MAGETWO-46808: [GITHUB] Admin order creation fails when "Include Tax In Order Total" set to yes #2675

    - Fix unit test failure

Author: Yu Tang

app/code/Magento/Tax/Model/Quote/GrandTotalDetailsPlugin.php

@@ -75,6 +75,7 @@ protected function getRatesData($rates)
      * @param \Magento\Quote\Model\Quote\Address\Total[] $addressTotals
      * @return \Magento\Quote\Api\Data\TotalSegmentInterface[]
      * @SuppressWarnings(PHPMD.UnusedFormalParameter)
+     * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      */
     public function aroundProcess(
         \Magento\Quote\Model\Cart\TotalsConverter $subject,

app/code/Magento/Tax/Test/Unit/Model/Quote/GrandTotalDetailsPluginTest.php

@@ -179,7 +179,12 @@ public function testAroundProcess()
 
         $extensionAttributeMock = $this->getMockBuilder(
             '\Magento\Quote\Api\Data\TotalSegmentExtensionInterface'
-        )->getMock();
+        )->setMethods(
+            [
+                'setTaxGrandtotalDetails',
+
+            ]
+        )->getMockForAbstractClass();
         $extensionAttributeMock->expects($this->once())
             ->method('setTaxGrandtotalDetails')
             ->with([$taxDetailsMock])