Feature: LangGraph Final Coverage Push
  As a developer
  I want to achieve 90%+ code coverage for LangGraph
  So that all critical paths are tested

  Background:
    Given I have imported the necessary modules
    And I have a clean graph test environment

  Scenario: Execute graph workflow end-to-end
    Given I have a complete execution GraphConfig
    And I have created a LangGraph instance
    When I execute the full graph workflow
    Then the execution should succeed
    And execution history should be recorded

  Scenario: Test node execution conditions
    Given I have a GraphConfig with conditional nodes
    And I have created a LangGraph instance
    When I test all node execution paths
    Then all execution paths should be covered

  Scenario: Test graph state transitions
    Given I have a GraphConfig with state transitions
    And I have created a LangGraph instance
    When I test state update modes
    Then state transitions should work correctly

  Scenario: Test edge case execution flows
    Given I have a GraphConfig with edge cases
    And I have created a LangGraph instance
    When I execute edge case scenarios
    Then all edge cases should be handled

  Scenario: Test parallel execution edge cases
    Given I have a GraphConfig for parallel edge cases
    And I have created a LangGraph instance
    When I test parallel execution edge cases
    Then parallel edge cases should be handled

  Scenario: Test missing coverage lines directly
    Given I have GraphConfigs for missing lines
    And I have created LangGraph instances
    When I call uncovered methods directly
    Then graph missing lines should be executed

  Scenario: Test error handling and recovery
    Given I have a GraphConfig with error scenarios
    And I have created a LangGraph instance
    When I test graph error handling scenarios
    Then errors should be handled properly

  Scenario: Test all graph analysis methods
    Given I have complex GraphConfigs for analysis
    And I have created LangGraph instances
    When I test all analysis methods
    Then analysis methods should complete

  Scenario: Test visualization edge cases
    Given I have GraphConfigs for visualization
    And I have created LangGraph instances
    When I test visualization edge cases
    Then visualization should handle all cases

  Scenario: Execute comprehensive workflow
    Given I have a comprehensive test GraphConfig
    And I have created a LangGraph instance
    When I execute comprehensive test scenarios
    Then comprehensive coverage should be achieved