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Access Control Test Suite

Overview​

The access control test suite (access-control.spec.ts) validates the KagePool system's role-based access control mechanisms, ensuring proper permission management and secure access to system functions.

Access Control Structure​

Test Categories​

Role Management​

Role Management Test Cases

Role Assignment​

  • Description: Tests role assignment functionality
  • Key Assertions:
    • Role granting
    • Role revocation
    • Permission inheritance
    • Role validation

Role Hierarchy​

  • Description: Tests role hierarchy enforcement
  • Key Assertions:
    • Access levels
    • Permission scope
    • Role relationships
    • Inheritance rules

Permission Control​

Permission Test Cases

Function Access​

  • Description: Tests function-level access control
  • Key Assertions:
    • Function restrictions
    • Permission checks
    • Access modifiers
    • Error handling

Operation Scope​

  • Description: Tests operation scope limitations
  • Key Assertions:
    • Scope boundaries
    • Resource access
    • Operation limits
    • Context validation

Implementation Details​

Test Configuration​

interface AccessConfig {
  roles: {
    ADMIN: string;
    OPERATOR: string;
    USER: string;
  };
  permissions: {
    [key: string]: string[];
  };
}

const ACCESS_CONFIG: AccessConfig = {
  roles: {
    ADMIN: ethers.utils.id("ADMIN_ROLE"),
    OPERATOR: ethers.utils.id("OPERATOR_ROLE"),
    USER: ethers.utils.id("USER_ROLE"),
  },
  permissions: {
    ADMIN: ["all"],
    OPERATOR: ["manage_pools", "distribute_rewards"],
    USER: ["stake", "withdraw", "claim"],
  },
};

Test Scenarios​

Access Operations​

Operation Test Cases

Role Management Flow​

describe("Role Management", () => {
  it("should grant roles correctly", async () => {
    // Test implementation
  });

  it("should enforce role hierarchy", async () => {
    // Test implementation
  });
});

Permission Checks​

describe("Permission Control", () => {
  it("should restrict function access", async () => {
    // Test implementation
  });

  it("should validate operation scope", async () => {
    // Test implementation
  });
});

Security Considerations​

Critical Checks​

  • Role validation
  • Permission scope
  • Access control
  • State consistency

Safety Measures​

  • Role separation
  • Permission granularity
  • Access logging
  • State validation

Test Coverage​

  • ✅ Role Assignment
  • ✅ Role Revocation
  • ✅ Role Hierarchy
  • ✅ Permission Scope
  • ✅ Access Levels

Performance Analysis​

Access Metrics​

  • Permission checks
  • Role validation
  • Access verification
  • State updates

System Impact​

  • Gas costs
  • Memory usage
  • Storage access
  • Event generation

Implementation Notes​

Key Functions​

// Role management
function grantRole(bytes32 role, address account) external;
function revokeRole(bytes32 role, address account) external;

// Permission checks
function hasRole(bytes32 role, address account) public view returns (bool);
function checkPermission(bytes32 permission) internal view;

// Access modifiers
modifier onlyRole(bytes32 role) {
    require(hasRole(role, msg.sender), "AccessControl: unauthorized");
    _;
}

Test Utilities​

  • Role simulation
  • Permission testing
  • Access verification
  • State validation

Monitoring and Verification​

Access Events​

event RoleGranted(
    bytes32 indexed role,
    address indexed account,
    address indexed sender
);

event RoleRevoked(
    bytes32 indexed role,
    address indexed account,
    address indexed sender
);

event PermissionDenied(
    address indexed account,
    bytes32 indexed permission,
    string reason
);

State Verification​

  • Role assignments
  • Permission grants
  • Access history
  • State consistency

Error Handling​

Access Errors​

error UnauthorizedAccess(address account, bytes32 role);
error InvalidRole(bytes32 role);
error InsufficientPermissions(bytes32 permission);
error InvalidOperation(string operation);

Recovery Procedures​

  • Role restoration
  • Permission reset
  • Access recovery
  • State cleanup

Access Patterns​

Role Flow​

Permission Flow​

  1. Role validation
  2. Permission check
  3. Scope verification
  4. Operation execution
  5. State update
  6. Event emission