MC-33069: Stabilize Unit tests

Author: StasKozar

setup/src/Magento/Setup/Fixtures/Quote/QuoteGenerator.php

@@ -689,7 +689,7 @@ private function prepareConfigurableProducts(array $productIds = [])
             foreach ($options as $option) {
                 $attributesInfo[] = [
                     "label" => $option->getLabel(),
-                    "value" => $option['options']['0']['label'],
+                    "value" => isset($option['options']) ? $option['options']['0']['label'] : null,
                     "option_id" => $option->getAttributeId(),
                     "option_value" => $option->getValues()[0]->getValueIndex()
                 ];

setup/src/Magento/Setup/Test/Unit/Fixtures/CartPriceRulesFixtureTest.php

@@ -173,7 +173,7 @@ public function testGenerateAdvancedCondition($ruleId, $categoriesArray, $ruleCo
                 'type' => Product::class,
                 'attribute' => 'category_ids',
                 'operator' => '==',
-                'value' => null,
+                'value' => 0,
             ];
 
             $secondCondition = [
@@ -261,8 +261,8 @@ public function testGenerateAdvancedCondition($ruleId, $categoriesArray, $ruleCo
     public function dataProviderGenerateAdvancedCondition()
     {
         return [
-            [1, [0], 1],
-            [1, [0], 300]
+            [1, [[0]], 1],
+            [1, [[0]], 300]
         ];
     }
 

setup/src/Magento/Setup/Test/Unit/Fixtures/IndexersStatesApplyFixtureTest.php

@@ -60,7 +60,12 @@ public function testExecute()
             ->expects($this->once())
             ->method('getValue')
             ->willReturn([
-                'indexer' => ['id' => 1]
+                'indexer' => [
+                    [
+                        'id' => 1,
+                        'set_scheduled' => false,
+                    ]
+                ]
             ]);
         $this->fixtureModelMock
             ->method('getObjectManager')

setup/src/Magento/Setup/Test/Unit/Fixtures/Quote/QuoteGeneratorTest.php

@@ -234,15 +234,6 @@ private function prepareProducts()
             ->disableOriginalConstructor()
             ->getMockForAbstractClass();
         $option = $this->getMockBuilder(Attribute::class)
-            ->setConstructorArgs(
-                [
-                    'data' => [
-                        'options' => [
-                            ['label' => null],
-                        ],
-                    ],
-                ],
-            )
             ->disableOriginalConstructor()
             ->getMock();
         $optionValue = $this->getMockBuilder(OptionValueInterface::class)