test get bid link

src/Bid/Bid.php

@@ -29,4 +29,13 @@ class Bid
     {
         return $this->carrierId;
     }
+
+    public function getBidLink(): ?string
+    {
+        $id = $this->id;
+        if ($id === null) {
+            return null;
+        }
+        return "https://freightquotes.com/bid/$id";
+    }
 }

tests/Unit/Bid/BidTest.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Tests\Unit\Bid;
+
+use FreightQuote\Bid\Bid;
+use PHPUnit\Framework\TestCase;
+
+class BidTest extends TestCase
+{
+    public function test_bid_link_generated(): void
+    {
+        $bidId = '124e56abf82';
+        $bid = new Bid($bidId, 0, 0);
+        $this->assertEquals(
+            "https://freightquotes.com/bid/$bidId",
+            $bid->getBidLink()
+        );
+    }
+}