Implemented the "delete(at: )" function for the FileService service in the module target.

Sources/Library/Protocols/FileServicing.swift

@@ -8,6 +8,7 @@ public protocol FileServicing {
     
     // MARK: Functions
     
+    func delete(at url: URL) async throws (FileServiceError)
     func exists(at url: URL) async throws (FileServiceError) -> Bool
     
 }
@@ -16,8 +17,8 @@ public protocol FileServicing {
 
 public enum FileServiceError: Error, Equatable {
     case folderNotCreated
-    case folderNotDeleted
     case urlAlreadyExists
+    case urlNotDeleted
     case urlNotExists
     case urlNotFileURL
 }

Sources/Library/Services/FileService.swift

@@ -20,6 +20,20 @@ public struct FileService: FileServicing {
         }
     }
     
+    // MARK: Functions
+
+    public func delete(at url: URL) async throws (FileServiceError) {
+        guard try await exists(at: url) else {
+            throw FileServiceError.urlNotExists
+        }
+        
+        do {
+            try fileManager.removeItem(at: url)
+        } catch {
+            throw FileServiceError.urlNotDeleted
+        }
+    }
+    
     public func exists(at url: URL) async throws (FileServiceError) -> Bool {
         guard url.isFileURL else {
             throw FileServiceError.urlNotFileURL

Tests/Library/Services/FileServiceTests.swift

@@ -26,9 +26,34 @@ struct FileServiceTests {
         #expect(url == .someExistingFolder)
         #expect(url.isFileURL == true)
     }
+    @Test(arguments: [URL.someNewFolder, .someNewFile])
+    func delete(with url: URL) async throws {
+        // GIVEN
+        if try await !service.exists(at: url) {
+            try await service.createFolder(at: url)
+        }
+
+        // WHEN
+        try await service.delete(at: url)
+
+        // THEN
+        let result = try await service.exists(at: url)
+        
+        #expect(result == false)
+    }
+    
+    @Test(arguments: zip([URL.someNonExistingFolder, .someNonExistingFile, .someRandomURL],
+                         [FileServiceError.urlNotExists, .urlNotExists, .urlNotFileURL]))
+    func deleteThrows(
+        with url: URL,
+        expects error: FileServiceError
+    ) async throws {
         // GIVEN
         // WHEN
         // THEN
+        await #expect(throws: error) {
+            try await service.delete(at: url)
+        }
     }
     
     @Test(arguments: zip([URL.someExistingFolder, .someExistingFile, .someNonExistingFolder, .someNonExistingFile],
@@ -62,7 +87,9 @@ struct FileServiceTests {
 
 private extension URL {
     static let someExistingFolder = URL(at: "/private/tmp")
-    static let someExistingFile = URL(at: "/etc/null")
+    static let someExistingFile = URL(at: "/etc/ssh/ssh_config")
+    static let someNewFolder = URL(at: "/private/tmp/folder")
+    static let someNewFile = URL(at: "/private/tmp/file.ext")
     static let someNonExistingFolder = URL(at: "/some/random/folder")
     static let someNonExistingFile = URL(at: "/some/random/file.ext")
     static let someRandomURL = URL(string: "https://some.random.url")!