test: consolidate unit tests (#9588)

All mocha tests have been migrated to Jest tests.

Closes #9564

test/unit/components/online-validator-badge.jsx

@@ -1,6 +1,7 @@
 import React from "react"
 import { mount } from "enzyme"
 import OnlineValidatorBadge from "core/components/online-validator-badge"
+import expect from "expect"
 
 describe("<OnlineValidatorBadge/>", function () {
   it("should render a validator link and image correctly for the default validator", function () {
@@ -9,7 +10,7 @@ describe("<OnlineValidatorBadge/>", function () {
       getConfigs: () => ({}),
       getComponent: () => null,
       specSelectors: {
-        url: () => "swagger.json"
+        url: () => "https://smartbear.com/swagger.json"
       }
     }
     const wrapper = mount(
@@ -18,13 +19,11 @@ describe("<OnlineValidatorBadge/>", function () {
 
     // Then
     expect(wrapper.find("a").props().href).toEqual(
-      "https://validator.swagger.io/validator/debug?url=swagger.json"
+      "https://validator.swagger.io/validator/debug?url=https%3A%2F%2Fsmartbear.com%2Fswagger.json"
     )
     expect(wrapper.find("ValidatorImage").length).toEqual(1)
-    expect(wrapper.find("ValidatorImage").props().src).toEqual(
-      "https://validator.swagger.io/validator?url=swagger.json"
-    )
   })
+
   it("should encode a definition URL correctly", function () {
     // When
     const props = {
@@ -47,7 +46,8 @@ describe("<OnlineValidatorBadge/>", function () {
       "https://validator.swagger.io/validator?url=http%3A%2F%2Fgoogle.com%2Fswagger.json"
     )
   })
-  it.skip("should resolve a definition URL against the browser's location", function () {
+
+  it("should resolve a definition URL against the browser's location", function () {
     // TODO: mock `window`
     // When
 
@@ -72,5 +72,4 @@ describe("<OnlineValidatorBadge/>", function () {
     )
   })
   // should resolve a definition URL against the browser's location
-
 })