Switch from skipping to xfailing some Python tests (#1002)

* xfail some skipped tests

* xfail hive/postgres tests on windows & macos

* Un-xfail xpassing tests

---------

Co-authored-by: Ayush Dattagupta <ayushdg95@gmail.com>

tests/integration/test_compatibility.py

@@ -436,9 +436,6 @@ def test_agg_sum_avg_no_group_by():
     )
 
 
-@pytest.mark.skip(
-    reason="WIP DataFusion - https://github.com/dask-contrib/dask-sql/issues/534"
-)
 def test_agg_sum_avg():
     a = make_rand_df(
         100, a=(int, 50), b=(str, 50), c=(int, 30), d=(str, 40), e=(float, 40)

tests/integration/test_hive.py

@@ -9,8 +9,8 @@
 from dask_sql.context import Context
 from tests.utils import assert_eq
 
-pytestmark = pytest.mark.skipif(
-    sys.platform in ("win32", "darwin"),
+pytestmark = pytest.mark.xfail(
+    condition=sys.platform in ("win32", "darwin"),
     reason="hive testing not supported on Windows/macOS",
 )
 docker = pytest.importorskip("docker")

tests/integration/test_model.py

@@ -925,7 +925,6 @@ def test_ml_experiment(c, client):
 
 # TODO - many ML tests fail on clusters without sklearn - can we avoid this?
 @xfail_if_external_scheduler
-@pytest.mark.skip(reason="Waiting on https://github.com/EpistasisLab/tpot/pull/1280")
 def test_experiment_automl_classifier(c, client):
     tpot = pytest.importorskip("tpot", reason="tpot not installed")
 
@@ -953,7 +952,6 @@ def test_experiment_automl_classifier(c, client):
 
 # TODO - many ML tests fail on clusters without sklearn - can we avoid this?
 @xfail_if_external_scheduler
-@pytest.mark.skip(reason="Waiting on https://github.com/EpistasisLab/tpot/pull/1280")
 def test_experiment_automl_regressor(c, client):
     tpot = pytest.importorskip("tpot", reason="tpot not installed")
 

tests/integration/test_postgres.py

@@ -2,8 +2,8 @@
 
 import pytest
 
-pytestmark = pytest.mark.skipif(
-    sys.platform in ("win32", "darwin"),
+pytestmark = pytest.mark.xfail(
+    condition=sys.platform in ("win32", "darwin"),
     reason="hive testing not supported on Windows/macOS",
 )
 docker = pytest.importorskip("docker")