Respect TMPDIR instead of hardcoding /tmp in test_bintree.py

It was breaking the Portage sandbox.

Signed-off-by: James Le Cuirot <chewi@gentoo.org>

lib/portage/tests/dbapi/test_bintree.py

@@ -17,14 +17,18 @@ def test_required_init_params(self):
             binarytree()
         self.assertEqual(str(cm.exception), "pkgdir parameter is required")
         with self.assertRaises(TypeError) as cm:
-            binarytree(pkgdir="/tmp")
+            binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"))
         self.assertEqual(str(cm.exception), "settings parameter is required")
 
     def test_init_with_legacy_params_warns(self):
         with self.assertWarns(DeprecationWarning):
-            binarytree(_unused=None, pkgdir="/tmp", settings=MagicMock())
+            binarytree(
+                _unused=None, pkgdir=os.getenv("TMPDIR", "/tmp"), settings=MagicMock()
+            )
         with self.assertWarns(DeprecationWarning):
-            binarytree(virtual=None, pkgdir="/tmp", settings=MagicMock())
+            binarytree(
+                virtual=None, pkgdir=os.getenv("TMPDIR", "/tmp"), settings=MagicMock()
+            )
 
     def test_instance_has_required_attrs(self):
         # Quite smoky test. What would it be a better testing strategy?
@@ -63,11 +67,13 @@ def test_instance_has_required_attrs(self):
         no_multi_instance_settings = MagicMock()
         no_multi_instance_settings.features = ""
         no_multi_instance_bt = binarytree(
-            pkgdir="/tmp", settings=no_multi_instance_settings
+            pkgdir=os.getenv("TMPDIR", "/tmp"), settings=no_multi_instance_settings
         )
         multi_instance_settings = MagicMock()
         multi_instance_settings.features = "binpkg-multi-instance"
-        multi_instance_bt = binarytree(pkgdir="/tmp", settings=multi_instance_settings)
+        multi_instance_bt = binarytree(
+            pkgdir=os.getenv("TMPDIR", "/tmp"), settings=multi_instance_settings
+        )
         for attr in required_attrs_no_multi_instance:
             getattr(no_multi_instance_bt, attr)
             getattr(multi_instance_bt, attr)
@@ -77,7 +83,7 @@ def test_instance_has_required_attrs(self):
 
     @patch("portage.dbapi.bintree.binarytree._populate_local")
     def test_populate_without_updates_repos_nor_getbinspkgs(self, ppopulate_local):
-        bt = binarytree(pkgdir="/tmp", settings=MagicMock())
+        bt = binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"), settings=MagicMock())
         ppopulate_local.return_value = {}
         bt.populate()
         ppopulate_local.assert_called_once_with(reindex=True)
@@ -86,7 +92,7 @@ def test_populate_without_updates_repos_nor_getbinspkgs(self, ppopulate_local):
 
     @patch("portage.dbapi.bintree.binarytree._populate_local")
     def test_populate_calls_twice_populate_local_if_updates(self, ppopulate_local):
-        bt = binarytree(pkgdir="/tmp", settings=MagicMock())
+        bt = binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"), settings=MagicMock())
         bt.populate()
         self.assertIn(call(reindex=True), ppopulate_local.mock_calls)
         self.assertIn(call(), ppopulate_local.mock_calls)
@@ -96,7 +102,7 @@ def test_populate_calls_twice_populate_local_if_updates(self, ppopulate_local):
     @patch("portage.dbapi.bintree.binarytree._populate_local")
     def test_populate_with_repos(self, ppopulate_local, ppopulate_additional):
         repos = ("one", "two")
-        bt = binarytree(pkgdir="/tmp", settings=MagicMock())
+        bt = binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"), settings=MagicMock())
         bt.populate(add_repos=repos)
         ppopulate_additional.assert_called_once_with(repos)
 
@@ -109,7 +115,7 @@ def test_populate_with_getbinpkgs(
         refresh = "something"
         settings = MagicMock()
         settings.__getitem__.return_value = "/some/path"
-        bt = binarytree(pkgdir="/tmp", settings=settings)
+        bt = binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"), settings=settings)
         bt.populate(getbinpkgs=True, getbinpkg_refresh=refresh)
         ppopulate_remote.assert_called_once_with(getbinpkg_refresh=refresh)
 
@@ -126,7 +132,7 @@ def test_populate_with_getbinpkgs_and_not_BinRepoConfigLoader(
         settings.__getitem__.return_value = portage_root
         pBinRepoConfigLoader.return_value = None
         conf_file = os.path.join(portage_root, BINREPOS_CONF_FILE)
-        bt = binarytree(pkgdir="/tmp", settings=settings)
+        bt = binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"), settings=settings)
         bt.populate(getbinpkgs=True, getbinpkg_refresh=refresh)
         ppopulate_remote.assert_not_called()
         pwritemsg.assert_called_once_with(
@@ -150,6 +156,6 @@ def test_default_getbinpkg_refresh_in_populate(
         """
         settings = MagicMock()
         settings.__getitem__.return_value = "/some/path"
-        bt = binarytree(pkgdir="/tmp", settings=settings)
+        bt = binarytree(pkgdir=os.getenv("TMPDIR", "/tmp"), settings=settings)
         bt.populate(getbinpkgs=True)
         ppopulate_remote.assert_called_once_with(getbinpkg_refresh=False)