✅ Add test for idempotency header

Author: SimonJnsson

tests/Unit/DriverTest.php

@@ -4,6 +4,7 @@
 use Illuminate\Http\Client\RequestException;
 use Illuminate\Support\Facades\Http;
 use Morningtrain\Economic\Resources\Customer;
+use Morningtrain\LaravelEconomic\Drivers\HttpEconomicDriver;
 
 it('adds headers from env', function () {
     Http::fake([
@@ -63,3 +64,45 @@
 
     expect(Http::economic()->getOptions()['timeout'])->toBe(45);
 });
+
+it('adds idempotency header key on POST if set', function () {
+    Http::fake([
+        '*' => Http::response([]),
+    ]);
+
+    $driver = new HttpEconomicDriver();
+
+    $driver->post('https://restapi.e-conomic.com/invoice/1', [], 'idempotency-key');
+
+    Http::assertSent(function (Request $request) {
+        return $request->hasHeader('Idempotency-Key', 'idempotency-key');
+    });
+});
+
+it('adds idempotency header key on PUT if set', function () {
+    Http::fake([
+        '*' => Http::response([]),
+    ]);
+
+    $driver = new HttpEconomicDriver();
+
+    $driver->put('https://restapi.e-conomic.com/invoice/1', [], 'idempotency-key');
+
+    Http::assertSent(function (Request $request) {
+        return $request->hasHeader('Idempotency-Key', 'idempotency-key');
+    });
+});
+
+it('does not add idempotency header key on PUT if set to Null', function () {
+    Http::fake([
+        '*' => Http::response([]),
+    ]);
+
+    $driver = new HttpEconomicDriver();
+
+    $driver->put('https://restapi.e-conomic.com/invoice/1', [], null);
+
+    Http::assertSent(function (Request $request) {
+        return $request->hasHeader('Idempotency-Key') === false;
+    });
+});