added tests

python/tests/test_pythonAPI.py

@@ -0,0 +1,26 @@
+import pytest 
+
+from slsdet import Detector
+
+def test_rx_ROI():
+    """ Test setting and getting rx_ROI property of Detector class. """
+
+    d = Detector()
+    d.rx_roi = (0, 10, 10, 20)
+    roi = d.rx_roi
+    assert roi == [(0, 10, 10, 20)]
+    
+    d.rx_roi = [5,15,15,25]
+
+    assert d.rx_roi == [(5,15,15,25)]
+
+    d.rx_roi = [[0,10,0,20], [5,20,410,420]] #needs to be in second module 
+
+    roi = d.rx_roi
+    assert roi == [(0,10,0,20), (5,20,410,420)]
+
+    d.clear_rx_roi() 
+    roi = d.rx_roi
+    assert roi == [(-1,-1,-1,-1)] 
+
+