diff --git a/public/docs/ts/latest/guide/testing.jade b/public/docs/ts/latest/guide/testing.jade
index 29ce082007..1873fedc03 100644
--- a/public/docs/ts/latest/guide/testing.jade
+++ b/public/docs/ts/latest/guide/testing.jade
@@ -172,7 +172,7 @@ block includes
1. [Override component providers](#component-override)
- 1. [替换组件提供商](#component-override)
+ 1. [重载组件提供商](#component-override)
1. [Test a _RouterOutlet_ component](#router-outlet-component)
@@ -1145,7 +1145,7 @@ a(href="#top").to-top 回到顶部
See the section "[_Override Component Providers_](#component-override)" for a use case
in which `inject` and `TestBed.get` do not work and you must get the service from the component's injector.
- 到“[**替换组件提供商**](#component-override)”查看`inject`和`TestBed.get`无效、必须从组件的注入器获取服务的用例。
+ 到“[**重载组件提供商**](#component-override)”查看`inject`和`TestBed.get`无效、必须从组件的注入器获取服务的用例。
:marked
### Always get the service from an injector
@@ -2361,7 +2361,7 @@ a(href="#top").to-top 回到顶部
:marked
# Override component providers
- # 替换组件提供商
+ # 重载组件提供商
The `HeroDetailComponent` provides its own `HeroDetailService`.
@@ -2437,8 +2437,8 @@ a(href="#top").to-top 回到顶部
It takes two arguments: the component type to override (`HeroDetailComponent`) and an override metadata object.
The [overide metadata object](#metadata-override-object) is a generic defined as follows:
- 它接受两个参数:要替换的组件类型(`HeroDetailComponent`)和用于替换的元数据对象。
- [替换元数据对象](#metadata-override-object)是泛型类,就像这样:
+ 它接受两个参数:要重载的组件类型(`HeroDetailComponent`)和用于重载的元数据对象。
+ [重载元数据对象](#metadata-override-object)是泛型类,就像这样:
code-example(format="." language="javascript").
type MetadataOverride = {
@@ -2450,7 +2450,7 @@ code-example(format="." language="javascript").
A metadata override object can either add-and-remove elements in metadata properties or completely reset those properties.
This example resets the component's `providers` metadata.
- 元数据替换对象可以添加和删除元数据属性的项目,也可以彻底重设这些属性。
+ 元数据重载对象可以添加和删除元数据属性的项目,也可以彻底重设这些属性。
这个例子重新设置了组件的`providers`元数据。
The type parameter, `T`, is the kind of metadata you'd pass to the `@Component` decorator:
@@ -2478,7 +2478,7 @@ code-example(format="." language="javascript").
:marked
### The override tests
- ### 替换的测试
+ ### 重载的测试
Now the tests can control the component's hero directly by manipulating the stub's `testHero`.
@@ -2488,14 +2488,14 @@ code-example(format="." language="javascript").
:marked
### More overrides
- ### 更多替换
+ ### 更多重载
The `TestBed.overrideComponent` method can be called multiple times for the same or different components.
The `TestBed` offers similar `overrideDirective`, `overrideModule`, and `overridePipe` methods
for digging into and replacing parts of these other classes.
`TestBed.overrideComponent`方法可以在相同或不同的组件中被反复调用。
- `TestBed`还提供了类似的`overrideDirective`、`overrideModule`和`overridePipe`方法,用来深入并替换这些其它类的部件。
+ `TestBed`还提供了类似的`overrideDirective`、`overrideModule`和`overridePipe`方法,用来深入并重载这些其它类的部件。
Explore the options and combinations on your own.
@@ -3269,6 +3269,8 @@ code-example(format="." language="javascript").
Each overide method takes a `MetadataOverride` where `T` is the kind of metadata
appropriate to the method, the parameter of an `@NgModule`, `@Component`, `@Directive`, or `@Pipe`.
+
+
code-example(format="." language="javascript").
type MetadataOverride = {
add?: T;