fix(tests): strengthen checksum verification assertion against regression

[Copilot]

The positive-only checksum assertion would pass even with the old regressed pattern (sha256sum -c checksums.txt --ignore-missing | grep -q ": OK"), since it's a substring match.

Changes

• tests/compiler_tests.rs: Add a negative assertion alongside the existing positive check to explicitly reject the grep -q pipe pattern:

assert!(
    template_content.contains("sha256sum -c checksums.txt --ignore-missing"),
    "Template should verify checksum using checksums.txt"
);
assert!(
    !template_content.contains("grep -q"),
    "Checksum verification should not pipe through grep"
);

Original prompt

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This section details on the original issue you should resolve

<issue_title>fix: strengthen checksum test assertion to guard against regression</issue_title>
<issue_description>The checksum test assertion in tests/compiler_tests.rs:148 is weaker than intended:

ust template_content.contains("sha256sum -c checksums.txt --ignore-missing")

This substring match would also pass against the old pattern (sha256sum -c checksums.txt --ignore-missing | grep -q ": OK"), so it doesn't guard against regression.

Suggested fix: Add a negative assertion alongside the positive check:

ust assert!( template_content.contains("sha256sum -c checksums.txt --ignore-missing"), "Template should verify checksum using checksums.txt" ); assert!( !template_content.contains("grep -q"), "Checksum verification should not pipe through grep" );

From PR #43 review feedback.
</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes fix: strengthen checksum test assertion to guard against regression #45

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