refactor: refactor getSelectorTypeOrThrow method (#515)

Author: lusarz

packages/test-utils/src/get-selector-type.js

@@ -16,28 +16,11 @@ import {
   DOM_SELECTOR
 } from './consts'
 
-function getSelectorType (selector: Selector): string | void {
-  if (isDomSelector(selector)) {
-    return DOM_SELECTOR
-  }
-
-  if (isNameSelector(selector)) {
-    return NAME_SELECTOR
-  }
-
-  if (isVueComponent(selector)) {
-    return COMPONENT_SELECTOR
-  }
-
-  if (isRefSelector(selector)) {
-    return REF_SELECTOR
-  }
-}
-
 export default function getSelectorTypeOrThrow (selector: Selector, methodName: string): string | void {
-  const selectorType = getSelectorType(selector)
-  if (!selectorType) {
-    throwError(`wrapper.${methodName}() must be passed a valid CSS selector, Vue constructor, or valid find option object`)
-  }
-  return selectorType
+  if (isDomSelector(selector)) return DOM_SELECTOR
+  if (isNameSelector(selector)) return NAME_SELECTOR
+  if (isVueComponent(selector)) return COMPONENT_SELECTOR
+  if (isRefSelector(selector)) return REF_SELECTOR
+
+  throwError(`wrapper.${methodName}() must be passed a valid CSS selector, Vue constructor, or valid find option object`)
 }