test: add postcode path assertion for meta lat/lng

tests/Feature/Api/StationControllerTest.php

@@ -171,3 +171,24 @@ it('includes resolved lat and lng in meta', function () {
         ->assertJsonPath('meta.lat', 52.555064)
         ->assertJsonPath('meta.lng', -0.256119);
 });
+
+it('includes resolved lat and lng in meta when postcode is provided', function () {
+    $station = Station::factory()->create(['lat' => 51.5010, 'lng' => -0.1415]);
+    StationPriceCurrent::factory()->create([
+        'station_id' => $station->node_id,
+        'fuel_type' => FuelType::E10,
+        'price_pence' => 14200,
+    ]);
+
+    Http::fake([
+        'api.postcodes.io/postcodes/SW1A1AA' => Http::response([
+            'status' => 200,
+            'result' => ['postcode' => 'SW1A 1AA', 'latitude' => 51.5010, 'longitude' => -0.1415],
+        ]),
+    ]);
+
+    $this->getJson('/api/stations?postcode=SW1A+1AA&fuel_type=e10&radius=1')
+        ->assertOk()
+        ->assertJsonPath('meta.lat', 51.5010)
+        ->assertJsonPath('meta.lng', -0.1415);
+});