Split and organize multisite unit tests

* Move `ms.php` to `multisite.php`
* Create `multisite.php` under directories `option/` and `user/` to better match existing structure.
* Create a `multisite/` directory containing `bootstrap.php`, `site.php`, and `network.php` for very multisite specific testing.
* Add unit test groups ms-site, ms-user, ms-option, ms-network, and ms-bootstrap.

Fixes #29896


git-svn-id: https://develop.svn.wordpress.org/trunk@29916 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/multisite.php

@@ -0,0 +1,72 @@
+<?php
+
+if ( is_multisite() ) :
+
+/**
+ * A set of unit tests for WordPress Multisite
+ *
+ * @group multisite
+ */
+class Tests_Multisite extends WP_UnitTestCase {
+	protected $suppress = false;
+
+	function setUp() {
+		global $wpdb;
+		parent::setUp();
+		$this->suppress = $wpdb->suppress_errors();
+
+		$_SERVER['REMOTE_ADDR'] = '';
+	}
+
+	function tearDown() {
+		global $wpdb;
+		parent::tearDown();
+		$wpdb->suppress_errors( $this->suppress );
+	}
+
+	function test_wpmu_log_new_registrations() {
+		global $wpdb;
+
+		$user = new WP_User( 1 );
+		$ip = preg_replace( '/[^0-9., ]/', '',$_SERVER['REMOTE_ADDR'] );
+
+		wpmu_log_new_registrations(1,1);
+
+		// currently there is no wrapper function for the registration_log
+		$reg_blog = $wpdb->get_col( "SELECT email FROM {$wpdb->registration_log} WHERE {$wpdb->registration_log}.blog_id = 1 AND IP LIKE '" . $ip . "'" );
+		$this->assertEquals( $user->user_email, $reg_blog[ count( $reg_blog )-1 ] );
+	}
+
+	/**
+	 * @ticket 21570
+	 */
+	function test_aggressiveness_of_is_email_address_unsafe() {
+		update_site_option( 'banned_email_domains', array( 'bar.com', 'foo.co' ) );
+
+		foreach ( array( 'test@bar.com', 'test@foo.bar.com', 'test@foo.co', 'test@subdomain.foo.co' ) as $email_address ) {
+			$this->assertTrue( is_email_address_unsafe( $email_address ), "$email_address should be UNSAFE" );
+		}
+
+		foreach ( array( 'test@foobar.com', 'test@foo-bar.com', 'test@foo.com', 'test@subdomain.foo.com' ) as $email_address ) {
+			$this->assertFalse( is_email_address_unsafe( $email_address ), "$email_address should be SAFE" );
+		}
+	}
+
+	/**
+	 * @ticket 25046
+	 */
+	function test_case_sensitivity_of_is_email_address_unsafe() {
+		update_site_option( 'banned_email_domains', array( 'baR.com', 'Foo.co', 'barfoo.COM', 'BAZ.com' ) );
+
+		foreach ( array( 'test@Bar.com', 'tEst@bar.com', 'test@barFoo.com', 'tEst@foo.bar.com', 'test@baz.Com' ) as $email_address ) {
+			$this->assertTrue( is_email_address_unsafe( $email_address ), "$email_address should be UNSAFE" );
+		}
+
+		foreach ( array( 'test@Foobar.com', 'test@Foo-bar.com', 'tEst@foobar.com', 'test@Subdomain.Foo.com', 'test@fooBAz.com' ) as $email_address ) {
+			$this->assertFalse( is_email_address_unsafe( $email_address ), "$email_address should be SAFE" );
+		}
+
+	}
+}
+
+endif;