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HDMI CEC L3 Test Document

Overview

This document describes the L3 Test Procedure for the HDMI CEC module.

Acronyms, Terms and Abbreviations

  • CEC - Consumer Electronics Control
  • HAL - Hardware Abstraction layer
  • HDMI - High Definition Multimedia Interface
  • API - Application Program Interface
  • SoC - System on Chip
  • DUT - Device Under Test
  • LA - Logical Address
  • PA - Physical Address

References

Level 3 Test Cases High Level Overview

# Test-case Description HAL APIs Source Sink
1 Transmit CEC Commands Send predefined CEC commands from the DUT and verify if the command is successfully transmitted using the CEC adapter HdmiCecTx() Y Y
2 Receive CEC commands Send predefined CEC commands from the CEC adapter, verify if the DUT successfully receives the command, and check the response through call-backs. HdmiCecTx() Y Y

Level 3 Python Test Cases High Level Overview

The class diagram below illustrates the flow of HDMI CEC Python test cases:

---
title: HDMI-CEC - Python Class Flow
---
classDiagram
    testControl <|-- ut_raft : inherits
    class ut_raft{
    }
    ut_raft <|-- hdmiCECHelperClass : inherits
    hdmiCECHelperClass <|-- L3_TestClasses : inherits
    L3_TestClasses ..> hdmiCEC : uses
    note for testControl "uses rackConfig.yml and deviceConfig.yml"
    note for hdmiCEC "uses platformProfile.yml"
    note for L3_TestClasses "uses hdmiCECTestCommands.yml"
    note for ut_raft "suite Navigator uses testSuite.yml"
  • testControl
  • Test Control Module for running rack Testing. This module configures the DUT based on the rack configuration file provided to the test.
  • This class is defined in RAFT framework. For more details refer RAFT
  • ut_raft
  • Python based testing framework for writing engineering tests.
  • It provides common functionalities like menu navigation, configuration reader, reading user response etc.
  • For more details ut-raft
  • hdmiCEC
  • This is test helper class which communicates with the L3 C/C++ test running on the DUT through menu
  • L3_TestClasses
  • These are the L3 test case classes
  • Each class covers the each test use-case defined in L3 Test use-cases table

YAML File Inputs

  • rackConfig.yaml
  • Identifies the rack configuration and platform used
  • References platform-specific config from deviceConfig.yaml

  • For more details refer RAFT and example_rack_config.yml

  • deviceConfig.yaml

  • Specifies overall configuration for the platform
  • Can be overridden by:
    • Changing locally .yaml file directory
    • Using --deviceConfig command line switch

  • For more details refer RAFT and example_device_config.yml

  • componentProfile.yaml/platformProfile.yaml

  • Contains component-specific configurations
  • Contains platform wide configuration broken down into separate components

  • Example configuration file sink_hdmiCEC

  • hdmiCECTestCommands.yaml

  • This configuration file contains the list of CEC commands.

  • Example configuration file hdmiCECTestCommands.yml

  • testConfig.yaml

  • This configuration file contains the list of menu items for C/C++ L3 test running on DUT
  • Example configuration file hdmiCEC_testConfig.yml