MAGETWO-87928: Implement infrastructure for safe-rollback feature

--create dummy module

Author: Sergii Kovalenko

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule4/etc/db_schema.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<schema xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:noNamespaceSchemaLocation="urn:magento:setup:Model/Declaration/Schema/etc/schema.xsd">
+    <table name="test_table" resource="default" comment="Test Table">
+        <column xsi:type="int" name="page_id"  />
+        <column xsi:type="varchar" name="email" />
+        <column xsi:type="varchar" name="title" />
+        <constraint xsi:type="primary" name="PRIMARY">
+            <column name="page_id" />
+            <column name="email" />
+        </constraint>
+    </table>
+</schema>

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule4/etc/db_schema_whitelist.json

@@ -0,0 +1,9 @@
+{
+  "test_table": {
+    "column": {
+      "page_id": true,
+      "email": true,
+      "title": true
+    }
+  }
+}

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule4/etc/module.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!--
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+-->
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
+    <module name="Magento_TestSetupDeclarationModule4" />
+</config>

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule4/fixture/safe_data_provider.php

@@ -0,0 +1,27 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+return [
+    [
+        'page_id' => 1,
+        'email' => '[email protected]',
+        'title' => 'Title1'
+    ],
+    [
+        'page_id' => 2,
+        'email' => '[email protected]',
+        'title' => 'Title2'
+    ],
+    [
+        'page_id' => 3,
+        'email' => '[email protected]',
+        'title' => 'Title3'
+    ],
+    [
+        'page_id' => 4,
+        'email' => '[email protected]',
+        'title' => 'Title4'
+    ]
+];

dev/tests/setup-integration/_files/Magento/TestSetupDeclarationModule4/registration.php

@@ -0,0 +1,12 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+use Magento\Framework\Component\ComponentRegistrar;
+
+$registrar = new ComponentRegistrar();
+if ($registrar->getPath(ComponentRegistrar::MODULE, 'Magento_TestSetupDeclarationModule1') === null) {
+    ComponentRegistrar::register(ComponentRegistrar::MODULE, 'Magento_TestSetupDeclarationModule1', __DIR__);
+}

dev/tests/setup-integration/testsuite/Magento/Setup/SafeInstallerTest.php

@@ -0,0 +1,76 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+namespace Magento\Setup;
+
+use Magento\Framework\App\ResourceConnection;
+use Magento\Setup\Model\Declaration\Schema\Diff\SchemaDiff;
+use Magento\Setup\Model\Declaration\Schema\SchemaConfigInterface;
+use Magento\Setup\Model\Declaration\Schema\Sharding;
+use Magento\TestFramework\Deploy\CliCommand;
+use Magento\TestFramework\Deploy\DescribeTable;
+use Magento\TestFramework\Deploy\TestModuleManager;
+use Magento\TestFramework\Helper\Bootstrap;
+use Magento\TestFramework\TestCase\SetupTestCase;
+
+/**
+ * The purpose of this test is verifying safe declarative installation works.
+ */
+class SafeInstallerTest extends SetupTestCase
+{
+    /**
+     * @var  TestModuleManager
+     */
+    private $moduleManager;
+
+    /**
+     * @var CliCommand
+     */
+    private $cliCommad;
+
+    /**
+     * @var SchemaDiff
+     */
+    private $schemaDiff;
+
+    /**
+     * @var SchemaConfigInterface
+     */
+    private $schemaConfig;
+
+    /**
+     * @var ResourceConnection
+     */
+    private $resourceConnection;
+
+    /**
+     * @var DescribeTable
+     */
+    private $describeTable;
+
+    public function setUp()
+    {
+        $objectManager = Bootstrap::getObjectManager();
+        $this->moduleManager = $objectManager->get(TestModuleManager::class);
+        $this->cliCommad = $objectManager->get(CliCommand::class);
+        $this->describeTable = $objectManager->get(DescribeTable::class);
+        $this->schemaDiff = $objectManager->get(SchemaDiff::class);
+        $this->schemaConfig = $objectManager->get(SchemaConfigInterface::class);
+        $this->resourceConnection = $objectManager->get(ResourceConnection::class);
+    }
+
+    /**
+     * @moduleName Magento_TestSetupDeclarationModule1
+     * @dataProviderFromFile Magento/TestSetupDeclarationModule1/fixture/declarative_installer/installation.php
+     */
+    public function testInstallation()
+    {
+        $this->cliCommad->install(
+            ['Magento_TestSetupDeclarationModule1']
+        );
+
+    }
+}