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RealmTests.mm
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RealmTests.mm
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////////////////////////////////////////////////////////////////////////////
//
// Copyright 2014 Realm Inc.
//
// 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 "RLMTestCase.h"
#import "RLMObjectSchema_Private.hpp"
#import "RLMRealmConfiguration_Private.hpp"
#import "RLMRealmUtil.hpp"
#import "RLMRealm_Dynamic.h"
#import "RLMRealm_Private.hpp"
#import "RLMSchema_Private.h"
#import <mach/mach_init.h>
#import <mach/vm_map.h>
#import <sys/resource.h>
#import <thread>
#import <unordered_set>
#import <realm/util/file.hpp>
#import <realm/db_options.hpp>
@interface RLMRealm ()
+ (BOOL)isCoreDebug;
@end
@interface RLMObjectSchema (Private)
+ (instancetype)schemaForObjectClass:(Class)objectClass;
@property (nonatomic, readwrite, assign) Class objectClass;
@end
@interface RLMSchema (Private)
@property (nonatomic, readwrite, copy) NSArray *objectSchema;
@end
@interface RealmTests : RLMTestCase
@end
@implementation RealmTests
- (void)deleteFiles {
[super deleteFiles];
for (NSString *realmPath in self.pathsFor100Realms) {
[self deleteRealmFileAtURL:[NSURL fileURLWithPath:realmPath]];
}
}
#pragma mark - Opening Realms
- (void)testOpeningInvalidPathThrows {
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.fileURL = [NSURL fileURLWithPath:@"/dev/null/foo"];
RLMAssertThrowsWithCodeMatching([RLMRealm realmWithConfiguration:config error:nil], RLMErrorFileAccess);
}
- (void)testPathCannotBeBothInMemoryAndRegularDurability {
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.inMemoryIdentifier = @"identifier";
RLMRealm *inMemoryRealm = [RLMRealm realmWithConfiguration:config error:nil];
// make sure we can't open disk-realm at same path
config.fileURL = [NSURL fileURLWithPath:@(inMemoryRealm.configuration.config.path.c_str())];
NSError *error; // passing in a reference to assert that this error can't be catched!
RLMAssertThrowsWithReasonMatching([RLMRealm realmWithConfiguration:config error:&error], @"Realm at path '.*' already opened with different inMemory settings");
}
- (void)testRealmWithPathUsesDefaultConfiguration {
RLMRealmConfiguration *originalDefaultConfiguration = [RLMRealmConfiguration defaultConfiguration];
RLMRealmConfiguration *newDefaultConfiguration = [originalDefaultConfiguration copy];
newDefaultConfiguration.objectClasses = @[];
[RLMRealmConfiguration setDefaultConfiguration:newDefaultConfiguration];
XCTAssertEqual([[[[RLMRealm realmWithURL:RLMTestRealmURL()] configuration] objectClasses] count], 0U);
[RLMRealmConfiguration setDefaultConfiguration:originalDefaultConfiguration];
}
- (void)testReadOnlyFile {
@autoreleasepool {
RLMRealm *realm = self.realmWithTestPath;
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"a"]];
[realm commitWriteTransaction];
}
[NSFileManager.defaultManager setAttributes:@{NSFileImmutable: @YES} ofItemAtPath:RLMTestRealmURL().path error:nil];
// Should not be able to open read-write
RLMAssertThrowsWithCodeMatching([self realmWithTestPath], RLMErrorFileAccess);
RLMRealm *realm;
XCTAssertNoThrow(realm = [self readOnlyRealmWithURL:RLMTestRealmURL() error:nil]);
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
[NSFileManager.defaultManager setAttributes:@{NSFileImmutable: @NO} ofItemAtPath:RLMTestRealmURL().path error:nil];
}
- (void)testReadOnlyFileInImmutableDirectory {
@autoreleasepool {
RLMRealm *realm = self.realmWithTestPath;
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"a"]];
[realm commitWriteTransaction];
}
// Delete '*.lock' and '.note' files to simulate opening Realm in an app bundle
[[NSFileManager defaultManager] removeItemAtURL:[RLMTestRealmURL() URLByAppendingPathExtension:@"lock"] error:nil];
[[NSFileManager defaultManager] removeItemAtURL:[RLMTestRealmURL() URLByAppendingPathExtension:@"note"] error:nil];
// Make parent directory immutable to simulate opening Realm in an app bundle
NSURL *parentDirectoryOfTestRealmURL = [RLMTestRealmURL() URLByDeletingLastPathComponent];
[NSFileManager.defaultManager setAttributes:@{NSFileImmutable: @YES} ofItemAtPath:parentDirectoryOfTestRealmURL.path error:nil];
