[ECO-5109] Spec complete for Connection #125
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WalkthroughThe changes introduced in this pull request enhance the functionality of the chat client by implementing new connection management features and updating existing structures. A new asynchronous function for monitoring connection status has been added, alongside modifications to the Changes
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Actionable comments posted: 7
🧹 Outside diff range and nitpick comments (17)
Sources/AblyChat/AblyCocoaExtensions/Ably+Dependencies.swift (1)
8-9: Maintain consistent spacing in file.There's an extra blank line between the previous extension and the new one. While this is a minor issue, maintaining consistent spacing between extensions would improve readability.
extension ARTRealtimeChannel: RealtimeChannelProtocol {} - extension ARTConnection: ConnectionProtocol {}Tests/AblyChatTests/Mocks/MockConnection.swift (2)
25-67: Implementation needed for mock methodsAll protocol methods currently throw
fatalError("Not implemented"). While this is a common starting point for mocks, the PR objectives indicate this should be spec complete. These implementations are crucial for testing the Connection feature properly.Consider implementing:
- Basic state management in
connect()andclose()- Event handling in
on/once/offmethods- Recovery key generation in
createRecoveryKey()- Ping response simulation in
ping()Would you like me to help:
- Generate implementations for these methods based on the spec?
- Create test cases to verify the implementations?
4-68: Consider adding usage documentation and test patternsWhile the mock structure is well-designed, consider adding:
- Documentation comments explaining common usage patterns
- Examples of how to configure the mock for different test scenarios
- Constants for commonly used test states
This will help other developers effectively use this mock in their tests.
Example documentation:
/// A mock implementation of ConnectionProtocol for testing purposes. /// /// Example usage: /// ``` /// let mockConnection = MockConnection(state: .connected) /// let client = MockChatClient(connection: mockConnection) /// ``` /// /// Common test scenarios: /// - Connection success: Initialize with state = .connected /// - Connection failure: Initialize with state = .failed and appropriate errorReason /// - Recovery scenario: Initialize with valid recoveryKeySources/AblyChat/ChatClient.swift (1)
29-29: Add a TODO comment to track future improvementsAs mentioned in the PR description, the current implementation is temporary and ideally should expose
ConnectiononARTRealtimeProtocol. Consider adding a TODO comment here to ensure this technical debt is tracked in the code.- connection = DefaultConnection(realtime: realtime) + // TODO: [ECO-XXXX] Refactor to expose Connection on ARTRealtimeProtocol in ably-cocoa + connection = DefaultConnection(realtime: realtime)Sources/AblyChat/Dependencies.swift (2)
8-8: LGTM! Consider enhancing documentation.The addition of
Connectionassociated type and property aligns well with the Connection spec implementation. While this is a temporary solution untilConnectioncan be exposed onARTRealtimeProtocol, the implementation is clean and the TODO is well documented with a linked issue.Consider adding documentation comments for the new
connectionproperty to explain its purpose and usage.associatedtype Connection: ConnectionProtocol // TODO: Expose `Connection` on ARTRealtimeProtocol so it can be used from RealtimeClientProtocol - https://github.com/ably-labs/ably-chat-swift/issues/123 +/// The connection instance that can be used to monitor the connection state of the realtime client. var connection: Connection { get }Also applies to: 13-14
28-28: Add documentation for ConnectionProtocol.While the protocol definition is clean and correctly marked as public, it would benefit from documentation explaining its purpose and relationship with ARTConnectionProtocol.
+/// Protocol defining the requirements for a connection object that manages the realtime connection state. +/// Conforming types must implement both `ARTConnectionProtocol` for Ably-specific connection functionality +/// and `Sendable` for thread-safe usage across concurrent contexts. public protocol ConnectionProtocol: ARTConnectionProtocol, Sendable {}Sources/AblyChat/Connection.swift (1)
Line range hint
43-58: Consider enhancing error handling in ConnectionStatusChangeSimilar to the Connection protocol, consider improving the optional error handling. Additionally, the
retryInproperty could benefit from documentation explaining its usage, particularly for states where retry isn't applicable (like.failed).public struct ConnectionStatusChange: Sendable { public var current: ConnectionStatus public var previous: ConnectionStatus // TODO: (https://github.com/ably-labs/ably-chat-swift/issues/12): consider how to avoid the need for an unwrap public var error: ARTErrorInfo? + /// Time interval in seconds before the next reconnection attempt. + /// This value is only meaningful for states that support reconnection + /// (e.g., disconnected, suspended). For other states like `failed`, + /// this value should be ignored. public var retryIn: TimeIntervalTests/AblyChatTests/Mocks/MockRealtime.swift (2)
31-31: Consider reducing duplication in required initializers.The connection initialization is repeated across all three required initializers. Consider extracting common initialization logic to a private helper method.
+ private static func defaultConnection() -> MockConnection { + .init() + } + required init(options _: ARTClientOptions) { channels = .init(channels: []) - connection = .init() + connection = Self.defaultConnection() paginatedCallback = nil } required init(key _: String) { channels = .init(channels: []) - connection = .init() + connection = Self.defaultConnection() paginatedCallback = nil } required init(token _: String) { channels = .init(channels: []) - connection = .init() + connection = Self.defaultConnection() paginatedCallback = nil }Also applies to: 37-37, 43-43
54-54: LGTM! Consider implementing core methods.The factory method changes are consistent with the initializer. However, note that many core methods still throw
fatalError("Not implemented"). Consider prioritizing the implementation of essential methods likeconnect()andclose()for more realistic testing scenarios.Would you like help implementing these core methods or creating GitHub issues to track their implementation?
Also applies to: 57-57
Example/AblyChatExample/Mocks/MockRealtime.swift (3)
Line range hint
1-5: Add more context to the TODO commentThe TODO comment should include:
- The ticket/issue number for tracking
- The conditions or timeline for removal
- The replacement approach
- /// A mock implementation of `RealtimeClientProtocol`. It only exists so that we can construct an instance of `DefaultChatClient` without needing to create a proper `ARTRealtime` instance (which we can't yet do because we don't have a method for inserting an API key into the example app). TODO remove this once we start building the example app + /// A mock implementation of `RealtimeClientProtocol` for testing purposes. + /// + /// This mock exists to enable `DefaultChatClient` construction without a real `ARTRealtime` instance, + /// as we currently lack API key insertion capability in the example app. + /// + /// TODO: [ECO-XXXX] Remove this mock implementation when: + /// 1. The example app implementation is complete + /// 2. API key management is implemented + /// 3. Real `ARTRealtime` instance can be used
6-6: Consider making connection initialization more flexibleThe connection property is initialized with default values, which might limit testing scenarios. Consider making it injectable through the constructor.
- let connection = Connection() + let connection: Connection + + init(connection: Connection = Connection()) { + self.connection = connection + super.init() + }
Line range hint
133-365: Update create() method to support connection injectionThe static create method should support injecting a custom connection instance to align with the earlier suggestion of making the connection property injectable.
- static func create() -> MockRealtime { - MockRealtime(key: "") + /// Creates an instance of MockRealtime with optional custom connection + /// - Parameter connection: Optional custom connection instance + /// - Returns: Configured MockRealtime instance + static func create(connection: Connection = Connection()) -> MockRealtime { + let client = MockRealtime(key: "") + client.connection = connection + return client }Example/AblyChatExample/Mocks/MockClients.swift (1)
8-8: LGTM! Consider adding test coverage.The connection property is correctly implemented and initialized. The nonisolated modifier is appropriate since Connection protocol methods are nonisolated.
Would you like me to help create test cases for connection state handling? This would align with the PR objective mentioning todos for test implementation.
Also applies to: 13-13
Example/AblyChatExample/ContentView.swift (2)
Line range hint
303-311: Enhance reaction animation configuration and implementationThe animation implementation could benefit from better configuration management and smoother transitions.
Consider these improvements:
struct Reaction: Identifiable { let id: UUID let emoji: String var xPosition: CGFloat var yPosition: CGFloat var scale: CGFloat var opacity: Double var rotationAngle: Double var rotationSpeed: Double var duration: Double + + // Animation configuration + static let config = ReactionAnimationConfig( + minRotationSpeed: 30, + maxRotationSpeed: 360, + minDuration: 2, + maxDuration: 4 + ) } + struct ReactionAnimationConfig { + let minRotationSpeed: Double + let maxRotationSpeed: Double + let minDuration: Double + let maxDuration: Double + } func startRotation(reaction: Reaction) { if let index = reactions.firstIndex(where: { $0.id == reaction.id }) { - reactions[index].rotationAngle += 360 // Continuous rotation over time + // Smooth continuous rotation with easing + withAnimation(.linear(duration: reaction.duration)) { + reactions[index].rotationAngle += 360 + } } }Also applies to: 365-370
149-162: Add tests for connection status monitoringAs mentioned in the PR objectives, tests are needed for this implementation. Consider adding tests for:
- Connection status changes in mock mode
- Connection status changes in live mode
- Error handling scenarios
- Task cancellation behavior
Would you like me to help create a test suite for the connection monitoring functionality?
Sources/AblyChat/DefaultConnection.swift (2)
61-67: Unnecessary use of nestedTaskinside timer handlerWrapping the handler code within an additional
Taskis redundant sincesetTimeralready creates aTask. This adds unnecessary complexity.Simplify the code by removing the nested
Taskwithin the timer handler.Apply this diff:
await timerManager.setTimer(interval: 5.0) { [timerManager] in - Task { // (CHA-CS5a4) If a transient disconnect timer expires... await timerManager.cancelTimer() subscription.emit(statusChange) - } }
101-103: SimplifyhasRunningTaskmethodThe
hasRunningTaskmethod can be made more concise by returning a Boolean expression directly.Apply this diff to simplify the method:
internal func hasRunningTask() -> Bool { - currentTask != nil + return currentTask != nil }
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📒 Files selected for processing (10)
Example/AblyChatExample/ContentView.swift(2 hunks)Example/AblyChatExample/Mocks/MockClients.swift(2 hunks)Example/AblyChatExample/Mocks/MockRealtime.swift(2 hunks)Sources/AblyChat/AblyCocoaExtensions/Ably+Dependencies.swift(1 hunks)Sources/AblyChat/ChatClient.swift(1 hunks)Sources/AblyChat/Connection.swift(1 hunks)Sources/AblyChat/DefaultConnection.swift(1 hunks)Sources/AblyChat/Dependencies.swift(2 hunks)Tests/AblyChatTests/Mocks/MockConnection.swift(1 hunks)Tests/AblyChatTests/Mocks/MockRealtime.swift(3 hunks)
🔇 Additional comments (14)
Sources/AblyChat/AblyCocoaExtensions/Ably+Dependencies.swift (1)
9-9: Verify protocol conformance against specification.
While the extension is correctly placed alongside other protocol conformances, we should verify that ARTConnection fully implements all requirements specified in CHA-CS5a3 from the referenced specification.
Consider documenting that this is a temporary implementation, as noted in the PR description. The ideal solution would involve exposing Connection on ARTRealtimeProtocol in the ably-cocoa library.
✅ Verification successful
Let me search for more context about the protocol requirements.
Protocol conformance is correctly implemented
The extension is valid as ConnectionProtocol is a marker protocol that combines ARTConnectionProtocol with Sendable. Since ARTConnection already implements ARTConnectionProtocol, and the protocol adds no additional requirements beyond Sendable, the empty extension is sufficient.
The implementation aligns with the architectural pattern seen in mocks and other parts of the codebase, where ConnectionProtocol is used as a type constraint for dependency injection and testing purposes.
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Tests/AblyChatTests/Mocks/MockConnection.swift (3)
1-4: LGTM! Well-structured class declaration.
The class is properly declared as final and inherits from NSObject for Objective-C compatibility while implementing ConnectionProtocol.
17-23: LGTM! Well-designed initializer.
The initializer provides good flexibility for testing with optional parameters and sensible defaults.
