MC-33071: Stabilize Web-API tests

Author: zakdma

dev/tests/api-functional/testsuite/Magento/Webapi/DeserializationTest.php

@@ -44,7 +44,7 @@ public function testPostRequestWithEmptyBody()
             $this->_webApiCall($serviceInfo, RestClient::EMPTY_REQUEST_BODY);
         } catch (\Exception $e) {
             $this->assertEquals(\Magento\Framework\Webapi\Exception::HTTP_BAD_REQUEST, $e->getCode());
-            $this->assertContains(
+            $this->assertStringContainsString(
                 $expectedMessage,
                 $e->getMessage(),
                 "Response does not contain expected message."
@@ -71,7 +71,7 @@ public function testPutRequestWithEmptyBody()
             $this->_webApiCall($serviceInfo, RestClient::EMPTY_REQUEST_BODY);
         } catch (\Exception $e) {
             $this->assertEquals(\Magento\Framework\Webapi\Exception::HTTP_BAD_REQUEST, $e->getCode());
-            $this->assertContains(
+            $this->assertStringContainsString(
                 $expectedMessage,
                 $e->getMessage(),
                 "Response does not contain expected message."

dev/tests/api-functional/testsuite/Magento/Webapi/Routing/BaseService.php

@@ -43,7 +43,7 @@ protected function _assertRestUnauthorizedException($serviceInfo, $requestData =
         try {
             $this->_webApiCall($serviceInfo, $requestData);
         } catch (\Exception $e) {
-            $this->assertContains(
+            $this->assertStringContainsString(
                 '{"message":"The consumer isn\'t authorized to access %resources.',
                 $e->getMessage(),
                 sprintf(
@@ -111,7 +111,7 @@ protected function _assertSoapException($serviceInfo, $requestData = null, $expe
             }
 
             if ($expectedMessage) {
-                $this->assertContains($expectedMessage, $e->getMessage());
+                $this->assertStringContainsString($expectedMessage, $e->getMessage());
             }
         }
     }