N°8760 - setupaudit and dry removal API review with Romain - avoid file deletion

N°8760 - be able to simulate extension removal by oerriding GetExtensionMap

be able to simulate SetupAudit errors in Setups for integration tests

fix rebase

tests/php-unit-tests/unitary-tests/setup/feature_removal/ModelSerializationTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Combodo\iTop\Test\UnitTest\Setup\FeatureRemoval;
+
+use Combodo\iTop\Setup\FeatureRemoval\ModelReflectionSerializer;
+use Combodo\iTop\Test\UnitTest\ItopDataTestCase;
+use MetaModel;
+
+class ModelSerializationTest extends ItopDataTestCase
+{
+	protected function setUp(): void
+	{
+		parent::setUp();
+		$this->RequireOnceItopFile('/setup/feature_removal/ModelReflectionSerializer.php');
+	}
+
+	public function testGetModelFromEnvironment()
+	{
+		$aModel = ModelReflectionSerializer::GetInstance()->GetModelFromEnvironment($this->GetTestEnvironment());
+		$this->assertEqualsCanonicalizing(MetaModel::GetClasses(), $aModel);
+	}
+
+	public function testGetModelFromEnvironmentFailure()
+	{
+		$this->expectException(\CoreException::class);
+		$this->expectExceptionMessage("Cannot get classes");
+		ModelReflectionSerializer::GetInstance()->GetModelFromEnvironment('gabuzomeu');
+	}
+}