TestBed
class
Configures and initializes environment for unit testing and provides methods for creating components and services in unit tests.
class TestBed {
platform: PlatformRef
ngModule: Type<any> | Type<any>[]
initTestEnvironment(ngModule: Type<any> | Type<any>[], platform: PlatformRef, aotSummaries?: () => any[]): void
resetTestEnvironment(): void
resetTestingModule(): void
configureCompiler(config: { providers?: any[]; useJit?: boolean; }): void
configureTestingModule(moduleDef: TestModuleMetadata): void
compileComponents(): Promise<any>
inject<T>(token: Type<T> | InjectionToken<T> | AbstractType<T>, notFoundValue?: T, flags?: InjectFlags): T
get<T>(token: Type<T> | InjectionToken<T>, notFoundValue?: T, flags?: InjectFlags): any
execute(tokens: any[], fn: Function, context?: any): any
overrideModule(ngModule: Type<any>, override: MetadataOverride<NgModule>): void
overrideComponent(component: Type<any>, override: MetadataOverride<Component>): void
overrideDirective(directive: Type<any>, override: MetadataOverride<Directive>): void
overridePipe(pipe: Type<any>, override: MetadataOverride<Pipe>): void
overrideProvider(token: any, provider: { useFactory: Function; deps: any[]; }): void
overrideTemplateUsingTestingModule(component: Type<any>, template: string): void
createComponent<T>(component: Type<T>): ComponentFixture<T>
}
Description
TestBed
is the primary api for writing unit tests for Angular applications and libraries.
Note: Use TestBed
in tests. It will be set to either TestBedViewEngine
or TestBedRender3
according to the compiler used.
Properties
Property | Description |
---|---|
platform: PlatformRef
|
|
Type<any>[] |
Methods
initTestEnvironment() | |||||||||
---|---|---|---|---|---|---|---|---|---|
Initialize the environment for testing with a compiler factory, a PlatformRef, and an angular module. These are common to every test in the suite. | |||||||||
initTestEnvironment(ngModule: Type<any> | Type<any>[], platform: PlatformRef, aotSummaries?: () => any[]): voidParameters
Returns
| |||||||||
This may only be called once, to set up the common providers for the current test suite on the current platform. If you absolutely need to change the providers, first use Test modules and platforms for individual platforms are available from '@angular//testing'. |
resetTestEnvironment() |
---|
Reset the providers for the test injector. |
resetTestEnvironment(): voidParametersThere are no parameters. Returns
|
resetTestingModule() |
---|
resetTestingModule(): voidParametersThere are no parameters. Returns
|
configureCompiler() | |||
---|---|---|---|
configureCompiler(config: { providers?: any[]; useJit?: boolean; }): voidParameters
Returns
|
configureTestingModule() | |||
---|---|---|---|
configureTestingModule(moduleDef: TestModuleMetadata): voidParameters
Returns
|
compileComponents() |
---|
compileComponents(): Promise<any>ParametersThere are no parameters. Returns
|
inject() | |||||||||
---|---|---|---|---|---|---|---|---|---|
inject<T>(token: Type<T> | InjectionToken<T> | AbstractType<T>, notFoundValue: null, flags?: InjectFlags): T | nullParameters
Returns
|
get() | ||||||
---|---|---|---|---|---|---|
get(token: any, notFoundValue?: any): anyDeprecated from v9.0.0 use TestBed.inject
Parameters
Returns
|
execute() | |||||||||
---|---|---|---|---|---|---|---|---|---|
execute(tokens: any[], fn: Function, context?: any): anyParameters
Returns
|
overrideModule() | ||||||
---|---|---|---|---|---|---|
overrideModule(ngModule: Type<any>, override: MetadataOverride<NgModule>): voidParameters
Returns
|
overrideComponent() | ||||||
---|---|---|---|---|---|---|
overrideComponent(component: Type<any>, override: MetadataOverride<Component>): voidParameters
Returns
|
overrideDirective() | ||||||
---|---|---|---|---|---|---|
overrideDirective(directive: Type<any>, override: MetadataOverride<Directive>): voidParameters
Returns
|
overridePipe() | ||||||
---|---|---|---|---|---|---|
overridePipe(pipe: Type<any>, override: MetadataOverride<Pipe>): voidParameters
Returns
|
overrideProvider() | ||||||
---|---|---|---|---|---|---|
Overwrites all providers for the given token with the given provider definition. | ||||||
overrideProvider(token: any, provider: { useValue: any; }): voidParameters
Returns
| ||||||
overrideProvider(token: any, provider: { useFactory?: Function; useValue?: any; deps?: any[]; }): voidParameters
Returns
|
overrideTemplateUsingTestingModule() | ||||||
---|---|---|---|---|---|---|
overrideTemplateUsingTestingModule(component: Type<any>, template: string): voidParameters
Returns
|
createComponent() | |||
---|---|---|---|
createComponent<T>(component: Type<T>): ComponentFixture<T>Parameters
Returns
|
© 2010–2020 Google, Inc.
Licensed under the Creative Commons Attribution License 4.0.
https://v10.angular.io/api/core/testing/TestBed