initial unified base tests

[jaysomani]

Migrates all shared adapter tests into Base.php following the dynamic pattern. All tests now create repos dynamically with uniqid() and clean up in finally blocks — no hardcoded owners, repos, or IDs.
Key changes:

Base.php fully rewritten with shared dynamic tests covering repository CRUD, tree, content, branches, commits, clone commands, pull requests, comments, search and owner
All adapter files implement setupAdapter() instead of setUp()
static::$owner and static::$defaultBranch used throughout
Duplicate tests removed from GiteaTest, GitLabTest, GitHubTest
Adapter-specific tests kept only where behavior genuinely differs
getOwnerName made consistent across GitLab and Gitea — requires repositoryId
Admin username changed to root across all adapters for consistency
testListBranchesEmptyRepo skipped in Base — each adapter overrides correctly

[chatgpt-codex-connector]

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[greptile-apps]

Greptile Summary

This PR consolidates previously duplicated adapter tests into a shared Base.php using dynamic repo names (uniqid()), finally-block cleanup, and assertEventually retry logic, while each adapter subclass now implements setupAdapter() instead of the removed createVCSAdapter() + setUp() pattern.

• Base.php gains ~50 shared test methods covering CRUD, tree/content, branches, commits, clone, PRs, comments, search, and owner lookup; adapter-specific behaviour (webhook events, tag cloning, commit statuses) is kept in each subclass.
• GitLab::getOwnerName drops the GET /user fallback and now requires a valid repositoryId, aligning it with the Gitea adapter's contract.
• Default admin username in docker-compose.yml is unified to root across Gitea, Forgejo, and Gogs.

Confidence Score: 4/5

Safe to merge after adding a skip override for testGetPullRequestFromBranchNoPR in GitHubTest

GitHubTest explicitly skips testGetPullRequestFromBranch because createBranch does not work in the GitHub test environment, but testGetPullRequestFromBranchNoPR — also introduced through Base — calls the same createBranch method without a matching skip, making CI failures on the GitHub adapter suite likely

tests/VCS/Adapter/GitHubTest.php — the missing skip override for testGetPullRequestFromBranchNoPR is the one change needed before this can merge cleanly

Important Files Changed

Filename	Overview
tests/VCS/Base.php	Fully rewritten shared test base with dynamic repo creation, assertEventually retry logic, and finally-block cleanup; testCreatePrivateRepository does not assert the private flag
tests/VCS/Adapter/GitHubTest.php	Duplicate tests removed and delegated to Base; skip overrides added for PR/comment/user tests, but testGetPullRequestFromBranchNoPR is missing a skip despite using createBranch which is flagged as non-functional in the GitHub test environment
tests/VCS/Adapter/GitLabTest.php	Migrated to setupAdapter(); duplicate CRUD/clone/PR tests removed; GitLab-specific search, webhook, and commit-status tests retained
tests/VCS/Adapter/GiteaTest.php	Migrated to setupAdapter(); testListBranchesEmptyRepo overridden correctly with finally-block cleanup; stale comment in the override body references a non-existent hardcoded owner
tests/VCS/Adapter/GogsTest.php	Migrated to setupAdapter(); unsupported Gogs features (PR API, commit status, languages) correctly skipped; auto_init behaviour for testListBranchesEmptyRepo well-documented
tests/VCS/Adapter/ForgejoTest.php	Migrated to setupAdapter(); createVCSAdapter removed; delegates entirely to GiteaTest and Base with no new issues
src/VCS/Adapter/Git/GitLab.php	getOwnerName now requires a valid repositoryId (throws on null/0); the GET /user fallback path removed; change is intentional and consistent with the Gitea adapter behaviour
docker-compose.yml	Default admin username for Gitea, Forgejo, and Gogs services changed from 'utopia' to 'root' for consistency across all adapters

_{Reviews (7): Last reviewed commit: "test: migrate additional shared tests to..." | Re-trigger Greptile}