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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import "Firestore/Source/Remote/FSTRemoteEvent.h"
#import <XCTest/XCTest.h>
#import "Firestore/Source/Core/FSTQuery.h"
#import "Firestore/Source/Local/FSTQueryData.h"
#import "Firestore/Source/Model/FSTDocument.h"
#import "Firestore/Source/Model/FSTDocumentKey.h"
#import "Firestore/Source/Remote/FSTExistenceFilter.h"
#import "Firestore/Source/Remote/FSTWatchChange.h"
#include "Firestore/core/src/firebase/firestore/model/document_key.h"
#import "Firestore/Example/Tests/Remote/FSTWatchChange+Testing.h"
#import "Firestore/Example/Tests/Util/FSTHelpers.h"
#include "Firestore/core/test/firebase/firestore/testutil/testutil.h"
namespace testutil = firebase::firestore::testutil;
using firebase::firestore::model::DocumentKey;
using firebase::firestore::model::DocumentKeySet;
using firebase::firestore::model::SnapshotVersion;
NS_ASSUME_NONNULL_BEGIN
@interface FSTRemoteEventTests : XCTestCase
@end
@implementation FSTRemoteEventTests {
NSData *_resumeToken1;
NSMutableDictionary<NSNumber *, NSNumber *> *_noOutstandingResponses;
FSTTestTargetMetadataProvider *_targetMetadataProvider;
}
- (void)setUp {
_resumeToken1 = [@"resume1" dataUsingEncoding:NSUTF8StringEncoding];
_noOutstandingResponses = [NSMutableDictionary dictionary];
_targetMetadataProvider = [FSTTestTargetMetadataProvider new];
}
/**
* Creates a map with query data for the provided target IDs. All targets are considered active
* and query a collection named "coll".
*/
- (NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *)queryDataForTargets:
(NSArray<FSTBoxedTargetID *> *)targetIDs {
NSMutableDictionary<FSTBoxedTargetID *, FSTQueryData *> *targets =
[NSMutableDictionary dictionary];
for (FSTBoxedTargetID *targetID in targetIDs) {
FSTQuery *query = FSTTestQuery("coll");
targets[targetID] = [[FSTQueryData alloc] initWithQuery:query
targetID:targetID.intValue
listenSequenceNumber:0
purpose:FSTQueryPurposeListen];
}
return targets;
}
/**
* Creates a map with query data for the provided target IDs. All targets are marked as limbo
* queries for the document at "coll/limbo".
*/
- (NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *)queryDataForLimboTargets:
(NSArray<FSTBoxedTargetID *> *)targetIDs {
NSMutableDictionary<FSTBoxedTargetID *, FSTQueryData *> *targets =
[NSMutableDictionary dictionary];
for (FSTBoxedTargetID *targetID in targetIDs) {
FSTQuery *query = FSTTestQuery("coll/limbo");
targets[targetID] = [[FSTQueryData alloc] initWithQuery:query
targetID:targetID.intValue
listenSequenceNumber:0
purpose:FSTQueryPurposeLimboResolution];
}
return targets;
}
/**
* Creates an aggregator initialized with the set of provided FSTWatchChanges. Tests can add further
* changes via `handleDocumentChange`, `handleTargetChange` and `handleExistenceFilterChange`.
*
* @param snapshotVersion The version at which to create the remote event. This corresponds to the
* snapshot version provided by a NO_CHANGE event.
* @param targetMap A map of query data for all active targets. The map must include an entry for
* every target referenced by any of the watch changes.
* @param outstandingResponses The number of outstanding ACKs a target has to receive before it is
* considered active, or `_noOutstandingResponses` if all targets are already active.
* @param existingKeys The set of documents that are considered synced with the test targets as
* part of a previous listen. To modify this set during test execution, invoke
* `[_targetMetadataProvider setSyncedKeys:forQueryData:]`.
* @param watchChanges The watch changes to apply before returning the aggregator. Supported
* changes are FSTDocumentWatchChange and FSTWatchTargetChange.
