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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 FirebaseFirestore;
#import <XCTest/XCTest.h>
#import "Firestore/Example/Tests/Util/FSTIntegrationTestCase.h"
#import "Firestore/Source/API/FIRFirestore+Internal.h"
#import "Firestore/Source/Core/FSTFirestoreClient.h"
@interface FIRListenerRegistrationTests : FSTIntegrationTestCase
@end
@implementation FIRListenerRegistrationTests
- (void)testCanBeRemoved {
FIRCollectionReference *collectionRef = [self collectionRef];
FIRDocumentReference *docRef = [collectionRef documentWithAutoID];
__block int callbacks = 0;
id<FIRListenerRegistration> one = [collectionRef
addSnapshotListener:^(FIRQuerySnapshot *_Nullable snapshot, NSError *_Nullable error) {
XCTAssertNil(error);
callbacks++;
}];
id<FIRListenerRegistration> two = [collectionRef
addSnapshotListener:^(FIRQuerySnapshot *_Nullable snapshot, NSError *_Nullable error) {
XCTAssertNil(error);
callbacks++;
}];
// Wait for initial events
[self waitUntil:^BOOL {
return callbacks == 2;
}];
// Trigger new events
[self writeDocumentRef:docRef data:@{@"foo" : @"bar"}];
// Write events should have triggered
XCTAssertEqual(4, callbacks);
// No more events should occur
[one remove];
[two remove];
[self writeDocumentRef:docRef data:@{@"foo" : @"new-bar"}];
// Assert no further events occurred
XCTAssertEqual(4, callbacks);
}
- (void)testCanBeRemovedTwice {
FIRCollectionReference *collectionRef = [self collectionRef];
FIRDocumentReference *docRef = [collectionRef documentWithAutoID];
id<FIRListenerRegistration> one = [collectionRef
addSnapshotListener:^(FIRQuerySnapshot *_Nullable snapshot, NSError *_Nullable error){
}];
id<FIRListenerRegistration> two = [docRef
addSnapshotListener:^(FIRDocumentSnapshot *_Nullable snapshot, NSError *_Nullable error){
}];
[one remove];
[one remove];
[two remove];
[two remove];
}
- (void)testCanBeRemovedIndependently {
FIRCollectionReference *collectionRef = [self collectionRef];
FIRDocumentReference *docRef = [collectionRef documentWithAutoID];
__block int callbacksOne = 0;
__block int callbacksTwo = 0;
id<FIRListenerRegistration> one = [collectionRef
addSnapshotListener:^(FIRQuerySnapshot *_Nullable snapshot, NSError *_Nullable error) {
XCTAssertNil(error);
callbacksOne++;
}];
id<FIRListenerRegistration> two = [collectionRef
addSnapshotListener:^(FIRQuerySnapshot *_Nullable snapshot, NSError *_Nullable error) {
XCTAssertNil(error);
callbacksTwo++;
}];
// Wait for initial events
[self waitUntil:^BOOL {
return callbacksOne == 1 && callbacksTwo == 1;
}];
// Trigger new events
[self writeDocumentRef:docRef data:@{@"foo" : @"bar"}];
// Write events should have triggered
XCTAssertEqual(2, callbacksOne);
XCTAssertEqual(2, callbacksTwo);
// Should leave "two" unaffected
[one remove];
[self writeDocumentRef:docRef data:@{@"foo" : @"new-bar"}];
// Assert only events for "two" actually occurred
XCTAssertEqual(2, callbacksOne);
XCTAssertEqual(3, callbacksTwo);
[self writeDocumentRef:docRef data:@{@"foo" : @"new-bar"}];
// No more events should occur
[two remove];
}
- (void)testWatchSurvivesNetworkDisconnect {
XCTestExpectation *testExpectiation =
[self expectationWithDescription:@"testWatchSurvivesNetworkDisconnect"];
FIRCollectionReference *collectionRef = [self collectionRef];
FIRDocumentReference *docRef = [collectionRef documentWithAutoID];
FIRFirestore *firestore = collectionRef.firestore;
FIRQueryListenOptions *options = [[[FIRQueryListenOptions options]
includeDocumentMetadataChanges:YES] includeQueryMetadataChanges:YES];
[collectionRef addSnapshotListenerWithOptions:options
listener:^(FIRQuerySnapshot *snapshot, NSError *error) {
XCTAssertNil(error);
if (!snapshot.empty && !snapshot.metadata.fromCache) {
[testExpectiation fulfill];
}
}];
[firestore.client disableNetworkWithCompletion:^(NSError *error) {
XCTAssertNil(error);
[docRef setData:@{@"foo" : @"bar"}];
[firestore.client enableNetworkWithCompletion:^(NSError *error) {
XCTAssertNil(error);
}];
}];
[self awaitExpectations];
}
@end
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