adds feature to backfill daily change

2024-09-11 22:00:37 -05:00
parent a13d2d4323
commit c0c83ebdbd
4 changed files with 243 additions and 5 deletions
@@ -0,0 +1,119 @@
+<?php
+
+namespace Tests;
+
+use Tests\TestCase;
+use App\Models\User;
+use App\Models\Holding;
+use App\Models\Portfolio;
+use App\Models\DailyChange;
+use App\Models\Transaction;
+use Illuminate\Support\Facades\Artisan;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class SyncDailyChangeTest extends TestCase
+{
+    use RefreshDatabase;
+
+    /**
+     */
+    public function test_can_sync_daily_change_history(): void
+    {
+        $this->actingAs($user = User::factory()->create());
+
+        $portfolio = Portfolio::factory()->create();
+
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('ACME')->create();
+        Transaction::factory()->sell()->lastMonth()->portfolio($portfolio->id)->symbol('ACME')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('AAPL')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('GOOG')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('FOO')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('BAR')->create();
+
+        $portfolio->syncDailyChanges();
+
+        $count_of_daily_changes = $portfolio->daily_change()->count('date');
+        $days_between_now_and_first_trans = (int) now()->diffInDays($portfolio->transactions()->min('date'), true) + 1;
+
+        $this->assertEquals($count_of_daily_changes, $days_between_now_and_first_trans);
+    }
+
+    /**
+     */
+    public function test_sales_are_captured_as_realized_gains(): void
+    {
+        $this->actingAs($user = User::factory()->create());
+
+        $portfolio = Portfolio::factory()->create();
+
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('ACME')->create();
+        $sale_transaction = Transaction::factory()->sell()->lastMonth()->portfolio($portfolio->id)->symbol('ACME')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('AAPL')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('GOOG')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('FOO')->create();
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('BAR')->create();
+
+        $portfolio->syncDailyChanges();
+
+        $daily_change = DailyChange::query()
+            ->portfolio($portfolio->id)
+            ->whereDate('date', $sale_transaction->date)
+            ->first();
+
+        $realized_gain = ($sale_transaction->sale_price - $sale_transaction->cost_basis) * $sale_transaction->quantity;
+
+        $this->assertEqualsWithDelta($daily_change->realized_gains, $realized_gain, 0.01);
+
+        $day_before = DailyChange::query()
+            ->portfolio($portfolio->id)
+            ->whereDate('date', $sale_transaction->date->subDays(1))
+            ->first();
+
+        $this->assertEquals($day_before->realized_gains, 0);
+
+        $day_after = DailyChange::query()
+            ->portfolio($portfolio->id)
+            ->whereDate('date', $sale_transaction->date->addDays(1))
+            ->first();
+
+        $this->assertEqualsWithDelta($day_after->realized_gains, $realized_gain, 0.01);
+    }
+
+    public function test_dividends_captured_in_daily_change_sync(): void
+    {
+        $this->actingAs($user = User::factory()->create());
+
+        $portfolio = Portfolio::factory()->create();
+
+        Transaction::factory(5)->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('ACME')->create();
+
+        Artisan::call('refresh:dividend-data');
+
+        $portfolio->syncDailyChanges();
+
+        $holding = Holding::query()->portfolio($portfolio->id)->symbol('ACME')->first();
+        $dividends = $holding->dividends()->get()->sortBy('date');
+
+        $first_dividend_change = DailyChange::query()
+            ->portfolio($portfolio->id)
+            ->whereDate('date', $dividends->first()->date)
+            ->first();
+
+        $owned = $dividends->first()->purchased - $dividends->first()->sold;
+
+        $this->assertEqualsWithDelta($dividends->first()->dividend_amount * $owned, $first_dividend_change->total_dividends_earned, 0.01);
+
+        $last_dividend_change = DailyChange::query()
+            ->portfolio($portfolio->id)
+            ->whereDate('date', $dividends->last()->date)
+            ->first();
+
+        $total_dividends = $dividends->reduce(function (?float $carry, $dividend) {
+            return $carry + ($dividend['dividend_amount'] * ($dividend['purchased'] - $dividend['sold']));
+        });
+
+        $owned = $dividends->last()->purchased - $dividends->last()->sold;
+
+        $this->assertEqualsWithDelta($total_dividends, $last_dividend_change->total_dividends_earned, 0.01);
+    }
+}