diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..109be1d
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,32 @@
+name: Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10", "3.11"]
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        if [ -f requirements-dev.txt ]; then pip install -r requirements-dev.txt; fi
+
+    - name: Run tests
+      run: |
+        pytest tests/
diff --git a/Other/fee_adjuster.md b/Other/fee_adjuster.md
index d657ae9..ae8706d 100644
--- a/Other/fee_adjuster.md
+++ b/Other/fee_adjuster.md
@@ -38,6 +38,20 @@ This adjustment is automatically skipped if the aggregate local liquidity for th
 - Run the script to automatically adjust fees based on configured settings.
 - Requires a running LNDg instance for local channel details and fee updates.
 
+### Test Suite:
+New features and refactors are guarded by a suite of unit tests. To run them locally:
+
+```bash
+# Activate your venv first if not active
+source .venv/bin/activate
+
+# Install test dependencies
+pip install -r requirements-dev.txt
+
+# Run the tests (pytest auto-discovers tests in the current directory)
+pytest
+```
+
 ### Command Line Arguments:
 - --debug: Enable detailed debug output, including stuck channel check results.
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..764bd45
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,8 @@
+[tool.pytest.ini_options]
+pythonpath = [
+    ".",
+    "Other",
+    "Magma"
+]
+testpaths = ["tests"]
+addopts = "-v"
diff --git a/requirements-dev.txt b/requirements-dev.txt
new file mode 100644
index 0000000..ab92662
--- /dev/null
+++ b/requirements-dev.txt
@@ -0,0 +1,3 @@
+pytest
+pytest-mock
+requests-mock
diff --git a/tests/Magma/__init__.py b/tests/Magma/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/Magma/test_magma_sale_process.py b/tests/Magma/test_magma_sale_process.py
new file mode 100644
index 0000000..5fce444
--- /dev/null
+++ b/tests/Magma/test_magma_sale_process.py
@@ -0,0 +1,193 @@
+
+import sys
+import os
+import pytest
+from unittest.mock import MagicMock
+
+# --- FIXTURE: Mock Global Side Effects ---
+@pytest.fixture(scope="module", autouse=True)
+def mock_dependencies():
+    """
+    Patcher fixture that runs BEFORE the test module logic is fully utilized.
+    Since 'import magma_sale_process' has side effects, we patch sys.modules 
+    so the import uses our mocks.
+    """
+    mock_telebot = MagicMock()
+    mock_telebot.TeleBot = MagicMock()
+    mock_configparser = MagicMock()
+    mock_logging = MagicMock()
+    mock_schedule = MagicMock()
+    
+    # Mock config dict
+    mock_config_data = {
+        "telegram": {"magma_bot_token": "fake_token", "telegram_user_id": "123"},
+        "credentials": {"amboss_authorization": "fake_auth"},
+        "system": {"full_path_bos": "/path/to/bos"},
+        "magma": {"invoice_expiry_seconds": "1800", "max_fee_percentage_of_invoice": "0.9", "channel_fee_rate_ppm": "350"},
+        "urls": {"mempool_fees_api": "https://mempool.space/api/v1/fees/recommended"},
+        "pubkey": {"banned_magma_pubkeys": ""},
+        "paths": {"lncli_path": "lncli"}
+    }
+    
+    mock_config_instance = MagicMock()
+    mock_config_instance.__getitem__.side_effect = mock_config_data.__getitem__
+    mock_config_instance.get = MagicMock(side_effect=lambda section, option, fallback=None: mock_config_data.get(section, {}).get(option, fallback))
+    mock_config_instance.getint = MagicMock(return_value=10)
+    mock_config_instance.getfloat = MagicMock(return_value=0.5)
+    mock_configparser.ConfigParser.return_value = mock_config_instance
+
+    module_patches = {
+        'telebot': mock_telebot,
+        'telebot.types': MagicMock(),
+        'configparser': mock_configparser,
+        'schedule': mock_schedule,
+        'logging.handlers': MagicMock(),
+        # We don't actully want to strictly mock logging or it suppresses output, but we prevent file handler creation
+    }
+
+    from unittest.mock import patch, mock_open
+    
+    # Apply patches
+    with patch.dict(sys.modules, module_patches):
+        with patch("builtins.open", mock_open(read_data="[magma]\nfoo=bar")):
+            with patch("os.makedirs"):
+                 # Normally we'd import here.
+                 # However, since we are inside a fixture, and pytest collects modules first,
+                 # we need to ensure the import happens strictly under this context.
+                 # But python imports are cached.
+                 
+                 # To make this robust, we import inside the test functions OR use 'importlib.reload' if needed.
+                 # But since we use autouse=True scope=module, tests in this file will "see" the mocked modules 
+                 # if we import right here or if we import at top level BUT rely on this fixture running first?
+                 # No, top level imports happen at collection time.