*/
- (FSTWatchChangeAggregator *)
aggregatorWithTargetMap:(NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *)targetMap
outstandingResponses:
(nullable NSDictionary<FSTBoxedTargetID *, NSNumber *> *)outstandingResponses
existingKeys:(DocumentKeySet)existingKeys
changes:(NSArray<FSTWatchChange *> *)watchChanges {
FSTWatchChangeAggregator *aggregator =
[[FSTWatchChangeAggregator alloc] initWithTargetMetadataProvider:_targetMetadataProvider];
NSMutableArray<FSTBoxedTargetID *> *targetIDs = [NSMutableArray array];
[targetMap enumerateKeysAndObjectsUsingBlock:^(FSTBoxedTargetID *targetID,
FSTQueryData *queryData, BOOL *stop) {
[targetIDs addObject:targetID];
[_targetMetadataProvider setSyncedKeys:existingKeys forQueryData:queryData];
}];
[outstandingResponses
enumerateKeysAndObjectsUsingBlock:^(FSTBoxedTargetID *targetID, NSNumber *count, BOOL *stop) {
for (int i = 0; i < count.intValue; ++i) {
[aggregator recordTargetRequest:targetID];
}
}];
for (FSTWatchChange *change in watchChanges) {
if ([change isKindOfClass:[FSTDocumentWatchChange class]]) {
[aggregator handleDocumentChange:(FSTDocumentWatchChange *)change];
} else if ([change isKindOfClass:[FSTWatchTargetChange class]]) {
[aggregator handleTargetChange:(FSTWatchTargetChange *)change];
} else {
HARD_ASSERT("Encountered unexpected type of FSTWatchChange");
}
}
[aggregator handleTargetChange:[[FSTWatchTargetChange alloc]
initWithState:FSTWatchTargetChangeStateNoChange
targetIDs:targetIDs
resumeToken:_resumeToken1
cause:nil]];
return aggregator;
}
/**
* Creates a single remote event that includes target changes for all provided FSTWatchChanges.
*
* @param snapshotVersion The version at which to create the remote event. This corresponds to the
* snapshot version provided by the NO_CHANGE event.
* @param targetMap A map of query data for all active targets. The map must include an entry for
* every target referenced by any of the watch changes.
* @param outstandingResponses The number of outstanding ACKs a target has to receive before it is
* considered active, or `_noOutstandingResponses` if all targets are already active.
* @param existingKeys The set of documents that are considered synced with the test targets as
* part of a previous listen.
* @param watchChanges The watch changes to apply before creating the remote event. Supported
* changes are FSTDocumentWatchChange and FSTWatchTargetChange.
*/
- (FSTRemoteEvent *)
remoteEventAtSnapshotVersion:(FSTTestSnapshotVersion)snapshotVersion
targetMap:(NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *)targetMap
outstandingResponses:
(nullable NSDictionary<FSTBoxedTargetID *, NSNumber *> *)outstandingResponses
existingKeys:(DocumentKeySet)existingKeys
changes:(NSArray<FSTWatchChange *> *)watchChanges {
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:outstandingResponses
existingKeys:existingKeys
changes:watchChanges];
return [aggregator remoteEventAtSnapshotVersion:testutil::Version(snapshotVersion)];
}
- (void)testWillAccumulateDocumentAddedAndRemovedEvents {
// The target map that contains an entry for every target in this test. If a target ID is omitted,
// the target is considered inactive and FSTTestTargetMetadataProvider will fail on access.
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForTargets:@[ @1, @2, @3, @4, @5, @6 ]];
FSTDocument *existingDoc = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1, @2, @3 ]
removedTargetIDs:@[ @4, @5, @6 ]
documentKey:existingDoc.key
document:existingDoc];
FSTDocument *newDoc = FSTTestDoc("docs/2", 2, @{ @"value" : @2 }, NO);
FSTWatchChange *change2 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1, @4 ]
removedTargetIDs:@[ @2, @6 ]
documentKey:newDoc.key
document:newDoc];
// Create a remote event that includes both `change1` and `change2` as well as a NO_CHANGE event
// with the default resume token (`_resumeToken1`).
// As `existingDoc` is provided as an existing key, any updates to this document will be treated
// as modifications rather than adds.
