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bitwarden-browser/libs/common/spec/fake-state.ts
Matt Gibson 211d7a2626
Ps/improve state provider fakers (#7494)
* Expand state provider fakes

- default null initial value for fake states
- Easier mocking of key definitions through just the use of key names
  - allows for not exporting KeyDefinition as long as the key doesn't collide
- mock of fake state provider to verify `get` calls
- `nextMock` for use of the fn mock matchers on emissions of `state$`
- `FakeAccountService` which allows for easy initialization and working with account switching

* Small bug fix for cache key collision on key definitions unique by only storage location

* Fix initial value for test
2024-01-10 10:36:19 -05:00

221 lines
7.1 KiB
TypeScript

import { Observable, ReplaySubject, firstValueFrom, map, timeout } from "rxjs";
import {
DerivedState,
GlobalState,
SingleUserState,
ActiveUserState,
KeyDefinition,
} from "../src/platform/state";
// eslint-disable-next-line import/no-restricted-paths -- using unexposed options for clean typing in test class
import { StateUpdateOptions } from "../src/platform/state/state-update-options";
// eslint-disable-next-line import/no-restricted-paths -- using unexposed options for clean typing in test class
import { CombinedState, activeMarker } from "../src/platform/state/user-state";
import { UserId } from "../src/types/guid";
import { FakeAccountService } from "./fake-account-service";
const DEFAULT_TEST_OPTIONS: StateUpdateOptions<any, any> = {
shouldUpdate: () => true,
combineLatestWith: null,
msTimeout: 10,
};
function populateOptionsWithDefault(
options: StateUpdateOptions<any, any>,
): StateUpdateOptions<any, any> {
return {
...DEFAULT_TEST_OPTIONS,
...options,
};
}
export class FakeGlobalState<T> implements GlobalState<T> {
// eslint-disable-next-line rxjs/no-exposed-subjects -- exposed for testing setup
stateSubject = new ReplaySubject<T>(1);
constructor(initialValue?: T) {
this.stateSubject.next(initialValue ?? null);
}
update: <TCombine>(
configureState: (state: T, dependency: TCombine) => T,
options?: StateUpdateOptions<T, TCombine>,
) => Promise<T> = jest.fn(async (configureState, options) => {
options = populateOptionsWithDefault(options);
if (this.stateSubject["_buffer"].length == 0) {
// throw a more helpful not initialized error
throw new Error(
"You must initialize the state with a value before calling update. Try calling `stateSubject.next(initialState)` before calling update",
);
}
const current = await firstValueFrom(this.state$.pipe(timeout(100)));
const combinedDependencies =
options.combineLatestWith != null
? await firstValueFrom(options.combineLatestWith.pipe(timeout(options.msTimeout)))
: null;
if (!options.shouldUpdate(current, combinedDependencies)) {
return current;
}
const newState = configureState(current, combinedDependencies);
this.stateSubject.next(newState);
this.nextMock(newState);
return newState;
});
updateMock = this.update as jest.MockedFunction<typeof this.update>;
nextMock = jest.fn<void, [T]>();
get state$() {
return this.stateSubject.asObservable();
}
private _keyDefinition: KeyDefinition<T> | null = null;
get keyDefinition() {
if (this._keyDefinition == null) {
throw new Error(
"Key definition not yet set, usually this means your sut has not asked for this state yet",
);
}
return this._keyDefinition;
}
set keyDefinition(value: KeyDefinition<T>) {
this._keyDefinition = value;
}
}
export class FakeSingleUserState<T> implements SingleUserState<T> {
// eslint-disable-next-line rxjs/no-exposed-subjects -- exposed for testing setup
stateSubject = new ReplaySubject<CombinedState<T>>(1);
state$: Observable<T>;
combinedState$: Observable<CombinedState<T>>;
constructor(
readonly userId: UserId,
initialValue?: T,
) {
this.stateSubject.next([userId, initialValue ?? null]);
this.combinedState$ = this.stateSubject.asObservable();
this.state$ = this.combinedState$.pipe(map(([_userId, state]) => state));
}
nextState(state: T) {
this.stateSubject.next([this.userId, state]);
}
async update<TCombine>(
configureState: (state: T, dependency: TCombine) => T,
options?: StateUpdateOptions<T, TCombine>,
): Promise<T> {
options = populateOptionsWithDefault(options);
const current = await firstValueFrom(this.state$.pipe(timeout(options.msTimeout)));
const combinedDependencies =
options.combineLatestWith != null
? await firstValueFrom(options.combineLatestWith.pipe(timeout(options.msTimeout)))
: null;
if (!options.shouldUpdate(current, combinedDependencies)) {
return current;
}
const newState = configureState(current, combinedDependencies);
this.stateSubject.next([this.userId, newState]);
this.nextMock(newState);
return newState;
}
updateMock = this.update as jest.MockedFunction<typeof this.update>;
nextMock = jest.fn<void, [T]>();
private _keyDefinition: KeyDefinition<T> | null = null;
get keyDefinition() {
if (this._keyDefinition == null) {
throw new Error(
"Key definition not yet set, usually this means your sut has not asked for this state yet",
);
}
return this._keyDefinition;
}
set keyDefinition(value: KeyDefinition<T>) {
this._keyDefinition = value;
}
}
export class FakeActiveUserState<T> implements ActiveUserState<T> {
[activeMarker]: true;
// eslint-disable-next-line rxjs/no-exposed-subjects -- exposed for testing setup
stateSubject = new ReplaySubject<CombinedState<T>>(1);
state$: Observable<T>;
combinedState$: Observable<CombinedState<T>>;
constructor(
private accountService: FakeAccountService,
initialValue?: T,
) {
this.stateSubject.next([accountService.activeUserId, initialValue ?? null]);
this.combinedState$ = this.stateSubject.asObservable();
this.state$ = this.combinedState$.pipe(map(([_userId, state]) => state));
}
get userId() {
return this.accountService.activeUserId;
}
nextState(state: T) {
this.stateSubject.next([this.userId, state]);
}
async update<TCombine>(
configureState: (state: T, dependency: TCombine) => T,
options?: StateUpdateOptions<T, TCombine>,
): Promise<T> {
options = populateOptionsWithDefault(options);
const current = await firstValueFrom(this.state$.pipe(timeout(options.msTimeout)));
const combinedDependencies =
options.combineLatestWith != null
? await firstValueFrom(options.combineLatestWith.pipe(timeout(options.msTimeout)))
: null;
if (!options.shouldUpdate(current, combinedDependencies)) {
return current;
}
const newState = configureState(current, combinedDependencies);
this.stateSubject.next([this.userId, newState]);
this.nextMock(this.userId, newState);
return newState;
}
updateMock = this.update as jest.MockedFunction<typeof this.update>;
nextMock = jest.fn<void, [UserId, T]>();
private _keyDefinition: KeyDefinition<T> | null = null;
get keyDefinition() {
if (this._keyDefinition == null) {
throw new Error(
"Key definition not yet set, usually this means your sut has not asked for this state yet",
);
}
return this._keyDefinition;
}
set keyDefinition(value: KeyDefinition<T>) {
this._keyDefinition = value;
}
}
export class FakeDerivedState<T> implements DerivedState<T> {
// eslint-disable-next-line rxjs/no-exposed-subjects -- exposed for testing setup
stateSubject = new ReplaySubject<T>(1);
forceValue(value: T): Promise<T> {
this.stateSubject.next(value);
return Promise.resolve(value);
}
forceValueMock = this.forceValue as jest.MockedFunction<typeof this.forceValue>;
get state$() {
return this.stateSubject.asObservable();
}
}