Use setCommandLineOptions()

... instead of raw sendExpression.
Seems cleaner and improves test coverage.

Author: ondras12345

OMPython/__init__.py

@@ -697,8 +697,8 @@ def __init__(self, fileName=None, modelName=None, lmodel=None, commandLineOption
         # set default command Line Options for linearization as
         # linearize() will use the simulation executable and runtime
         # flag -l to perform linearization
-        self.sendExpression('setCommandLineOptions("--linearizationDumpLanguage=python")')
-        self.sendExpression('setCommandLineOptions("--generateSymbolicLinearization")')
+        self.setCommandLineOptions("--linearizationDumpLanguage=python")
+        self.setCommandLineOptions("--generateSymbolicLinearization")
 
         self.setTempDirectory(customBuildDirectory)
 
@@ -714,10 +714,11 @@ def __init__(self, fileName=None, modelName=None, lmodel=None, commandLineOption
 
     def setCommandLineOptions(self, commandLineOptions: str):
         # set commandLineOptions if provided by users
-        if commandLineOptions is not None:
-            exp = f'setCommandLineOptions("{commandLineOptions}")'
-            if not self.sendExpression(exp):
-                self._check_error()
+        if commandLineOptions is None:
+            return
+        exp = f'setCommandLineOptions("{commandLineOptions}")'
+        if not self.sendExpression(exp):
+            self._check_error()
 
     def loadFile(self):
         # load file
@@ -1540,7 +1541,7 @@ def optimize(self):  # 21
         """
         cName = self.modelName
         properties = ','.join(f"{key}={val}" for key, val in self.optimizeOptions.items())
-        self.sendExpression('setCommandLineOptions("-g=Optimica")')
+        self.setCommandLineOptions("-g=Optimica")
         optimizeResult = self.requestApi('optimize', cName, properties)
         self._check_error()