FSTRemoteEvent *event = [self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet{existingDoc.key}
changes:@[ change1, change2 ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 2);
XCTAssertEqualObjects(event.documentUpdates.at(existingDoc.key), existingDoc);
XCTAssertEqualObjects(event.documentUpdates.at(newDoc.key), newDoc);
// 'change1' and 'change2' affect six different targets
XCTAssertEqual(event.targetChanges.size(), 6);
FSTTargetChange *targetChange1 =
FSTTestTargetChange(DocumentKeySet{newDoc.key}, DocumentKeySet{existingDoc.key},
DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
FSTTargetChange *targetChange2 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{existingDoc.key}, DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(2), targetChange2);
FSTTargetChange *targetChange3 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{existingDoc.key}, DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(3), targetChange3);
FSTTargetChange *targetChange4 =
FSTTestTargetChange(DocumentKeySet{newDoc.key}, DocumentKeySet{},
DocumentKeySet{existingDoc.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(4), targetChange4);
FSTTargetChange *targetChange5 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{existingDoc.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(5), targetChange5);
FSTTargetChange *targetChange6 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{existingDoc.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(6), targetChange6);
}
- (void)testWillIgnoreEventsForPendingTargets {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
FSTWatchChange *change2 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateRemoved
targetIDs:@[ @1 ]
cause:nil];
FSTWatchChange *change3 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateAdded
targetIDs:@[ @1 ]
cause:nil];
FSTDocument *doc2 = FSTTestDoc("docs/2", 2, @{ @"value" : @2 }, NO);
FSTWatchChange *change4 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc2.key
document:doc2];
// We're waiting for the unwatch and watch ack
NSDictionary<NSNumber *, NSNumber *> *outstandingResponses = @{ @1 : @2 };
FSTRemoteEvent *event =
[self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:outstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ change1, change2, change3, change4 ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
// doc1 is ignored because it was part of an inactive target, but doc2 is in the changes
// because it become active.
XCTAssertEqual(event.documentUpdates.size(), 1);
XCTAssertEqualObjects(event.documentUpdates.at(doc2.key), doc2);
XCTAssertEqual(event.targetChanges.size(), 1);
}
- (void)testWillIgnoreEventsForRemovedTargets {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[]];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
FSTWatchChange *change2 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateRemoved
targetIDs:@[ @1 ]
cause:nil];
// We're waiting for the unwatch ack
NSDictionary<NSNumber *, NSNumber *> *outstandingResponses = @{ @1 : @1 };
FSTRemoteEvent *event = [self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:outstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ change1, change2 ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
// doc1 is ignored because it was part of an inactive target
XCTAssertEqual(event.documentUpdates.size(), 0);
// Target 1 is ignored because it was removed
XCTAssertEqual(event.targetChanges.size(), 0);
}
- (void)testWillKeepResetMappingEvenWithUpdates {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
// Reset stream, ignoring doc1
FSTWatchChange *change2 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateReset
targetIDs:@[ @1 ]
cause:nil];
// Add doc2, doc3
FSTDocument *doc2 = FSTTestDoc("docs/2", 2, @{ @"value" : @2 }, NO);
FSTWatchChange *change3 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc2.key
document:doc2];
FSTDocument *doc3 = FSTTestDoc("docs/3", 3, @{ @"value" : @3 }, NO);
FSTWatchChange *change4 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc3.key
document:doc3];
// Remove doc2 again, should not show up in reset mapping
FSTWatchChange *change5 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[]
removedTargetIDs:@[ @1 ]
documentKey:doc2.key
document:doc2];
FSTRemoteEvent *event =
[self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet{doc1.key}
changes:@[ change1, change2, change3, change4, change5 ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 3);
