# Financial Workflow System - Test Plan

## Overview

This document outlines the complete testing strategy for the financial workflow system implementing the "會計管帳，出納管錢" (Accountant manages books, Cashier manages money) principle.

---

## Test Environment Setup

### Prerequisites
```bash
# 1. Run setup script
./setup-financial-workflow.sh

# 2. Verify test users created
php artisan tinker
>>> User::where('email', 'like', '%@test.com')->pluck('email', 'name')

# 3. Check permissions
>>> Role::with('permissions')->get()
```

### Test Users
| Email | Password | Role | Purpose |
|-------|----------|------|---------|
| cashier@test.com | password | finance_cashier | Test cashier operations |
| accountant@test.com | password | finance_accountant | Test accountant operations |
| chair@test.com | password | finance_chair | Test chair approvals |
| requester@test.com | password | finance_requester | Test document creation |

---

## 1. Manual Testing Checklist

### 1.1 Stage 1: Approval Workflow

#### Small Amount (< 5,000) - Cashier → Accountant
- [ ] **Step 1**: Login as `requester@test.com`
  - [ ] Navigate to `/admin/finance-documents/create`
  - [ ] Create document with:
    - Title: "小額報銷測試"
    - Amount: 3,000
    - Request Type: expense_reimbursement
    - Upload attachment
  - [ ] Verify document created with status "pending"
  - [ ] Verify amount_tier automatically set to "small"

- [ ] **Step 2**: Login as `cashier@test.com`
  - [ ] Navigate to `/admin/finance-documents`
  - [ ] Find pending document
  - [ ] Click "Approve"
  - [ ] Verify status changed to "approved_cashier"
  - [ ] Verify email sent to accountant

- [ ] **Step 3**: Login as `accountant@test.com`
  - [ ] View document
  - [ ] Click "Approve"
  - [ ] Verify status changed to "approved_accountant"
  - [ ] Verify message shows "小額申請審核完成，可以製作付款單"
  - [ ] Verify "Create Payment Order" button appears

#### Medium Amount (5,000-50,000) - Cashier → Accountant → Chair
- [ ] **Step 1**: Create document with amount: 25,000
- [ ] **Step 2**: Cashier approves
- [ ] **Step 3**: Accountant approves
  - [ ] Verify message shows "已送交理事長審核"
- [ ] **Step 4**: Login as `chair@test.com`
  - [ ] Approve document
  - [ ] Verify status changed to "approved_chair"
  - [ ] Verify message shows "審核流程完成"

#### Large Amount (> 50,000) - Cashier → Accountant → Chair → Board
- [ ] **Step 1**: Create document with amount: 75,000
- [ ] **Step 2-4**: Complete cashier, accountant, chair approvals
- [ ] **Step 5**: Verify `requires_board_meeting` flag is true
- [ ] **Step 6**: Verify message shows "大額申請仍需理事會核准"

---

### 1.2 Stage 2: Payment Workflow

#### Create Payment Order (Accountant)
- [ ] **Step 1**: Login as `accountant@test.com`
- [ ] **Step 2**: Navigate to approved document
- [ ] **Step 3**: Click "製作付款單"
- [ ] **Step 4**: Fill payment order form:
  - Payee Name: "Test Vendor"
  - Payment Method: "bank_transfer"
  - Bank Name: "Test Bank"
  - Bank Code: "007"
  - Account Number: "1234567890"
  - Amount: (auto-filled from document)
  - Notes: "測試付款單"
- [ ] **Step 5**: Submit form
- [ ] **Step 6**: Verify:
  - [ ] Payment order created with unique number (PO-YYYYMMDD-####)
  - [ ] Status is "pending_verification"
  - [ ] finance_document updated with payment_order_created_at
  - [ ] Redirect to payment order show page

