fix: tests for e2e testing in CI

.github/workflows/swift-ci.yml

@@ -1,7 +1,7 @@
 name: Swift CI
 on:
   pull_request:
-  push: 
+  push:
     branches: ['main']
 
 defaults:
@@ -13,7 +13,8 @@ permissions:
 
 jobs:
   format:
-    runs-on: macos-latest
+    name: Format (lint)
+    runs-on: hiero-client-sdk-linux-large
     steps:
       - name: Harden Runner
         uses: step-security/harden-runner@0080882f6c36860b6ba35c610c98ce87d4e2f26f # v2.10.2
@@ -23,73 +24,110 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
-      - name: Install swift-format
-        run: brew install swift-format
-
-      - name: Format
-        run: swift format lint --strict --configuration .swift-format.json --recursive --parallel Sources/ Tests/ Examples/ Package.swift
-
-  build:
-    strategy:
-      matrix:
-        swift: ["5.9", "5.10"]
-        os: [macos-13, macos-14]
-
-    runs-on: ${{ matrix.os }}
-    steps:
-      - name: Harden Runner
-        uses: step-security/harden-runner@0080882f6c36860b6ba35c610c98ce87d4e2f26f # v2.10.2
-        with:
-          egress-policy: audit
-
-      - name: Setup Swift
-        uses: swift-actions/setup-swift@3aed395c5397f62deb91d8fe7af1418a9ae4d16f # v2.1.0
+      - name: Install system deps for Swift
+        run: |
+          set -euxo pipefail
+          sudo apt-get update
+          sudo apt-get install -y \
+            git curl unzip xz-utils ca-certificates pkg-config \
+            clang libicu-dev libxml2-dev libsqlite3-dev zlib1g-dev \
+            libcurl4-openssl-dev libssl-dev
+
+      - name: Setup Swift (toolchain)
+        uses: SwiftyLab/setup-swift@4bbb093f8c68d1dee1caa8b67c681a3f8fe70a91 # v1.12.0
         with:
-          swift-version: ${{ matrix.swift }}
-
-      - name: Checkout Code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-
-      - name: Cache
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
-        with:
-          path: sdk/swift/.build
-          key: ${{ runner.os }}-${{ matrix.swift }}-spm-${{ github.job }}-${{ hashFiles('**/Package.resolved') }}
-          restore-keys: |
-            ${{ runner.os }}-${{ matrix.swift }}-spm-
-
-      - name: Build
-        run: swift build
+          swift-version: '5.9'
+
+      - name: Build swift-format
+        run: |
+          set -euxo pipefail
+          git clone --depth=1 https://github.com/apple/swift-format.git .swift-format-src
+          pushd .swift-format-src
+          swift build -c release
+          echo "$PWD/.build/release" >> $GITHUB_PATH
+          popd
+          swift-format --version || true
+
+      - name: Format (lint)
+        run: |
+          swift-format lint --strict --configuration .swift-format.json --recursive --parallel Sources/ Tests/ Examples/ Package.swift
 
   test:
+    name: Build and Test SDK
     strategy:
       matrix:
         swift: ["5.9", "5.10"]
-        os: [macos-13, macos-14]
+    runs-on: hiero-client-sdk-linux-large
+    env:
+      SOLO_CLUSTER_NAME: solo
+      SOLO_NAMESPACE: solo
+      SOLO_CLUSTER_SETUP_NAMESPACE: solo-cluster
+      SOLO_DEPLOYMENT: solo-deployment
+      KIND_IMAGE: kindest/node:v1.32.2   # pin to a stable image
 
-    needs: [build]
-    runs-on: ${{ matrix.os }}
     steps:
       - name: Harden Runner
-        uses: step-security/harden-runner@0080882f6c36860b6ba35c610c98ce87d4e2f26f # v2.10.2
+        uses: step-security/harden-runner@0080882f6c36860b6ba35c610c98ce87d4e2f26f
         with:
           egress-policy: audit
 
       - name: Setup Swift
-        uses: swift-actions/setup-swift@3aed395c5397f62deb91d8fe7af1418a9ae4d16f # v2.1.0
+        uses: SwiftyLab/setup-swift@4bbb093f8c68d1dee1caa8b67c681a3f8fe70a91 # v1.12.0
         with:
           swift-version: ${{ matrix.swift }}
 
       - name: Checkout Code
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
 
-      - name: Cache Code
-        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+      - name: Cache SPM build dir
+        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57
         with:
-          path: sdk/swift/.build
+          path: .build
           key: ${{ runner.os }}-${{ matrix.swift }}-spm-${{ github.job }}-${{ hashFiles('**/Package.resolved') }}
           restore-keys: |
             ${{ runner.os }}-${{ matrix.swift }}-spm-
 
