update unit tests and spm spec with Swift 5.5

Author: anhnguyenbitmark

Package.swift

@@ -1,10 +1,30 @@
-// swift-tools-version:4.0
+// swift-tools-version:5.5
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
 import PackageDescription
 
-let package = Package(name: "TweetNacl", products: [.library(name: "TweetNacl", targets: ["TweetNacl"])],
-            targets: [
-                .target(name: "CTweetNacl"),
-                .target(name: "TweetNacl", dependencies: ["CTweetNacl"]),
-                .testTarget(name: "TweetNaclTests", dependencies: ["TweetNacl"]),
-            ],
-            swiftLanguageVersions: [4])
+let package = Package(
+    name: "TweetNacl",
+    products: [
+        .library(
+            name: "TweetNacl",
+            targets: ["TweetNacl"]),
+    ],
+    dependencies: [],
+    targets: [
+        .target(name: "CTweetNacl"),
+        .target(
+            name: "TweetNacl",
+            dependencies: ["CTweetNacl"]),
+        .testTarget(
+            name: "TweetNaclTests",
+            dependencies: ["TweetNacl"],
+            resources: [
+                .process("SecretboxTestData.json"),
+                .process("BoxTestData.json"),
+                .process("ScalarMultiTestData.json"),
+                .process("SignTestData.json")
+            ]
+        ),
+    ]
+)

Tests/TweetNaclTests/NaclBox_Tests.swift

@@ -48,8 +48,7 @@ class NaclBox_Test: XCTestCase {
 
         let testSuite = XCTestSuite(name: NSStringFromClass(self))
 
-        let testBundle = Bundle(for: NaclBox_Test.self)
-        let fileURL = testBundle.url(forResource: "BoxTestData", withExtension: "json")
+        let fileURL = Bundle.module.url(forResource: "BoxTestData", withExtension: "json")
         let fileData = try! Data(contentsOf: fileURL!)
         let json = try! JSONSerialization.jsonObject(with: fileData, options: [])
         let arrayOfData = json as! [Array<String>]

Tests/TweetNaclTests/NaclScalarMulti_Tests.swift

@@ -77,8 +77,7 @@ class NaclScalarMulti_Tests: XCTestCase {
 
         let testSuite = XCTestSuite(name: NSStringFromClass(self))
 
-        let testBundle = Bundle(for: NaclSecretbox_Tests.self)
-        let fileURL = testBundle.url(forResource: "ScalarMultiTestData", withExtension: "json")
+        let fileURL = Bundle.module.url(forResource: "ScalarMultiTestData", withExtension: "json")
         let fileData = try! Data(contentsOf: fileURL!)
         let json = try! JSONSerialization.jsonObject(with: fileData, options: [])
         let arrayOfData = json as! [Array<String>]

Tests/TweetNaclTests/NaclSecretbox_Tests.swift

@@ -51,8 +51,7 @@ class NaclSecretbox_Tests: XCTestCase {
 
         let testSuite = XCTestSuite(name: NSStringFromClass(self))
 
-        let testBundle = Bundle(for: NaclSecretbox_Tests.self)
-        let fileURL = testBundle.url(forResource: "SecretboxTestData", withExtension: "json")
+        let fileURL = Bundle.module.url(forResource: "SecretboxTestData", withExtension: "json")
         let fileData = try! Data(contentsOf: fileURL!)
         let jsonDecoder = JSONDecoder()
         let arrayOfData = try! jsonDecoder.decode([[String]].self, from: fileData)