datahaven/.github/workflows/task-storage-layout.yml
Ahmad Kaouk da2847bbbf
test: Add storage layout checks for upgradeable contracts (#420)
## Summary

Implements storage layout testing for the upgradeable
`DataHavenServiceManager` contract to prevent state
   corruption during proxy upgrades.

  ## Changes

  ### New Files
- **`contracts/storage-snapshots/DataHavenServiceManager.storage.json`**
- Baseline storage layout
  snapshot
- **`contracts/storage-snapshots/README.md`** - Documentation for
updating snapshots and known
  limitations
- **`contracts/scripts/check-storage-layout.sh`** - CI script that
compares current layout against
  snapshot
- **`contracts/test/storage/StorageLayout.t.sol`** - Upgrade simulation
tests verifying state
  preservation
- **`.github/workflows/task-storage-layout.yml`** - CI workflow for
storage layout checks

  ### Modified Files
- **`.github/workflows/CI.yml`** - Added `storage-layout` job to run in
parallel with other checks

  ## How It Works

  **Two-pronged approach:**

1. **Snapshot Diff** - Compares current storage layout against committed
snapshot using `forge inspect`.
Catches unintended variable reordering, type changes, or gap
modifications.

2. **Upgrade Simulation** - Foundry tests that populate state, perform a
proxy upgrade, and verify all
  values survive:
     - `test_upgradePreservesState` - Verifies core state variables
- `test_upgradePreservesValidatorMappings` - Verifies
`validatorEthAddressToSolochainAddress` mapping
- `test_upgradePreservesMultipleValidators` - Verifies
`validatorsAllowlist` with multiple entries
- `test_functionalityAfterUpgrade` - Verifies contract remains
functional post-upgrade

  ## Normalization

  The snapshot comparison normalizes JSON to avoid false positives:
  - Removes `astId` (changes with compiler runs)
  - Removes `contract` (contains full file path)
- Removes `.types` section (contains unstable AST IDs embedded in type
keys)
  - Sorts by slot number

  ## Usage

  ```bash
  # Check storage layout against snapshot
  ./scripts/check-storage-layout.sh

  # Run upgrade simulation tests
  forge test --match-contract StorageLayoutTest -vvv

  # Update snapshot (when intentionally changing storage)
  forge inspect DataHavenServiceManager storage --json >
  storage-snapshots/DataHavenServiceManager.storage.json
```
  ## Test Plan

  - ./scripts/check-storage-layout.sh passes
  - forge test --match-contract StorageLayoutTest -vvv passes (4 tests)
  - CI workflow runs successfully
2026-02-05 11:08:35 +00:00

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YAML

# Storage Layout Check: Validates storage layout for upgradeable contracts
#
# Overview:
# 1. Compares current storage layout against committed snapshot
# 2. Runs upgrade simulation tests to verify state preservation
name: Storage Layout Check
on:
workflow_dispatch:
workflow_call:
# Explicit minimal permissions
permissions:
contents: read
env:
FOUNDRY_PROFILE: ci
jobs:
check:
name: Storage Layout
runs-on: ubuntu-latest
defaults:
run:
working-directory: contracts
steps:
- uses: actions/checkout@v4
with:
submodules: recursive
- name: Install Foundry
uses: foundry-rs/foundry-toolchain@v1
with:
version: v1.4.3
- name: Build contracts
run: forge build --extra-output storageLayout
- name: Negative check storage layout (should fail)
run: |
chmod +x scripts/check-storage-layout-negative.sh
./scripts/check-storage-layout-negative.sh
- name: Check storage layout
run: |
chmod +x scripts/check-storage-layout.sh
./scripts/check-storage-layout.sh
- name: Run upgrade simulation tests
run: forge test --match-contract StorageLayoutTest -vvv