Added unittest setup with a unittest

.github/workflows/python_tests.yml

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+name: Python Application Test
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out repository code
+      uses: actions/checkout@v2
+
+    - name: Set up Python 3.9
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.9'
+
+    - name: Execute unittest script
+      run: |
+        chmod +x unittest.sh
+        ./unittest.sh

.gitignore

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+unittest_env/
+__pycache__/
+*egg-info
+.vscode/
+trace.html

test/test_node_converters/test_math.py

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+import unittest
+import torch
+import nobuco
+
+class TestPyTorchToKerasConversion(unittest.TestCase):
+    def test_log_converter(self):
+        # Define the Sign model inside the test
+        class Log(torch.nn.Module):
+            def __init__(self):
+                super(Log, self).__init__()
+
+            def forward(self, input_tensor):
+                return torch.log(input_tensor)
+
+        # Initialize the model and input tensor
+        torch_model = Log()
+        torch_model.eval()
+        input_tensor = torch.randn(1, 10, 20)
+
+        # Convert the model and ensure the HTML trace is saved
+        keras_model = nobuco.pytorch_to_keras(
+            torch_model,
+            args=[input_tensor], kwargs=None,
+            inputs_channel_order=nobuco.ChannelOrder.TENSORFLOW,
+            outputs_channel_order=nobuco.ChannelOrder.TENSORFLOW,
+            save_trace_html=True
+        )
+
+        # Read the contents of the trace.html file
+        with open('trace.html', 'r', encoding='utf-8') as file:
+            trace_html = file.read()
+
+        # Assertions for the content of trace_html
+        self.assertNotIn('Max diff', trace_html, "The trace HTML should not contain 'Max diff'")
+
+
+if __name__ == '__main__':
+    unittest.main()

unittest.sh

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+#!/bin/bash
+
+# Run `chmod +x unittest.sh` first
+
+# Define the environment name
+ENV_NAME="unittest_env"
+
+# Remove the previous virtual environment to ensure a fresh setup
+echo "Removing any existing virtual environment..."
+rm -rf $ENV_NAME
+
+# Create a new virtual environment
+echo "Creating a new virtual environment..."
+python3 -m venv $ENV_NAME
+
+# Activate the virtual environment
+echo "Activating the virtual environment..."
+source $ENV_NAME/bin/activate
+
+# Upgrade pip to its latest version
+echo "Upgrading pip..."
+pip install --upgrade pip
+
+# Install dependencies from requirements.txt
+echo "Installing dependencies from requirements.txt..."
+pip install -r requirements.txt
+
+# Run unit tests
+echo "Running unit tests..."
+python -m unittest
+
+# Deactivate the virtual environment
+echo "Deactivating the virtual environment..."
+deactivate