XCTAssertEqualObjects(event.documentUpdates.at(doc1.key), doc1);
XCTAssertEqualObjects(event.documentUpdates.at(doc2.key), doc2);
XCTAssertEqualObjects(event.documentUpdates.at(doc3.key), doc3);
XCTAssertEqual(event.targetChanges.size(), 1);
// Only doc3 is part of the new mapping
FSTTargetChange *expectedChange = FSTTestTargetChange(
DocumentKeySet{doc3.key}, DocumentKeySet{}, DocumentKeySet{doc1.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), expectedChange);
}
- (void)testWillHandleSingleReset {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
// Reset target
FSTWatchTargetChange *change =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateReset
targetIDs:@[ @1 ]
cause:nil];
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[]];
[aggregator handleTargetChange:change];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 0);
XCTAssertEqual(event.targetChanges.size(), 1);
// Reset mapping is empty
FSTTargetChange *expectedChange =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, [NSData data], NO);
XCTAssertEqualObjects(event.targetChanges.at(1), expectedChange);
}
- (void)testWillHandleTargetAddAndRemovalInSameBatch {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForTargets:@[ @1, @2 ]];
FSTDocument *doc1a = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[ @2 ]
documentKey:doc1a.key
document:doc1a];
FSTDocument *doc1b = FSTTestDoc("docs/1", 1, @{ @"value" : @2 }, NO);
FSTWatchChange *change2 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @2 ]
removedTargetIDs:@[ @1 ]
documentKey:doc1b.key
document:doc1b];
FSTRemoteEvent *event = [self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet{doc1a.key}
changes:@[ change1, change2 ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 1);
XCTAssertEqualObjects(event.documentUpdates.at(doc1b.key), doc1b);
XCTAssertEqual(event.targetChanges.size(), 2);
FSTTargetChange *targetChange1 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{doc1b.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
FSTTargetChange *targetChange2 = FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{doc1b.key},
DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(2), targetChange2);
}
- (void)testTargetCurrentChangeWillMarkTheTargetCurrent {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
FSTWatchChange *change = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @1 ]
resumeToken:_resumeToken1];
FSTRemoteEvent *event = [self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ change ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 0);
XCTAssertEqual(event.targetChanges.size(), 1);
FSTTargetChange *targetChange =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, _resumeToken1, YES);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange);
}
- (void)testTargetAddedChangeWillResetPreviousState {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForTargets:@[ @1, @3 ]];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1, @3 ]
removedTargetIDs:@[ @2 ]
documentKey:doc1.key
document:doc1];
FSTWatchChange *change2 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @1, @2, @3 ]
resumeToken:_resumeToken1];
FSTWatchChange *change3 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateRemoved
targetIDs:@[ @1 ]
cause:nil];
FSTWatchChange *change4 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateRemoved
targetIDs:@[ @2 ]
cause:nil];
FSTWatchChange *change5 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateAdded
targetIDs:@[ @1 ]
cause:nil];
FSTDocument *doc2 = FSTTestDoc("docs/2", 2, @{ @"value" : @2 }, NO);
FSTWatchChange *change6 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[ @3 ]
documentKey:doc2.key
document:doc2];
NSDictionary<NSNumber *, NSNumber *> *outstandingResponses = @{ @1 : @2, @2 : @1 };
FSTRemoteEvent *event =
[self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:outstandingResponses
existingKeys:DocumentKeySet{doc2.key}
changes:@[ change1, change2, change3, change4, change5, change6 ]];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 2);
XCTAssertEqualObjects(event.documentUpdates.at(doc1.key), doc1);
XCTAssertEqualObjects(event.documentUpdates.at(doc2.key), doc2);
// target 1 and 3 are affected (1 because of re-add), target 2 is not because of remove
XCTAssertEqual(event.targetChanges.size(), 2);
// doc1 was before the remove, so it does not show up in the mapping.
// Current was before the remove.
