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Package source selection: An index missing the package is selected · case 05

An index missing the package is selected.

Member previewVariant 5 · 3 implementations · 9 checks per implementation

Case contract

Return first declared trusted nonmirror source containing the package, otherwise first trusted mirror containing it. Disabled and untrusted sources never participate.

Why this case matters

An offline model of package source selection, suitable for testing build and release tooling without external services.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
fixture 6	`"mirror"`	`null`	Failed

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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.

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