BufferLayout error when using createTransfer module to create a transaction about solana-pay HOT 2 CLOSED

For others encountering this issue, it is an issue with jest: jestjs/jest#4422

The jest issue causes buffer instanceof Uint8Array to be false, which is the issue OP is having.

I was able to workaround this issue by placing the following code into my jest setup script (jest.setup.js) (defined in setupFilesAfterEnv in jest config)

const originalHasInstance = Uint8Array[Symbol.hasInstance];
Object.defineProperty(Uint8Array, Symbol.hasInstance, {
  value(potentialInstance) {
    return (
      originalHasInstance.call(this, potentialInstance) ||
      Buffer.isBuffer(potentialInstance)
    );
  },
});

This extends the instanceof logic of Uint8Array to additionally check if the object is a buffer, and if so, instanceof Uint8Array will return true.

Hope it helps!

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Hmm I can't really tell what's going on, but this sounds like an issue with the new test rather than the createTransfer function itself. I would suggest opening a PR from your branch to the link-request branch and we can comment on that PR instead of an issue since this doesn't affect the master branch.

Looking at your code, I'm guessing the issue is related to this line? https://github.com/tyirenkyi/solana-pay/blob/7a935665ee5c91fd8e6aca5582eb10a300d4ba21/core/test/createTransfer.test.ts#L11

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