Imported from rdkcentral/tr69hostif (.github/skills/bdd-feature-generator/SKILL.md). Install upstream with npx skills add rdkcentral/tr69hostif --skill bdd-feature-generator. Copyright stays with the author.

BDD Feature Generator for tr69hostif

Purpose

Automatically generate BDD feature files in Gherkin format by analyzing the tr69hostif source code. This skill creates comprehensive behavioral documentation that can serve as:

• Functional documentation of TR-181 data model parameter handlers (GET/SET)
• Test specifications for L2 functional tests (test/functional-tests/)
• Requirements traceability linking handler source code to observable behavior
• Gap analysis baseline for comparing L2 tests vs implemented handlers

Usage

Invoke this skill when:

• Documenting existing tr69hostif parameter handlers in BDD format
• Creating test specifications for new TR-181 parameters
• Generating feature files for untested profiles (WiFi, MoCA, Ethernet, etc.)
• Performing gap analysis between L2 tests and source implementation
• Onboarding new team members with behavioral documentation of the daemon

Project Context

tr69hostif is a TR-069/TR-181 host interface daemon for RDK devices. It:

• Exposes ~708 TR-181 parameters via rbus DML and HTTP/WDMP-C interfaces
• Communicates with Parodus/WebPA for cloud management
• Calls Thunder JSON-RPC plugins for device state (NetworkManager, AuthService, etc.)
• Manages RFC, Bootstrap, and Non-RFC parameter stores backed by INI files
• Runs as a systemd service with multiple initialization threads

Prerequisites

Before running this skill:

1. Review the build system — src/Makefile.am and src/hostif/profiles/Makefile.am
2. Identify compiled profiles — Only document profiles that are actually built
3. Review existing feature files — Match the format in docs/features/ and test/functional-tests/features/
4. Check existing coverage — Read test/docs/L2_Test_Coverage.md for current gap data
5. Understand test interfaces — L2 tests use rbuscli (rbus DML), mock parodus binary (WebPA), and log scraping

Process

Step 1: Analyze Build Configuration

The tr69hostif build is Autotools-based. Identify compiled components from the Makefile chain:

# Top-level: identifies src/ as the main SUBDIR
cat Makefile.am | grep "SUBDIRS"
# → SUBDIRS = $(SUBDIRS_MOCA) $(SUBDIRS_WIFI) src

# Source level: identifies compiled subsystems
cat src/Makefile.am | grep "SUBDIRS"
# → SUBDIRS = hostif/handlers hostif/profiles
# → SUBDIRS += hostif/parodusClient
# → SUBDIRS += hostif/httpserver         (if !WITH_NEW_HTTP_SERVER_DISABLE)

# Profile level: identifies compiled TR-181 profile directories
cat src/hostif/profiles/Makefile.am | grep "SUBDIRS"
# → SUBDIRS = STBService Device DeviceInfo Ethernet IP Time
# → SUBDIRS += DHCPv4          (if WITH_DHCP_PROFILE)
# → SUBDIRS += StorageService   (if WITH_STORAGESERVICE_PROFILE)
# → SUBDIRS += InterfaceStack   (if WITH_INTFSTACK_PROFILE)
# → SUBDIRS += wifi             (if WITH_WIFI_PROFILE)

Always compiled profiles:

Conditionally compiled profiles:

Always compiled non-profile components:

Exclude from feature generation:

• src/hostif/include/ — Headers only
• src/hostif/handlers/src/gtest/, src/hostif/profiles/*/gtest/ — Unit tests (L1)
• src/hostif/*/docs/ — Existing documentation
• test/ — Test infrastructure
• scripts/ — Build/validation utilities

Step 2: Analyze Source Code Structure

For each compiled profile/component:

1. Read the header file (.h) — Identify all get_* and set_* handler declarations
2. Read the implementation (.cpp) — Extract TR-181 parameter names from string comparisons, Thunder plugin calls, file I/O paths
3. Identify the request handler — Map the profile to its hostIf_*_ReqHandler.cpp in handlers/src/
4. Note conditional compilation — #ifdef USE_WIFI_PROFILE, #ifdef BLE_TILE_PROFILE, etc.
5. Note Thunder dependencies — Any JSONRPCLink or org.rdk.* plugin invocations
6. Note file-backed parameters — INI files, RFC stores, /opt/secure/RFC/ paths

