MAGETWO-94070: [2.3.x] Enable/disable EAV indexer from configuration

- Add comment blocks to tests;

Author: adifucan

app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Eav/AbstractActionTest.php

@@ -27,6 +27,9 @@ class AbstractActionTest extends \PHPUnit\Framework\TestCase
      */
     private $scopeConfig;
 
+    /**
+     * @return void
+     */
     protected function setUp()
     {
         $this->_eavDecimalFactoryMock = $this->createPartialMock(
@@ -50,6 +53,9 @@ protected function setUp()
         );
     }
 
+    /**
+     * @return void
+     */
     public function testGetIndexers()
     {
         $expectedIndexers = [
@@ -85,6 +91,10 @@ public function testGetIndexerWithUnknownTypeThrowsException()
         $this->_model->getIndexer('unknown_type');
     }
 
+    /**
+     * @return void
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
     public function testGetIndexer()
     {
         $this->_eavSourceFactoryMock->expects($this->once())
@@ -98,6 +108,10 @@ public function testGetIndexer()
         $this->assertEquals('source_return_value', $this->_model->getIndexer('source'));
     }
 
+    /**
+     * @return void
+     * @throws \Exception
+     */
     public function testReindexWithoutArgumentsExecutesReindexAll()
     {
         $eavSource = $this->getMockBuilder(\Magento\Catalog\Model\ResourceModel\Product\Indexer\Eav\Source::class)
@@ -197,6 +211,10 @@ public function testReindexWithNotNullArgumentExecutesReindexEntities(
         $this->_model->reindex($ids);
     }
 
+    /**
+     * @return void
+     * @throws \Exception
+     */
     public function testReindexWithDisabledEavIndexer()
     {
         $this->scopeConfig->expects($this->once())->method('getValue')->willReturn(0);

app/code/Magento/Catalog/Test/Unit/Model/Indexer/Product/Eav/Action/FullTest.php

@@ -58,6 +58,9 @@ class FullTest extends \PHPUnit\Framework\TestCase
      */
     private $scopeConfig;
 
+    /**
+     * @return void
+     */
     protected function setUp()
     {
         $this->eavDecimalFactory = $this->createPartialMock(DecimalFactory::class, ['create']);
@@ -148,6 +151,10 @@ public function testExecute()
         $this->model->execute();
     }
 
+    /**
+     * @return void
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
     public function testExecuteWithDisabledEavIndexer()
     {
         $this->scopeConfig->expects($this->once())->method('getValue')->willReturn(0);

app/code/Magento/CatalogSearch/Test/Unit/Plugin/EnableEavIndexerTest.php

@@ -39,6 +39,11 @@ protected function setUp()
         );
     }
 
+    /**
+     * Test with other search engine (not MySQL) selected in config
+     *
+     * @return void
+     */
     public function testBeforeSave()
     {
         $this->config->expects($this->once())->method('getData')->willReturn('elasticsearch');
@@ -47,6 +52,11 @@ public function testBeforeSave()
         $this->model->beforeSave($this->config);
     }
 
+    /**
+     * Test with MySQL search engine selected in config
+     *
+     * @return void
+     */
     public function testBeforeSaveMysqlSearchEngine()
     {
         $this->config->expects($this->at(0))->method('getData')->willReturn('mysql');