1. fix the little bug in utnittest case. 2 change data folder path to fix setup error

csst_cpic_sim/config.py

@@ -4,7 +4,7 @@ from datetime import datetime
 import numpy as np
 
 
-config_aim = os.path.dirname(os.path.dirname(__file__))
+config_aim = os.path.dirname(__file__)
 config_aim = os.path.join(config_aim, 'data/refdata_path.yaml')
 
 

csst_cpic_sim/io.py

@@ -506,8 +506,8 @@ def save_fits_simple(images, obs_info, output_folder='./'):
     header['exptime'] = obs_info['expt']
     header['nframe'] = obs_info['nframe']
     header['band'] = obs_info['band']
-    header['emgain'] = obs_info['emgain']
-    header['emset'] = obs_info['emset']
+    header['emgain'] = obs_info.get('emgain', 'UNSET')
+    header['emset'] = obs_info.get('emset', 'UNSET')
     header['obsid'] = obs_info['obsid']
     header['rotation'] = obs_info['rotation']
     shift = obs_info['shift']

tests/test_io.py

@@ -27,6 +27,7 @@ params = {
     'nframe': 5,
     'band': 'f661',
     'emgain': 10,
+    'emset': 10,
     'obsid': '40112345678',
     'rotation': 20,
     'shift': [0, 1],
@@ -96,6 +97,7 @@ band: "f661"
 shift: [0, 0]
 rotation: 0
 emgain: 100
+emset: -1
 skybg: 21
 expstart: