Add Tree concurrency tests (#169)

* Add Tree concurrency tests

* Update swift-integration.yml

* Update swift-integration.yml

* Update swift-integration.yml

.github/workflows/swift-integration.yml

@@ -8,15 +8,15 @@ on:
 
 jobs:
   build:
-    runs-on: macos-13
+    runs-on: macos-latest
     steps:
     - uses: maxim-lobanov/setup-xcode@v1
       with:
         xcode-version: latest-stable
-    - uses: actions/checkout@v3
-    - name: Setup Docker on macOS using Colima, Lima-VM, and Homebrew.
-      uses: douglascamata/setup-docker-macos-action@main
-      id: docker
-    - run: docker-compose -f docker/docker-compose-ci.yml up --build -d
+    - uses: actions/checkout@v4
+    - name: Setup yorkie server
+      run: brew install yorkie
+    - name: Run yorkie server
+      run: yorkie server & 
     - name: Run tests
       run: swift test --enable-code-coverage -v --filter YorkieIntegrationTests

Sources/Core/Client.swift

@@ -197,7 +197,7 @@ public actor Client {
 
         let builder: ClientConnection.Builder
         if rpcAddress.isSecured {
-            builder = ClientConnection.usingTLSBackedByNetworkFramework(on: self.group)
+            builder = ClientConnection.usingPlatformAppropriateTLS(for: self.group)
         } else {
             builder = ClientConnection.insecure(group: self.group)
         }
@@ -226,7 +226,6 @@ public actor Client {
     }
 
     deinit {
-        try? self.group.syncShutdownGracefully()
         try? self.rpcClient.channel.close().wait()
     }
 

Sources/Document/Change/ChangeContext.swift

@@ -37,6 +37,15 @@ class ChangeContext {
         self.delimiter = TimeTicket.Values.initialDelimiter
     }
 
+    func deepcopy() -> ChangeContext {
+        let clone = ChangeContext(id: self.id, root: self.root.deepcopy(), message: self.message)
+
+        clone.operations = self.operations
+        clone.delimiter = self.delimiter
+
+        return clone
+    }
+
     /**
      * `push` pushes the given operation to this context.
      */

Sources/Document/Json/JSONTree.swift

@@ -259,6 +259,15 @@ public class JSONTree {
         self.tree = tree
     }
 
+    func deepcopy() -> JSONTree {
+        let clone = JSONTree(initialRoot: self.initialRoot)
+
+        clone.context = self.context?.deepcopy()
+        clone.tree = self.tree?.deepcopy() as? CRDTTree
+
+        return clone
+    }
+
     /**
      * `id` returns the ID of this tree.
      */