#### Verify Payment Order (Cashier)
- [ ] **Step 1**: Login as `cashier@test.com`
- [ ] **Step 2**: Navigate to `/admin/payment-orders`
- [ ] **Step 3**: Find pending payment order
- [ ] **Step 4**: Click to view details
- [ ] **Step 5**: Review payment information
- [ ] **Step 6**: Option A - Approve:
  - [ ] Enter verification notes
  - [ ] Click "通過覆核"
  - [ ] Verify status changed to "verified"
  - [ ] Verify execution form appears
- [ ] **Step 7**: Option B - Reject:
  - [ ] Enter rejection reason
  - [ ] Click "駁回"
  - [ ] Verify status changed to "cancelled"

#### Execute Payment (Cashier)
- [ ] **Step 1**: With verified payment order
- [ ] **Step 2**: Fill execution form:
  - Transaction Reference: "TXN-2025-001"
  - Upload payment receipt (PDF/image)
  - Execution notes: "已完成轉帳"
- [ ] **Step 3**: Click "確認執行付款"
- [ ] **Step 4**: Verify:
  - [ ] Status changed to "executed"
  - [ ] Execution status is "completed"
  - [ ] Receipt can be downloaded
  - [ ] finance_document updated with payment_executed_at

---

### 1.3 Stage 3: Recording Workflow

#### Cashier Ledger Entry
- [ ] **Step 1**: Login as `cashier@test.com`
- [ ] **Step 2**: Navigate to `/admin/cashier-ledger/create`
- [ ] **Step 3**: Fill form:
  - Finance Document: (select executed payment)
  - Entry Date: (today)
  - Entry Type: "payment"
  - Payment Method: "bank_transfer"
  - Bank Account: "Main Account"
  - Amount: (from payment order)
  - Receipt Number: "RCP-001"
  - Transaction Reference: (from payment order)
  - Notes: "記錄付款"
- [ ] **Step 4**: Submit form
- [ ] **Step 5**: Verify:
  - [ ] Entry created
  - [ ] Balance_before calculated from previous entry
  - [ ] Balance_after = balance_before - amount
  - [ ] finance_document updated with cashier_ledger_entry_id

#### Accounting Transaction (Accountant)
- [ ] **Step 1**: Login as `accountant@test.com`
- [ ] **Step 2**: Navigate to `/admin/transactions/create`
- [ ] **Step 3**: Create accounting entry with debit/credit
- [ ] **Step 4**: Link to finance document
- [ ] **Step 5**: Verify transaction recorded

---

### 1.4 Stage 4: Reconciliation Workflow

#### Prepare Bank Reconciliation (Cashier)
- [ ] **Step 1**: Login as `cashier@test.com`
- [ ] **Step 2**: Navigate to `/admin/bank-reconciliations/create`
- [ ] **Step 3**: Fill reconciliation form:
  - Reconciliation Month: "2025-11"
  - Bank Statement Balance: 500,000
  - Bank Statement Date: 2025-11-30
  - Upload bank statement (PDF)
  - System Book Balance: (auto-calculated from ledger)
- [ ] **Step 4**: Add outstanding items:
  - Outstanding checks: [{"amount": 5000, "check_number": "CHK-001"}]
  - Deposits in transit: [{"amount": 10000, "date": "2025-11-29"}]
  - Bank charges: [{"amount": 50, "description": "Service fee"}]
- [ ] **Step 5**: Submit form
- [ ] **Step 6**: Verify:
  - [ ] Reconciliation created
  - [ ] Adjusted balance calculated correctly
  - [ ] Discrepancy detected if amounts don't match
  - [ ] Status based on discrepancy

#### Review Bank Reconciliation (Accountant)
- [ ] **Step 1**: Login as `accountant@test.com`
- [ ] **Step 2**: Navigate to pending reconciliation
- [ ] **Step 3**: Review outstanding items
- [ ] **Step 4**: Click "Review"
- [ ] **Step 5**: Verify reviewed_at timestamp set

#### Approve Bank Reconciliation (Chair)
- [ ] **Step 1**: Login as `chair@test.com`
- [ ] **Step 2**: Navigate to reviewed reconciliation
- [ ] **Step 3**: Click "Approve"
- [ ] **Step 4**: Verify:
  - [ ] Status changed to "completed" or "discrepancy"
  - [ ] Approved_at timestamp set