RLMRealm *realm;
// Read-only Realm should be opened even in immutable directory
XCTAssertNoThrow(realm = [self readOnlyRealmWithURL:RLMTestRealmURL() error:nil]);
[self dispatchAsyncAndWait:^{ XCTAssertNoThrow([self readOnlyRealmWithURL:RLMTestRealmURL() error:nil]); }];
[NSFileManager.defaultManager setAttributes:@{NSFileImmutable: @NO} ofItemAtPath:parentDirectoryOfTestRealmURL.path error:nil];
}
- (void)testReadOnlyRealmMustExist {
RLMAssertThrowsWithCodeMatching([self readOnlyRealmWithURL:RLMTestRealmURL() error:nil], RLMErrorFileNotFound);
}
- (void)testCannotHaveReadOnlyAndReadWriteRealmsAtSamePathAtSameTime {
NSString *exceptionReason = @"Realm at path '.*' already opened with different read permissions";
@autoreleasepool {
XCTAssertNoThrow([self realmWithTestPath]);
RLMAssertThrowsWithReasonMatching([self readOnlyRealmWithURL:RLMTestRealmURL() error:nil], exceptionReason);
}
@autoreleasepool {
XCTAssertNoThrow([self readOnlyRealmWithURL:RLMTestRealmURL() error:nil]);
RLMAssertThrowsWithReasonMatching([self realmWithTestPath], exceptionReason);
}
[self dispatchAsyncAndWait:^{
XCTAssertNoThrow([self readOnlyRealmWithURL:RLMTestRealmURL() error:nil]);
RLMAssertThrowsWithReasonMatching([self realmWithTestPath], exceptionReason);
}];
}
- (void)testCanOpenReadOnlyOnMulitpleThreadsAtOnce {
@autoreleasepool {
RLMRealm *realm = self.realmWithTestPath;
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"a"]];
[realm commitWriteTransaction];
}
RLMRealm *realm = [self readOnlyRealmWithURL:RLMTestRealmURL() error:nil];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
[self dispatchAsyncAndWait:^{
RLMRealm *realm = [self readOnlyRealmWithURL:RLMTestRealmURL() error:nil];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
}];
// Verify that closing the other RLMRealm didn't manage to break anything
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
}
- (void)testFilePermissionDenied {
@autoreleasepool {
XCTAssertNoThrow([self realmWithTestPath]);
}
// Make Realm at test path temporarily unreadable
NSError *error;
NSNumber *permissions = [NSFileManager.defaultManager attributesOfItemAtPath:RLMTestRealmURL().path error:&error][NSFilePosixPermissions];
assert(!error);
[NSFileManager.defaultManager setAttributes:@{NSFilePosixPermissions: @(0000)} ofItemAtPath:RLMTestRealmURL().path error:&error];
assert(!error);
RLMAssertThrowsWithCodeMatching([self realmWithTestPath], RLMErrorFilePermissionDenied);
[NSFileManager.defaultManager setAttributes:@{NSFilePosixPermissions: permissions} ofItemAtPath:RLMTestRealmURL().path error:&error];
assert(!error);
}
// Check that the data for file was left unchanged when opened with upgrading
// disabled, but allow expanding the file to the page size
#define AssertFileUnmodified(oldURL, newURL) do { \
NSData *oldData = [NSData dataWithContentsOfURL:oldURL]; \
NSData *newData = [NSData dataWithContentsOfURL:newURL]; \
if (oldData.length < realm::util::page_size()) { \
XCTAssertEqual(newData.length, realm::util::page_size()); \
XCTAssertNotEqual(([newData rangeOfData:oldData options:0 range:{0, oldData.length}]).location, NSNotFound); \
} \
else \
XCTAssertEqualObjects(oldData, newData); \
} while (0)
#if 0 // FIXME: replace with migration from core 5 files
- (void)testFileFormatUpgradeRequiredDeleteRealmIfNeeded {
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.deleteRealmIfMigrationNeeded = YES;
NSURL *bundledRealmURL = [[NSBundle bundleForClass:[RealmTests class]] URLForResource:@"fileformat-pre-null" withExtension:@"realm"];
[NSFileManager.defaultManager copyItemAtURL:bundledRealmURL toURL:config.fileURL error:nil];
@autoreleasepool {
XCTAssertTrue([[RLMRealm realmWithConfiguration:config error:nil] isEmpty]);
}
bundledRealmURL = [[NSBundle bundleForClass:[RealmTests class]] URLForResource:@"fileformat-old-date" withExtension:@"realm"];
[NSFileManager.defaultManager removeItemAtURL:config.fileURL error:nil];
[NSFileManager.defaultManager copyItemAtURL:bundledRealmURL toURL:config.fileURL error:nil];
@autoreleasepool {
XCTAssertTrue([[RLMRealm realmWithConfiguration:config error:nil] isEmpty]);
}
}
- (void)testFileFormatUpgradeRequiredButDisabled {
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.disableFormatUpgrade = true;
