Add test for utils.py

README.md

@@ -82,4 +82,12 @@ sudo raspi-config
 - Camera
 - Enable
 
+### Testing with pytest
+
+To run tests with pytest, run:
+
+```bash
+pytest
+```
+
 

requirements.txt

@@ -0,0 +1 @@
+pytest==6.2.2

tracker/test_utils.py

@@ -0,0 +1,48 @@
+"""Unit tests for utils.py"""
+
+import pytest
+
+from utils import bearing, calc_travel, coordinate_distance, deg2rad, elevation
+
+
+def test_deg2rad():
+ """Unit tests for deg2rad()."""
+ # Note: python's math package includes a radians function that
+ # converts degrees to radians. This function could be eliminated
+ # to reduce custom code.
+ assert deg2rad(57.2958) == 1.0000003575641672
+ assert deg2rad(1) == 0.017453292519943295
+ assert deg2rad(-1) == -0.017453292519943295
+
+
+@pytest.mark.skip(reason="Insufficient documentation to test. No docstrings.")
+def test_elevation():
+ """Unit test for elevation()."""
+ pass
+
+
+def test_bearing():
+ """Unit test for bearing()."""
+ # Example from: https://www.igismap.com/formula-to-find-bearing-or-heading-angle-between-two-points-latitude-longitude/
+ lat1, long1 = 39.099912, -94.581213
+ lat2, long2 = 38.627089, -90.200203
+ expected_bearing = 96.51262423499941
+ assert bearing(lat1, long1, lat2, long2) == expected_bearing
+
+
+def test_coordinate_distance():
+ """Unit test for coordinate_distance()."""
+ # Used this app to calculate distance: https://www.movable-type.co.uk/scripts/latlong.html
+ lat1, long1 = 39.099912, -94.581213
+ lat2, long2 = 38.627089, -90.200203
+ expected_distance = 382900.05037560174
+ assert coordinate_distance(lat1, long1, lat2, long2) == expected_distance
+
+
+@pytest.mark.skip(reason="Insufficient documentation to test. What is lead_s?")
+def test_calc_travel():
+ """Unit test for calc_travel()."""
+ # note: the code in calc_travel is hard to understand because of the tangle
+ # of calculations. consider reformatting and explaining or explore the possibility
+ # using geopy
+ pass