yorkie-ios-sdk/Tests/Unit/Document/CRDT/CRDTElementTests.swift

107 lines
3.2 KiB
Swift

/*
* Copyright 2022 The Yorkie Authors. All rights reserved.
*
* 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 XCTest
@testable import Yorkie
class TestCRDTElement: CRDTElement {
var createdAt: TimeTicket
var movedAt: TimeTicket?
var removedAt: TimeTicket?
init(createdAt: TimeTicket) {
self.createdAt = createdAt
}
func toJSON() -> String { "" }
func toSortedJSON() -> String { "" }
func deepcopy() -> CRDTElement { self }
}
class TestCRDTElementTests: XCTestCase {
func test_can_set_smaller_movedAt() {
let small = TimeTicket.initial
let big = TimeTicket.max
let target = TestCRDTElement(createdAt: big)
let movedResult = target.setMovedAt(small)
XCTAssertEqual(movedResult, true)
XCTAssertTrue(target.movedAt == small)
}
func test_can_set_bigger_movedAt_when_movedAt_is_nil() {
let small = TimeTicket.initial
let big = TimeTicket.max
let target = TestCRDTElement(createdAt: small)
let movedResult = target.setMovedAt(big)
XCTAssertEqual(movedResult, true)
XCTAssertTrue(target.movedAt == big)
}
func test_can_not_set_bigger_movedAt_when_movedAt_is_non_nil() {
let small = TimeTicket.initial
let big = TimeTicket.max
let target = TestCRDTElement(createdAt: small)
target.setMovedAt(big)
let timeTicket = TimeTicket(lamport: 10, delimiter: 10, actorID: ActorIDs.initial)
let movedResult = target.setMovedAt(timeTicket)
XCTAssertEqual(movedResult, false)
XCTAssertTrue(target.movedAt! > small)
}
func test_can_not_remove_when_nil() {
let target = TestCRDTElement(createdAt: TimeTicket.initial)
XCTAssertEqual(target.remove(nil), false)
}
func test_can_not_remove_when_removeAt_is_before_createdAt() {
let target = TestCRDTElement(createdAt: TimeTicket.max)
XCTAssertEqual(target.remove(TimeTicket.initial), false)
}
func test_can_remove_when_current_removeAt_is_nil() {
let target = TestCRDTElement(createdAt: TimeTicket.initial)
XCTAssertEqual(target.remove(TimeTicket.max), true)
}
func test_can_remove_when_current_removeAt_is_not_nil_and_samll() {
let target = TestCRDTElement(createdAt: TimeTicket.initial)
target.removedAt = TimeTicket.initial
XCTAssertEqual(target.remove(TimeTicket.max), true)
}
func test_can_not_remove_when_current_removeAt_is_not_nil_and_big() {
let target = TestCRDTElement(createdAt: TimeTicket.initial)
target.removedAt = TimeTicket.max
let timeTicket = TimeTicket(lamport: 10, delimiter: 10, actorID: ActorIDs.initial)
XCTAssertEqual(target.remove(timeTicket), false)
}
}