test: use spyOn

Author: lmiller1990

test/specs/render.spec.js

@@ -8,7 +8,7 @@ describeDoNotRunIf(process.env.TEST_ENV !== 'node', 'render', () => {
       template: '<div><h2>Test</h2><p></p><p></p></div>'
     }
     const wrapper = await render(TestComponent)
-    expect(wrapper).to.be.an.instanceof(Cheerio)
+    expect(wrapper).toBeAnInstanceof(Cheerio)
     expect(wrapper.find('h2').text()).toEqual('Test')
     expect(wrapper.find('p').length).toEqual(2)
   })

test/specs/renderToString.spec.js

@@ -59,8 +59,8 @@ describeDoNotRunIf(process.env.TEST_ENV !== 'node', 'renderToString', () => {
         $route
       }
     })
-    expect(str).contains('true')
-    expect(str).contains('http://test.com')
+    expect(str).toContain('true')
+    expect(str).toContain('http://test.com')
   })
 
   it('mounts component with $parent set to options.parentComponent', async () => {

test/specs/wrapper.spec.js

@@ -21,11 +21,11 @@ describeWithShallowAndMount('Wrapper', mountingMethod => {
     })
 
     it('calls the hook function', () => {
-      const hookSpy = sandbox.spy()
+      const hookSpy = jest.fn()
 
       enableAutoDestroy(hookSpy)
 
-      expect(hookSpy).calledOnce
+      expect(hookSpy).toHaveBeenCalled()
     })
 
     it('uses the hook function to destroy wrappers', () => {
@@ -34,11 +34,11 @@ describeWithShallowAndMount('Wrapper', mountingMethod => {
         hookCallback = callback
       })
       const wrapper = mountingMethod({ template: '<p>con tent</p>' })
-      sandbox.spy(wrapper, 'destroy')
+      jest.spyOn(wrapper, 'destroy')
 
       hookCallback()
 
-      expect(wrapper.destroy).calledOnce
+      expect(wrapper.destroy).toHaveBeenCalled()
     })
 
     it('cannot be called twice', () => {