Refactor and add test for ModelBuilder

Author: phumthep

docs/source/api_ref/pownet.core.rst

@@ -4,10 +4,10 @@ pownet.core package
 Submodules
 ----------
 
-pownet.core.builder module
+pownet.core.model_builder module
 --------------------------
 
-.. automodule:: pownet.core.builder
+.. automodule:: pownet.core.model_builder
    :members:
    :undoc-members:
    :show-inheritance:

src/pownet/core/__init__.py

@@ -1,6 +1,6 @@
 """This is the core module."""
 
-from .builder import ModelBuilder
+from .model_builder import ModelBuilder
 from .output import OutputProcessor
 from .visualizer import Visualizer
 from .record import SystemRecord

src/pownet/core/builder.py src/pownet/core/model_builder.pysrc/pownet/core/builder.py renamed to src/pownet/core/model_builder.py

@@ -1,3 +1,7 @@
+"""builder.py: This module contains the ModelBuilder class, which is responsible
+for constructing and updating the optimization model for the power system.
+"""
+
 from ..input import SystemInput
 
 from gurobipy import GRB

src/pownet/core/simulation.py

@@ -4,7 +4,7 @@
 from pownet.data_utils import (
     create_init_condition,
 )
-from .builder import ModelBuilder
+from .model_builder import ModelBuilder
 from .data_processor import DataProcessor
 from ..input import SystemInput
 from .output import OutputProcessor