Add chunking for messeages over 512 bytes (#15)

Author: DomAmato

tests/Modem/test_Modem.py

@@ -57,6 +57,8 @@ def no_serial_port(monkeypatch):
 def get_sms(monkeypatch):
     monkeypatch.setattr(Modem, 'command', mock_command_sms)
     monkeypatch.setattr(Modem, 'set', mock_set_sms)
+def override_command_result(monkeypatch):
+    monkeypatch.setattr(Modem, '_command_result', mock_result)
 
 @pytest.fixture
 def override_command_result(monkeypatch):
@@ -103,6 +105,18 @@ def test_get_sms(no_serial_port, get_sms):
     assert(res.timestamp == datetime.utcfromtimestamp(1498264009))
     assert(res.message == 'Test 123')
 
+# WRITE SOCKET
+
+def test_socket_write_under_512(no_serial_port, override_command_result):
+    modem = Modem()
+    data = '{message:{fill}{align}{width}}'.format(message='Test-', fill='@', align='<', width=64)
+    modem.write_socket(data.encode())
+
+def test_socket_write_over_512(no_serial_port, override_command_result):
+    modem = Modem()
+    data = '{message:{fill}{align}{width}}'.format(message='Test-', fill='@', align='<', width=600)
+    modem.write_socket(data.encode())
+
 # DEBUGWRITE
 
 def test_debugwrite(no_serial_port):