zeus
65 lines
2.8 KiB
Swift
65 lines
2.8 KiB
Swift
import GRDB
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class DatabasePoolBackupTests: BackupTestCase {
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func testDatabaseWriterBackup() throws {
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// SQLCipher can't backup encrypted databases: use a pristine Configuration
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let source = try makeDatabasePool(filename: "source.sqlite", configuration: Configuration())
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let destination = try makeDatabasePool(filename: "destination.sqlite", configuration: Configuration())
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try testDatabaseWriterBackup(from: source, to: destination)
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}
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func testDatabaseBackup() throws {
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let source = try makeDatabasePool(filename: "source.sqlite", configuration: Configuration())
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let destination = try makeDatabasePool(filename: "destination.sqlite", configuration: Configuration())
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try testDatabaseBackup(from: source, to: destination)
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}
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// TODO: fix flaky test
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// func testConcurrentWriteDuringBackup() throws {
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// let source = try makeDatabasePool(filename: "source.sqlite")
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// let destination = try makeDatabasePool(filename: "destination.sqlite")
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//
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// try source.write { db in
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// try db.execute(sql: "CREATE TABLE item (id INTEGER PRIMARY KEY)")
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// try db.execute(sql: "INSERT INTO item (id) VALUES (NULL)")
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// XCTAssertEqual(try Int.fetchOne(db, sql: "SELECT COUNT(*) FROM item")!, 1)
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// }
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//
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// let s1 = DispatchSemaphore(value: 0)
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// let s2 = DispatchSemaphore(value: 0)
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// DispatchQueue.global().async {
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// _ = s1.wait(timeout: .distantFuture)
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// try! source.writeInTransaction(.immediate) { db in
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// try db.execute(sql: "INSERT INTO item (id) VALUES (NULL)")
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// s2.signal()
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// return .commit
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// }
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// }
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//
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// try destination.writeWithoutTransaction { dbDestination in
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// try source.backup(
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// to: dbDestination,
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// afterBackupInit: {
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// s1.signal()
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// _ = s2.wait(timeout: .distantFuture)
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// },
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// afterBackupStep: {
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// try! source.write { db in
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// try db.execute(sql: "INSERT INTO item (id) VALUES (NULL)")
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// }
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// })
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// }
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//
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// try source.read { db in
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// XCTAssertEqual(try Int.fetchOne(db, sql: "SELECT COUNT(*) FROM item")!, 3)
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// }
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// try destination.read { db in
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// // TODO: understand why the fix for https://github.com/groue/GRDB.swift/issues/102
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// // had this value change from 2 to 1.
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// // TODO: Worse, this test is fragile. I've seen not 1 but 2 once.
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// XCTAssertEqual(try Int.fetchOne(db, sql: "SELECT COUNT(*) FROM item")!, 1)
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// }
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// }
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}
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