docs: add other options to docs/en/api/options.md (#252)

* Add other options to docs/en/api/options.md

* Update test/unit/specs/mount.spec.js

* Fix docs/en/api/options.md

Author: 38elements

docs/en/README.md

@@ -27,6 +27,7 @@
     - [listeners](api/options.md#listeners)
     - [clone](api/options.md#clone)
     - [provide](api/options.md#provide)
+    - [other options](api/options.md#other-options)
   * [Wrapper](api/wrapper/README.md)
     * [attributes](api/wrapper/attributes.md)
     * [classes](api/wrapper/classes.md)

docs/en/SUMMARY.md

@@ -23,6 +23,7 @@
     - [listeners](api/options.md#listeners)
     - [clone](api/options.md#clone)
     - [provide](api/options.md#provide)
+    - [other options](api/options.md#other-options)
   * [Wrapper](api/wrapper/README.md)
     * [attributes](api/wrapper/attributes.md)
     * [classes](api/wrapper/classes.md)

docs/en/api/README.md

@@ -13,6 +13,7 @@
   - [listeners](./options.md#listeners)
   - [clone](./options.md#clone)
   - [provide](./options.md#provide)
+  - [other options](./options.md#other-options)
 * [Wrapper](./wrapper/README.md)
   * [attributes](./wrapper/attributes.md)
   * [classes](./wrapper/classes.md)

docs/en/api/options.md

@@ -1,8 +1,6 @@
 # Mounting Options
 
-Options for `mount` and `shallow`. The options object can contain both `vue-test-utils` mounting options and raw Vue options.
-
-Vue options are passed to the component when a new instance is created. , e.g. `store`, `propsData`. For a full list, see the [Vue API docs](https://vuejs.org/v2/api/).
+Options for `mount` and `shallow`. The options object can contain both `vue-test-utils` mounting options and other options.
 
 ## `vue-test-utils` Specific Mounting Options
 
@@ -166,3 +164,33 @@ Clones component before mounting if `true`, which avoids mutating the original c
 - type: `Object`
 
 Pass properties for components to use in injection. See [provide/inject](https://vuejs.org/v2/api/#provide-inject).
+
+## Other options 
+
+When the options for `mount` and `shallow` contain the options other than the mounting options, the component options are overwritten with those using [extends](https://vuejs.org/v2/api/#extends).
+
+```js
+const Component = {
+  template: '<div>{{ foo() }}{{ bar() }}{{ baz() }}</div>',
+  methods: {
+    foo () {
+      return 'a'
+    },
+    bar () {
+      return 'b'
+    }
+  }
+}
+const options = {
+  methods: {
+    bar () {
+      return 'B'
+    },
+    baz () {
+      return 'C'
+    }
+  }
+}
+const wrapper = mount(Component, options)
+expect(wrapper.text()).to.equal('aBC')
+```

test/unit/specs/mount.spec.js

@@ -148,4 +148,30 @@ describe('mount', () => {
     const fn = () => mount(TestComponent)
     expect(fn).to.throw()
   })
+
+  it('overwrites the component options with the options other than the mounting options when the options for mount contain those', () => {
+    const Component = {
+      template: '<div>{{ foo() }}{{ bar() }}{{ baz() }}</div>',
+      methods: {
+        foo () {
+          return 'a'
+        },
+        bar () {
+          return 'b'
+        }
+      }
+    }
+    const options = {
+      methods: {
+        bar () {
+          return 'B'
+        },
+        baz () {
+          return 'C'
+        }
+      }
+    }
+    const wrapper = mount(Component, options)
+    expect(wrapper.text()).to.equal('aBC')
+  })
 })