add update method for contact client, add missing tests for contact cleint

Author: Sysix

README.md

@@ -59,6 +59,8 @@ $response = $client->getAll();
 // other methods
 $response = $client->get($entityId);
 $response = $client->create($data);
+$response = $client->update($entityId, $data);
+
 ```
 
 ### Country Endpoint

src/Contact/Client.php

@@ -22,4 +22,20 @@ public function generateUrl(int $page): string
             '&direction=' . $this->sortDirection .
             '&property=' .$this->sortProperty;
     }
+
+    /**
+    * @param string $id
+    * @param array $data
+    * @return ResponseInterface
+    * @throws CacheException
+    * @throws LexOfficeApiException
+    */
+    public function update(string $id, array $data)
+    {
+        $api = $this->api->newRequest('PUT', $this->resource . '/' . $id);
+
+        $api->request = $api->request->withBody($this->createStream($data));
+
+        return $api->getResponse();
+    }
 }

tests/Contact/ClientTest.php

@@ -22,4 +22,44 @@ public function testGenerateUrl()
         );
     }
 
+    public function testCreate()
+    {
+        $stub = $this->createClientMockObject(
+            Client::class,
+            new Response(200, [], 'body'),
+            ['create']
+        );
+
+        $response = $stub->create([
+            'version' => 0
+        ]);
+
+        $this->assertEquals('body', $response->getBody()->__toString());
+    }
+
+    public function testGet()
+    {
+        $stub = $this->createClientMockObject(
+            Client::class,
+            new Response(200, [], 'body'),
+            ['get']
+        );
+
+        $response = $stub->get('resource-id');
+
+        $this->assertEquals('body', $response->getBody()->__toString());
+    }
+
+    public function testUpdate()
+    {
+        $stub = $this->createClientMockObject(
+            Client::class,
+            new Response(200, [], 'body'),
+            ['update']
+        );
+
+        $response = $stub->update('resource-id', []);
+
+        $this->assertEquals('body', $response->getBody()->__toString());
+    }
 }