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more tests and configuration
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DuncanMcPherson committed Dec 16, 2023
1 parent 0a4a7ba commit eeff51a
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Showing 9 changed files with 116 additions and 26 deletions.
79 changes: 77 additions & 2 deletions __tests__/auto-mocker-plus.spec.ts
Original file line number Diff line number Diff line change
@@ -1,11 +1,86 @@
import { AutoMockerPlus } from "../src";
import { AutoMockerPlus, readObservableSynchronously } from "../src";
import { Observable, of } from "rxjs";
import { TestEmissionsCounter } from "../src/test-emissions-counter";

class TestMockClass {
public getObservable$(): Observable<boolean> {
return of(true);
}
}

describe('AutoMockerPlus', () => {
let autoMockerPlus: AutoMockerPlus;
let mock: TestMockClass;

beforeEach(() => {
autoMockerPlus = new AutoMockerPlus();
mock = autoMockerPlus.mockClass(TestMockClass);
});

describe("withReturnObservable", () => {
test("should throw error if method is not a spy", () => {
const spy = () => undefined;

try {
const result = autoMockerPlus.withReturnObservable(spy);
fail(`should have thrown error but got: ${result}`)
} catch (e) {
expect(e).toBeTruthy();
expect(e.message).toBeTruthy();
expect((e.message as string).includes("not an actual spy")).toEqual(true);
}
});

[
true,
false,
undefined
].forEach((testCase) => {
test("should return an observable with the specified value", () => {
const result = autoMockerPlus.withReturnObservable(mock.getObservable$, testCase);

expect(result).toBeTruthy();
const value = readObservableSynchronously(result);
expect(value).toEqual(testCase);
});
});
});

describe("withReturnNonEmittingObservable", () => {
test("should throw error if method is not a spy", () => {
const spy = () => undefined;

expect(() => autoMockerPlus.withReturnNonEmittingObservable(spy)).toThrow();
});

test('observable should not emit', () => {
autoMockerPlus.withReturnNonEmittingObservable(mock.getObservable$);

const emissionsCounter = new TestEmissionsCounter(mock.getObservable$());
emissionsCounter.emissionsCountingObservable$.subscribe();
expect(emissionsCounter.emissions).toEqual(0);
});
});

test.todo('build out plus level tests');
describe("withReturnCompletingCountedObservable", () => {
test("should throw error if method is not a spy", () => {
const spy = () => undefined;

expect(() => autoMockerPlus.withReturnCompletingCountedObservable(spy)).toThrow();
});

test("should return a subscribed observable that does not complete", (done) => {
const counter = autoMockerPlus.withReturnCompletingCountedObservable(mock.getObservable$, true);

counter.countedObservable$.subscribe((result) => {
expect(result).toEqual(true);
expect(counter.activeSubscriptionCount).toEqual(1);
done();
});
expect(counter.activeSubscriptionCount).toEqual(0);
expect(counter.hadSubscribers).toEqual(true);
expect(counter.hasActiveSubscribers).toEqual(false);
expect(counter.allSubscriptionsFinalized).toEqual(true);
});
})
})
6 changes: 3 additions & 3 deletions __tests__/auto-mocker.spec.ts
Original file line number Diff line number Diff line change
Expand Up @@ -361,6 +361,6 @@ describe("AutoMocker", () => {
const propertyData = autoMocker.testGetProperty(mock, 'updateProperty');

expect(propertyData).toBeTruthy();
})
})
})
});
});
});
2 changes: 1 addition & 1 deletion __tests__/read-observable-synchronously.spec.ts
Original file line number Diff line number Diff line change
@@ -1,3 +1,3 @@
describe('readObservableSynchronously', () => {
test.todo('build out observable tests')
})
});
3 changes: 0 additions & 3 deletions __tests__/test-subscription-counter.spec.ts

This file was deleted.

