<h2>About the Bounty</h2>Your Mission:The <a target="_blank" rel="noopener noreferrer nofollow" href="https://github.com/pyth-network/pyth-crosschain/tree/main/target_chains/solana/programs/pyth-solana-receiver">Pyth Solana Receiver</a> is the main program to post Pyth price updates onto Solana. This program takes in a verifiable price update and posts it onto an account with struct PriceUpdateV2. Any account owned by the Pyth Solana Receiver is guaranteed to be a valid price update, that other programs can consume.The problem is it’s hard to craft verifiable price updates on localnet so that consumer protocols can test their programs. This is because verifiable price updates are complicated and include merkle proofs and signatures.One solution to this can be creating a stub Pyth Solana Receiver. This is a program that would get deployed on localnet at the same address as Pyth Solana Receiver. However, it doesn’t need to verify price updates to create PriceUpdateV2, instead anyone can call the program with the price update parameters they want (price, conf, exponent, feed_id, publish_time, prev_publish_time) and it will create a PriceUpdateV2 with those parameters.This makes it easy for developers to test their protocol consuming PriceUpdateV2 accounts since they can create as many PriceUpdateV2 accounts as they want in localnet, with their desired parameters.Implementation SuggestionThe source code of the Pyth Solana Receiver is here <a target="_blank" rel="noopener noreferrer nofollow" href="https://github.com/pyth-network/pyth-crosschain/tree/main/target_chains/solana">https://github.com/pyth-network/pyth-crosschain/tree/main/target_chains/solana</a> . You should add your testing stub here. Please ensure that external developers can easily import your testing stub as a Cargo dependency.A similar testing stub exists for EVM contracts. You may wish to consult its source code for inspiration: <a target="_blank" rel="noopener noreferrer nofollow" href="https://github.com/pyth-network/pyth-crosschain/blob/main/target_chains/ethereum/sdk/solidity/MockPyth.sol">https://github.com/pyth-network/pyth-crosschain/blob/main/target_chains/ethereum/sdk/solidity/MockPyth.sol</a>About:The Pyth Network is a first-party financial data oracle network that delivers on-demand, low-latency price data for over 500 assets on Solana and over 50 other chains. As of today, there are about $5B in Total Value Secured by the Pyth Price Feeds and the latter has facilitated more than $400B in total trading volume across since inception.Most oracles today are push oracles where the oracle operator is responsible for submitting price updates to the blockchain. Pyth is different: it is a&nbsp;pull oracle&nbsp;where anyone can permissionlessly update the on-chain price.Please note that the Pyth Pull Oracle has only been recently deployed on Solana mainnet — you can find the documentation <a target="_blank" rel="noopener noreferrer nofollow" href="https://docs.pyth.network/price-feeds/use-real-time-data/solana">here</a>.Submission Requirements:<ul><li>A pull request containing the implementation of both methods and the unit tests submitted via Superteam website.</li></ul>Grading:<ul><li>Douro Labs engineers (Pyth Network contributors) will review all codes submitted within 5 days of the submission deadline.</li><li>The winner of this bounty will be selected based on how elegant and secure is the code</li></ul>Bounty Prizes:<ul><li>The developer with the best/selected code will be rewarded with 1,000 PYTH</li></ul><h4>Resources</h4><ul><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://pyth.network">Explore Pyth</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://docs.pyth.network">Documentation</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://docs.pyth.network/price-feeds/best-practices">Best Practices</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://docs.pyth.network/price-feeds/pull-updates">How Pull Oracles Work</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://docs.pyth.network/price-feeds/how-pyth-works/pythnet">Pythnet Appchain</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://docs.pyth.network/price-feeds/use-real-time-data/evm">Pyth on EVM</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://discord.com/invite/PythNetwork">Discord</a></li><li><a target="_blank" rel="noopener noreferrer nofollow" href="https://t.me/Pyth_Network">Telegram</a></li></ul><hr><h4>Terms &amp; Disclaimer:</h4>Pyth Data Association&nbsp;("PDA")&nbsp;is&nbsp;a nonprofit Swiss association whose mission is to support the independent growth and development of the&nbsp;Pyth Network.&nbsp;PDA&nbsp;has established the Pyth Ecosystem Grant Program&nbsp;(this "Program")&nbsp;to encourage independent contributions from new participants&nbsp;on&nbsp;the&nbsp;Pyth&nbsp;Network. Nothing in this Program,&nbsp;nor any&nbsp;related documentation or webpage,&nbsp;should&nbsp;be construed as establishing an employment, contractor,&nbsp;partnership, joint venture, legal&nbsp;or agency relationship&nbsp;for any purpose&nbsp;between PDA&nbsp;and&nbsp;any&nbsp;grantee or any of his&nbsp;or her&nbsp;personnel, agent, assigns or other representatives of any kind,&nbsp;and no authority to bind PDA shall be granted to anyone at any time whatsoever. The grantee will report to all applicable government agencies as income all compensation received by&nbsp;them&nbsp;pursuant to this Program. Grantee shall assign&nbsp;all&nbsp;title and interest in the deliverables (including all Intellectual Property Rights) to&nbsp;PDA; provided that,&nbsp;PDA&nbsp;shall irrevocably and perpetually grant to the general public, including the&nbsp;Pyth&nbsp;token holder community, all rights and licenses in and to the deliverables pursuant to the terms and conditions of the Apache 2.0 open source license. Furthermore, PDA reserves the right to conduct any and all compliance screenings, including but not limited to, checks against sanctions lists, identity verification processes, and other Anti-Money Laundering (AML) and Know Your Customer (KYC) procedures as mandated by applicable law and within the relevant legal framework. Such compliance measures may impact or impede the disbursement of any awards under this Program.By accessing and using this website, including but not limited to participating in Pyth Ecosystem Grant Program, you acknowledge and agree to the terms outlined in Pyth Data Association's Privacy Policy, which can be reviewed at&nbsp;<a target="_blank" rel="noopener noreferrer nofollow" href="https://pythdataassociation.com/privacy-policy">https://pythdataassociation.com/privacy-policy</a>.

Developer | Pyth Pull Oracle on Solana: Testing Stub