---

## 2. Automated Tests

### 2.1 Feature Tests

Create file: `tests/Feature/FinancialWorkflowTest.php`

```php
<?php

namespace Tests\Feature;

use Tests\TestCase;
use App\Models\User;
use App\Models\FinanceDocument;
use App\Models\PaymentOrder;
use App\Models\CashierLedgerEntry;
use App\Models\BankReconciliation;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Spatie\Permission\Models\Role;

class FinancialWorkflowTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        $this->seed(FinancialWorkflowPermissionsSeeder::class);
    }

    /** @test */
    public function small_amount_workflow_completes_without_chair()
    {
        // Create users
        $cashier = User::factory()->create();
        $accountant = User::factory()->create();
        $requester = User::factory()->create();

        $cashier->assignRole('finance_cashier');
        $accountant->assignRole('finance_accountant');
        $requester->assignRole('finance_requester');

        // Step 1: Requester submits
        $document = FinanceDocument::create([
            'submitted_by_user_id' => $requester->id,
            'title' => 'Small Expense',
            'amount' => 3000,
            'request_type' => 'expense_reimbursement',
            'status' => 'pending',
            'submitted_at' => now(),
        ]);

        $document->amount_tier = $document->determineAmountTier();
        $document->save();

        $this->assertEquals('small', $document->amount_tier);

        // Step 2: Cashier approves
        $this->actingAs($cashier)
            ->post(route('admin.finance.approve', $document))
            ->assertRedirect();

        $document->refresh();
        $this->assertEquals('approved_cashier', $document->status);

        // Step 3: Accountant approves
        $this->actingAs($accountant)
            ->post(route('admin.finance.approve', $document))
            ->assertRedirect();

        $document->refresh();
        $this->assertEquals('approved_accountant', $document->status);
        $this->assertTrue($document->isApprovalStageComplete());
    }

    /** @test */
    public function medium_amount_requires_chair_approval()
    {
        // Similar test for medium amount...
    }

    /** @test */
    public function accountant_can_create_payment_order()
    {
        // Test payment order creation...
    }

    /** @test */
    public function cashier_can_verify_payment_order()
    {
        // Test payment verification...
    }

    /** @test */
    public function cashier_can_execute_payment()
    {
        // Test payment execution...
    }

    /** @test */
    public function cashier_ledger_calculates_balance_correctly()
    {
        // Test balance calculation...
    }

    /** @test */
    public function bank_reconciliation_detects_discrepancy()
    {
        // Test discrepancy detection...
    }
}
```

### 2.2 Unit Tests

Create file: `tests/Unit/PaymentOrderTest.php`

```php
<?php

namespace Tests\Unit;

use Tests\TestCase;
use App\Models\PaymentOrder;
use Illuminate\Foundation\Testing\RefreshDatabase;

class PaymentOrderTest extends TestCase
{
    use RefreshDatabase;

    /** @test */
    public function generates_unique_payment_order_number()
    {
        $number1 = PaymentOrder::generatePaymentOrderNumber();
        $number2 = PaymentOrder::generatePaymentOrderNumber();

        $this->assertStringStartsWith('PO-', $number1);
        $this->assertStringStartsWith('PO-', $number2);
        $this->assertNotEquals($number1, $number2);
    }

    /** @test */
    public function can_be_verified_when_pending()
    {
        $order = PaymentOrder::factory()->create([
            'status' => 'pending_verification',
            'verification_status' => 'pending',
        ]);

        $this->assertTrue($order->canBeVerifiedByCashier());
    }

    /** @test */
    public function cannot_be_verified_when_already_verified()
    {
        $order = PaymentOrder::factory()->create([
            'status' => 'verified',
            'verification_status' => 'approved',
        ]);

        $this->assertFalse($order->canBeVerifiedByCashier());
    }

    /** @test */
    public function can_be_executed_when_verified_and_approved()
    {
        $order = PaymentOrder::factory()->create([
            'status' => 'verified',
            'verification_status' => 'approved',
            'execution_status' => 'pending',
        ]);

        $this->assertTrue($order->canBeExecuted());
    }
}
```