9-9: Verify the hardcoded maxMessageSize value
Setting maxMessageSize to 0 seems incorrect as it suggests no messages can be sent. Consider:
- Using a realistic default value that matches production behavior
- Making it configurable through the initializer for testing different scenarios
✅ Verification successful
Let me search for more context about the connection protocol and its implementation.
Let me try a different search pattern to find more context.
The hardcoded maxMessageSize=0 is acceptable in this mock
The maxMessageSize property is part of the ConnectionProtocol which extends ARTConnectionProtocol from the Ably SDK. Since this is a mock class (MockConnection) used only in tests, and the property is never actually used in any meaningful way (all methods throw fatalError), the zero value is acceptable. The mock is simply satisfying the protocol requirements without needing real functionality.
This is further supported by:
- The mock in
Example/AblyChatExample/Mocks/MockRealtime.swiftalso defaultsmaxMessageSizeto 0 - The actual connection implementation in
DefaultConnection.swiftdoesn't even expose this property as it's not part of the coreConnectionprotocol used by the app
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Sources/AblyChat/ChatClient.swift (3)
Line range hint 1-9: LGTM: Protocol definition follows best practices
The addition of the connection property to the ChatClient protocol is well-structured:
- Uses protocol composition with
any Connectionfor type erasure - Maintains read-only access which is appropriate for connection state
- Follows the same pattern as other protocol requirements
19-21: LGTM: Well-documented implementation with specification references
The implementation properly documents the connection property with clear specification references (CHA-CS1, CHA-CS4), making the code self-documenting and traceable to requirements.
21-21: Verify Connection protocol implementation against specification
Since this PR implements the Connection specification (referenced in PR #227), we should verify that the Connection protocol implementation meets all requirements.
✅ Verification successful
Connection protocol implementation meets all specification requirements
The verification shows that the Connection protocol and its DefaultConnection implementation fully comply with the specification requirements:
- Connection status requirements (CHA-CS1a-f): All required states are defined in
ConnectionStatusenum - Connection exposure (CHA-CS2a,b): Status and error are exposed via protocol properties
- Initial state handling (CHA-CS3): Implementation correctly initializes from realtime client
- Status change observation (CHA-CS4a-d): Full event details provided via
onStatusChange - Transient disconnect handling (CHA-CS5a1-4,b): Comprehensive implementation with timer-based suppression
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Sources/AblyChat/Dependencies.swift (1)
8-8: Verify implementation against specification.
Please ensure that the ConnectionProtocol implementation aligns with all requirements from the specification PR (ably/specification#227).
Also applies to: 28-28
✅ Verification successful
Let me gather more information about the specification and protocol requirements.
Let me check the actual Connection implementation files to understand the protocol conformance.
Implementation aligns with specification requirements
The ConnectionProtocol implementation through DefaultConnection fully implements the required connection behavior. The code includes detailed specification references (CHA-CS*) and implements all key requirements:
- Connection status management (CHA-CS1, CHA-CS2a)
- Error handling (CHA-CS2b)
- Initial state handling (CHA-CS3)
- Status change notifications (CHA-CS4)
- Transient disconnection handling (CHA-CS5)
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Sources/AblyChat/Connection.swift (3)
11-22: Well-documented connection states with clear spec references
The connection states are comprehensively documented with clear references to the specification (CHA-CS1a through CHA-CS1f). The states cover the complete connection lifecycle.
24-41: Verify the mapping of closing/closed states to failed
The initializer maps closing and closed states to .failed. While this might be intentional, it's worth verifying if these states should have distinct representations as they might represent different scenarios.
✅ Verification successful
Mapping of closing/closed states to failed is correct
Looking at the ConnectionStatus enum definition and its documentation comments, it's clear that the enum is designed to represent a simplified set of connection states. The .failed state is documented as being used "when the client is disconnected from the Ably servers due to some non-retriable failure", which appropriately encompasses both closing and closed states as they represent final, non-recoverable states of the connection.
The mapping aligns with the enum's design which focuses on representing the essential states needed for the chat functionality:
- initialized
- connecting
- connected
- disconnected (temporary)
- suspended (extended disconnection with retry)
- failed (non-retriable disconnection)
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Line range hint 1-8: Consider addressing the TODO with a more type-safe approach
The TODO comment suggests reconsidering the optional error property. Consider using a Result type or an enum with associated values to make error handling more explicit and type-safe.
✅ Verification successful
Let me gather more context about error handling patterns in the codebase.
Based on the extensive search results, I can see that ARTErrorInfo is widely used throughout the codebase for error handling, and there's a clear pattern of using Result types with ARTErrorInfo as the error type in several places. Let me check one more thing to understand the error handling patterns better.
Keep the optional error property as is
The current implementation of optional error property in the Connection protocol aligns with established patterns in the codebase:
- It matches the error handling pattern used in other parts of the codebase where
ARTErrorInfois consistently used as the error type - The optionality is appropriate since connection status can exist without an error
- The property follows the same pattern as
errorReasoninRoomLifecycleManager - The implementation is consistent with Ably's error handling patterns where errors are represented as optional
ARTErrorInfo
The TODO can be removed as the current implementation is the correct approach.
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Tests/AblyChatTests/Mocks/MockRealtime.swift (2)
21-21: LGTM! Clean initialization pattern.
The default parameter and property assignment follow Swift best practices.
Also applies to: 26-26
7-7: LGTM! Verify MockConnection implementation.
The connection property is correctly declared as immutable. The state management is delegated to MockConnection.
Let's verify the MockConnection implementation:
✅ Verification successful
MockConnection implementation is suitable for testing purposes
The MockConnection class correctly implements the ConnectionProtocol by:
- Declaring all required properties (id, key, maxMessageSize, state, errorReason, recoveryKey)
- Implementing all protocol methods, though with
fatalErrorstubs - Providing a flexible initializer for test configuration
The fatalError implementations are acceptable for a mock object as they can be implemented as needed for specific test cases.
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Sources/AblyChat/DefaultConnection.swift (1)
96-99: Avoid memory leaks by properly nullifying currentTask
After canceling currentTask, it's important to set it to nil to prevent retain cycles or memory leaks.
The code correctly sets currentTask to nil after cancellation.
There was a problem hiding this comment.
Actionable comments posted: 7
🧹 Outside diff range and nitpick comments (9)
Sources/AblyChat/Connection.swift (2)
Line range hint
43-56: Consider consolidating TODO commentsThe TODO comment about unwrapping appears twice in the file (here and in the Connection protocol). Since they reference the same issue #12, consider consolidating these comments or clarifying if they represent different aspects of the same issue.
Line range hint
1-56: Strong foundation for connection managementThe overall design provides a solid foundation for connection management with:
- Clear separation of concerns between status representation and change notifications
- Proper use of Swift concurrency features
- Type-safe state handling with comprehensive documentation
Consider documenting the rationale for mapping
closingandclosedstates tofailedin a code comment, as this might not be immediately obvious to future maintainers.Tests/AblyChatTests/Mocks/MockRealtime.swift (1)
29-44: Consider reducing initialization duplication.The three required initializers share identical initialization logic. Consider extracting the common initialization into a private helper method to improve maintainability.
+ private func commonInit() { + channels = .init(channels: []) + connection = .init() + paginatedCallback = nil + } + required init(options _: ARTClientOptions) { - channels = .init(channels: []) - connection = .init() - paginatedCallback = nil + commonInit() } required init(key _: String) { - channels = .init(channels: []) - connection = .init() - paginatedCallback = nil + commonInit() } required init(token _: String) { - channels = .init(channels: []) - connection = .init() - paginatedCallback = nil + commonInit() }Sources/AblyChat/DefaultConnection.swift (2)
3-18: Consider simplifying the connection management architectureThe current implementation using actors for state management, while thread-safe, introduces complexity with async property access. The developer's comment raises valid concerns about the architecture.
Consider these alternatives:
- Use Swift's
@Publishedproperty wrapper with Combine for reactive state management- Implement a simpler state machine pattern with atomic operations
Would you like me to propose a detailed alternative implementation?
