Add Premium installation/activation UI [PREMIUM-9]

tests/unit/Config/InstallerTest.php

@@ -0,0 +1,70 @@
+<?php
+
+use Codeception\Util\Stub;
+use MailPoet\Config\Env;
+use MailPoet\Config\Installer;
+
+class InstallerTest extends MailPoetTest {
+  function _before() {
+    $this->slug = 'some-plugin';
+
+    $this->installer = new Installer(
+      $this->slug
+    );
+  }
+
+  function testItInitializes() {
+    $installer = Stub::make(
+      $this->installer,
+      array(
+        'getPluginInfo' => Stub::once()
+      )
+    );
+    $installer->init();
+    apply_filters('plugins_api', null, null, null);
+  }
+
+  function testItGetsPluginInfo() {
+    $args = new \StdClass;
+    $args->slug = $this->slug;
+    $result = $this->installer->getPluginInfo(false, 'plugin_information', $args);
+    expect($result->slug)->equals($this->slug);
+    expect($result->new_version)->notEmpty();
+    expect($result->download_link)->notEmpty();
+    expect($result->package)->notEmpty();
+  }
+
+  function testItIgnoresNonMatchingRequestsWhenGettingPluginInfo() {
+    $data = new \StdClass;
+    $data->some_property = '123';
+    $result = $this->installer->getPluginInfo($data, 'some_action', null);
+    expect($result)->equals($data);
+    $args = new \StdClass;
+    $args->slug = 'different-slug';
+    $result = $this->installer->getPluginInfo($data, 'plugin_information', $args);
+    expect($result)->equals($data);
+  }
+
+  function testItGetsPremiumStatus() {
+    $status = Installer::getPremiumStatus();
+    expect(isset($status['premium_plugin_active']))->true();
+    expect(isset($status['premium_plugin_installed']))->true();
+    expect(isset($status['premium_install_url']))->true();
+    expect(isset($status['premium_activate_url']))->true();
+  }
+
+  function testItChecksIfAPluginIsInstalled() {
+    expect(Installer::isPluginInstalled(Env::$plugin_name))->true();
+    expect(Installer::isPluginInstalled('some-non-existent-plugin-123'))->false();
+  }
+
+  function testItGetsPluginInstallUrl() {
+    expect(Installer::getPluginInstallUrl(Env::$plugin_name))
+      ->startsWith(home_url() . '/wp-admin/update.php?action=install-plugin&plugin=mailpoet&_wpnonce=');
+  }
+
+  function testItGetsPluginActivateUrl() {
+    expect(Installer::getPluginActivateUrl(Env::$plugin_name))
+      ->startsWith(home_url() . '/wp-admin/plugins.php?action=activate&plugin=mailpoet/mailpoet.php&_wpnonce=');
+  }
+}