NSURL *bundledRealmURL = [[NSBundle bundleForClass:[RealmTests class]] URLForResource:@"fileformat-pre-null" withExtension:@"realm"];
[NSFileManager.defaultManager copyItemAtURL:bundledRealmURL toURL:config.fileURL error:nil];
RLMAssertThrowsWithCodeMatching([RLMRealm realmWithConfiguration:config error:nil],
RLMErrorFileFormatUpgradeRequired);
AssertFileUnmodified(bundledRealmURL, config.fileURL);
bundledRealmURL = [[NSBundle bundleForClass:[RealmTests class]] URLForResource:@"fileformat-old-date" withExtension:@"realm"];
[NSFileManager.defaultManager removeItemAtURL:config.fileURL error:nil];
[NSFileManager.defaultManager copyItemAtURL:bundledRealmURL toURL:config.fileURL error:nil];
RLMAssertThrowsWithCodeMatching([RLMRealm realmWithConfiguration:config error:nil],
RLMErrorFileFormatUpgradeRequired);
AssertFileUnmodified(bundledRealmURL, config.fileURL);
}
- (void)testFileFormatUpgradeRequiredButReadOnly {
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
config.readOnly = true;
NSURL *bundledRealmURL = [[NSBundle bundleForClass:[RealmTests class]] URLForResource:@"fileformat-pre-null" withExtension:@"realm"];
[NSFileManager.defaultManager copyItemAtURL:bundledRealmURL toURL:config.fileURL error:nil];
RLMAssertThrowsWithCodeMatching([RLMRealm realmWithConfiguration:config error:nil], RLMErrorFileAccess);
XCTAssertEqualObjects([NSData dataWithContentsOfURL:bundledRealmURL],
[NSData dataWithContentsOfURL:config.fileURL]);
bundledRealmURL = [[NSBundle bundleForClass:[RealmTests class]] URLForResource:@"fileformat-old-date" withExtension:@"realm"];
[NSFileManager.defaultManager removeItemAtURL:config.fileURL error:nil];
[NSFileManager.defaultManager copyItemAtURL:bundledRealmURL toURL:config.fileURL error:nil];
RLMAssertThrowsWithCodeMatching([RLMRealm realmWithConfiguration:config error:nil], RLMErrorFileAccess);
XCTAssertEqualObjects([NSData dataWithContentsOfURL:bundledRealmURL],
[NSData dataWithContentsOfURL:config.fileURL]);
}
#endif // REALM_SPM
#if TARGET_OS_IPHONE && (!TARGET_IPHONE_SIMULATOR || !TARGET_RT_64_BIT)
- (void)testExceedingVirtualAddressSpace {
RLMRealmConfiguration *config = [RLMRealmConfiguration defaultConfiguration];
const NSUInteger stringLength = 1024 * 1024;
void *mem = calloc(stringLength, '1');
NSString *largeString = [[NSString alloc] initWithBytesNoCopy:mem
length:stringLength
encoding:NSUTF8StringEncoding
freeWhenDone:YES];
@autoreleasepool {
RLMRealm *realm = [RLMRealm realmWithConfiguration:config error:nil];
[realm beginWriteTransaction];
StringObject *stringObj = [StringObject new];
stringObj.stringCol = largeString;
[realm addObject:stringObj];
[realm commitWriteTransaction];
}
struct VirtualMemoryChunk {
vm_address_t address;
vm_size_t size;
};
std::vector<VirtualMemoryChunk> allocatedChunks;
NSUInteger size = 1024 * 1024 * 1024;
while (size >= stringLength) {
VirtualMemoryChunk chunk { .size = size };
kern_return_t ret = vm_allocate(mach_task_self(), &chunk.address, chunk.size,
VM_FLAGS_ANYWHERE);
if (ret == KERN_NO_SPACE) {
size /= 2;
} else {
allocatedChunks.push_back(chunk);
}
}
@autoreleasepool {
RLMAssertThrowsWithCodeMatching([RLMRealm realmWithConfiguration:config error:nil], RLMErrorAddressSpaceExhausted);
}
for (auto chunk : allocatedChunks) {
kern_return_t ret = vm_deallocate(mach_task_self(), chunk.address, chunk.size);
assert(ret == KERN_SUCCESS);
}
@autoreleasepool {
XCTAssertNoThrow([RLMRealm realmWithConfiguration:config error:nil]);
}
}
#endif
- (void)testOpenAsync {
// Locals
RLMRealmConfiguration *c = [RLMRealmConfiguration defaultConfiguration];
XCTestExpectation *ex = [self expectationWithDescription:@"open-async"];
// Helpers
auto assertNoCachedRealm = ^{ XCTAssertNil(RLMGetAnyCachedRealmForPath(c.pathOnDisk.UTF8String)); };
auto fileExists = ^BOOL() {
return [[NSFileManager defaultManager] fileExistsAtPath:c.pathOnDisk isDirectory:nil];
};
// Unsuccessful open
c.readOnly = true;
[RLMRealm asyncOpenWithConfiguration:c
callbackQueue:dispatch_get_main_queue()
callback:^(RLMRealm * _Nullable realm, NSError * _Nullable error) {
XCTAssertEqual(error.code, RLMErrorFileNotFound);
XCTAssertNil(realm);
[ex fulfill];
}];
XCTAssertFalse(fileExists());
assertNoCachedRealm();
