Cover all expected usages of VarDriver

Author: nclavaud

src/Drivers/ObjectDriver.php

@@ -24,9 +24,13 @@ public function serialize($data): string
 
         $serializer = new Serializer($normalizers, $encoders);
 
-        return $serializer->serialize($data, 'json', [
-            'json_encode_options' => JSON_PRETTY_PRINT,
-        ]);
+        return $serializer->serialize(
+            $data,
+            'json',
+            [
+                'json_encode_options' => JSON_PRETTY_PRINT,
+            ]
+        );
     }
 
     public function extension(): string

tests/Unit/Drivers/ObjectDriverTest.php

@@ -8,7 +8,76 @@
 class ObjectDriverTest extends TestCase
 {
     /** @test */
-    public function it_can_serialize_an_object()
+    public function it_can_serialize_a_string()
+    {
+        $driver = new ObjectDriver();
+
+        $this->assertEquals('"foo"', $driver->serialize('foo'));
+    }
+
+    /** @test */
+    public function it_can_serialize_an_integer()
+    {
+        $driver = new ObjectDriver();
+
+        $this->assertEquals('1', $driver->serialize(1));
+    }
+
+    /** @test */
+    public function it_can_serialize_a_float()
+    {
+        $driver = new ObjectDriver();
+
+        $this->assertEquals('1.5', $driver->serialize(1.5));
+    }
+
+    /** @test */
+    public function it_can_serialize_an_associative_array()
+    {
+        $driver = new ObjectDriver();
+
+        $expected = <<<'JSON'
+{
+    "foo": {
+        "bar": "baz"
+    }
+}
+JSON;
+
+        $this->assertEquals($expected, $driver->serialize(['foo' => ['bar' => 'baz']]));
+    }
+
+    /** @test */
+    public function it_can_serialize_an_indexed_array_without_keys()
+    {
+        $driver = new ObjectDriver();
+
+        $expected = <<<'JSON'
+[
+    "foo",
+    "bar"
+]
+JSON;
+
+        $this->assertEquals($expected, $driver->serialize(['foo', 'bar']));
+    }
+
+    /** @test */
+    public function it_can_serialize_a_simple_object()
+    {
+        $driver = new ObjectDriver();
+
+        $expected = <<<'JSON'
+{
+    "foo": "bar"
+}
+JSON;
+
+        $this->assertEquals($expected, $driver->serialize((object) ['foo' => 'bar']));
+    }
+
+    /** @test */
+    public function it_can_serialize_a_class_instance()
     {
         $driver = new ObjectDriver();