ENGCOM-1589: Fix typo in test method's name and test result #15297

 - Merge Pull Request #15297 from dmytro-ch/magento2:fix/2.2-typo-in-test-method-name-and-result-value
 - Merged commits:
   1. becbf6a
   2. 629f650
   3. 7715d65
   4. 73afa84

Author: magento-engcom-team

dev/tests/functional/tests/app/Magento/Checkout/Test/Block/Onepage/Shipping/Method.php

@@ -91,13 +91,24 @@ public function selectShippingMethod(array $method)
      * @param array $method
      * @return bool
      */
-    public function isShippingMethodAvaiable(array $method)
+    public function isShippingMethodAvailable(array $method)
     {
         $this->waitForShippingRates();
         $selector = sprintf($this->shippingMethod, $method['shipping_method'], $method['shipping_service']);
         return $this->_rootElement->find($selector, Locator::SELECTOR_XPATH)->isVisible();
     }
 
+    /**
+     * @deprecated
+     * @see isShippingMethodAvailable
+     * @param array $method
+     * @return bool
+     */
+    public function isShippingMethodAvaiable(array $method)
+    {
+        return $this->isShippingMethodAvailable($method);
+    }
+
     /**
      * Click continue button.
      *

dev/tests/functional/tests/app/Magento/Shipping/Test/Constraint/AssertCityBasedShippingRateChanged.php

@@ -30,10 +30,10 @@ public function processAssert(CheckoutOnepage $checkoutOnepage, $shippingMethod,
                 'Shipping rate has not been changed.'
             );
         }
-        $shippingAvailability = $isShippingAvailable ? 'avaiable' : 'unavailable';
+        $shippingAvailability = $isShippingAvailable ? 'available' : 'unavailable';
         \PHPUnit_Framework_Assert::assertEquals(
             $isShippingAvailable,
-            $checkoutOnepage->getShippingMethodBlock()->isShippingMethodAvaiable($shippingMethod),
+            $checkoutOnepage->getShippingMethodBlock()->isShippingMethodAvailable($shippingMethod),
             "Shipping rates for {$shippingMethod['shipping_service']} should be $shippingAvailability."
         );
     }