Add HTTPConnection unit tests

tests/test_http_connection.py

@@ -0,0 +1,65 @@
+import requests_mock
+import pytest
+
+from flightgear_python.fg_if import HTTPConnection
+
+# Excerpt from https://wiki.flightgear.org/Json_Properties#Example
+preset_values = [
+    {
+        'path': '/sim/time/cur-time-override',
+        'name': 'cur-time-override',
+        'value': '0',
+        'type': 'long',
+        'index': 0,
+        'nChildren': 0,
+    },
+    {
+        'path': '/sim/time/local-offset',
+        'name': 'local-offset',
+        'value': '3600',
+        'type': 'int',
+        'index': 0,
+        'nChildren': 0,
+    },
+    {
+        'path': '/sim/time/gmt',
+        'name': 'gmt',
+        'value': '2014-03-27T13:25:10',
+        'type': 'string',
+        'index': 0,
+        'nChildren': 0,
+    },
+    {
+        'path': '/sim/time/sun-angle-rad',
+        'name': 'sun-angle-rad',
+        'value': '0.9883239645',
+        'type': 'double',
+        'index': 0,
+        'nChildren': 0,
+    },
+]
+
+
+@pytest.mark.parametrize('preset_value', preset_values)
+def test_http_get_prop(preset_value):
+    h_con = HTTPConnection('localhost', 55555)
+    with requests_mock.Mocker() as m:
+        prop_path = preset_value['path']
+        # Set the mock value
+        m.get(h_con.url + prop_path, json=preset_value)
+        # Check the code result
+        resp = h_con.get_prop(prop_path)
+        # Instead of comparing the converted value, just convert the converted value to a string and compare that
+        assert str(resp) == preset_value['value']
+
+
+@pytest.mark.parametrize('preset_value', preset_values)
+def test_http_set_prop(preset_value):
+    h_con = HTTPConnection('localhost', 55555)
+    with requests_mock.Mocker() as m:
+        prop_path = preset_value['path']
+        # Set the mock value
+        m.get(h_con.url + prop_path, json=preset_value)
+        m.post(h_con.url + prop_path)
+        # Check the code doesn't break (nothing to assert)
+        h_con.set_prop(prop_path, 'test value')