-      - name: Test
-        run: swift test
+      - name: Install system dependencies for Swift/gRPC
+        run: |
+          set -euxo pipefail
+          sudo apt-get update
+          sudo apt-get install -y \
+            git curl jq coreutils ca-certificates \
+            clang libicu-dev libxml2-dev libsqlite3-dev zlib1g-dev \
+            libcurl4-openssl-dev libssl-dev pkg-config \
+            protobuf-compiler
+
+      - name: Verify Swift installation
+        run: |
+          swift --version
+          which swift
+          swift package --version
+
+      - name: Build SDK and TCK
+        run: |
+          swift build
+
+      - name: Run unit tests (HieroTests)
+        run: swift test --filter HieroTests
+
+      - name: Prepare Hiero Solo
+        id: solo
+        uses: hiero-ledger/hiero-solo-action@6a1a77601cf3e69661fb6880530a4edf656b40d5 # v0.14.0
+        with:
+          installMirrorNode: true
+          mirrorNodeVersion: v0.142.0
+          hieroVersion: v0.68.0
+
+      - name: Write .env for tests
+        run: |
+          umask 077
+          {
+            echo "TEST_NETWORK_NAME=localhost"
+            echo "TEST_RUN_NONFREE=1"
+            echo "TEST_OPERATOR_ID=0.0.2"
+            echo "TEST_OPERATOR_KEY=302e020100300506032b65700422042091132178e72057a1d7528025956fe39b0b847f200ab59b2fdd367017f3087137"
+          } > .env
+          cat .env
+
+      - name: Run integration tests (HieroE2ETests)
+        run: swift test --filter HieroE2ETests

Examples/CreateUpdateDeleteNode/main.swift

@@ -3,7 +3,6 @@
 import Foundation
 import Hiero
 import HieroExampleUtilities
-import Network
 import SwiftDotenv
 
 // Set the paths **HERE** for the json files provided by solo.

Package.swift

@@ -109,6 +109,8 @@ let package = Package(
         .package(url: "https://github.com/attaswift/BigInt.git", .upToNextMajor(from: "5.2.0")),
         // Currently, only used for keccak256
         .package(url: "https://github.com/krzyzanowskim/OpenSSL-Package.git", .upToNextMajor(from: "3.3.2000")),
+        .package(url: "https://github.com/krzyzanowskim/CryptoSwift.git", from: "1.8.0"),
+        .package(url: "https://github.com/apple/swift-crypto.git", .upToNextMajor(from: "3.0.0")),
     ],
     targets: [
         .target(
@@ -140,6 +142,8 @@ let package = Package(
                 .product(name: "secp256k1", package: "secp256k1.swift"),
                 .product(name: "BigInt", package: "BigInt"),
                 .product(name: "OpenSSL", package: "OpenSSL-Package"),
+                .product(name: "CryptoSwift", package: "CryptoSwift"),
+                .product(name: "Crypto", package: "swift-crypto"),
             ]
             // todo: find some way to enable these locally.
             // swiftSettings: [

Sources/Hiero/AnyTransaction.swift

@@ -63,6 +63,8 @@ internal enum ServicesTransactionDataList {
     case hintsPartialSignature([Com_Hedera_Hapi_Services_Auxiliary_Hints_HintsPartialSignatureTransactionBody])
     case crsPublication([Com_Hedera_Hapi_Services_Auxiliary_Hints_CrsPublicationTransactionBody])
     case atomicBatch([Proto_AtomicBatchTransactionBody])
+    case lambdaSstore([Com_Hedera_Hapi_Node_Hooks_LambdaSStoreTransactionBody])
+    case hookDispatch([Com_Hedera_Hapi_Node_Hooks_HookDispatchTransactionBody])
 
     internal mutating func append(_ transaction: Proto_TransactionBody.OneOf_Data) throws {
         switch (self, transaction) {
@@ -298,6 +300,14 @@ internal enum ServicesTransactionDataList {
             array.append(data)
             self = .atomicBatch(array)
 
+        case (.lambdaSstore(var array), .lambdaSstore(let data)):
+            array.append(data)
+            self = .lambdaSstore(array)
+
+        case (.hookDispatch(var array), .hookDispatch(let data)):
+            array.append(data)
+            self = .hookDispatch(array)
+
         default:
             throw HError.fromProtobuf("mismatched transaction types")
         }
@@ -370,6 +380,8 @@ extension ServicesTransactionDataList: TryFromProtobuf {
         case .tokenCancelAirdrop(let data): value = .tokenCancelAirdrop([data])
         case .tokenClaimAirdrop(let data): value = .tokenClaimAirdrop([data])
         case .atomicBatch(let data): value = .atomicBatch([data])
+        case .lambdaSstore(let data): value = .lambdaSstore([data])
+        case .hookDispatch(let data): value = .hookDispatch([data])
         case .stateSignatureTransaction:
             throw HError.fromProtobuf("Unsupported transaction `StateSignatureTransaction`")
         case .hintsPreprocessingVote:

