import pytest

def test_pdp_context(bg95_mock):
    """Test PDP context configuration and activation."""
    # Configure
    assert bg95_mock.configure_pdp_context(1, "IP", "iot.apn") is True
    
    # Activate
    assert bg95_mock.activate_pdp_context(1) is True
    
    # Check IP
    ip = bg95_mock.get_ip_address(1)
    assert ip == "10.0.0.5"

def test_socket_lifecycle(bg95_mock):
    """Test opening, sending, and closing a socket."""
    # Open
    # Note: open_socket returns -1 on failure, or 0/result on success/URC
    # In our mock, it returns 0 via URC simulation.
    # The synchronous open_socket method waits for it.
    res = bg95_mock.open_socket(1, 0, "TCP", "8.8.8.8", 80)
    assert res == 0
    
    # Send
    assert bg95_mock.send_data_hex(0, b"Hello") is True
    
    # Receive
    data = bg95_mock.receive_data(0, 100)
    assert data == b"Hello from Mock!"
    
    # Close
    assert bg95_mock.close_socket(0) is True

def test_file_operations(bg95_mock):
    """Test file upload and delete."""
    assert bg95_mock.upload_file("test.txt", b"content") is True
    assert bg95_mock.delete_file("test.txt") is True

def test_engineering_info(bg95_mock):
    """Test retrieving serving cell info."""
    info = bg95_mock.get_serving_cell_info()
    assert info['tech'] == "LTE"
    assert info['cellid'] == "1A2B3C"
    assert info['rsrp'] == -105

def test_sim_diagnostics(bg95_mock):
    """Test reading forbidden PLMNs."""
    fplmns = bg95_mock.read_forbidden_plmns()
    # Mock returns "64F010..." -> 460-01
    assert "460-01" in fplmns