Key elements to extract for each profile:

Step 3: Create Feature File Structure

Feature files are generated to docs/features/.

mkdir -p docs/features

Naming convention for tr69hostif:

Step 4: Generate Feature Files

Use this template for tr69hostif feature files:

####################################################################################
# If not stated otherwise in this file or this component's Licenses.txt file the
# following copyright and licenses apply:
#
# Copyright [YEAR] RDK Management
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
####################################################################################

# Source: src/hostif/profiles/{ProfileDir}/{SourceFile}.cpp

Feature: {TR-181 Namespace} Parameter Handlers

  Background:
    Given the tr69hostif daemon is running and initialized
    And rbuscli is available on the system

  Scenario: GET {TR-181 Parameter Path}
    When I GET "{parameter.path}" via rbus
    Then the rbus response should not contain an error
    And the rbus response should contain a valid value

  Scenario: SET and GET {TR-181 Parameter Path}
    When I SET "{parameter.path}" to "{test_value}" as {type} via rbus
    And I GET "{parameter.path}" via rbus
    Then the rbus response should not contain an error
    And the rbus response should contain "{test_value}"

Step 5: Map Handler Code to Scenarios

For each TR-181 parameter handler, create scenarios covering:

1. GET happy path — Normal successful GET returning expected value
2. SET + GET roundtrip — SET a value, GET it back, verify match (for writable params)
3. Error conditions — GET/SET on invalid instance, wrong data type
4. File-backed persistence — Verify SET writes to INI file (for RFC/Bootstrap params)
5. Thunder-backed params — Verify GET maps Thunder plugin response correctly

Example mapping — rbus DML GET handler:

// Source: src/hostif/profiles/DeviceInfo/Device_DeviceInfo.cpp
int hostIf_DeviceInfo::get_Device_DeviceInfo_ModelName(HOSTIF_MsgData_t *stMsgData, bool *pChanged)
{
    // reads /etc/device.properties for MODEL_NUM
    ...
    strncpy(stMsgData->paramValue, modelName, TR69HOSTIFMGR_MAX_PARAM_LEN);
    stMsgData->paramtype = hostIf_StringType;
    return OK;
}

Generated scenario:

Scenario: GET Device.DeviceInfo.ModelName
  When I GET "Device.DeviceInfo.ModelName" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain a non-empty string

Example mapping — rbus DML SET+GET handler:

// Source: src/hostif/profiles/DeviceInfo/Device_DeviceInfo.cpp
int hostIf_DeviceInfo::set_Device_DeviceInfo_X_RDKCENTRAL_COM_FirmwareToDownload(
    HOSTIF_MsgData_t *stMsgData)
{
    snprintf(m_FirmwareToDownload, ...);
    return OK;
}

Generated scenarios:

Scenario: SET and GET FirmwareToDownload
  When I SET "Device.DeviceInfo.X_RDKCENTRAL-COM_FirmwareToDownload" to "test_image.bin" as string via rbus
  And I GET "Device.DeviceInfo.X_RDKCENTRAL-COM_FirmwareToDownload" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain "test_image.bin"

Example mapping — WebPA via mock parodus:

Scenario: SET parameter via WebPA
  When I send a WebPA SET payload:
    """
    {"command":"SET","parameters":[{"name":"Device.DeviceInfo.X_RDKCENTRAL-COM_RFC.Control.XconfUrl","dataType":0,"value":"https://mock/getSettings"}]}
    """
  Then the parodus mock should exit with code 0
  And the parodus log should contain '"statusCode":200'
  And the parodus log should contain '"message":"Success"'

Example mapping — Thunder-backed parameter:

Scenario: GET STB IP via Thunder NetworkManager
  Given the mock Thunder server is running on port 9998
  And "org.rdk.NetworkManager.GetIPSettings" returns {"ipaddress":"192.168.1.100"}
  When I GET "Device.DeviceInfo.X_COMCAST-COM_STB_IP" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain "192.168.1.100"