FSTTargetChange *targetChange1 = FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{doc2.key},
DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
// Doc1 was before the remove
// Current was before the remove
FSTTargetChange *targetChange3 = FSTTestTargetChange(
DocumentKeySet{doc1.key}, DocumentKeySet{}, DocumentKeySet{doc2.key}, _resumeToken1, YES);
XCTAssertEqualObjects(event.targetChanges.at(3), targetChange3);
}
- (void)testNoChangeWillStillMarkTheAffectedTargets {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[]];
FSTWatchTargetChange *change =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateNoChange
targetIDs:@[ @1 ]
resumeToken:_resumeToken1];
[aggregator handleTargetChange:change];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 0);
XCTAssertEqual(event.targetChanges.size(), 1);
FSTTargetChange *targetChange =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange);
}
- (void)testExistenceFilterMismatchClearsTarget {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForTargets:@[ @1, @2 ]];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
FSTDocument *doc2 = FSTTestDoc("docs/2", 2, @{ @"value" : @2 }, NO);
FSTWatchChange *change2 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc2.key
document:doc2];
FSTWatchChange *change3 = [FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @1 ]
resumeToken:_resumeToken1];
FSTWatchChangeAggregator *aggregator =
[self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet{doc1.key, doc2.key}
changes:@[ change1, change2, change3 ]];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 2);
XCTAssertEqualObjects(event.documentUpdates.at(doc1.key), doc1);
XCTAssertEqualObjects(event.documentUpdates.at(doc2.key), doc2);
XCTAssertEqual(event.targetChanges.size(), 2);
FSTTargetChange *targetChange1 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{doc1.key, doc2.key}, DocumentKeySet{}, _resumeToken1, YES);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
FSTTargetChange *targetChange2 =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(2), targetChange2);
// The existence filter mismatch will remove the document from target 1,
// but not synthesize a document delete.
FSTExistenceFilterWatchChange *change4 =
[FSTExistenceFilterWatchChange changeWithFilter:[FSTExistenceFilter filterWithCount:1]
targetID:1];
[aggregator handleExistenceFilter:change4];
event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(4)];
FSTTargetChange *targetChange3 = FSTTestTargetChange(
DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{doc1.key, doc2.key}, [NSData data], NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange3);
XCTAssertEqual(event.targetChanges.size(), 1);
XCTAssertEqual(event.targetMismatches.size(), 1);
XCTAssertEqual(event.documentUpdates.size(), 0);
}
- (void)testExistenceFilterMismatchRemovesCurrentChanges {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[]];
FSTWatchTargetChange *markCurrent =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @1 ]
resumeToken:_resumeToken1];
[aggregator handleTargetChange:markCurrent];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTDocumentWatchChange *addDoc = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
[aggregator handleDocumentChange:addDoc];
// The existence filter mismatch will remove the document from target 1, but not synthesize a
// document delete.
FSTExistenceFilterWatchChange *existenceFilter =
[FSTExistenceFilterWatchChange changeWithFilter:[FSTExistenceFilter filterWithCount:0]
targetID:1];
[aggregator handleExistenceFilter:existenceFilter];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 1);
XCTAssertEqual(event.targetMismatches.size(), 1);
XCTAssertEqualObjects(event.documentUpdates.at(doc1.key), doc1);
XCTAssertEqual(event.targetChanges.size(), 1);
FSTTargetChange *targetChange1 =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, [NSData data], NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
}
- (void)testDocumentUpdate {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap = [self queryDataForTargets:@[ @1 ]];
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{ @"value" : @1 }, NO);
FSTWatchChange *change1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
FSTDocument *doc2 = FSTTestDoc("docs/2", 2, @{ @"value" : @2 }, NO);
FSTWatchChange *change2 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc2.key
document:doc2];
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ change1, change2 ]];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 2);