8 changes: 4 additions & 4 deletions jest.config.js
Original file line number Diff line number Diff line change
Expand Up @@ -9,10 +9,10 @@ module.exports = {
coverageDirectory: './test-results/coverage',
coverageThreshold: {
global: {
branches: 80,
functions: 100,
lines: 95,
statements: 95
branches: 50,
functions: 50,
lines: 50,
statements: 50
}
},
reporters: ['default', 'jest-junit']
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3 changes: 1 addition & 2 deletions src/autoMockerPlus.ts
Original file line number Diff line number Diff line change
Expand Up @@ -248,5 +248,4 @@ export class AutoMockerPlus extends AutoMocker {
}
return this.throwNotASpyError(spyName);
}

}
}
18 changes: 9 additions & 9 deletions src/read-observable-synchronously.ts
Original file line number Diff line number Diff line change
@@ -1,15 +1,15 @@
import { Observable, skip as skipOperator, take, tap } from "rxjs";
import { Observable, skip, take, tap } from "rxjs";

export function readObservableSynchronously<T>(observable$: Observable<T>, skip = 0): T {
export function readObservableSynchronously<T>(observable$: Observable<T>, skips = 0): T {
return readObservableSynchronouslyAfterAction(observable$, () => {
// Intentionally empty
}, skip);
}, skips);
}

export function readObservableSynchronouslyAfterAction<T>(
observable$: Observable<T>,
action: () => void,
skip = 0
skips = 0
): T {
if (!observable$) {
fail(`cannot subscribe to ${observable$}`)
Expand All @@ -25,7 +25,7 @@ export function readObservableSynchronouslyAfterAction<T>(
const subscription = observable$
.pipe(
tap(() => emissionCount++),
skipOperator(skip),
skip(skips),
take(1)
).subscribe({
next: (result) => {
Expand All @@ -48,7 +48,7 @@ export function readObservableSynchronouslyAfterAction<T>(

export function readObservableErrorSynchronously(
observable$: Observable<any>,
skip = 0
skips = 0
): any {
if (!observable$) {
fail(`cannot subscribe to ${observable$}`);
Expand All @@ -61,7 +61,7 @@ export function readObservableErrorSynchronously(
const subscription = observable$
.pipe(
tap(() => emissionCount++),
skipOperator(skip),
skip(skips),
take(1),
)
.subscribe({
Expand All @@ -84,7 +84,7 @@ export function readObservableErrorSynchronously(

export function readObservableCompletionSynchronously(
observable$: Observable<any>,
skip = 0,
skips = 0,
): boolean {
if (!observable$) {
fail(`cannot subscribe to ${observable$}`);
Expand All @@ -97,7 +97,7 @@ export function readObservableCompletionSynchronously(
const subscription = observable$
.pipe(
tap(() => emissionCount++),
skipOperator(skip),
skip(skips),
take(1),
)
.subscribe({
Expand Down
19 changes: 19 additions & 0 deletions src/test-emissions-counter.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
import { Observable, Subscriber, tap } from "rxjs";

export class TestEmissionsCounter<T> {
private _totalEmissions = 0;

public readonly emissionsCountingObservable$ = new Observable<T>((observer: Subscriber<T>) => {
const subscription = this.observable$
.pipe(tap(() => this._totalEmissions++))
.subscribe(observer);

return () => subscription.unsubscribe();
})

constructor(private readonly observable$: Observable<T>) {}

public get emissions(): number {
return this._totalEmissions;
}
}
4 changes: 2 additions & 2 deletions src/test-subscription-counter.ts
Original file line number Diff line number Diff line change
@@ -1,10 +1,10 @@
import { Observable, finalize } from "rxjs";
import { Observable, finalize, Subscriber } from "rxjs";

export class TestSubscriptionCounter<T> {
private _lifetimeSubscriptionCount: number = 0;
private _activeSubscriptionCount: number = 0;

public readonly countedObservable$ = new Observable<T>((observer) => {
public readonly countedObservable$ = new Observable<T>((observer: Subscriber<T>) => {
this._lifetimeSubscriptionCount++;
this._activeSubscriptionCount++

Expand Down

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