Example mapping — RFC file-backed parameter:

Scenario: Bootstrap parameter persisted to file
  When I SET "Device.DeviceInfo.X_RDKCENTRAL-COM_RFC.Bootstrap.PartnerProductName" to "TestProduct" as string via rbus
  And I GET "Device.DeviceInfo.X_RDKCENTRAL-COM_RFC.Bootstrap.PartnerProductName" via rbus
  Then the rbus response should contain "TestProduct"
  And the file "/opt/secure/RFC/bootstrap.ini" should contain "TestProduct"

Step 6: Document Parameter Tables

For profiles with many parameters, use Scenario Outline with Examples tables:

Scenario Outline: GET Device.IP interface parameters
  When I GET "<parameter>" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain "<expected_value>"

  Examples:
    | parameter                                        | expected_value       |
    | Device.IP.Interface.1.IPv6Prefix.1.Autonomous    | false                |
    | Device.IP.Interface.1.IPv6Address.1.Anycast       | false                |
    | Device.IP.Interface.1.IPv6Address.1.Enable        | true                 |
    | Device.IP.Interface.1.IPv4Address.1.Enable        | true                 |
    | Device.IP.Interface.1.IPv6Enable                  | true                 |

For documenting the full handler inventory of a profile, use a table scenario:

Scenario: Device.Ethernet.Interface parameter handler coverage
  Given the Ethernet profile is compiled
  Then the following parameters should have GET handlers
    | Parameter                                          | Handler Function                              | Type    |
    | Device.Ethernet.Interface.{i}.Enable               | get_Device_Ethernet_Interface_Enable           | boolean |
    | Device.Ethernet.Interface.{i}.Status               | get_Device_Ethernet_Interface_Status           | string  |
    | Device.Ethernet.Interface.{i}.MACAddress            | get_Device_Ethernet_Interface_MACAddress        | string  |
    | Device.Ethernet.Interface.{i}.MaxBitRate            | get_Device_Ethernet_Interface_MaxBitRate        | int     |
    | Device.Ethernet.Interface.{i}.DuplexMode            | get_Device_Ethernet_Interface_DuplexMode        | string  |
    | Device.Ethernet.Interface.{i}.Stats.BytesSent       | get_Device_Ethernet_Interface_Stats_BytesSent   | ulong   |
    | Device.Ethernet.Interface.{i}.Stats.BytesReceived    | get_Device_Ethernet_Interface_Stats_BytesReceived| ulong  |

Step 7: Create README Index

Create docs/features/README.md:

# tr69hostif Feature Documentation

This folder contains BDD feature files documenting the TR-181 parameter
handlers and daemon behavior implemented in `src/hostif/`.

## Feature Files Overview

| Feature File | Source Components | Description |
|---|---|---|
| `bootup_sequence.feature` | `src/hostif/src/hostIf_main.cpp`, handlers | Daemon startup, thread init, subsystem checks |
| `handler_communications.feature` | `handlers/`, `profiles/DeviceInfo/` | RFC, Bootstrap, Time, Chrony SET/GET via rbus |
| `device_ip_profiles.feature` | `profiles/DeviceInfo/`, `profiles/IP/` | DeviceInfo defaults, IP, Services, ReverseSSH |
| `webpa_parodus.feature` | `parodusClient/` | WebPA SET/GET via mock parodus |
| `wifi_parameters.feature` | `profiles/wifi/` | WiFi Radio, SSID, AP, EndPoint |
| `ethernet_interface.feature` | `profiles/Ethernet/` | Ethernet interface + stats |
| `http_server.feature` | `httpserver/` | WDMP-C protocol tests |

## Source Directory Mapping

Based on `src/Makefile.am` and `src/hostif/profiles/Makefile.am`:

### Always Compiled
- `profiles/STBService/` — STB service components (Audio, HDMI, eMMC, etc.)
- `profiles/Device/` — x_rdk profile
- `profiles/DeviceInfo/` — DeviceInfo, RFC, Bootstrap, Bluetooth
- `profiles/Ethernet/` — Ethernet interface and stats
- `profiles/IP/` — IP, IPv4Address, IPv6Address, Interface stats
- `profiles/Time/` — NTP, Chrony time management
- `handlers/` — Request handlers, rbus DML provider, message handler
- `parodusClient/` — WebPA/Parodus client

### Conditionally Compiled
- `profiles/DHCPv4/` — `WITH_DHCP_PROFILE`
- `profiles/StorageService/` — `WITH_STORAGESERVICE_PROFILE`
- `profiles/InterfaceStack/` — `WITH_INTFSTACK_PROFILE`
- `profiles/wifi/` — `WITH_WIFI_PROFILE`
- `httpserver/` — `!WITH_NEW_HTTP_SERVER_DISABLE`

### Not Documented (Not Compiled)
- `src/hostif/include/` — Headers only
- `src/hostif/*/docs/` — Existing documentation
- `src/hostif/*/gtest/` — Unit tests (L1)

## Test Interface Summary

| Interface | Tool | Log File | Used For |
|---|---|---|---|
| rbus DML | `rbuscli get/set` | `/opt/logs/tr69hostif.log.0` | Parameter GET/SET |
| WebPA/Parodus | `/usr/local/bin/parodus` mock binary | `/opt/logs/parodus.log` | WebPA JSON payloads |
| HTTP Server | `curl` to `http://127.0.0.1:11999` | `/opt/logs/tr69hostif.log.0` | WDMP-C JSON protocol |
| Thunder | Mock JSON-RPC on `:9998` | `/opt/logs/tr69hostif.log.0` | Plugin-backed params |

## Generation Date

Generated: {DATE}

Scenario Patterns for tr69hostif

Parameter GET Pattern (rbus DML)

Scenario: GET {TR-181 Parameter}
  Given the tr69hostif daemon is running and initialized
  When I GET "{Device.Namespace.Parameter}" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain a valid {type} value

Parameter SET+GET Roundtrip Pattern (rbus DML)

Scenario: SET and GET {TR-181 Parameter}
  Given the tr69hostif daemon is running and initialized
  When I SET "{Device.Namespace.Parameter}" to "{value}" as {type} via rbus
  And I GET "{Device.Namespace.Parameter}" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain "{value}"

WebPA SET/GET Pattern (mock parodus)

Scenario: SET {parameter} via WebPA
  When I send a WebPA SET payload:
    """
    {"command":"SET","parameters":[{"name":"{param}","dataType":{type},"value":"{value}"}]}
    """
  Then the parodus mock should exit with code 0
  And the parodus log should contain '"statusCode":200'
  And the parodus log should contain '"message":"Success"'

Scenario: GET {parameter} via WebPA
  When I send a WebPA GET payload:
    """
    {"command":"GET","names":["{param}"]}
    """
  Then the parodus mock should exit with code 0
  And the parodus log should contain '"statusCode":200'
  And the parodus log should contain '"value":"{expected}"'

HTTP Server Protocol Pattern (WDMP-C)

Scenario: GET parameter via HTTP server
  When I send HTTP GET to "http://127.0.0.1:11999" with body:
    """
    {"names":["{Device.Namespace.Parameter}"]}
    """
  Then the HTTP response status should be 200
  And the response body should contain '"statusCode":200'

Scenario: SET parameter via HTTP server with CallerID
  When I send HTTP POST to "http://127.0.0.1:11999" with CallerID header and body:
    """
    {"parameters":[{"name":"{param}","value":"{value}","dataType":{type}}]}
    """
  Then the HTTP response status should be 200
  And the response body should contain '"statusCode":200'

Scenario: SET parameter via HTTP server without CallerID
  When I send HTTP POST to "http://127.0.0.1:11999" without CallerID header
  Then the HTTP response status should be 500
  And the response body should contain "POST Not Allowed without CallerID"

