mirror of
git://jb55.com/damus
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144 lines
10 KiB
Swift
144 lines
10 KiB
Swift
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//
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// PostViewTests.swift
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// damusTests
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//
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// Created by Daniel D’Aquino on 2023-08-19.
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//
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import Foundation
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import XCTest
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@testable import damus
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import SwiftUI
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final class PostViewTests: XCTestCase {
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override func setUpWithError() throws {
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// Put setup code here. This method is called before the invocation of each test method in the class.
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}
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override func tearDownWithError() throws {
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// Put teardown code here. This method is called after the invocation of each test method in the class.
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}
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/// Based on https://github.com/damus-io/damus/issues/1375
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/// Tests whether the editor properly handles mention links after they have been added, to avoid manual editing of attributed links
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func testMentionLinkEditorHandling() throws {
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var content: NSMutableAttributedString
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// Test normal insertion
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checkMentionLinkEditorHandling(content: NSMutableAttributedString(string: "Hello"), replacementText: "@", replacementRange: NSRange(location: 0, length: 0), shouldBeAbleToChangeAutomatically: true)
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checkMentionLinkEditorHandling(content: NSMutableAttributedString(string: "Hello "), replacementText: "@", replacementRange: NSRange(location: 6, length: 0), shouldBeAbleToChangeAutomatically: true)
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checkMentionLinkEditorHandling(content: NSMutableAttributedString(string: "Helo "), replacementText: "l", replacementRange: NSRange(location: 3, length: 0), shouldBeAbleToChangeAutomatically: true)
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// Test normal backspacing
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checkMentionLinkEditorHandling(content: NSMutableAttributedString(string: "Hello"), replacementText: "", replacementRange: NSRange(location: 5, length: 1), shouldBeAbleToChangeAutomatically: true)
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checkMentionLinkEditorHandling(content: NSMutableAttributedString(string: "Hello "), replacementText: "", replacementRange: NSRange(location: 6, length: 1), shouldBeAbleToChangeAutomatically: true)
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checkMentionLinkEditorHandling(content: NSMutableAttributedString(string: "Helo "), replacementText: "", replacementRange: NSRange(location: 3, length: 1), shouldBeAbleToChangeAutomatically: true)
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// Test normal insertion after mention link
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content = NSMutableAttributedString(string: "Hello @user ")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: "a", replacementRange: NSRange(location: 12, length: 0), shouldBeAbleToChangeAutomatically: true)
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// Test insertion right at the end of a mention link, at the end of the text
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content = NSMutableAttributedString(string: "Hello @user")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: ",", replacementRange: NSRange(location: 11, length: 0), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 12, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @user,")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 11, effectiveRange: nil))
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})
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// Test insertion right at the end of a mention link, in the middle of the text
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content = NSMutableAttributedString(string: "Hello @user how are you?")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: ",", replacementRange: NSRange(location: 11, length: 0), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 12, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @user, how are you?")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 11, effectiveRange: nil))
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})
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// Test insertion in the middle of a mention link to check if the link is removed
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content = NSMutableAttributedString(string: "Hello @user how are you?")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: "a", replacementRange: NSRange(location: 8, length: 0), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 9, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @uaser how are you?")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 8, effectiveRange: nil))
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})
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// Test insertion in the middle of a mention link to check if the link is removed, at the end of the text
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content = NSMutableAttributedString(string: "Hello @user")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: "a", replacementRange: NSRange(location: 8, length: 0), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 9, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @uaser")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 8, effectiveRange: nil))
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})
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// Test backspacing right at the end of a mention link, at the end of the text
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content = NSMutableAttributedString(string: "Hello @user")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: "", replacementRange: NSRange(location: 10, length: 1), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 10, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @use")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 6, effectiveRange: nil))
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})
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// Test adding text right at the start of a mention link, to check that the link is removed
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content = NSMutableAttributedString(string: "Hello @user")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 5))
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checkMentionLinkEditorHandling(content: content, replacementText: "a", replacementRange: NSRange(location: 6, length: 0), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 7, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello a@user")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 7, effectiveRange: nil))
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})
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// Test that removing one link does not affect the other
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content = NSMutableAttributedString(string: "Hello @user1 @user2")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 6))
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content.addAttribute(.link, value: "damus:5678", range: NSRange(location: 13, length: 6))
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checkMentionLinkEditorHandling(content: content, replacementText: "", replacementRange: NSRange(location: 18, length: 1), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 18, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @user1 @user")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 13, effectiveRange: nil))
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XCTAssertNotNil(newManuallyEditedContent.attribute(.link, at: 6, effectiveRange: nil))
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})
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// Test that replacing a whole range intersecting with two links removes both links
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content = NSMutableAttributedString(string: "Hello @user1 @user2")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 6))
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content.addAttribute(.link, value: "damus:5678", range: NSRange(location: 13, length: 6))
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checkMentionLinkEditorHandling(content: content, replacementText: "a", replacementRange: NSRange(location: 10, length: 4), shouldBeAbleToChangeAutomatically: false, expectedNewCursorIndex: 11, handleNewContent: { newManuallyEditedContent in
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XCTAssertEqual(newManuallyEditedContent.string, "Hello @useauser2")
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 6, effectiveRange: nil))
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XCTAssertNil(newManuallyEditedContent.attribute(.link, at: 11, effectiveRange: nil))
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})
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// Test that replacing a whole range including two links removes both links naturally
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content = NSMutableAttributedString(string: "Hello @user1 @user2, how are you?")
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content.addAttribute(.link, value: "damus:1234", range: NSRange(location: 6, length: 6))
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content.addAttribute(.link, value: "damus:5678", range: NSRange(location: 13, length: 6))
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checkMentionLinkEditorHandling(content: content, replacementText: "", replacementRange: NSRange(location: 5, length: 28), shouldBeAbleToChangeAutomatically: true)
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}
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}
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func checkMentionLinkEditorHandling(
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content: NSMutableAttributedString,
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replacementText: String,
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replacementRange: NSRange,
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shouldBeAbleToChangeAutomatically: Bool,
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expectedNewCursorIndex: Int? = nil,
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handleNewContent: ((NSMutableAttributedString) -> Void)? = nil) {
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let bindingContent: Binding<NSMutableAttributedString> = Binding(get: {
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return content
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}, set: { newValue in
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handleNewContent?(newValue)
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})
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let coordinator: TextViewWrapper.Coordinator = TextViewWrapper.Coordinator(attributedText: bindingContent, getFocusWordForMention: nil, updateCursorPosition: { newCursorIndex in
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if let expectedNewCursorIndex {
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XCTAssertEqual(newCursorIndex, expectedNewCursorIndex)
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}
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})
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let textView = UITextView()
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textView.attributedText = content
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XCTAssertEqual(coordinator.textView(textView, shouldChangeTextIn: replacementRange, replacementText: replacementText), shouldBeAbleToChangeAutomatically, "Expected shouldChangeTextIn to return \(shouldBeAbleToChangeAutomatically), but was \(!shouldBeAbleToChangeAutomatically)")
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}
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