Test push

Adding unit test for the network site connection push method, #2.

tests/php/NetworkSiteConnectionsTest.php

@@ -0,0 +1,50 @@
+<?php
+
+namespace Syndicate\InternalConnections;
+
+class NetworkSiteConnectionsTest extends \TestCase {
+
+    /**
+     * Push returns an post ID on success instance of WP Error on failure.
+     *
+     * @since  0.8
+     */
+    public function test_push(){
+
+        $site_obj = \Mockery::mock( '\WP_Site', [
+            'args' => 1,
+            'return' => ''
+        ] );
+
+        $connection_obj = new NetworkSiteConnection( $site_obj );
+
+        \WP_Mock::userFunction( 'get_post', [
+            'return' => (object) [
+                'post_content' => '',
+                'post_excerpt' => '',
+                'post_type' => '',
+            ]
+        ] );
+
+        \WP_Mock::userFunction( 'get_current_blog_id' );
+        \WP_Mock::userFunction( 'get_current_user_id' );
+        \WP_Mock::userFunction( 'switch_to_blog' );
+
+        $connection_obj->site->blog_id = 2;
+
+        \WP_Mock::userFunction( 'wp_insert_post', [
+            'return' => 123
+        ] );
+
+        \WP_Mock::userFunction( 'update_post_meta' );
+        \WP_Mock::userFunction( 'get_post_meta', [
+            'return' => []
+        ] );
+
+        \WP_Mock::userFunction( 'restore_current_blog' );
+
+        $this->assertTrue( is_int( $connection_obj->push( 1 ) ) );
+
+    }
+
+}