TST: test that we work in downstream packages

ci/requirements-2.7.sh

@@ -2,6 +2,6 @@
 
 source activate pandas
 
-echo "install 27"
+echo "install 27 BUILD_TEST"
 
 conda install -n pandas -c conda-forge feather-format

ci/requirements-2.7_BUILD_TEST.pip

@@ -0,0 +1,7 @@
+xarray
+geopandas
+dask
+seaborn
+pandas_gbq
+pandas_datareader
+statsmodels

ci/requirements-2.7_BUILD_TEST.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+source activate pandas
+
+echo "install 27"
+
+conda install -n pandas -c conda-forge pyarrow

pandas/tests/test_downstream.py

@@ -0,0 +1,58 @@
+"""
+Testing that we work in the downstream packages
+"""
+import pytest
+from pandas import DataFrame
+
+
+@pytest.fixture
+def df():
+    return DataFrame({'A': [1, 2, 3]})
+
+
+def test_dask(df):
+
+    dask = pytest.importorskip('dask')  # noqa
+
+    import dask.dataframe as dd
+
+    ddf = dd.from_pandas(df)
+    assert ddf.A is not None
+    assert ddf.compute()
+
+
+def test_xarray(df):
+
+    xarray = pytest.importorskip('xarray')  # noqa
+
+    assert df.to_xarray() is not None
+
+
+def test_statsmodels(df):
+
+    statsmodels = pytest.importorskip('statsmodels')  # noqa
+
+
+def test_seaborn(df):
+
+    seaborn = pytest.importorskip('seaborn')  # noqa
+
+
+def test_pandas_gbq(df):
+
+    pandas_gbq = pytest.importorskip('pandas-gbq')  # noqa
+
+
+def test_pandas_datareader(df):
+
+    pandas_datareader = pytest.importorskip('pandas-datareader')  # noqa
+
+
+def test_geopandas(df):
+
+    geopandas = pytest.importorskip('geopandas')  # noqa
+
+
+def test_pyarrow(df):
+
+    pyarrow = pytest.importorskip('pyarrow')  # noqa