remove incorrect MissingArgumentException, add docs, update tests

Author: bobeagan

doc/README.md

@@ -49,6 +49,7 @@ v3 APIs:
   * [Checks](repo/checks.md)
   * [Contents](repo/contents.md)
   * [Deployments](repo/deployments.md)
+  * [Labels](repo/labels.md)
   * [Protection](repo/protection.md)
   * [Releases](repo/releases.md)
     * [Assets](repo/assets.md)

doc/repo/labels.md

@@ -0,0 +1,48 @@
+## Repo / Labels API
+[Back to the "Repos API"](../repos.md) | [Back to the navigation](../README.md)
+
+### List all labels for this repository
+
+```php
+$labels = $client->api('repo')->labels()->all('twbs', 'bootstrap');
+```
+
+### Get a single label
+
+```php
+$label = $client->api('repo')->labels()->show('twbs', 'bootstrap', 'feature');
+```
+
+### Create a label
+
+> Requires [authentication](../security.md).
+
+```php
+$params = [
+  'name' => 'bug',
+  'color' => 'f29513',
+  'description' => 'Something isn\'t working',
+];
+$label = $client->api('repo')->labels()->create('twbs', 'bootstrap', $params);
+```
+
+### Update a label
+
+> Requires [authentication](../security.md).
+
+```php
+$params = [
+  'new_name' => 'bug :bug:',
+  'color' => 'b01f26',
+  'description' => 'Small bug fix required',
+];
+$label = $client->api('repo')->labels()->update('twbs', 'bootstrap', 'bug', $params);
+```
+
+### Delete a label
+
+> Requires [authentication](../security.md).
+
+```php
+$label = $client->api('repo')->labels()->remove('twbs', 'bootstrap', 'bug');
+```

lib/Github/Api/Repository/Labels.php

@@ -33,10 +33,6 @@ public function create($username, $repository, array $params)
 
     public function update($username, $repository, $label, array $params)
     {
-        if (!isset($params['name'], $params['color'])) {
-            throw new MissingArgumentException(['name', 'color']);
-        }
-
         return $this->patch('/repos/'.rawurlencode($username).'/'.rawurlencode($repository).'/labels/'.rawurlencode($label), $params);
     }
 

test/Github/Tests/Api/Repository/LabelsTest.php

@@ -102,43 +102,13 @@ public function shouldCreateLabel()
         $this->assertEquals($expectedValue, $api->create('KnpLabs', 'php-github-api', $data));
     }
 
-    /**
-     * @test
-     */
-    public function shouldNotUpdateLabelWithoutName()
-    {
-        $this->expectException(MissingArgumentException::class);
-        $data = ['color' => 'red'];
-
-        $api = $this->getApiMock();
-        $api->expects($this->never())
-            ->method('patch');
-
-        $api->update('KnpLabs', 'php-github-api', 'labelName', $data);
-    }
-
-    /**
-     * @test
-     */
-    public function shouldNotUpdateLabelWithoutColor()
-    {
-        $this->expectException(MissingArgumentException::class);
-        $data = ['name' => 'test'];
-
-        $api = $this->getApiMock();
-        $api->expects($this->never())
-            ->method('patch');
-
-        $api->update('KnpLabs', 'php-github-api', 'labelName', $data);
-    }
-
     /**
      * @test
      */
     public function shouldUpdateLabel()
     {
-        $expectedValue = ['label' => 'somename'];
-        $data = ['name' => 'test', 'color' => 'red'];
+        $expectedValue = ['name' => 'test'];
+        $data = ['new_name' => 'test', 'color' => 'red'];
 
         $api = $this->getApiMock();
         $api->expects($this->once())