### 2.3 Integration Tests

```php
/** @test */
public function complete_workflow_from_document_to_reconciliation()
{
    // 1. Create and approve document
    // 2. Create payment order
    // 3. Verify payment order
    // 4. Execute payment
    // 5. Record in cashier ledger
    // 6. Create accounting transaction
    // 7. Perform bank reconciliation
    // Assert all steps completed successfully
}
```

---

## 3. Permission Tests

### Test Permission Enforcement
```php
/** @test */
public function non_cashier_cannot_verify_payment()
{
    $accountant = User::factory()->create();
    $accountant->assignRole('finance_accountant');

    $order = PaymentOrder::factory()->create([
        'status' => 'pending_verification',
    ]);

    $this->actingAs($accountant)
        ->post(route('admin.payment-orders.verify', $order))
        ->assertForbidden();
}

/** @test */
public function non_accountant_cannot_create_payment_order()
{
    $cashier = User::factory()->create();
    $cashier->assignRole('finance_cashier');

    $document = FinanceDocument::factory()->create([
        'status' => 'approved_accountant',
    ]);

    $this->actingAs($cashier)
        ->post(route('admin.payment-orders.store', $document), [
            'payee_name' => 'Test',
            'payment_amount' => 1000,
            'payment_method' => 'cash',
        ])
        ->assertForbidden();
}
```

---

## 4. Edge Cases and Error Handling

### Test Cases
- [ ] Cannot approve already approved document
- [ ] Cannot verify already verified payment order
- [ ] Cannot execute payment without verification
- [ ] Cannot create payment order for unapproved document
- [ ] Balance calculation with negative balance
- [ ] Bank reconciliation with exact match (no discrepancy)
- [ ] Bank reconciliation with large discrepancy
- [ ] File upload size limits
- [ ] Invalid file types
- [ ] Missing required fields
- [ ] Concurrent access to same document
- [ ] Cancelling executed payment order (should fail)

---

## 5. Performance Tests

### Load Testing Checklist
- [ ] Create 1,000 finance documents
- [ ] Create 1,000 payment orders
- [ ] Create 10,000 ledger entries
- [ ] Test pagination performance
- [ ] Test search/filter performance
- [ ] Test balance calculation with large datasets
- [ ] Test bank reconciliation with many outstanding items

---

## 6. Security Tests

### Security Checklist
- [ ] SQL injection in search filters
- [ ] XSS in notes fields
- [ ] CSRF token validation
- [ ] File upload security (malicious files)
- [ ] Path traversal in file downloads
- [ ] Authorization bypass attempts
- [ ] Rate limiting on sensitive operations

---

## 7. User Acceptance Testing (UAT)

### UAT Checklist
- [ ] UI is intuitive and easy to navigate
- [ ] Error messages are clear and helpful
- [ ] Success messages provide adequate feedback
- [ ] Forms validate input properly
- [ ] Tables display data correctly
- [ ] Pagination works smoothly
- [ ] Filters work as expected
- [ ] File uploads work reliably
- [ ] Downloads work correctly
- [ ] Email notifications are received
- [ ] Mobile responsiveness (if applicable)

---

## 8. Regression Testing

### After Each Change
- [ ] Run all automated tests
- [ ] Test complete workflow manually
- [ ] Verify no existing functionality broken
- [ ] Check database integrity
- [ ] Verify audit logs still working

---

## Test Execution Log

| Date | Tester | Test Section | Status | Notes |
|------|--------|--------------|--------|-------|
| | | | | |

---

## Bugs/Issues Tracker

| ID | Priority | Description | Steps to Reproduce | Status | Fixed By |
|----|----------|-------------|-------------------|--------|----------|
| | | | | | |

---

## Sign-off

- [ ] All manual tests passed
- [ ] All automated tests passing
- [ ] Performance acceptable
- [ ] Security verified
- [ ] UAT completed
- [ ] Documentation complete

**Tested by**: ________________
**Date**: ________________
**Approved by**: ________________
**Date**: ________________