本文整理匯總了TypeScript中@angular/platform-browser-dynamic/testing/src/metadata_overrider.MetadataOverrider類的典型用法代碼示例。如果您正苦於以下問題：TypeScript MetadataOverrider類的具體用法？TypeScript MetadataOverrider怎麽用？TypeScript MetadataOverrider使用的例子？那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了MetadataOverrider類的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: describe
describe('metadata overrider', () => {
let overrider: MetadataOverrider;
beforeEach(() => { overrider = new MetadataOverrider(); });
it('should return a new instance with the same values', () => {
const oldInstance = new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someInput'});
const newInstance = overrider.overrideMetadata(SomeMetadata, oldInstance, {});
expect(newInstance).not.toBe(oldInstance);
expect(newInstance).toBeAnInstanceOf(SomeMetadata);
expect(newInstance).toEqual(oldInstance);
});
it('should set individual properties and keep others', () => {
const oldInstance =
new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someGetterProp'});
const newInstance =
overrider.overrideMetadata(SomeMetadata, oldInstance, {set: {plainProp: 'newPlainProp'}});
expect(newInstance)
.toEqual(new SomeMetadata({plainProp: 'newPlainProp', getterProp: 'someGetterProp'}));
});
describe('add properties', () => {
it('should replace non array values', () => {
const oldInstance =
new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someGetterProp'});
const newInstance = overrider.overrideMetadata(
SomeMetadata, oldInstance, {add: {plainProp: 'newPlainProp'}});
expect(newInstance)
.toEqual(new SomeMetadata({plainProp: 'newPlainProp', getterProp: 'someGetterProp'}));
});
it('should add to array values', () => {
const oldInstance = new SomeMetadata({arrayProp: ['a']});
const newInstance =
overrider.overrideMetadata(SomeMetadata, oldInstance, {add: {arrayProp: ['b']}});
expect(newInstance).toEqual(new SomeMetadata({arrayProp: ['a', 'b']}));
});
});
describe('remove', () => {
it('should set values to undefined if their value matches', () => {
const oldInstance =
new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someGetterProp'});
const newInstance = overrider.overrideMetadata(
SomeMetadata, oldInstance, {remove: {plainProp: 'somePlainProp'}});
expect(newInstance)
.toEqual(new SomeMetadata({plainProp: undefined, getterProp: 'someGetterProp'}));
});
it('should leave values if their value does not match', () => {
const oldInstance =
new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someGetterProp'});
const newInstance = overrider.overrideMetadata(
SomeMetadata, oldInstance, {remove: {plainProp: 'newPlainProp'}});
expect(newInstance)
.toEqual(new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someGetterProp'}));
});
it('should remove a value from an array', () => {
const oldInstance =
new SomeMetadata({arrayProp: ['a', 'b', 'c'], getterProp: 'someGetterProp'});
const newInstance = overrider.overrideMetadata(
SomeMetadata, oldInstance, {remove: {arrayProp: ['a', 'c']}});
expect(newInstance)
.toEqual(new SomeMetadata({arrayProp: ['b'], getterProp: 'someGetterProp'}));
});
it('should support types as values', () => {
class Class1 {}
class Class2 {}
class Class3 {}
const instance1 = new SomeMetadata({arrayProp: [Class1, Class2, Class3]});
const instance2 =
overrider.overrideMetadata(SomeMetadata, instance1, {remove: {arrayProp: [Class1]}});
expect(instance2).toEqual(new SomeMetadata({arrayProp: [Class2, Class3]}));
const instance3 =
overrider.overrideMetadata(SomeMetadata, instance2, {remove: {arrayProp: [Class3]}});
expect(instance3).toEqual(new SomeMetadata({arrayProp: [Class2]}));
});
});
describe('subclasses', () => {
it('should set individual properties and keep others', () => {
const oldInstance = new OtherMetadata({
plainProp: 'somePlainProp',
getterProp: 'someGetterProp',
otherPlainProp: 'newOtherProp'
});
const newInstance = overrider.overrideMetadata(
OtherMetadata, oldInstance, {set: {plainProp: 'newPlainProp'}});
expect(newInstance).toEqual(new OtherMetadata({
plainProp: 'newPlainProp',
getterProp: 'someGetterProp',
otherPlainProp: 'newOtherProp'
}));
});
//.........這裏部分代碼省略.........
示例2: it
it('should support types as values', () => {
class Class1 {}
class Class2 {}
class Class3 {}
const instance1 = new SomeMetadata({arrayProp: [Class1, Class2, Class3]});
const instance2 =
overrider.overrideMetadata(SomeMetadata, instance1, {remove: {arrayProp: [Class1]}});
expect(instance2).toEqual(new SomeMetadata({arrayProp: [Class2, Class3]}));
const instance3 =
overrider.overrideMetadata(SomeMetadata, instance2, {remove: {arrayProp: [Class3]}});
expect(instance3).toEqual(new SomeMetadata({arrayProp: [Class2]}));
});示例3: SomeMetadata
it('should set values to undefined if their value matches', () => {
const oldInstance =
new SomeMetadata({plainProp: 'somePlainProp', getterProp: 'someGetterProp'});
const newInstance = overrider.overrideMetadata(
SomeMetadata, oldInstance, {remove: {plainProp: 'somePlainProp'}});
expect(newInstance)
.toEqual(new SomeMetadata({plainProp: undefined, getterProp: 'someGetterProp'}));
});