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Fix useOnyx equality check #566

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merged 4 commits into from
Jul 5, 2024
Merged

Fix useOnyx equality check #566

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106161a
Fix useOnyx equality check
fabioh8010 Jul 4, 2024
f439153
Adjust logic
fabioh8010 Jul 4, 2024
09f2465
Revert "Adjust logic"
fabioh8010 Jul 5, 2024
b99cc27
Remove some @ts-expect-error
fabioh8010 Jul 5, 2024
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7 changes: 3 additions & 4 deletions lib/useOnyx.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -159,12 +159,11 @@ function useOnyx<TKey extends OnyxKey, TReturnValue = OnyxValue<TKey>>(key: TKey
newFetchStatus = 'loaded';
}

// We do a deep equality check if we are subscribed to a collection key and `selector` is defined,
// since each `OnyxUtils.tryGetCachedValue()` call will generate a plain new collection object with new records as well,
// all of them created using the `selector` function.
// We do a deep equality check if `selector` is defined, since each `OnyxUtils.tryGetCachedValue()` call will
// generate a plain new primitive/object/array that was created using the `selector` function.
// For the other cases we will only deal with object reference checks, so just a shallow equality check is enough.
let areValuesEqual: boolean;
if (OnyxUtils.isCollectionKey(key) && selectorRef.current) {
if (selectorRef.current) {
areValuesEqual = deepEqual(previousValueRef.current ?? undefined, newValueRef.current);
} else {
areValuesEqual = shallowEqual(previousValueRef.current ?? undefined, newValueRef.current);
Expand Down
34 changes: 27 additions & 7 deletions tests/unit/useOnyxTest.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ import type {OnyxEntry} from '../../lib';
import Onyx, {useOnyx} from '../../lib';
import waitForPromisesToResolve from '../utils/waitForPromisesToResolve';
import StorageMock from '../../lib/storage';
import type GenericCollection from '../utils/GenericCollection';

const ONYXKEYS = {
TEST_KEY: 'test',
Expand Down Expand Up @@ -163,12 +164,11 @@ describe('useOnyx', () => {
});

it('should return selected data from a collection key', async () => {
// @ts-expect-error bypass
Onyx.mergeCollection(ONYXKEYS.COLLECTION.TEST_KEY, {
[`${ONYXKEYS.COLLECTION.TEST_KEY}entry1`]: {id: 'entry1_id', name: 'entry1_name'},
[`${ONYXKEYS.COLLECTION.TEST_KEY}entry2`]: {id: 'entry2_id', name: 'entry2_name'},
[`${ONYXKEYS.COLLECTION.TEST_KEY}entry3`]: {id: 'entry3_id', name: 'entry3_name'},
});
} as GenericCollection);

const {result} = renderHook(() =>
useOnyx(ONYXKEYS.COLLECTION.TEST_KEY, {
Expand Down Expand Up @@ -198,30 +198,50 @@ describe('useOnyx', () => {
it('should not change selected data if a property outside that data was changed', async () => {
Onyx.set(ONYXKEYS.TEST_KEY, {id: 'test_id', name: 'test_name'});

const {result} = renderHook(() =>
// primitive
const {result: primitiveResult} = renderHook(() =>
useOnyx(ONYXKEYS.TEST_KEY, {
// @ts-expect-error bypass
selector: (entry: OnyxEntry<{id: string; name: string}>) => entry?.id,
}),
);

// object
const {result: objectResult} = renderHook(() =>
useOnyx(ONYXKEYS.TEST_KEY, {
// @ts-expect-error bypass
selector: (entry: OnyxEntry<{id: string; name: string}>) => ({id: entry?.id}),
}),
);

// array
const {result: arrayResult} = renderHook(() =>
useOnyx(ONYXKEYS.TEST_KEY, {
// @ts-expect-error bypass
selector: (entry: OnyxEntry<{id: string; name: string}>) => [{id: entry?.id}],
}),
);

await act(async () => waitForPromisesToResolve());

const oldResult = result.current;
const oldPrimitiveResult = primitiveResult.current;
const oldObjectResult = objectResult.current;
const oldArrayResult = arrayResult.current;

await act(async () => Onyx.merge(ONYXKEYS.TEST_KEY, {name: 'test_name_changed'}));

// must be the same reference
expect(oldResult).toBe(result.current);
expect(oldPrimitiveResult).toBe(primitiveResult.current);
expect(oldObjectResult).toBe(objectResult.current);
expect(oldArrayResult).toBe(arrayResult.current);
});

it('should not change selected collection data if a property outside that data was changed', async () => {
// @ts-expect-error bypass
Onyx.mergeCollection(ONYXKEYS.COLLECTION.TEST_KEY, {
[`${ONYXKEYS.COLLECTION.TEST_KEY}entry1`]: {id: 'entry1_id', name: 'entry1_name'},
[`${ONYXKEYS.COLLECTION.TEST_KEY}entry2`]: {id: 'entry2_id', name: 'entry2_name'},
[`${ONYXKEYS.COLLECTION.TEST_KEY}entry3`]: {id: 'entry3_id', name: 'entry3_name'},
});
} as GenericCollection);

const {result} = renderHook(() =>
useOnyx(ONYXKEYS.COLLECTION.TEST_KEY, {
Expand Down
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