistent/issues/88 breaks poetry install",
+)
 def test_package_poetry(initproj, cmd):
     initproj(
         "magic-0.1",