Test jobs responsible for fetching conversion rates

tests/Unit/Jobs/FetchConversionRateTest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Tests\Unit\Jobs;
+
+use App\Jobs\FetchConversionRate;
+use App\Models\ConversionRate;
+use Tests\TestCase;
+
+class FetchConversionRateTest extends TestCase
+{
+    public function testWhetherConversionRatesGetFetched(): void
+    {
+        $this->assertDatabaseEmpty(ConversionRate::class);
+
+        app()->call([new FetchConversionRate(1), 'handle']);
+
+        $this->assertDatabaseHas(
+            ConversionRate::class,
+            [
+                'base_currency_id' => 1,
+                'target_currency_id' => 2,
+            ],
+        );
+
+        $this->assertDatabaseHas(
+            ConversionRate::class,
+            [
+                'base_currency_id' => 1,
+                'target_currency_id' => 3,
+            ],
+        );
+
+        // etc.
+    }
+}

tests/Unit/Jobs/FetchConversionRatesTest.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Tests\Unit\Jobs;
+
+use App\Jobs\FetchConversionRate;
+use App\Jobs\FetchConversionRates;
+use Illuminate\Support\Facades\Queue;
+use Tests\TestCase;
+
+class FetchConversionRatesTest extends TestCase
+{
+    public function testWhetherIndividualJobsGetDispatched(): void
+    {
+        Queue::fake();
+
+        Queue::assertNothingPushed();
+
+        app()->call([new FetchConversionRates(), 'handle']);
+
+        Queue::assertPushed(FetchConversionRate::class);
+    }
+}