diff --git a/tests/Feature/Http/Controllers/JournalEntryControllerTest.php b/tests/Feature/Http/Controllers/JournalEntryControllerTest.php
index 3d39109..e884ef7 100644
--- a/tests/Feature/Http/Controllers/JournalEntryControllerTest.php
+++ b/tests/Feature/Http/Controllers/JournalEntryControllerTest.php
@@ -3,14 +3,16 @@
 namespace Tests\Feature\Http\Controllers;
 
 use App\Http\Controllers\JournalEntryController;
+use App\Models\IngredientAmount;
 use App\Models\JournalEntry;
 use Illuminate\Database\Eloquent\Factories\Factory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Foundation\Testing\WithFaker;
 
 class JournalEntryControllerTest extends HttpControllerTestCase
 {
-    use RefreshDatabase;
+    use RefreshDatabase, WithFaker;
 
     /**
      * @inheritdoc
@@ -47,7 +49,8 @@ class JournalEntryControllerTest extends HttpControllerTestCase
     /**
      * @doesNotPerformAssertions
      */
-    public function testCanViewInstance(): void {
+    public function testCanViewInstance(): void
+    {
         $this->setName('can *not* view instance');
         // Journal entries are not independently viewable.
     }
@@ -55,7 +58,8 @@ class JournalEntryControllerTest extends HttpControllerTestCase
     /**
      * @doesNotPerformAssertions
      */
-    public function testCanEditInstance(): void {
+    public function testCanEditInstance(): void
+    {
         $this->setName('can *not* edit instance');
         // Journal entries are not editable.
     }
@@ -65,10 +69,45 @@ class JournalEntryControllerTest extends HttpControllerTestCase
         $create_url = action([$this->class(), 'createFromNutrients']);
         $response = $this->get($create_url);
         $response->assertOk();
+
         $instance = $this->factory()->make();
         $store_url = action([$this->class(), 'storeFromNutrients']);
         $response = $this->post($store_url, $instance->toArray());
         $response->assertSessionHasNoErrors();
     }
 
+    public function testCanAddInstanceFromIngredients(): void
+    {
+        $create_url = action([$this->class(), 'create']);
+        $response = $this->get($create_url);
+        $response->assertOk();
+
+        // Create ingredients based on ingredient amounts.
+        $ingredients = [
+            'date' => [], 'meal' => [], 'amount' => [], 'unit' => [],
+            'id' => [], 'type' => [],
+        ];
+        /** @var \App\Models\IngredientAmount[] $ingredient_amounts */
+        $ingredient_amounts = IngredientAmount::factory()
+            ->count(10)
+            ->make(['parent_id' => null, 'parent_type' => null]);
+        foreach ($ingredient_amounts as $ingredient_amount) {
+            $ingredients['date'][] = $this->faker->dateTimeThisMonth;
+            $ingredients['meal'][] = $this->faker->randomElement(JournalEntry::meals()->pluck('value')->toArray());
+            $ingredients['amount'][] = $ingredient_amount->amount;
+            $ingredients['unit'][] = $ingredient_amount->unit;
+            $ingredients['id'][] = $ingredient_amount->ingredient->id;
+            $ingredients['type'][] = $ingredient_amount->ingredient->type;
+        }
+        $data = ['ingredients' => $ingredients, 'group_entries' => true];
+        $store_url = action([$this->class(), 'store']);
+        $response = $this->post($store_url, $data);
+        $response->assertSessionHasNoErrors();
+
+        $data['group_entries'] = false;
+        $store_url = action([$this->class(), 'store']);
+        $response = $this->post($store_url, $data);
+        $response->assertSessionHasNoErrors();
+    }
+
 }