disp and field from file, merging not done yet

testing/configs/override/fiber2.toml

@@ -0,0 +1,13 @@
+name = "fiber 2"
+
+[fiber]
+beta = [-1.183e-26, 8.1038e-41, -9.5205e-56, 2.0737e-70, -5.3943e-85, 1.3486e-99, -2.5495e-114, 3.0524e-129, -1.714e-144]
+gamma = 0.13
+length = 0.05
+model = "custom"
+
+[fiber.variable]
+input_transmission = [0.9, 0.95]
+
+[simulation]
+z_num = 16

testing/configs/override/initial_config.toml

@@ -0,0 +1,32 @@
+name = "full anomalous"
+
+[fiber]
+beta = [ -1.183e-26, 8.1038e-41, -9.5205e-56, 2.0737e-70, -5.3943e-85, 1.3486e-99, -2.5495e-114, 3.0524e-129, -1.714e-144,]
+gamma = 0.11
+length = 0.02
+model = "custom"
+input_transmission = 1.0
+
+[pulse]
+power = 10000
+t0 = 2.84e-14
+shape = "gaussian"
+quantum_noise = false
+intensity_noise = 0
+
+[simulation]
+dt = 1e-15
+parallel = true
+raman_type = "measured"
+repeat = 3
+t_num = 16384
+tolerated_error = 1e-9
+z_num = 64
+behaviors = [ "spm", "ss",]
+frep = 80000000.0
+lower_wavelength_interp_limit = 3e-7
+upper_wavelength_interp_limit = 1.9e-6
+ideal_gas = false
+
+[pulse.variable]
+wavelength = [ 8.35e-7, 8.3375e-7,]

testing/test_utils.py

@@ -11,9 +11,12 @@ def load_conf(name):
     return conf
 
 
-def conf_maker(folder):
+def conf_maker(folder, val=True):
     def conf(name):
-        return initialize.validate(load_conf(folder + "/" + name))
+        if val:
+            return initialize.validate(load_conf(folder + "/" + name))
+        else:
+            return load_conf(folder + "/" + name)
 
     return conf
 
@@ -50,6 +53,15 @@ class TestUtilsMethods(unittest.TestCase):
         for value, target in zip(values, s):
             self.assertEqual(target, utils.format_value(value))
 
+    def test_override_config(self):
+        conf = conf_maker("override", False)
+        old = conf("initial_config")
+        new = conf("fiber2")
+
+        over = utils.override_config(old, new)
+        self.assertIn("input_transmission", over["fiber"]["variable"])
+        self.assertNotIn("input_transmission", over["fiber"])
+
 
 if __name__ == "__main__":
     unittest.main()