mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-21 00:08:22 +00:00
000bc36919
Summary: Relicensing IGListKit under MIT Reviewed By: calimarkus Differential Revision: D7764125 fbshipit-source-id: 6c773195ef3184202725fe7f08de754f979cb83f
83 lines
3.1 KiB
Swift
83 lines
3.1 KiB
Swift
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import XCTest
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import IGListKit
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class SwiftClass: ListDiffable {
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let id: Int
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let value: String
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init(id: Int, value: String) {
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self.id = id
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self.value = value
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}
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@objc func diffIdentifier() -> NSObjectProtocol {
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return NSNumber(value: id)
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}
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func isEqual(toDiffableObject object: ListDiffable?) -> Bool {
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guard let object = object as? SwiftClass else { return false }
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return id == object.id && value == object.value
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}
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}
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class IGDiffingSwiftTests: XCTestCase {
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func testDiffingStrings() {
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let o: [NSString] = ["a", "b", "c"]
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let n: [NSString] = ["a", "c", "d"]
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let result = ListDiff(oldArray: o, newArray: n, option: .equality)
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XCTAssertEqual(result.deletes, IndexSet(integer: 1))
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XCTAssertEqual(result.inserts, IndexSet(integer: 2))
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XCTAssertEqual(result.moves.count, 0)
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XCTAssertEqual(result.updates.count, 0)
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}
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func testDiffingNumbers() {
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let o: [NSNumber] = [0, 1, 2]
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let n: [NSNumber] = [0, 2, 4]
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let result = ListDiff(oldArray: o, newArray: n, option: .equality)
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XCTAssertEqual(result.deletes, IndexSet(integer: 1))
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XCTAssertEqual(result.inserts, IndexSet(integer: 2))
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XCTAssertEqual(result.moves.count, 0)
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XCTAssertEqual(result.updates.count, 0)
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}
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func testDiffingSwiftClass() {
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let o = [SwiftClass(id: 0, value: "a"), SwiftClass(id: 1, value: "b"), SwiftClass(id: 2, value: "c")]
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let n = [SwiftClass(id: 0, value: "a"), SwiftClass(id: 2, value: "c"), SwiftClass(id: 4, value: "d")]
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let result = ListDiff(oldArray: o, newArray: n, option: .equality)
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XCTAssertEqual(result.deletes, IndexSet(integer: 1))
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XCTAssertEqual(result.inserts, IndexSet(integer: 2))
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XCTAssertEqual(result.moves.count, 0)
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XCTAssertEqual(result.updates.count, 0)
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}
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func testDiffingSwiftClassPointerComparison() {
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let o = [SwiftClass(id: 0, value: "a"), SwiftClass(id: 1, value: "b"), SwiftClass(id: 2, value: "c")]
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let n = [SwiftClass(id: 0, value: "a"), SwiftClass(id: 2, value: "c"), SwiftClass(id: 4, value: "d")]
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let result = ListDiff(oldArray: o, newArray: n, option: .pointerPersonality)
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XCTAssertEqual(result.deletes, IndexSet(integer: 1))
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XCTAssertEqual(result.inserts, IndexSet(integer: 2))
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XCTAssertEqual(result.moves.count, 0)
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XCTAssertEqual(result.updates.count, 2)
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}
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func testDiffingSwiftClassWithUpdates() {
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let o = [SwiftClass(id: 0, value: "a"), SwiftClass(id: 1, value: "b"), SwiftClass(id: 2, value: "c")]
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let n = [SwiftClass(id: 0, value: "b"), SwiftClass(id: 1, value: "b"), SwiftClass(id: 2, value: "b")]
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let result = ListDiff(oldArray: o, newArray: n, option: .equality)
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XCTAssertEqual(result.deletes.count, 0)
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XCTAssertEqual(result.inserts.count, 0)
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XCTAssertEqual(result.moves.count, 0)
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XCTAssertEqual(result.updates.count, 2)
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}
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}
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