Add test_bsrn file

File is not complete, as I'm awaiting permission from BSRN to upload test file

Author: AdamRJensen

pvlib/tests/iotools/test_bsrn.py

@@ -0,0 +1,34 @@
+"""
+tests for :mod:`pvlib.iotools.bsrn`
+"""
+
+
+import pandas as pd
+import pytest
+
+from pvlib.iotools import bsrn
+from conftest import DATA_DIR
+
+
+# Awaiting permission from BSRN to upload test file
+testfile = DATA_DIR / 'bsrn_xxxxx.dat'
+
+
+def test_read_bsrn_columns():
+    data = bsrn.read_bsrn(testfile)
+    assert 'ghi' in data.columns
+    assert 'dni_std' in data.columns
+    assert 'dhi_min' in data.columns
+    assert 'lwd_max' in data.columns
+    assert 'relative_humidity' in data.columns
+
+
+@pytest.fixture
+def expected_index():
+    start = pd.Timestamp(2020,1,1,0,0)
+    return pd.date_range(start=start, periods=1440, freq='1min', tz='UTC')
+
+
+def test_format_index():
+    actual = bsrn.read_bsrn(testfile)
+    assert actual.index.equals(expected_index)