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Implements all enhancements from Issue #52 to improve installation test coverage.

Changes

Enhanced Test Coverage

  • Added comprehensive test script (tests/installation-test.sh) with 9 test scenarios
  • Symlink verification for all critical dotfiles
  • Symlink target validation
  • ZDOTDIR compliance verification
  • Conditional file handling (.gitconfig, inputrc)
  • Idempotency testing (running install.sh twice)
  • Backup functionality validation
  • Shortcut generation verification
  • Environment isolation
  • Performance regression detection (<30s threshold)

Security Fixes

  • Critical: Eliminated command injection vulnerability (CVSS 9.0)
  • Replaced eval with allowlist-based variable expansion in install.sh
  • Only safe patterns expanded: ${HOME}, ${XDG_CONFIG_HOME}, $HOME, $XDG_CONFIG_HOME

Testing Infrastructure

  • Environment isolation for both standalone tests and CI
  • GitHub Actions workflow enhancements with artifact collection
  • Detailed diagnostics output (12 separate log files)
  • Fast execution (<300ms for full test suite)

Code Quality

  • Fixed 5 shellcheck SC2155 warnings
  • Applied shfmt formatting standards
  • Separated local variable declaration from assignment

Documentation

  • Updated README.md with comprehensive test coverage documentation
  • Added standalone test script usage instructions
  • Updated last modified date

Test Results

All 9 CI checks passing:

  • ✅ Shell Format Check
  • ✅ ShellCheck
  • ✅ Test Installation Script
  • ✅ Scan for Secrets
  • ✅ Session Handoff Verification
  • ✅ Pre-commit Hooks
  • ✅ AI Attribution Check
  • ✅ Commit Format Check
  • ✅ Commit Quality Analysis

Closes

Resolves #52

Session Handoff Updates:
- Document PR #59 comprehensive validation results
- Document incident: unintended host installation (17:29-18:56)
- Document full rollback and resolution (no data lost)
- Update startup prompt with critical warning
- Document host machine modifications

Generator Fix:
- Remove printf %q over-escaping in generate-shortcuts.sh
- Preserve variable expansion ($HOME, ${XDG_CONFIG_HOME})
- Fixes bookmark aliases: cf, cac, dt, etc.

Incident resolved, all systems working. Next session: fix PR #59 blockers.
Implements all enhancements from Issue #52 to improve installation
test coverage and boost agent score from 4.0 to 4.5+.

High Priority Enhancements:
- Add .zprofile symlink verification test
- Add idempotency test (run install.sh twice)
- Add artifact collection for failed CI runs
- Fix ZDOTDIR expansion in install.sh by setting XDG_CONFIG_HOME

Medium Priority Enhancements:
- Add symlink target verification
- Add conditional files testing (.gitconfig, inputrc)
- Add backup functionality validation

Low Priority Enhancements:
- Add path-based workflow triggers (optimize CI runs)
- Extract test logic to separate script (tests/installation-test.sh)
- Add performance regression detection (30s threshold)

Changes:
- .github/workflows/shell-quality.yml: Enhanced installation-test job
  with all test improvements and diagnostic artifact collection
- install.sh: Fixed ZDOTDIR expansion by setting XDG_CONFIG_HOME before
  evaluating extracted ZDOTDIR value
- tests/installation-test.sh: New comprehensive test script that can
  be run standalone or in CI, with colored output and diagnostics

All tests pass locally with 0 failures and <300ms execution time.
Critical fixes for PR #59:

1. Security: Replace eval with allowlist-based variable expansion
   - install.sh: Remove command injection vulnerability in ZDOTDIR expansion
   - Safe expansion of ${HOME} and ${XDG_CONFIG_HOME} patterns only

2. Testing: Add environment isolation to test script
   - tests/installation-test.sh: Unset inherited XDG variables before tests
   - Prevents tests from using parent environment settings

3. Code Quality: Fix 5 shellcheck SC2155 warnings
   - tests/installation-test.sh: Separate local declaration from assignment
   - Lines 171, 252, 279, 303, 304 - prevents masking return values

4. Documentation: Update README with comprehensive test coverage
   - Document 9 test scenarios from enhanced test suite
   - Update last modified date to 2025-11-03

Resolves #52
Fixes 3 remaining CI test failures:

1. Environment Isolation: Unset XDG variables in GitHub Actions
   - .github/workflows/shell-quality.yml: Add unset before install.sh runs
   - Prevents inheriting GitHub Actions environment settings
   - Ensures install.sh creates ZDOTDIR at expected test location

2. Shell Formatting: Apply shfmt formatting standards
   - tests/installation-test.sh: Fix redirect spacing (2> vs 2>)
   - tests/installation-test.sh: Fix inline comment spacing

3. Session Handoff: Document completed work per guidelines
   - SESSION_HANDOVER.md: Update with PR #59 fixes and next steps
   - Include required startup prompt format

All changes ensure consistent test environment across Docker and CI.
The backup verification test unsets ZDOTDIR before running install.sh,
then tries to use ZDOTDIR for verification. Add ZDOTDIR reset after
install.sh completes to fix the check.

This ensures the symlink verification at line 235 can find the .zshrc
symlink at the expected location.
@maxrantil maxrantil merged commit a0f3af7 into master Nov 3, 2025
9 checks passed
@maxrantil maxrantil deleted the fix/issue-52-installation-testing branch November 3, 2025 22:33
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enhancement: improve installation testing coverage

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