[self waitForExpectationsWithTimeout:5 handler:nil];
XCTAssertFalse(fileExists());
assertNoCachedRealm();
// Successful open
c.readOnly = false;
ex = [self expectationWithDescription:@"open-async"];
// Hold exclusive lock on lock file to prevent Realm from being created
// if the dispatch_async happens too quickly
NSString *lockFilePath = [c.pathOnDisk stringByAppendingString:@".lock"];
[[NSFileManager defaultManager] createFileAtPath:lockFilePath contents:[NSData data] attributes:nil];
int fd = open(lockFilePath.UTF8String, O_RDWR);
XCTAssertNotEqual(-1, fd);
int ret = flock(fd, LOCK_SH);
XCTAssertEqual(0, ret);
[RLMRealm asyncOpenWithConfiguration:c
callbackQueue:dispatch_get_main_queue()
callback:^(RLMRealm * _Nullable realm, NSError * _Nullable error) {
XCTAssertNil(error);
XCTAssertNotNil(realm);
[ex fulfill];
}];
XCTAssertFalse(fileExists());
flock(fd, LOCK_UN);
close(fd);
assertNoCachedRealm();
[self waitForExpectationsWithTimeout:1 handler:nil];
XCTAssertTrue(fileExists());
assertNoCachedRealm();
}
#pragma mark - Adding and Removing Objects
- (void)testRealmAddAndRemoveObjects {
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"a"]];
[StringObject createInRealm:realm withValue:@[@"b"]];
[StringObject createInRealm:realm withValue:@[@"c"]];
XCTAssertEqual([StringObject objectsInRealm:realm withPredicate:nil].count, 3U, @"Expecting 3 objects");
[realm commitWriteTransaction];
// test again after write transaction
RLMResults *objects = [StringObject allObjectsInRealm:realm];
XCTAssertEqual(objects.count, 3U, @"Expecting 3 objects");
XCTAssertEqualObjects([objects.firstObject stringCol], @"a", @"Expecting column to be 'a'");
[realm beginWriteTransaction];
[realm deleteObject:objects[2]];
[realm deleteObject:objects[0]];
XCTAssertEqual([StringObject objectsInRealm:realm withPredicate:nil].count, 1U, @"Expecting 1 object");
[realm commitWriteTransaction];
objects = [StringObject allObjectsInRealm:realm];
XCTAssertEqual(objects.count, 1U, @"Expecting 1 object");
XCTAssertEqualObjects([objects.firstObject stringCol], @"b", @"Expecting column to be 'b'");
}
- (void)testRemoveUnmanagedObject {
RLMRealm *realm = [self realmWithTestPath];
StringObject *obj = [[StringObject alloc] initWithValue:@[@"a"]];
[realm beginWriteTransaction];
XCTAssertThrows([realm deleteObject:obj]);
obj = [StringObject createInRealm:realm withValue:@[@"b"]];
[realm commitWriteTransaction];
[self waitForNotification:RLMRealmDidChangeNotification realm:realm block:^{
RLMRealm *realm = [self realmWithTestPath];
RLMObject *obj = [[StringObject allObjectsInRealm:realm] firstObject];
[realm beginWriteTransaction];
[realm deleteObject:obj];
XCTAssertThrows([realm deleteObject:obj]);
[realm commitWriteTransaction];
}];
[realm beginWriteTransaction];
[realm deleteObject:obj];
[realm commitWriteTransaction];
}
- (void)testRealmBatchRemoveObjects {
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
StringObject *strObj = [StringObject createInRealm:realm withValue:@[@"a"]];
[StringObject createInRealm:realm withValue:@[@"b"]];
[StringObject createInRealm:realm withValue:@[@"c"]];
[realm commitWriteTransaction];
// delete objects
RLMResults *objects = [StringObject allObjectsInRealm:realm];
XCTAssertEqual(objects.count, 3U, @"Expecting 3 objects");
[realm beginWriteTransaction];
[realm deleteObjects:[StringObject objectsInRealm:realm where:@"stringCol != 'a'"]];
XCTAssertEqual([[StringObject allObjectsInRealm:realm] count], 1U, @"Expecting 0 objects");
[realm deleteObjects:objects];
XCTAssertEqual([[StringObject allObjectsInRealm:realm] count], 0U, @"Expecting 0 objects");
[realm commitWriteTransaction];
XCTAssertEqual([[StringObject allObjectsInRealm:realm] count], 0U, @"Expecting 0 objects");
XCTAssertThrows(strObj.stringCol, @"Object should be invalidated");
// add objects to linkView
[realm beginWriteTransaction];
ArrayPropertyObject *obj = [ArrayPropertyObject createInRealm:realm withValue:@[@"name", @[@[@"a"], @[@"b"], @[@"c"]], @[]]];
[StringObject createInRealm:realm withValue:@[@"d"]];
[realm commitWriteTransaction];
XCTAssertEqual([[StringObject allObjectsInRealm:realm] count], 4U, @"Expecting 4 objects");
// remove from linkView
[realm beginWriteTransaction];
[realm deleteObjects:obj.array];
[realm commitWriteTransaction];
XCTAssertEqual([[StringObject allObjectsInRealm:realm] count], 1U, @"Expecting 1 object");
XCTAssertEqual(obj.array.count, 0U, @"Expecting 0 objects");
// remove NSArray
NSArray *arrayOfLastObject = @[[[StringObject allObjectsInRealm:realm] lastObject]];
[realm beginWriteTransaction];
[realm deleteObjects:arrayOfLastObject];
[realm commitWriteTransaction];
XCTAssertEqual(objects.count, 0U, @"Expecting 0 objects");
// add objects to linkView
[realm beginWriteTransaction];
[obj.array addObject:[StringObject createInRealm:realm withValue:@[@"a"]]];
[obj.array addObject:[[StringObject alloc] initWithValue:@[@"b"]]];
[realm commitWriteTransaction];
// remove objects from realm
XCTAssertEqual(obj.array.count, 2U, @"Expecting 2 objects");
[realm beginWriteTransaction];
[realm deleteObjects:[StringObject allObjectsInRealm:realm]];
[realm commitWriteTransaction];
XCTAssertEqual(obj.array.count, 0U, @"Expecting 0 objects");
}
- (void)testAddManagedObjectToOtherRealm {
RLMRealm *realm1 = [self realmWithTestPath];
RLMRealm *realm2 = [RLMRealm defaultRealm];
CircleObject *co1 = [[CircleObject alloc] init];
co1.data = @"1";
CircleObject *co2 = [[CircleObject alloc] init];
co2.data = @"2";
co2.next = co1;
CircleArrayObject *cao = [[CircleArrayObject alloc] init];
[cao.circles addObject:co1];
[realm1 transactionWithBlock:^{ [realm1 addObject:co1]; }];
[realm2 beginWriteTransaction];
XCTAssertThrows([realm2 addObject:co1], @"should reject already-managed object");
XCTAssertThrows([realm2 addObject:co2], @"should reject linked managed object");
XCTAssertThrows([realm2 addObject:cao], @"should reject array containing managed object");
[realm2 commitWriteTransaction];
// The objects are left in an odd state if validation fails (since the
// exception isn't supposed to be recoverable), so make new objects
co2 = [[CircleObject alloc] init];
co2.data = @"2";
co2.next = co1;
cao = [[CircleArrayObject alloc] init];
[cao.circles addObject:co1];
[realm1 beginWriteTransaction];
XCTAssertNoThrow([realm1 addObject:co2],
@"should be able to add object which links to object managed by target Realm");
XCTAssertNoThrow([realm1 addObject:cao],
@"should be able to add object with an array containing an object managed by target Realm");
[realm1 commitWriteTransaction];
}
- (void)testCopyObjectsBetweenRealms {
RLMRealm *realm1 = [self realmWithTestPath];
RLMRealm *realm2 = [RLMRealm defaultRealm];
StringObject *so = [[StringObject alloc] init];
so.stringCol = @"value";
[realm1 beginWriteTransaction];
[realm1 addObject:so];
[realm1 commitWriteTransaction];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm1].count);
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm2].count);
XCTAssertEqualObjects(so.stringCol, @"value");
[realm2 beginWriteTransaction];
StringObject *so2 = [StringObject createInRealm:realm2 withValue:so];
[realm2 commitWriteTransaction];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm1].count);
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm2].count);
XCTAssertEqualObjects(so2.stringCol, @"value");
}
- (void)testCopyArrayPropertyBetweenRealms {
RLMRealm *realm1 = [self realmWithTestPath];
RLMRealm *realm2 = [RLMRealm defaultRealm];
EmployeeObject *eo = [[EmployeeObject alloc] init];
eo.name = @"name";
eo.age = 50;
eo.hired = YES;
CompanyObject *co = [[CompanyObject alloc] init];
co.name = @"company name";
[co.employees addObject:eo];
[realm1 beginWriteTransaction];
[realm1 addObject:co];
[realm1 commitWriteTransaction];
XCTAssertEqual(1U, [EmployeeObject allObjectsInRealm:realm1].count);
XCTAssertEqual(1U, [CompanyObject allObjectsInRealm:realm1].count);
[realm2 beginWriteTransaction];
CompanyObject *co2 = [CompanyObject createInRealm:realm2 withValue:co];
[realm2 commitWriteTransaction];
XCTAssertEqual(1U, [EmployeeObject allObjectsInRealm:realm1].count);
XCTAssertEqual(1U, [CompanyObject allObjectsInRealm:realm1].count);
XCTAssertEqual(1U, [EmployeeObject allObjectsInRealm:realm2].count);
XCTAssertEqual(1U, [CompanyObject allObjectsInRealm:realm2].count);
XCTAssertEqualObjects(@"name", [co2.employees.firstObject name]);
}
- (void)testCopyLinksBetweenRealms {
RLMRealm *realm1 = [self realmWithTestPath];