130-141: Add state transition validation and documentationThe connection status management could benefit from:
- Validation of allowed state transitions
- Documentation of the state machine rules
Consider adding state transition validation:
private final actor ConnectionStatusManager { private(set) var status: ConnectionStatus = .disconnected private(set) var error: ARTErrorInfo? + /// Allowed state transitions as per CHA-CS specification + private let allowedTransitions: [ConnectionStatus: Set<ConnectionStatus>] = [ + .connected: [.disconnected, .suspended, .failed], + .disconnected: [.connecting, .connected, .suspended, .failed], + .connecting: [.connected, .disconnected, .suspended, .failed], + .suspended: [.connecting, .failed], + .failed: [] + ] + internal func updateStatus(to newStatus: ConnectionStatus) { + guard allowedTransitions[status]?.contains(newStatus) ?? false else { + assertionFailure("Invalid state transition from \(status) to \(newStatus)") + return + } status = newStatus }Example/AblyChatExample/Mocks/MockRealtime.swift (2)
Line range hint
1-7: Consider making connection property configurableThe connection property is currently initialized with default parameters, which might limit testing different scenarios. Consider making it injectable through the constructor.
final class MockRealtime: NSObject, RealtimeClientProtocol, Sendable { - let connection = Connection() + let connection: Connection + + init(connection: Connection = Connection()) { + self.connection = connection + super.init() + }
Line range hint
84-300: Enhance mock capabilities for integration testingThe current implementation with
fatalErrormakes it impossible to test integration scenarios. Consider implementing basic functionality for critical paths:
- Channel subscription and message publishing
- Connection state management
- Event handling
This would enable writing integration tests that verify the interaction between the chat client and the realtime client.
Would you like me to help create a more testable implementation of these critical paths?
Example/AblyChatExample/Mocks/MockClients.swift (1)
8-8: Consider parameterizing the initial connection statusThe connection is always initialized with a
.connectedstatus, which might not cover all test scenarios. Consider adding a parameter toMockChatClient.initto allow tests to specify the initial connection status.actor MockChatClient: ChatClient { // ... - init(realtime: RealtimeClient, clientOptions: ClientOptions?) { + init(realtime: RealtimeClient, clientOptions: ClientOptions?, initialConnectionStatus: ConnectionStatus = .connected) { self.realtime = realtime self.clientOptions = clientOptions ?? .init() - connection = MockConnection(status: .connected, error: nil) + connection = MockConnection(status: initialConnectionStatus, error: nil) rooms = MockRooms(clientOptions: self.clientOptions) }Also applies to: 13-13
Example/AblyChatExample/ContentView.swift (1)
149-162: Consider optimizing animation performance and memory managementThe current implementation of continuous rotation animation could impact performance and memory usage, especially with multiple concurrent reactions.
Consider these improvements:
- Use
withAnimation(.linear)with a finite duration instead of.repeatForever- Implement animation cleanup when reactions are removed
- Add a maximum limit to concurrent animations
func showReaction(_ emoji: String) { + // Limit concurrent animations + let maxConcurrentReactions = 10 + if reactions.count >= maxConcurrentReactions { + reactions.removeFirst() + } let screenWidth = screenWidth let centerX = screenWidth / 2 // Reduce the spread to 1/5th of the screen width let reducedSpreadRange = screenWidth / 5 // Random x position now has a smaller range, centered around the middle of the screen let startXPosition = CGFloat.random(in: centerX - reducedSpreadRange ... centerX + reducedSpreadRange) - let randomRotationSpeed = Double.random(in: 30 ... 360) // Random rotation speed + let randomRotationSpeed = Double.random(in: 90 ... 180) // Reduced range for better performance let duration = Double.random(in: 2 ... 4) let newReaction = Reaction( id: UUID(), emoji: emoji, xPosition: startXPosition, yPosition: screenHeight - 100, scale: 1.0, opacity: 1.0, rotationAngle: 0, // Initial angle rotationSpeed: randomRotationSpeed, duration: duration ) reactions.append(newReaction) // Remove the reaction after the animation completes DispatchQueue.main.asyncAfter(deadline: .now() + duration) { + // Cancel any ongoing animations + withAnimation(.linear(duration: 0.1)) { reactions.removeAll { $0.id == newReaction.id } + } } }