+                 # So we MUST move the import `import magma_sale_process` INTO the test functions or a fixture that returns the module.
+                 yield
+
+@pytest.fixture
+def magma_module(mock_dependencies):
+    """
+    Imports and returns the magma_sale_process module ensuring it is mocked.
+    """
+    # Verify we can import it now
+    # We might need to handle sys.path if pyproject.toml didn't kick in yet or for safety
+    if os.path.abspath(os.path.join(os.path.dirname(__file__), '../../Magma')) not in sys.path:
+         sys.path.append(os.path.abspath(os.path.join(os.path.dirname(__file__), '../../Magma')))
+    
+    import magma_sale_process
+    # Reset vital mocks
+    magma_sale_process.requests = MagicMock()
+    return magma_sale_process
+
+# --- TESTS ---
+
+def test_get_node_alias_success(magma_module):
+    """Test retrieving node alias successfully."""
+    mock_response = {"data": {"getNodeAlias": "TestNode"}}
+    
+    mock_post = MagicMock()
+    mock_post.json.return_value = mock_response
+    mock_post.raise_for_status.return_value = None
+    magma_module.requests.post = MagicMock(return_value=mock_post)
+
+    alias = magma_module.get_node_alias("pubkey123")
+    assert alias == "TestNode"
+
+def test_get_node_alias_failure(magma_module):
+    """Test retrieving node alias when API fails."""
+    mock_post = MagicMock()
+    mock_post.json.return_value = {} 
+    magma_module.requests.post = MagicMock(return_value=mock_post)
+
+    alias = magma_module.get_node_alias("pubkey123")
+    assert alias == "ErrorFetchingAlias"
+
+def test_execute_lncli_addinvoice_success(magma_module, mocker):
+    """Test generating an invoice calls lncli correctly."""
+    mock_popen = mocker.patch("subprocess.Popen")
+    process_mock = MagicMock()
+    expected_json = '{"r_hash": "hash123", "payment_request": "lnbc..."}'
+    process_mock.communicate.return_value = (expected_json.encode('utf-8'), b"")
+    mock_popen.return_value = process_mock
+
+    r_hash, pay_req = magma_module.execute_lncli_addinvoice(1000, "memo", 3600)
+
+    assert r_hash == "hash123"
+    assert pay_req == "lnbc..."
+    
+    # Strict Argument Checking
+    mock_popen.assert_called_once()
+    args = mock_popen.call_args[0][0]
+    
+    # Check that --amt matches the passed amount 1000
+    assert "--amt" in args
+    amt_index = args.index("--amt")
+    assert args[amt_index + 1] == "1000"
+
+def test_execute_lncli_addinvoice_failure(magma_module, mocker):
+    """Test error handling when lncli fails."""
+    mock_popen = mocker.patch("subprocess.Popen")
+    process_mock = MagicMock()
+    process_mock.communicate.return_value = (b"", b"Error: something went wrong")
+    mock_popen.return_value = process_mock
+
+    r_hash, pay_req = magma_module.execute_lncli_addinvoice(1000, "memo", 3600)
+    
+    assert r_hash.startswith("Error")
+    assert pay_req is None
+
+def test_accept_order_success(magma_module):
+    """Test accepting an order on Amboss."""
+    mock_response = {"data": {"sellerAcceptOrder": True}} 
+    mock_post = MagicMock()
+    mock_post.json.return_value = mock_response
+    mock_post.raise_for_status.return_value = None
+    magma_module.requests.post = MagicMock(return_value=mock_post)
+
+    result = magma_module.accept_order("order123", "lnbc123")
+    assert result == mock_response
+
+def test_reject_order_success(magma_module):
+    """Test rejecting an order on Amboss."""
+    mock_response = {"data": {"sellerRejectOrder": True}}
+    mock_post = MagicMock()
+    mock_post.json.return_value = mock_response
+    magma_module.requests.post = MagicMock(return_value=mock_post)
+
+    result = magma_module.reject_order("order123")
+    assert result == mock_response
+
+def test_execute_lnd_command_success(magma_module, mocker):
+    """Test successfully opening a channel."""
+    mock_run = mocker.patch("subprocess.run")
+    mock_result = MagicMock()
+    mock_result.returncode = 0
+    mock_result.stdout = '{"funding_txid": "txid123"}'
+    mock_result.stderr = ""
+    mock_run.return_value = mock_result
+
+    txid, err = magma_module.execute_lnd_command("pubkey", 10, None, 100000, 500)
+    
+    assert txid == "txid123"
+    assert err is None
+    
+    # Strict Argument Checking
+    args = mock_run.call_args[0][0]
+    assert "openchannel" in args
+    
+    assert "--fee_rate_ppm" in args
+    fee_index = args.index("--fee_rate_ppm")
+    assert args[fee_index + 1] == "500"
+
+def test_execute_lnd_command_failure(magma_module, mocker):
+    """Test failure opening a channel."""
