-
Notifications
You must be signed in to change notification settings - Fork 15
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
c42358c
commit 88694b8
Showing
2 changed files
with
109 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
101 changes: 101 additions & 0 deletions
101
Tests/CollectionView/CollectionViewLazyDiffingTests.swift
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| // | ||
| // PlanGrid | ||
| // https://www.plangrid.com | ||
| // https://medium.com/plangrid-technology | ||
| // | ||
| // Documentation | ||
| // https://plangrid.github.io/ReactiveLists | ||
| // | ||
| // GitHub | ||
| // https://github.com/plangrid/ReactiveLists | ||
| // | ||
| // License | ||
| // Copyright © 2018-present PlanGrid, Inc. | ||
| // Released under an MIT license: https://opensource.org/licenses/MIT | ||
| // | ||
|
|
||
| @testable import ReactiveLists | ||
| import XCTest | ||
|
|
||
| final class CollectionViewDiffingTests: XCTestCase { | ||
|
|
||
| var collectionViewDataSource: CollectionViewDriver! | ||
| var mockCollectionView: TestCollectionView! | ||
|
|
||
| override func setUp() { | ||
| super.setUp() | ||
| self.mockCollectionView = TestCollectionView( | ||
| frame: .zero, | ||
| collectionViewLayout: UICollectionViewFlowLayout() | ||
| ) | ||
| // self.mockCollectionView.indexPathsForVisibleRowsOverride = [ | ||
| // IndexPath(row: 0, section: 0), | ||
| // ] | ||
| self.collectionViewDataSource = CollectionViewDriver( | ||
| collectionView: self.mockCollectionView, | ||
| shouldDeselectUponSelection: false, | ||
| useDataSource: true, | ||
| automaticDiffingEnabled: true | ||
| ) | ||
| } | ||
|
|
||
| /// Tests that changes to individual rows result in the correct calls to update the | ||
| /// table view. | ||
| /// | ||
| /// - Note: We're only testing one type of row update since this is sufficient to test the | ||
| /// communication between the diffing lib and the table view. The diffing lib itself has | ||
| /// extensive tests for the various diffing scenarios. | ||
| func testChangingRows() { | ||
| let userCells = [LazyTestUserCell(user: "Name")] | ||
| let dataSource = CollectionCellViewModelDataSource(userCells) | ||
| let section = CollectionSectionViewModel( | ||
| diffingKey: "default_section", | ||
| cellViewModels: [], | ||
| cellViewModelDataSource: dataSource | ||
| ) | ||
| let initialModel = CollectionViewModel( | ||
| sectionModels: [section] | ||
| ) | ||
|
|
||
| self.collectionViewDataSource.collectionViewModel = initialModel | ||
|
|
||
| let testUser1 = [LazyTestUserCell(user: "TestUser1")] | ||
| // [LazyUserCell(user: "TestUser1"), LazyUserCell(user: "TestUser2")] | ||
| // let testUser2 = LazyUserCell(user: "TestUser2") | ||
| let dataSource1 = CollectionCellViewModelDataSource(testUser1) | ||
| let section2 = CollectionSectionViewModel( | ||
| diffingKey: "default_section", | ||
| cellViewModels: [], | ||
| cellViewModelDataSource: dataSource1 | ||
| ) | ||
| let updatedModel = CollectionViewModel( | ||
| sectionModels: [section2] | ||
| ) | ||
|
|
||
| self.collectionViewDataSource.collectionViewModel = updatedModel | ||
|
|
||
| XCTAssertEqual(self.mockCollectionView.callsToInsertItems.count, 1) | ||
| XCTAssertEqual(self.mockCollectionView.callsToReloadData, 2) | ||
| } | ||
| } | ||
|
|
||
| final class LazyTestUserCell: CollectionCellViewModel, DiffableViewModel { | ||
| var accessibilityFormat: CellAccessibilityFormat = "" | ||
| let registrationInfo = ViewRegistrationInfo(classType: UICollectionViewCell.self) | ||
|
|
||
| let user: String | ||
| private(set) var diffingKeyAccessed: Bool = false | ||
|
|
||
| init(user: String) { | ||
| self.user = user | ||
| } | ||
|
|
||
| func applyViewModelToCell(_ cell: UICollectionViewCell) {} | ||
|
|
||
| func willDisplay(cell: UICollectionViewCell) {} | ||
|
|
||
| var diffingKey: String { | ||
| self.diffingKeyAccessed = true | ||
| return self.user | ||
| } | ||
| } |