testing: adding testing functions for Mc and b estimation as Catalog …

…method, but only for errors

seismostats/seismicity/tests/test_catalog.py

@@ -110,6 +110,22 @@ def test_catalog_bin_none():
         catalog.bin_magnitudes()    
 
 
+def test_catalog_estimate_mc():
+    catalog = Catalog({'magnitude': [0.235, -0.235, 4.499, 4.5, 6, 0.1, 1.6]})
+
+    with pytest.raises(ValueError):
+        catalog.estimate_mc()
+
+
+def test_catalog_estimate_b():
+    catalog = Catalog({'magnitude': [0.235, -0.235, 4.499, 4.5, 6, 0.1, 1.6]})
+
+    with pytest.raises(ValueError):
+        catalog.estimate_b(None, None)
+        catalog.estimate_b(mc=1.0, None)
+        catalog.estimate_b(mc=None, delta_m=0.1)
+
+
 def test_to_quakeml():
     xml_file = os.path.join(PATH_RESOURCES, 'quakeml_data.xml')
     with open(xml_file, 'r') as file: