TST:merge: Handle rasterio 1.4 merge test differences (#818)

Author: snowman2

test/conftest.py

@@ -15,6 +15,7 @@
 TEST_DATA_DIR = os.path.join(os.path.dirname(__file__), "test_data")
 TEST_INPUT_DATA_DIR = os.path.join(TEST_DATA_DIR, "input")
 TEST_COMPARE_DATA_DIR = os.path.join(TEST_DATA_DIR, "compare")
+RASTERIO_GE_14 = version.parse(rasterio.__version__) >= version.parse("1.4.0")
 GDAL_GE_36 = version.parse(rasterio.__gdal_version__) >= version.parse("3.6.0")
 GDAL_GE_361 = version.parse(rasterio.__gdal_version__) >= version.parse("3.6.1")
 GDAL_GE_364 = version.parse(rasterio.__gdal_version__) >= version.parse("3.6.4")

test/integration/test_integration_merge.py

@@ -6,7 +6,7 @@
 
 from rioxarray import open_rasterio
 from rioxarray.merge import merge_arrays, merge_datasets
-from test.conftest import TEST_INPUT_DATA_DIR
+from test.conftest import RASTERIO_GE_14, TEST_INPUT_DATA_DIR
 
 
 @pytest.mark.parametrize("squeeze", [True, False])
@@ -82,7 +82,10 @@ def test_merge__different_crs(dataset):
             (-7300984.0238134, 5003618.5908794, -7224054.1109682, 5050108.6101528),
         )
         assert merged.rio.shape == (84, 139)
-        assert_almost_equal(test_sum, -131734881)
+        if RASTERIO_GE_14:
+            assert_almost_equal(test_sum, -126821853)
+        else:
+            assert_almost_equal(test_sum, -131734881)
 
         assert_almost_equal(
             tuple(merged.rio.transform()),