RLMRealm *realm2 = [RLMRealm defaultRealm];
CircleObject *c = [[CircleObject alloc] init];
c.data = @"1";
c.next = [[CircleObject alloc] init];
c.next.data = @"2";
[realm1 beginWriteTransaction];
[realm1 addObject:c];
[realm1 commitWriteTransaction];
XCTAssertEqual(realm1, c.realm);
XCTAssertEqual(realm1, c.next.realm);
XCTAssertEqual(2U, [CircleObject allObjectsInRealm:realm1].count);
[realm2 beginWriteTransaction];
CircleObject *c2 = [CircleObject createInRealm:realm2 withValue:c];
[realm2 commitWriteTransaction];
XCTAssertEqualObjects(c2.data, @"1");
XCTAssertEqualObjects(c2.next.data, @"2");
XCTAssertEqual(2U, [CircleObject allObjectsInRealm:realm1].count);
XCTAssertEqual(2U, [CircleObject allObjectsInRealm:realm2].count);
}
- (void)testCopyObjectsInArrayLiteral {
RLMRealm *realm1 = [self realmWithTestPath];
RLMRealm *realm2 = [RLMRealm defaultRealm];
CircleObject *c = [[CircleObject alloc] init];
c.data = @"1";
[realm1 beginWriteTransaction];
[realm1 addObject:c];
[realm1 commitWriteTransaction];
[realm2 beginWriteTransaction];
CircleObject *c2 = [CircleObject createInRealm:realm2 withValue:@[@"3", @[@"2", c]]];
[realm2 commitWriteTransaction];
XCTAssertEqual(1U, [CircleObject allObjectsInRealm:realm1].count);
XCTAssertEqual(3U, [CircleObject allObjectsInRealm:realm2].count);
XCTAssertEqual(realm1, c.realm);
XCTAssertEqual(realm2, c2.realm);
XCTAssertEqualObjects(@"1", c.data);
XCTAssertEqualObjects(@"3", c2.data);
XCTAssertEqualObjects(@"2", c2.next.data);
XCTAssertEqualObjects(@"1", c2.next.next.data);
}
- (void)testAddOrUpdate {
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
PrimaryStringObject *obj = [[PrimaryStringObject alloc] initWithValue:@[@"string", @1]];
[realm addOrUpdateObject:obj];
RLMResults *objects = [PrimaryStringObject allObjects];
XCTAssertEqual([objects count], 1U, @"Should have 1 object");
XCTAssertEqual([(PrimaryStringObject *)objects[0] intCol], 1, @"Value should be 1");
PrimaryStringObject *obj2 = [[PrimaryStringObject alloc] initWithValue:@[@"string2", @2]];
[realm addOrUpdateObject:obj2];
XCTAssertEqual([objects count], 2U, @"Should have 2 objects");
// upsert with new secondary property
PrimaryStringObject *obj3 = [[PrimaryStringObject alloc] initWithValue:@[@"string", @3]];
[realm addOrUpdateObject:obj3];
XCTAssertEqual([objects count], 2U, @"Should have 2 objects");
XCTAssertEqual([(PrimaryStringObject *)objects[0] intCol], 3, @"Value should be 3");
// upsert on non-primary key object should throw
XCTAssertThrows([realm addOrUpdateObject:[[StringObject alloc] initWithValue:@[@"string"]]]);
[realm commitWriteTransaction];
}
- (void)testAddOrUpdateObjectsFromArray {
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
PrimaryStringObject *obj = [[PrimaryStringObject alloc] initWithValue:@[@"string1", @1]];
[realm addObject:obj];
PrimaryStringObject *obj2 = [[PrimaryStringObject alloc] initWithValue:@[@"string2", @2]];
[realm addObject:obj2];
PrimaryStringObject *obj3 = [[PrimaryStringObject alloc] initWithValue:@[@"string3", @3]];
[realm addObject:obj3];
RLMResults *objects = [PrimaryStringObject allObjects];
XCTAssertEqual([objects count], 3U);
XCTAssertEqual(obj.intCol, 1);
XCTAssertEqual(obj2.intCol, 2);
XCTAssertEqual(obj3.intCol, 3);
// upsert with array of 2 objects. One is to update the existing value, another is added
NSArray *array = @[[[PrimaryStringObject alloc] initWithValue:@[@"string2", @4]],
[[PrimaryStringObject alloc] initWithValue:@[@"string4", @5]]];
[realm addOrUpdateObjects:array];
XCTAssertEqual([objects count], 4U, @"Should have 4 objects");
XCTAssertEqual(obj.intCol, 1);
XCTAssertEqual(obj2.intCol, 4);
XCTAssertEqual(obj3.intCol, 3);
XCTAssertEqual([array[1] intCol], 5);
[realm commitWriteTransaction];
}
- (void)testDelete {
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
OwnerObject *obj = [OwnerObject createInDefaultRealmWithValue:@[@"deeter", @[@"barney", @2]]];
[realm commitWriteTransaction];
XCTAssertEqual(1U, OwnerObject.allObjects.count);
XCTAssertEqual(NO, obj.invalidated);
XCTAssertThrows([realm deleteObject:obj]);
RLMRealm *testRealm = [self realmWithTestPath];
[testRealm transactionWithBlock:^{
XCTAssertThrows([testRealm deleteObject:[[OwnerObject alloc] init]]);
