Price Feed Version Mismatch: Test Failing on Ethereum Mainnet but Passing on Sepolia Testnet

[tanishqjotwani]

Hi, I'm facing an issue with one of my tests while deploying and testing my FundMe contract. The test passes without any errors on the Sepolia testnet but fails on the Ethereum mainnet due to a mismatch in the expected price feed version.

[FAIL: assertion failed: 6 != 4] testPricefeedVersionIsAccurate() (gas: 18896)

[EngrPips]

Hello @tanishqjotwani, Yeah, the version was updated to 6 on Mainnet I believe, Sorry for the confusion.

[tanishqjotwani]

Ohh , okay. Thank you for answering:)

[EngrPips]

You are welcome.

[AnaAse]

I replaced: assertEq(version, 4);

with: assertTrue(version == 4 || version == 6, "Version must be 4 or 6");

It works and it will accept either 4 or 6 but Im not sure where these two version numbers come from.

[EngrPips]

It is only of these values 6 & 4 that is correct, and it comes from the price feed contract, which you called getVersion or version. Because you used a logical or, the test passes if any of the conditions is satisfied.

[chainflash]

great