diff --git a/tests/test_cube3d.py b/tests/test_cube3d.py
index c60d6423de5fb27a53dcb7b6564f71f350f33bd3..655157274d738ee70175068f1ac30c1da1ff2883 100644
--- a/tests/test_cube3d.py
+++ b/tests/test_cube3d.py
@@ -24,7 +24,7 @@ class test_cube3d(unittest.TestCase):
         print(">>> Start Test")
         print(" ")
 
-        inst = c.instrument()
+        inst = c.config()
         gas_tem = s.EmissionLineTemplate(inst, model = 'hii')
         stellar_tem = s.StellarContinuumTemplate(inst)
 
diff --git a/tests/test_map2d.py b/tests/test_map2d.py
index 0305204c54db0163fd4eafd0749a39f914ecb48f..2581686706db8761110a024514112fed411aed3a 100644
--- a/tests/test_map2d.py
+++ b/tests/test_map2d.py
@@ -16,7 +16,7 @@ class test_map2d(unittest.TestCase):
 
     def test_sbmap(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("------------------------- Sersic Model -------------------------")
         print(" ")
@@ -63,7 +63,7 @@ class test_map2d(unittest.TestCase):
 
     def test_velmap(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("------------------------ Velocity Model ------------------------")
         print(" ")
@@ -104,7 +104,7 @@ class test_map2d(unittest.TestCase):
 
     def test_gremap(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("------------------------ Gredient Model ------------------------")
         print(" ")
@@ -151,7 +151,7 @@ class test_map2d(unittest.TestCase):
 
     def test_input_image(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("------------------------ Feed Image------------------------")
         print(" ")
@@ -164,7 +164,7 @@ class test_map2d(unittest.TestCase):
 
     def test_stellar_population_map(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         sbmap = m.Map2d(inst)
         sbmap.sersic_map()
@@ -202,7 +202,7 @@ class test_map2d(unittest.TestCase):
 
     def test_ionized_gas_map(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         halphamap = m.Map2d(inst)
         halphamap.sersic_map()
diff --git a/tests/test_spec1d.py b/tests/test_spec1d.py
index abe81173f7f2c24bf7e8b0bc8ebd33ef963124b8..08bdb67c78696bd2d610fc60dae2ee74806c460b 100644
--- a/tests/test_spec1d.py
+++ b/tests/test_spec1d.py
@@ -17,7 +17,7 @@ class test_spec1d(unittest.TestCase):
 
     def test_StellarPop(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("=================================================================")
         print("==================Stellar Population Modelling===================")
@@ -112,7 +112,7 @@ class test_spec1d(unittest.TestCase):
         
     def test_Star(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("================================================================")
         print("=================Single Star Spectra Modelling===================")
@@ -184,7 +184,7 @@ class test_spec1d(unittest.TestCase):
 
     def test_Gas(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("================================================================")
         print("======================Ionized Gas Modelling======================")
@@ -274,7 +274,7 @@ class test_spec1d(unittest.TestCase):
 
     def test_AGN(self):
 
-        inst = c.instrument()
+        inst = c.config()
 
         print("================================================================")
         print("=====================AGN Spectra Modelling======================")