Oracle Testing Harness — Oracle Forge

Contract Details

Categorytesting

Files12

Price$7.99

Tech Stack

Solidity ^0.8.24 Foundry forge-std

Chains

Ethereum Arbitrum Base Optimism

Description

Mock oracle framework for testing oracle-dependent contracts. Provides configurable mock price feeds, simulated staleness, deviation injection, and VRF coordinator mocks. Essential for unit and integration testing of any oracle-consuming contract.

Features

✓ MockChainlinkAggregator with price manipulation
✓ Staleness simulation (configurable timestamps)
✓ Deviation injection for edge case testing
✓ MockVRFCoordinator with fulfillment control
✓ MockDataFeed with update scheduling
✓ Price sequence replay from historical data
✓ Revert simulation for failure testing
✓ Gas benchmarking utilities
✓ Foundry test helpers and assertions
✓ Integration test examples

oracle-testing-harness.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @title Oracle Testing Harness
/// @notice Mock oracle framework for testing oracle-dependent contracts.
contract OracleTestingHarness {
    address public immutable owner;
    uint256 public constant VERSION = 1;

    event Initialized(address indexed deployer);

    constructor() {
        owner = msg.sender;
        emit Initialized(msg.sender);
    }

    // ... full implementation in purchased package
}