XCTAssertEqualObjects(event.documentUpdates.at(doc1.key), doc1);
XCTAssertEqualObjects(event.documentUpdates.at(doc2.key), doc2);
[_targetMetadataProvider setSyncedKeys:DocumentKeySet{doc1.key, doc2.key}
forQueryData:targetMap[@1]];
FSTDeletedDocument *deletedDoc1 =
[FSTDeletedDocument documentWithKey:doc1.key version:testutil::Version(3)];
FSTDocumentWatchChange *change3 =
[[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[]
removedTargetIDs:@[ @1 ]
documentKey:deletedDoc1.key
document:deletedDoc1];
[aggregator handleDocumentChange:change3];
FSTDocument *updatedDoc2 = FSTTestDoc("docs/2", 3, @{ @"value" : @2 }, NO);
FSTDocumentWatchChange *change4 =
[[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:updatedDoc2.key
document:updatedDoc2];
[aggregator handleDocumentChange:change4];
FSTDocument *doc3 = FSTTestDoc("docs/3", 3, @{ @"value" : @3 }, NO);
FSTDocumentWatchChange *change5 =
[[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc3.key
document:doc3];
[aggregator handleDocumentChange:change5];
event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.snapshotVersion, testutil::Version(3));
XCTAssertEqual(event.documentUpdates.size(), 3);
// doc1 is replaced
XCTAssertEqualObjects(event.documentUpdates.at(doc1.key), deletedDoc1);
// doc2 is updated
XCTAssertEqualObjects(event.documentUpdates.at(doc2.key), updatedDoc2);
// doc3 is new
XCTAssertEqualObjects(event.documentUpdates.at(doc3.key), doc3);
// Target is unchanged
XCTAssertEqual(event.targetChanges.size(), 1);
FSTTargetChange *targetChange =
FSTTestTargetChange(DocumentKeySet{doc3.key}, DocumentKeySet{updatedDoc2.key},
DocumentKeySet{deletedDoc1.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange);
}
- (void)testResumeTokensHandledPerTarget {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForTargets:@[ @1, @2 ]];
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[]];
FSTWatchTargetChange *change1 =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @1 ]
resumeToken:_resumeToken1];
[aggregator handleTargetChange:change1];
NSData *resumeToken2 = [@"resume2" dataUsingEncoding:NSUTF8StringEncoding];
FSTWatchTargetChange *change2 =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @2 ]
resumeToken:resumeToken2];
[aggregator handleTargetChange:change2];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.targetChanges.size(), 2);
FSTTargetChange *targetChange1 =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, _resumeToken1, YES);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
FSTTargetChange *targetChange2 =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, resumeToken2, YES);
XCTAssertEqualObjects(event.targetChanges.at(2), targetChange2);
}
- (void)testLastResumeTokenWins {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForTargets:@[ @1, @2 ]];
FSTWatchChangeAggregator *aggregator = [self aggregatorWithTargetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[]];
FSTWatchTargetChange *change1 =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent
targetIDs:@[ @1 ]
resumeToken:_resumeToken1];
[aggregator handleTargetChange:change1];
NSData *resumeToken2 = [@"resume2" dataUsingEncoding:NSUTF8StringEncoding];
FSTWatchTargetChange *change2 =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateNoChange
targetIDs:@[ @1 ]
resumeToken:resumeToken2];
[aggregator handleTargetChange:change2];
NSData *resumeToken3 = [@"resume3" dataUsingEncoding:NSUTF8StringEncoding];
FSTWatchTargetChange *change3 =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateNoChange
targetIDs:@[ @2 ]
resumeToken:resumeToken3];
[aggregator handleTargetChange:change3];
FSTRemoteEvent *event = [aggregator remoteEventAtSnapshotVersion:testutil::Version(3)];
XCTAssertEqual(event.targetChanges.size(), 2);
FSTTargetChange *targetChange1 =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, resumeToken2, YES);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange1);
FSTTargetChange *targetChange2 =
FSTTestTargetChange(DocumentKeySet{}, DocumentKeySet{}, DocumentKeySet{}, resumeToken3, NO);
XCTAssertEqualObjects(event.targetChanges.at(2), targetChange2);
}
- (void)testSynthesizeDeletes {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForLimboTargets:@[ @1 ]];
DocumentKey limboKey = testutil::Key("coll/limbo");
FSTWatchChange *resolveLimboTarget =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent targetIDs:@[ @1 ]];
FSTRemoteEvent *event = [self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ resolveLimboTarget ]];
FSTDeletedDocument *expected =