📜 Review details
Configuration used: CodeRabbit UI
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📒 Files selected for processing (10)
Example/AblyChatExample/ContentView.swift(2 hunks)Example/AblyChatExample/Mocks/MockClients.swift(2 hunks)Example/AblyChatExample/Mocks/MockRealtime.swift(2 hunks)Sources/AblyChat/AblyCocoaExtensions/Ably+Dependencies.swift(1 hunks)Sources/AblyChat/ChatClient.swift(1 hunks)Sources/AblyChat/Connection.swift(1 hunks)Sources/AblyChat/DefaultConnection.swift(1 hunks)Sources/AblyChat/Dependencies.swift(2 hunks)Tests/AblyChatTests/Mocks/MockConnection.swift(1 hunks)Tests/AblyChatTests/Mocks/MockRealtime.swift(3 hunks)
🚧 Files skipped from review as they are similar to previous changes (4)
- Sources/AblyChat/AblyCocoaExtensions/Ably+Dependencies.swift
- Sources/AblyChat/ChatClient.swift
- Sources/AblyChat/Dependencies.swift
- Tests/AblyChatTests/Mocks/MockConnection.swift
🔇 Additional comments (8)
Sources/AblyChat/Connection.swift (2)
11-22: LGTM! Well-documented connection states
The connection states are thoroughly documented with clear spec references (CHA-CS1a through CHA-CS1f).
4-6: Verify the TODO tracking issue
The TODO comment references issue #12 regarding unwrapping. Let's verify this is being tracked properly.
✅ Verification successful
TODO comment is properly tracked in issue #12
Based on the learnings and the GitHub issue details, this TODO is being actively tracked. The issue is open and contains a detailed analysis of the unwrapping concern, including a plan to evaluate the states where error properties need to be handled.
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Length of output: 1007
Tests/AblyChatTests/Mocks/MockRealtime.swift (3)
7-7: LGTM! Connection property aligns with PR objectives.
The addition of the connection property as an immutable property is well-implemented and aligns with the PR's goal of exposing the Connection functionality.
54-54: LGTM! Factory method properly updated.
The static factory method has been correctly updated to handle the new connection parameter while maintaining backward compatibility through default values.
Also applies to: 57-57
Line range hint 3-4: Track technical debt for proper mocking implementation.
The comment references an existing issue (#5) for implementing proper mocking. Ensure this technical debt is being tracked and prioritized appropriately.
✅ Verification successful
Technical debt for proper mocking implementation is being tracked
The issue (#5) "Decide how to do mocking in tests" is currently open and being tracked at #5. The technical debt has been properly documented and is visible in the project's issue tracker.
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Length of output: 163
Example/AblyChatExample/Mocks/MockClients.swift (2)
389-404: Previous review comment about enhancing mock implementation is still applicable
The current implementation has the same limitations mentioned in the previous review comment.
393-399: Verify implementation against specification
The PR objectives mention:
- A typo fix in spec (CHA-CS5a3) where "omitted" should be "emitted"
- A TODO for future resolution
However, these items are not reflected in the current implementation. Please ensure all specification requirements are addressed.
Example/AblyChatExample/ContentView.swift (1)
139-139: Previous review comment is still applicable
The implementation of connection monitoring still has the same issues as previously identified.
Also applies to: 149-162
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[1] - ably/specification#227 Note: CHA-CS5a3 has a typo in the spec. Omitted should be emitted. The typo has been fixed in the in-line spec comment in this commit.
Spec complete for Connection in line with [1] @ commit bf536c8
[1] - ably/specification#227
Note: CHA-CS5a3 has a typo in the spec. Omitted should be emitted. The typo has been fixed in the in-line spec comment in this commit.
Ideally we needed
Connectionexposed onARTRealtimeProtocolin ably-cocoa but this approach works fine for now. There is an issue commented as a todo to fix this. Same with adding tests.Summary by CodeRabbit
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