[realm transactionWithBlock:^{
XCTAssertThrows([testRealm deleteObject:obj]);
}];
}];
[realm transactionWithBlock:^{
[realm deleteObject:obj];
XCTAssertEqual(YES, obj.invalidated);
}];
XCTAssertEqual(0U, OwnerObject.allObjects.count);
}
- (void)testDeleteObjects {
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
CompanyObject *obj = [CompanyObject createInDefaultRealmWithValue:@[@"deeter", @[@[@"barney", @2, @YES]]]];
NSArray *objects = @[obj];
[realm commitWriteTransaction];
XCTAssertEqual(1U, CompanyObject.allObjects.count);
XCTAssertThrows([realm deleteObjects:objects]);
XCTAssertThrows([realm deleteObjects:[CompanyObject allObjectsInRealm:realm]]);
XCTAssertThrows([realm deleteObjects:obj.employees]);
RLMRealm *testRealm = [self realmWithTestPath];
[testRealm transactionWithBlock:^{
[realm transactionWithBlock:^{
XCTAssertThrows([testRealm deleteObjects:objects]);
XCTAssertThrows([testRealm deleteObjects:[CompanyObject allObjectsInRealm:realm]]);
XCTAssertThrows([testRealm deleteObjects:obj.employees]);
}];
}];
XCTAssertEqual(1U, CompanyObject.allObjects.count);
}
- (void)testDeleteAllObjects {
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
OwnerObject *obj = [OwnerObject createInDefaultRealmWithValue:@[@"deeter", @[@"barney", @2]]];
[realm commitWriteTransaction];
XCTAssertEqual(1U, OwnerObject.allObjects.count);
XCTAssertEqual(1U, DogObject.allObjects.count);
XCTAssertEqual(NO, obj.invalidated);
XCTAssertThrows([realm deleteAllObjects]);
[realm transactionWithBlock:^{
[realm deleteAllObjects];
XCTAssertEqual(YES, obj.invalidated);
}];
XCTAssertEqual(0U, OwnerObject.allObjects.count);
XCTAssertEqual(0U, DogObject.allObjects.count);
}
- (void)testAddObjectsFromArray
{
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
XCTAssertThrows(([realm addObjects:@[@[@"Rex", @10]]]),
@"should reject non-RLMObject in array");
DogObject *dog = [DogObject new];
dog.dogName = @"Rex";
dog.age = 10;
XCTAssertNoThrow([realm addObjects:@[dog]], @"should allow RLMObject in array");
XCTAssertEqual(1U, [[DogObject allObjectsInRealm:realm] count]);
[realm cancelWriteTransaction];
}
#pragma mark - Transactions
- (void)testRealmTransactionBlock {
RLMRealm *realm = [self realmWithTestPath];
[realm transactionWithBlock:^{
[StringObject createInRealm:realm withValue:@[@"b"]];
}];
RLMResults *objects = [StringObject allObjectsInRealm:realm];
XCTAssertEqual(objects.count, 1U, @"Expecting 1 object");
XCTAssertEqualObjects([objects.firstObject stringCol], @"b", @"Expecting column to be 'b'");
}
- (void)testInWriteTransaction {
RLMRealm *realm = [self realmWithTestPath];
XCTAssertFalse(realm.inWriteTransaction);
[realm beginWriteTransaction];
XCTAssertTrue(realm.inWriteTransaction);
[realm cancelWriteTransaction];
[realm transactionWithBlock:^{
XCTAssertTrue(realm.inWriteTransaction);
[realm cancelWriteTransaction];
XCTAssertFalse(realm.inWriteTransaction);
}];
[realm beginWriteTransaction];
[realm invalidate];
XCTAssertFalse(realm.inWriteTransaction);
}
- (void)testAutorefreshAfterBackgroundUpdate {
RLMRealm *realm = [self realmWithTestPath];
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm].count);
[self waitForNotification:RLMRealmDidChangeNotification realm:realm block:^{
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
}];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
}
- (void)testBackgroundUpdateWithoutAutorefresh {
RLMRealm *realm = [self realmWithTestPath];
realm.autorefresh = NO;
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm].count);
[self waitForNotification:RLMRealmRefreshRequiredNotification realm:realm block:^{
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
}];
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm].count);
[realm refresh];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
}
- (void)testBeginWriteTransactionsNotifiesWithUpdatedObjects {
RLMRealm *realm = [self realmWithTestPath];
realm.autorefresh = NO;
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm].count);
// Create an object in a background thread and wait for that to complete,
// without refreshing the main thread realm
[self waitForNotification:RLMRealmRefreshRequiredNotification realm:realm block:^{
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