Thunder Plugin Pattern

Scenario: GET {parameter} backed by Thunder {plugin}
  Given the mock Thunder server is running on port 9998
  And "{org.rdk.Plugin.Method}" returns {mock_json_response}
  When I GET "{Device.Namespace.Parameter}" via rbus
  Then the rbus response should not contain an error
  And the rbus response should contain the mapped value from the Thunder response

Daemon Bootup Log Pattern

Scenario: {Subsystem} initialization
  Given the tr69hostif binary has been invoked
  And the process has been active for at least 10 seconds
  When the daemon completes initialization
  Then the log should contain "{success_message}"
  And the log should NOT contain "{error_message}"

RFC/Bootstrap File Persistence Pattern

Scenario: {Parameter} persisted to {file}
  When I SET "{Device.DeviceInfo.X_RDKCENTRAL-COM_RFC.Bootstrap.Param}" to "{value}" as string via rbus
  And I GET "{Device.DeviceInfo.X_RDKCENTRAL-COM_RFC.Bootstrap.Param}" via rbus
  Then the rbus response should contain "{value}"
  And the file "{/opt/secure/RFC/bootstrap.ini}" should contain "{value}"

Negative Test Pattern

Scenario: GET nonexistent parameter
  When I GET "Device.Nonexistent.Parameter" via rbus
  Then the rbus response should contain an error

Scenario: SET wrong data type
  When I SET "{string_param}" to "123" as int via rbus
  Then the rbus response should indicate a type mismatch error

Scenario: Malformed WebPA JSON payload
  When I send a WebPA payload with malformed JSON
  Then the parodus mock should indicate a parse error

Quality Checklist

Before completing feature generation for tr69hostif:

• All compiled profile directories analyzed (profiles/Makefile.am SUBDIRS)
• Non-compiled/conditional profiles noted with build flags
• Each GET handler has at least one scenario
• Each SET handler has a SET+GET roundtrip scenario
• Thunder-backed parameters identified and documented with plugin/method
• File-backed parameters (RFC, Bootstrap, Chrony) include file persistence checks
• HTTP server protocol scenarios included (GET, POST, error cases)
• WebPA/Parodus scenarios use mock parodus binary pattern
• Negative/edge case scenarios documented (wrong type, nonexistent param, malformed JSON)
• Conditional compilation guards noted (#ifdef USE_WIFI_PROFILE, etc.)
• License headers included (Apache 2.0, RDK Management)
• Source file references included as comments
• @order-N tags used for pytest execution ordering
• README index created with profile mapping and test interface summary
• Gap analysis section compares features to test/functional-tests/tests/ implementations
• Scenarios are atomic (one parameter or behavior per scenario)
• Given/When/Then structure followed consistently

Output Structure

docs/
└── features/
    ├── README.md                         # Index, profile mapping, gap summary
    ├── bootup_sequence.feature           # Daemon lifecycle, thread init
    ├── handler_communications.feature    # RFC/Bootstrap/Time SET+GET via rbus
    ├── device_ip_profiles.feature        # DeviceInfo, IP, Services via rbus
    ├── webpa_parodus.feature             # WebPA SET/GET via mock parodus
    ├── http_server.feature               # WDMP-C HTTP protocol tests
    ├── wifi_parameters.feature           # WiFi Radio/SSID/AP/EndPoint
    ├── ethernet_interface.feature        # Ethernet interface + stats
    ├── moca_interface.feature            # MoCA interface/stats/QoS
    ├── stbservice_components.feature     # AudioOutput/HDMI/eMMC/SDCard
    ├── time_parameters.feature           # NTP/Chrony beyond basic
    ├── rfc_store.feature                 # RFC variable store, override precedence
    ├── bluetooth_parameters.feature      # BLE/Tile (conditional)
    ├── dhcpv4_client.feature             # DHCPv4 (conditional)
    ├── storage_service.feature           # StorageService (conditional)
    ├── interface_stack.feature           # InterfaceStack (conditional)
    └── negative_edge_cases.feature       # Wrong type, nonexistent param, etc.

