improve tests for getComponentOption

test/getComponentOption.spec.js

@@ -7,12 +7,33 @@ describe('getComponentOption', () => {
 
   afterEach(() => component.$destroy())
 
+  it('returns an empty object when no matching options are found', () => {
+    component = new Vue()
+    const fetchedOption = getComponentOption({ component, option: 'noop' })
+    expect(fetchedOption).to.eql({})
+  })
+
   it('fetches the given option from the given component', () => {
     component = new Vue({ someOption: 'foo' })
     const fetchedOption = getComponentOption({ component, option: 'someOption' })
     expect(fetchedOption).to.eql('foo')
   })
 
+  it('binds option method context to the component instance', () => {
+    component = new Vue({
+      data: {
+        age: 44
+      },
+      foo: {
+        bar () {
+          return this.age
+        }
+      }
+    })
+    const fetchedOption = getComponentOption({ component, option: 'foo' })
+    expect(fetchedOption.bar()).to.equal(44)
+  })
+
   it('fetches deeply nested component options and merges them', () => {
     Vue.component('merge-child', { template: '<div></div>', foo: { bar: 'baz' } })