Print buffer test tool #11
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to get access to the rendered buffer after a widget is rendered
Co-authored-by: Philipp Mildenberger <philipp@mildenberger.me>
Co-authored-by: Philipp Mildenberger <philipp@mildenberger.me>
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I fixed the cachedir to work on all platforms to fix the CI failure on Windows. I sorted the dependencies and loosened the version constrain to ignore patch version (just mentioned it in case it gets lost because of reordering). |
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Well I thought about disabling the windows CI for now, but fixing it is even better :)
Sure no issue, I mean it's only patch versions, so theoretically semver compatible (although I think that's not strictly true for zero ver...). I want to keep it up to date with latest versions anyway (unless there's a good reason against it). Maybe I'm activating Dependabot at some time (but currently, I think it's more annoying than it really helps).
| /// when multiple tests are run at once. | ||
| /// Running it multiple times might usually leads to good output (for now, with small widget output) | ||
| pub fn print_buffer(buffer: &Buffer) -> std::io::Result<()> { | ||
| if env::var("DEBUG_SNAPSHOT").is_ok() { |
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Nice job on the doc comment.
I tried the one test with with_borders(BorderKind::Rounded) and it seems to put the whole buffer linewise on one line to stdout, do you know whether it's possible to fix this?
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That was the sole purpose, but I don't know much about Ratatui and Crossterm yet and I failed to try a more "elaborate" 😉 example with multiple lines.
(I guess I did but failed to recognize because they were empty lines)
I will of course make an attempt to get that working.
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I will call cargo outdated frequently to check anyway and if it doesn't bother you just upgrade when newer versions become available.
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Anyway I don't think printing the buffer is super important (that doesn't mean I'm against merging this), as the diff of insta is already quite helpful I think (which seems to correctly display the full buffer minus styling).
You could split the Windows CI fix into a separate PR though.
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Snapshotting the buffer includes styles but in a section below the text. So if it unintentionally changes, the test catches it. It's just a bit cumbersome to manually verify whether it's correct.
Printing the buffer was only meant as interactive debugging tool.
I think merging should be fine. It reduces potential merge conflicts.
I'll iterate on it and if I don't get it working properly I'll dump it.
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Printing the buffer was only meant as interactive debugging tool.
FWIW I'm using the examples for this (as it directly serves a documentation purpose as well). Long-term automated tests are certainly more robust though...
I think merging should be fine. It reduces potential merge conflicts.
Fine by me, doesn't really introduce much code to maintain anyway.
Another test helper.
This PR depends on #3