add some more rigorous column ordering tests

Author: ehinman

tests/waterdata_test.py

@@ -140,11 +140,20 @@ def test_get_daily_properties():
         time="2025-01-01/..",
         properties=["daily_id", "monitoring_location_id", "parameter_code", "time", "value", "geometry"]
     )
-    assert "daily_id" in df.columns
-    assert "geometry" in df.columns
+    assert "daily_id" == df.columns[0]
+    assert "geometry" == df.columns[-1]
     assert df.shape[1] == 6
     assert df.parameter_code.unique().tolist() == ["00060"]
 
+def test_get_daily_properties_id():
+    df,_ = get_daily(
+        monitoring_location_id="USGS-05427718",
+        parameter_code="00060",
+        time="2025-01-01/..",
+        properties=["monitoring_location_id", "id", "parameter_code", "time", "value", "geometry"]
+    )
+    assert "daily_id" == df.columns[1]
+
 def test_get_daily_no_geometry():
     df,_ = get_daily(
         monitoring_location_id="USGS-05427718",
@@ -188,7 +197,7 @@ def test_get_latest_continuous():
         monitoring_location_id=["USGS-05427718", "USGS-05427719"],
         parameter_code=["00060", "00065"]
     )
-    assert "latest_continuous_id" in df.columns
+    assert "latest_continuous_id" == df.columns[-1]
     assert df.shape[0] <= 4
     assert df.statistic_id.unique().tolist() == ["00011"]
     assert hasattr(md, 'url')