[FSTDeletedDocument documentWithKey:limboKey version:event.snapshotVersion];
XCTAssertEqualObjects(event.documentUpdates.at(limboKey), expected);
XCTAssertTrue(event.limboDocumentChanges.contains(limboKey));
}
- (void)testDoesntSynthesizeDeletesForWrongState {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForLimboTargets:@[ @1 ]];
FSTWatchChange *wrongState =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateNoChange targetIDs:@[ @1 ]];
FSTRemoteEvent *event = [self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ wrongState ]];
XCTAssertEqual(event.documentUpdates.size(), 0);
XCTAssertEqual(event.limboDocumentChanges.size(), 0);
}
- (void)testDoesntSynthesizeDeletesForExistingDoc {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForLimboTargets:@[ @3 ]];
FSTWatchChange *hasDocument =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent targetIDs:@[ @3 ]];
FSTRemoteEvent *event =
[self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet{FSTTestDocKey(@"coll/limbo")}
changes:@[ hasDocument ]];
XCTAssertEqual(event.documentUpdates.size(), 0);
XCTAssertEqual(event.limboDocumentChanges.size(), 0);
}
- (void)testSeparatesDocumentUpdates {
NSDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[self queryDataForLimboTargets:@[ @1 ]];
FSTDocument *newDoc = FSTTestDoc("docs/new", 1, @{@"key" : @"value"}, NO);
FSTWatchChange *newDocChange = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:newDoc.key
document:newDoc];
FSTDocument *existingDoc = FSTTestDoc("docs/existing", 1, @{@"some" : @"data"}, NO);
FSTWatchChange *existingDocChange =
[[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:existingDoc.key
document:existingDoc];
FSTDeletedDocument *deletedDoc = FSTTestDeletedDoc("docs/deleted", 1);
FSTWatchChange *deletedDocChange =
[[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[]
removedTargetIDs:@[ @1 ]
documentKey:deletedDoc.key
document:deletedDoc];
FSTDeletedDocument *missingDoc = FSTTestDeletedDoc("docs/missing", 1);
FSTWatchChange *missingDocChange =
[[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[]
removedTargetIDs:@[ @1 ]
documentKey:missingDoc.key
document:missingDoc];
FSTRemoteEvent *event = [self
remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet{existingDoc.key, deletedDoc.key}
changes:@[
newDocChange, existingDocChange, deletedDocChange, missingDocChange
]];
FSTTargetChange *targetChange =
FSTTestTargetChange(DocumentKeySet{newDoc.key}, DocumentKeySet{existingDoc.key},
DocumentKeySet{deletedDoc.key}, _resumeToken1, NO);
XCTAssertEqualObjects(event.targetChanges.at(1), targetChange);
}
- (void)testTracksLimboDocuments {
NSMutableDictionary<FSTBoxedTargetID *, FSTQueryData *> *targetMap =
[NSMutableDictionary dictionary];
[targetMap addEntriesFromDictionary:[self queryDataForTargets:@[ @1 ]]];
[targetMap addEntriesFromDictionary:[self queryDataForLimboTargets:@[ @2 ]]];
// Add 3 docs: 1 is limbo and non-limbo, 2 is limbo-only, 3 is non-limbo
FSTDocument *doc1 = FSTTestDoc("docs/1", 1, @{@"key" : @"value"}, NO);
FSTDocument *doc2 = FSTTestDoc("docs/2", 1, @{@"key" : @"value"}, NO);
FSTDocument *doc3 = FSTTestDoc("docs/3", 1, @{@"key" : @"value"}, NO);
// Target 2 is a limbo target
FSTWatchChange *docChange1 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1, @2 ]
removedTargetIDs:@[]
documentKey:doc1.key
document:doc1];
FSTWatchChange *docChange2 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @2 ]
removedTargetIDs:@[]
documentKey:doc2.key
document:doc2];
FSTWatchChange *docChange3 = [[FSTDocumentWatchChange alloc] initWithUpdatedTargetIDs:@[ @1 ]
removedTargetIDs:@[]
documentKey:doc3.key
document:doc3];
FSTWatchChange *targetsChange =
[FSTWatchTargetChange changeWithState:FSTWatchTargetChangeStateCurrent targetIDs:@[ @1, @2 ]];
FSTRemoteEvent *event =
[self remoteEventAtSnapshotVersion:3
targetMap:targetMap
outstandingResponses:_noOutstandingResponses
existingKeys:DocumentKeySet {}
changes:@[ docChange1, docChange2, docChange3, targetsChange ]];
DocumentKeySet limboDocChanges = event.limboDocumentChanges;
// Doc1 is in both limbo and non-limbo targets, therefore not tracked as limbo
XCTAssertFalse(limboDocChanges.contains(doc1.key));
// Doc2 is only in the limbo target, so is tracked as a limbo document
XCTAssertTrue(limboDocChanges.contains(doc2.key));
// Doc3 is only in the non-limbo target, therefore not tracked as limbo
XCTAssertFalse(limboDocChanges.contains(doc3.key));
}
@end
NS_ASSUME_NONNULL_END
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