update test

Author: jmejia8

test/test_all.py

@@ -1,7 +1,7 @@
-from ecapy.optimizer import eca
+from ecapy import eca
 
 def test_eca():
-    f = lambda x, d: abs(sum(x[:d]))
-    x, fx = eca(f, 10, minimize=True)
+    f = lambda x: abs(sum(x))
+    x, fx = eca(f, 5, minimize=True)
 
     assert abs(fx) < 1e-8