Example: Complete tr69hostif Feature File

####################################################################################
# If not stated otherwise in this file or this component's Licenses.txt file the
# following copyright and licenses apply:
#
# Copyright 2026 RDK Management
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
####################################################################################

# Source: src/hostif/profiles/Ethernet/Device_Ethernet_Interface.cpp
# Source: src/hostif/profiles/Ethernet/Device_Ethernet_Interface_Stats.cpp

Feature: Device.Ethernet.Interface Parameter Handlers

  Background:
    Given the tr69hostif daemon is running and initialized
    And rbuscli is available on the system
    And the Ethernet profile is compiled (always compiled)

  Scenario: GET Ethernet interface enable status
    When I GET "Device.Ethernet.Interface.1.Enable" via rbus
    Then the rbus response should not contain an error
    And the rbus response should contain a boolean value

  Scenario: GET Ethernet interface status
    When I GET "Device.Ethernet.Interface.1.Status" via rbus
    Then the rbus response should not contain an error
    And the rbus response should contain one of "Up", "Down", "Unknown", "Dormant"

  Scenario: GET Ethernet interface MAC address
    When I GET "Device.Ethernet.Interface.1.MACAddress" via rbus
    Then the rbus response should not contain an error
    And the rbus response should contain a valid MAC address format

  Scenario Outline: GET Ethernet interface statistics
    When I GET "<parameter>" via rbus
    Then the rbus response should not contain an error
    And the rbus response should contain a numeric value

    Examples:
      | parameter                                              |
      | Device.Ethernet.Interface.1.Stats.BytesSent            |
      | Device.Ethernet.Interface.1.Stats.BytesReceived        |
      | Device.Ethernet.Interface.1.Stats.PacketsSent          |
      | Device.Ethernet.Interface.1.Stats.PacketsReceived      |
      | Device.Ethernet.Interface.1.Stats.ErrorsSent           |
      | Device.Ethernet.Interface.1.Stats.ErrorsReceived       |
      | Device.Ethernet.Interface.1.Stats.DiscardPacketsSent   |
      | Device.Ethernet.Interface.1.Stats.DiscardPacketsReceived|

  Scenario: GET Ethernet via WebPA wildcard
    When I send a WebPA GET payload:
      """
      {"command":"GET","names":["Device.Ethernet.Interface.1."]}
      """
    Then the parodus mock should exit with code 0
    And the parodus log should contain '"statusCode":200'

  Scenario: Ethernet interface handler coverage
    Given the Ethernet profile source is analyzed
    Then the following GET handlers should exist
      | Parameter                                           | Source File                              |
      | Device.Ethernet.Interface.{i}.Enable                | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.Status                | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.Name                  | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.LastChange             | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.Upstream               | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.MACAddress              | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.MaxBitRate              | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.DuplexMode              | Device_Ethernet_Interface.cpp            |
      | Device.Ethernet.Interface.{i}.Stats.BytesSent         | Device_Ethernet_Interface_Stats.cpp      |
      | Device.Ethernet.Interface.{i}.Stats.BytesReceived     | Device_Ethernet_Interface_Stats.cpp      |
      | Device.Ethernet.Interface.{i}.Stats.PacketsSent       | Device_Ethernet_Interface_Stats.cpp      |
      | Device.Ethernet.Interface.{i}.Stats.PacketsReceived   | Device_Ethernet_Interface_Stats.cpp      |
      | Device.Ethernet.Interface.{i}.Stats.ErrorsSent        | Device_Ethernet_Interface_Stats.cpp      |
      | Device.Ethernet.Interface.{i}.Stats.ErrorsReceived    | Device_Ethernet_Interface_Stats.cpp      |
      | Device.Ethernet.Interface.{i}.Stats.DiscardPacketsSent | Device_Ethernet_Interface_Stats.cpp     |
      | Device.Ethernet.Interface.{i}.Stats.DiscardPacketsReceived | Device_Ethernet_Interface_Stats.cpp |

Integration with Gap Analysis

After generating feature files, use them for gap analysis against the L2 test suite:

Step 1: Map Features to Existing Tests

docs/features/bootup_sequence.feature     ↔ test/functional-tests/tests/test_bootup_sequence.py
docs/features/handler_communications.feature ↔ test/functional-tests/tests/test_handlers_communications.py
docs/features/device_ip_profiles.feature   ↔ test/functional-tests/tests/tr69hostif_deviceip.py
docs/features/webpa_parodus.feature        ↔ test/functional-tests/tests/tr69hostif_webpa.py
docs/features/ethernet_interface.feature   ↔ (NO TEST FILE — gap)
docs/features/wifi_parameters.feature      ↔ (NO TEST FILE — gap)
docs/features/http_server.feature          ↔ (NO TEST FILE — gap)

Step 2: Count Coverage

For each feature file:

1. Count total scenarios (= total testable behaviors)
2. Count scenarios that have a matching test_* function in test/functional-tests/tests/
3. Calculate coverage = matched / total

Step 3: Identify Missing Tests

Features without test coverage fall into categories:

Step 4: Identify Undocumented Tests

Tests that exist in test/functional-tests/tests/ but have no matching scenario in the original test/functional-tests/features/ files. These should be documented retroactively.

Step 5: Generate Gap Report

Include a summary table in docs/features/README.md:

| Profile | Feature Scenarios | L2 Tests | Coverage | Top Gaps |
|---|:---:|:---:|:---:|---|
| Bootup lifecycle | 18 | 18 | 100% | — |
| DeviceInfo params | 172 | ~20 | ~12% | Thunder, BT, ProcessStatus |
| WiFi | 153 | 0 | 0% | Entire profile |
| MoCA | 99 | 0 | 0% | Entire profile |

Existing Coverage Reference

The comprehensive coverage analysis is maintained in:

• test/docs/L2_Test_Coverage.md — Full per-parameter handler counts and gap data
• test/functional-tests/automatics/ — Automatics test gap analysis tooling

Current L2 Test Layout

test/functional-tests/
├── features/                                   # Original BDD feature files (docs only, not wired to pytest-bdd)
│   ├── tr69hostif_bootup_sequence.feature
│   ├── tr69hostif_deviceip.feature
│   ├── tr69hostif_handlers_communications.feature
│   └── tr69hostif_webpa.feature
├── tests/                                      # Runnable pytest functions
│   ├── test_bootup_sequence.py                 # orders 1–18: log scraping
│   ├── test_handlers_communications.py         # orders 19–27: rbus SET+GET (RFC, Bootstrap, Chrony)
│   ├── tr69hostif_deviceip.py                  # orders 25–28: rbus GET (DeviceInfo, IP, Services, SSH)
│   ├── tr69hostif_webpa.py                     # orders 29–44: mock parodus WebPA SET/GET
│   ├── helper_functions.py                     # Shell/log/rbus helper functions
│   ├── basic_constants.py                      # Shared constants (LOG_FILE, RBUS_EXCEPTION_STRING, etc.)
│   └── profile_helper_functions.py             # ⚠ Broken stub (GREP_STRING undefined)
└── automatics/                                 # Automatics gap analysis tooling
    ├── generate_test_gap_report.py
    ├── format_xls.py
    ├── xls_to_markdown.py
    └── requirements.txt

Test runner: pytest with @pytest.mark.run(order=N), executed sequentially. Interfaces exercised: rbuscli (rbus DML), mock parodus binary (WebPA), log scraping (/opt/logs/tr69hostif.log.0).

Maintenance

When tr69hostif source code changes:

1. New parameter handler added — Add scenario to the appropriate .feature file; add parameter to handler coverage table
2. New profile compiled — Create a new .feature file; add to README index
3. Thunder plugin call added — Document the plugin/method mapping; note mock requirement
4. Handler removed — Remove corresponding scenario; note in gap analysis
5. Build flag changed — Update conditional compilation notes in README
6. L2 test added — Update gap analysis coverage numbers
7. Version tag — Include generation date in README

Related Skills

• technical-documentation-writer — For detailed architecture and API docs (docs/architecture/, docs/api/)
• memory-safety-analyzer — For safety analysis of handler code
• thread-safety-analyzer — For concurrency analysis of daemon threads
• quality-checker — For running static analysis and build verification
• tr69hostif-issue-triage — For correlating device logs with source code