Add end to end tests for subpackage support on the Porch v1alpha1 API

[liamfallon]

Add end to end tests for subpackage support on the Porch v1alpha1 API

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Important

The CI on this PR will not pass until #1009 is merged

Description

• What changed: End to end subpackage tests added
• Why it’s needed: There were no end to end test up to now
• How it works: The endto end success and failure cases for subpackage clone and upgrade are tested

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Related Issue(s)

• Closes/Fixes Write end to end tests for the v1alpha1 implementation of subpackage clone and upgrade support #1010

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Type of Change

• Bug fix
• New feature
• Enhancement
• Refactor
• Documentation
• Tests
• Other: ________

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Checklist

• Code follows project style guidelines
• Self-reviewed changes
• Tests added/updated
• Documentation added/updated
• All tests and gating checks pass

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AI Disclosure

• I have used AI in the creation of this PR.

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[Copilot]

Pull request overview

This PR adds end-to-end coverage for v1alpha1 subpackage clone/upgrade behavior and introduces supporting implementation changes in the task handler and upgrade mutation to make subpackage operations work end-to-end.

Changes:

• Add new e2e scenarios covering subpackage clone/upgrade success and failure cases (including nested paths).
• Add subpackage-aware handling in the generic task handler (injecting/upgrading subpackage resources into the parent package).
• Add subpackage-aware filtering in the upgrade mutation and add unit tests for subpackage dir validation/helpers.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 10 comments.

Show a summary per file

File	Description
test/e2e/api/rpkg_subpkg_test.go	New e2e tests exercising subpackage clone/upgrade success and failure scenarios.
pkg/task/upgrade.go	Filters local resources to a subpackage subtree when SubpackageDir is set.
pkg/task/upgrade_test.go	Adds unit tests for upgrade behavior when SubpackageDir is present/missing.
pkg/task/generictaskhandler.go	Applies subpackage clone/upgrade tasks by merging subpackage resources into the parent revision.
pkg/task/generictaskhandler_test.go	Adds tests for subpackage task application and resource insertion/upgrade behavior.
api/porch/v1alpha1/util.go	Adds SubpackageDir validation and changes GetSubpackageDir signature/behavior.
api/porch/v1alpha1/util_test.go	Adds tests for SubpackageDir validation and GetSubpackageDir.

[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.