add update companies specs

Author: Skaelv

README.md

@@ -71,10 +71,10 @@ $client->users->create([
   ]
 ]);
 
-// Find a single user by email 
+// Find a single user by email
 $client->users->getUsers(["email" => "[email protected]"]);
 
-// List all users 
+// List all users
 $client->users->getUsers([]);
 ```
 
@@ -152,6 +152,11 @@ $client->companies->create([
   "name" => "foocorp", "id" => "3"
 ]);
 
+// Update a company (Note: This method is an alias to the create method. In practice you can use create to update companies if you wish)
+$client->companies->update([
+  "name" => "foocorp", "id" => "3"
+]);
+
 // List Companies
 $client->companies->getCompanies([]);
 ```

test/IntercomCompaniesTest.php

@@ -9,7 +9,7 @@
 use GuzzleHttp\Middleware;
 
 class IntercomCompaniesTest extends PHPUnit_Framework_TestCase {
-  public function testUserCreate()
+  public function testCompanyCreate()
   {
     $stub = $this->getMockBuilder('Intercom\IntercomClient')->disableOriginalConstructor()->getMock();
     $stub->method('post')->willReturn('foo');
@@ -18,7 +18,16 @@ public function testUserCreate()
     $this->assertEquals('foo', $companies->create([]));
   }
 
-  public function testUserGet()
+  public function testCompanyUpdate()
+  {
+    $stub = $this->getMockBuilder('Intercom\IntercomClient')->disableOriginalConstructor()->getMock();
+    $stub->method('post')->willReturn('foo');
+
+    $companies = new IntercomCompanies($stub);
+    $this->assertEquals('foo', $companies->update([]));
+  }
+
+  public function testCompanyGet()
   {
     $stub = $this->getMockBuilder('Intercom\IntercomClient')->disableOriginalConstructor()->getMock();
     $stub->method('get')->willReturn('foo');