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Created February 28, 2022 06:47
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Solana Anchor: Test and Debug Rust with msg! and program-logs
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solana-anchor-debug-rust.md

What if you want to debug the Rust program itself in Anchor?

  1. In Rust, add msg!("Some variable: {:?}", variable);
  2. Run anchor test to run the program through the tests. However you won't find the output there.
  3. View the output instead in a file within your program-logs folder in your Anchor project. It'll be recreated each time you run the program.

This is subtly mentioned in the docs and can be found in the CLI docs here: https://book.anchor-lang.com/chapter_4/cli.html#test

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