Sources/Hiero/Client/ManagedNetwork.swift

@@ -35,10 +35,10 @@ internal actor NetworkUpdateTask: Sendable {
         self.managedNetwork = managedNetwork
         self.eventLoop = eventLoop
 
-        if let updatePeriod {
-            task = Self.makeTask(
-                eventLoop, managedNetwork, ManagedNetwork.networkFirstUpdateDelay, updatePeriod, shard, realm)
-        }
+        // if let updatePeriod {
+        //     task = Self.makeTask(
+        //         eventLoop, managedNetwork, ManagedNetwork.networkFirstUpdateDelay, updatePeriod, shard, realm)
+        // }
     }
 
     private static func makeTask(

Sources/Hiero/Contract/ContractFunctionSelector.swift

@@ -261,7 +261,7 @@ private struct KeccakHasher {
     }
 
     mutating func finalize() -> Data {
-        let output = Crypto.Sha3.keccak256(buffer!)
+        let output = CryptoNamespace.Sha3.keccak256(buffer!)
         buffer = nil
 
         return output

Sources/Hiero/Contract/MirrorNodeContractQuery.swift

@@ -4,6 +4,10 @@ import Foundation
 import GRPC
 import HieroProtobufs
 
+#if canImport(FoundationNetworking)
+    import FoundationNetworking
+#endif
+
 /// MirrorNodeContractQuery returns a result from EVM execution such as cost-free execution of read-only smart
 /// contract queries, gas estimation, and transient simulations of read-write operations.
 public class MirrorNodeContractQuery: ValidateChecksums {
@@ -107,7 +111,25 @@ public class MirrorNodeContractQuery: ValidateChecksums {
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
 
         /// Send the request.
-        let (data, response) = try await URLSession.shared.data(for: request)
+        #if canImport(FoundationNetworking)
+            // Linux: Use callback-based API wrapped in continuation
+            let (data, response): (Data, URLResponse) = try await withCheckedThrowingContinuation { continuation in
+                URLSession.shared.dataTask(with: request) { data, response, error in
+                    if let error = error {
+                        continuation.resume(throwing: error)
+                        return
+                    }
+                    guard let data = data, let response = response else {
+                        continuation.resume(throwing: URLError(.badServerResponse))
+                        return
+                    }
+                    continuation.resume(returning: (data, response))
+                }.resume()
+            }
+        #else
+            // macOS/iOS: Use modern async/await API
+            let (data, response) = try await URLSession.shared.data(for: request)
+        #endif
 
         /// Make sure a good response was returned.
         guard let httpResponse = response as? HTTPURLResponse,

Sources/Hiero/Crypto/Crypto+k256Digest.swift

@@ -2,6 +2,6 @@
 
 import secp256k1
 
-extension Crypto {
+extension CryptoNamespace {
     internal typealias SecpDigest = Digest
 }

Sources/Hiero/Crypto/Crypto.swift

@@ -1,11 +1,35 @@
 // SPDX-License-Identifier: Apache-2.0
 
-// used as a namespace
-internal enum Crypto {}
+// MARK: - Crypto Namespace
+//
+// This file defines the `CryptoNamespace` enum, which serves as a namespace
+// for organizing cryptographic functionality used throughout the Hiero SDK.
+//
+// The namespace pattern avoids polluting the global namespace with generic names
+// like "Aes" or "Hmac", and provides a clear organizational structure for
+// crypto-related code.
+//
+// Extensions in other files add functionality to this namespace:
+// - CryptoAes.swift: AES encryption/decryption
+// - CryptoSha2.swift: SHA-256, SHA-384, SHA-512
+// - CryptoSha3.swift: Keccak-256
+// - Crypto+k256Digest.swift: secp256k1 digest types
 
-extension Crypto {
+/// Namespace for cryptographic primitives used by the Hiero SDK.
+///
+/// This enum is never instantiated - it exists solely as a namespace to
+/// organize cryptographic functionality.
+internal enum CryptoNamespace {}
+
+// MARK: - HMAC Algorithm Selection
+
+extension CryptoNamespace {
+    /// HMAC (Hash-based Message Authentication Code) algorithm variants.
+    ///
+    /// Specifies which hash function to use with HMAC for key derivation
+    /// and message authentication.
     internal enum Hmac {
-        // case sha1
-        case sha2(Crypto.Sha2)
+        /// HMAC using a SHA-2 family hash function.
+        case sha2(CryptoNamespace.Sha2)
     }
 }