}];
// Verify that the main thread realm still doesn't have any objects
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm].count);
// Verify that the local notification sent by the beginWriteTransaction
// below when it advances the realm to the latest version occurs *after*
// the advance
__block bool notificationFired = false;
RLMNotificationToken *token = [realm addNotificationBlock:^(__unused NSString *note, RLMRealm *realm) {
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
notificationFired = true;
}];
[realm beginWriteTransaction];
[realm commitWriteTransaction];
[token invalidate];
XCTAssertTrue(notificationFired);
}
- (void)testBeginWriteTransactionsRefreshesRealm {
// auto refresh on by default
RLMRealm *realm = [self realmWithTestPath];
// Set up notification which will be triggered when calling beginWriteTransaction
__block bool notificationFired = false;
RLMNotificationToken *token = [realm addNotificationBlock:^(__unused NSString *note, RLMRealm *realm) {
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
XCTAssertThrows([realm beginWriteTransaction], @"We should already be in a write transaction");
notificationFired = true;
}];
// dispatch to background syncronously
[self dispatchAsyncAndWait:^{
RLMRealm *realm = [self realmWithTestPath];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
}];
// notification shouldnt have fired
XCTAssertFalse(notificationFired);
[realm beginWriteTransaction];
// notification should have fired
XCTAssertTrue(notificationFired);
[realm cancelWriteTransaction];
[token invalidate];
}
- (void)testBeginWriteTransactionFromWithinRefreshRequiredNotification {
RLMRealm *realm = [RLMRealm defaultRealm];
realm.autorefresh = NO;
auto expectation = [self expectationWithDescription:@""];
RLMNotificationToken *token = [realm addNotificationBlock:^(NSString *note, RLMRealm *realm) {
XCTAssertEqual(RLMRealmRefreshRequiredNotification, note);
XCTAssertEqual(0U, [StringObject allObjectsInRealm:realm].count);
[realm beginWriteTransaction];
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
[realm cancelWriteTransaction];
[expectation fulfill]; // note that this will throw if the notification is incorrectly called twice
}];
[self dispatchAsyncAndWait:^{
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
}];
[self waitForExpectationsWithTimeout:2.0 handler:nil];
[token invalidate];
}
- (void)testBeginWriteTransactionFromWithinRealmChangedNotification {
RLMRealm *realm = [RLMRealm defaultRealm];
auto createObject = ^{
[self dispatchAsyncAndWait:^{
RLMRealm *realm = [RLMRealm defaultRealm];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
}];
};
// Test with the triggering transaction on a different thread
auto expectation = [self expectationWithDescription:@""];
RLMNotificationToken *token = [realm addNotificationBlock:^(NSString *note, RLMRealm *realm) {
XCTAssertEqual(RLMRealmDidChangeNotification, note);
// We're in DidChange, so the first object is already present
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
createObject();
// Haven't refreshed yet, so still one
XCTAssertEqual(1U, [StringObject allObjectsInRealm:realm].count);
// Refreshes without sending notifications since we're within a notification
[realm beginWriteTransaction];
XCTAssertEqual(2U, [StringObject allObjectsInRealm:realm].count);
[realm cancelWriteTransaction];
[expectation fulfill]; // note that this will throw if the notification is incorrectly called twice
}];
createObject();
[self waitForExpectationsWithTimeout:2.0 handler:nil];
[token invalidate];
// Test with the triggering transaction on the same thread
__block bool first = true;
token = [realm addNotificationBlock:^(NSString *note, RLMRealm *realm) {
XCTAssertTrue(first);
XCTAssertEqual(RLMRealmDidChangeNotification, note);
XCTAssertEqual(3U, [StringObject allObjectsInRealm:realm].count);
first = false;
[realm beginWriteTransaction]; // should not trigger a notification
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction]; // also should not trigger a notification
}];
[realm beginWriteTransaction];
[StringObject createInRealm:realm withValue:@[@"string"]];
[realm commitWriteTransaction];
XCTAssertFalse(first);
[token invalidate];
}