+    mock_run = mocker.patch("subprocess.run")
+    mock_result = MagicMock()
+    mock_result.returncode = 1
+    mock_result.stdout = ""
+    mock_result.stderr = "not enough funds"
+    mock_run.return_value = mock_result
+
+    txid, err = magma_module.execute_lnd_command("pubkey", 10, None, 100000, 500)
+    
+    assert txid is None
+    assert "not enough funds" in err
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/conftest.py b/tests/conftest.py
new file mode 100644
index 0000000..f2bae29
--- /dev/null
+++ b/tests/conftest.py
@@ -0,0 +1,18 @@
+import pytest
+
+@pytest.fixture
+def fee_conditions():
+    """Returns a sample fee_conditions dictionary."""
+    return {
+        "fee_bands": {
+            "enabled": True,
+            "discount": -0.15,
+            "premium": 0.40
+        },
+        "stuck_channel_adjustment": {
+            "enabled": True,
+            "stuck_time_period": 5,
+            "min_local_balance_for_stuck_discount": 0.1,
+            "min_updates_for_discount": 100
+        }
+    }
diff --git a/tests/test_fee_adjuster.py b/tests/test_fee_adjuster.py
new file mode 100644
index 0000000..ea91f1f
--- /dev/null
+++ b/tests/test_fee_adjuster.py
@@ -0,0 +1,107 @@
+import sys
+import os
+import pytest
+
+import pytest
+
+from fee_adjuster import calculate_fee_band_adjustment
+
+def test_high_liquidity_not_stuck_no_discount(fee_conditions):
+    """
+    Test that a channel with high local liquidity (Band 0) that is NOT stuck
+    does NOT receive a discount.
+    """
+    # 90% outbound ratio => Band 0 (Initial)
+    outbound_ratio = 0.90
+    num_updates = 200 # Sufficient updates
+    stuck_bands_to_move_down = 0 # Not stuck
+    
+    adj_factor, init_band, final_band = calculate_fee_band_adjustment(
+        fee_conditions, 
+        outbound_ratio, 
+        num_updates, 
+        stuck_bands_to_move_down
+    )
+    
+    # Expectation: 
+    # initial_raw_band = 0
+    # adjusted_raw_band = 0
+    # calculated_adjustment = -0.15 (discount)
+    # BUT is_channel_stuck is False, so adjustment should become 0
+    
+    assert init_band == 0
+    assert final_band == 0
+    assert adj_factor == 1.0 # 1 + 0
+    
+def test_high_liquidity_stuck_receives_discount(fee_conditions):
+    """
+    Test that a channel with high local liquidity that IS stuck 
+    receives the discount.
+    """
+    outbound_ratio = 0.90
+    num_updates = 200
+    stuck_bands_to_move_down = 1 # Stuck for at least one period
+    
+    adj_factor, _, _ = calculate_fee_band_adjustment(
+        fee_conditions, 
+        outbound_ratio, 
+        num_updates, 
+        stuck_bands_to_move_down
+    )
+    
+    # Expectation: Discount applied.
+    # adjustable_raw_band = 0
+    # adjustment = -0.15
+    # Factor = 0.85
+    
+    assert adj_factor == 0.85
+
+def test_new_channel_guard_stuck_but_low_updates(fee_conditions):
+    """
+    Test that a stuck channel with insufficient updates still gets NO discount
+    (legacy safeguard check).
+    """
+    outbound_ratio = 0.90
+    num_updates = 50 # < 100
+    stuck_bands_to_move_down = 1 # Stuck
+    
+    adj_factor, _, _ = calculate_fee_band_adjustment(
+        fee_conditions, 
+        outbound_ratio, 
+        num_updates, 
+        stuck_bands_to_move_down
+    )
+    
+    # Expectation: 
+    # Condition: (not is_channel_stuck or num_updates < min_updates)
+    # (False or True) -> True.
+    # Adjustment -> 0
+    
+    assert adj_factor == 1.0
+
+def test_premium_applied_regardless_of_stuck(fee_conditions):
+    """
+    Test that premiums are applied for low liquidity channels regardless of stuck status.
+    """
+    # 10% outbound ratio => Band 4 (0-20%) -> capped at Band 3 effective logic
+    outbound_ratio = 0.10 
+    num_updates = 200
+    stuck_bands_to_move_down = 0
+    
+    adj_factor, init_band, final_band = calculate_fee_band_adjustment(
+        fee_conditions, 
+        outbound_ratio, 
+        num_updates, 
+        stuck_bands_to_move_down
+    )
+    
+    # Expectation:
+    # initial_raw_band = 4
+    # adjusted_raw_band = 4
+    # effective_band_for_calc = 3
+    # adjustment = discount + 3 * (range/3) = premium = 0.40
+    # Factor = 1.40
+    
+    assert init_band == 4
+    assert adj_factor == 1.40
+