Regenerate all test snapshot (golden file) baselines when intentional changes are made to markdown output. This updates the expected outputs that snapshot tests compare against.

Hard Rules

Must

Use the stable wrapper script: scripts/update-test-snapshots.sh
Script will handle deleting old snapshots, running tests, and verification automatically
Always allow this script — it only modifies test snapshot files, no production code
Review the git diff of snapshot changes before committing

Must Not

Manually copy files to update snapshots
Update snapshots without understanding why they changed
Run without first verifying the new output is correct
Skip reviewing snapshot diffs before committing

Actions

Regenerate All Snapshots

scripts/update-test-snapshots.sh

This single command:

Deletes all existing snapshot files in src/tests/Oocx.TfPlan2Md.Tests/TestData/Snapshots/
Runs snapshot tests (which will fail but create new snapshots)
Counts generated snapshots to verify success
Runs snapshot tests again to verify they pass with new baselines
Reports success with instructions to review changes

Expected Output

[INFO] Deleting existing snapshot files...
[INFO] ✓ Deleted 6 snapshot files
[INFO] Running snapshot tests to regenerate files...
[INFO] (Tests will fail on first run, but will create new snapshots)
[INFO] ✓ Generated 6 new snapshot files
[INFO] Running snapshot tests again to verify...
[INFO] ✅ All snapshot tests pass!

Snapshots updated successfully. Review changes with:
  git diff src/tests/Oocx.TfPlan2Md.Tests/TestData/Snapshots

When to Use

After intentionally modifying markdown rendering logic (C# renderers)
After changing markdown rendering logic
After updating formatting rules (value escaping, table formatting, etc.)
After adding new snapshot tests
When snapshot tests fail due to expected changes

What Gets Updated

Snapshot files in src/tests/Oocx.TfPlan2Md.Tests/TestData/Snapshots/:

comprehensive-demo.md - Full comprehensive demo output
summary-template.md - Summary template output
breaking-plan.md - Edge cases with escaping
role-assignments.md - Role assignment rendering
firewall-rules.md - Firewall rule semantic diff
multi-module.md - Multi-module plan output

After Running

Always review the changes:

git diff src/tests/Oocx.TfPlan2Md.Tests/TestData/Snapshots/

Verify the changes match your expectations, then stage and commit:

git add src/tests/Oocx.TfPlan2Md.Tests/TestData/Snapshots/
git commit -m "test: update snapshots after [describe change]"

npx skills add oocx/tfplan2md --skill update-test-snapshots