Move custom logic from FileSystem mock to tests (#591)

Author: tinder-cfuller

Tests/NodesXcodeTemplatesGeneratorTests/Support/FileSystemMock.swift

@@ -31,9 +31,7 @@ internal final class FileSystemMock: FileSystem {
     }
 
     internal func copyItem(at fromURL: URL, to toURL: URL) throws {
-        let path: String = fromURL.path.replacingOccurrences(of: "/Contents/Resources", with: "")
-        let bundle: String = "Nodes_NodesXcodeTemplatesGenerator"
-        copies.append((from: path.components(separatedBy: bundle).last!, to: toURL.path))
+        copies.append((from: fromURL.path, to: toURL.path))
     }
 
     internal func removeItem(at url: URL) throws {

Tests/NodesXcodeTemplatesGeneratorTests/XcodeTemplatesTests.swift

@@ -15,7 +15,7 @@ final class XcodeTemplatesTests: XCTestCase {
         writes.forEach { assertSnapshot(of: $0.contents, as: .lines, named: "Contents.\(name(from: $0.path))") }
         assertSnapshot(of: writes.map { (path: $0.path, atomically: $0.atomically) }, as: .dump, named: "Writes")
         assertSnapshot(of: fileSystem.directories, as: .dump, named: "Directories")
-        assertSnapshot(of: fileSystem.copies, as: .dump, named: "Copies")
+        assertSnapshot(of: sanitize(fileSystem.copies), as: .dump, named: "Copies")
         assertSnapshot(of: fileSystem.deletions, as: .dump, named: "Deletions")
     }
 
@@ -28,7 +28,7 @@ final class XcodeTemplatesTests: XCTestCase {
         writes.forEach { assertSnapshot(of: $0.contents, as: .lines, named: "Contents.\(name(from: $0.path))") }
         assertSnapshot(of: writes.map { (path: $0.path, atomically: $0.atomically) }, as: .dump, named: "Writes")
         assertSnapshot(of: fileSystem.directories, as: .dump, named: "Directories")
-        assertSnapshot(of: fileSystem.copies, as: .dump, named: "Copies")
+        assertSnapshot(of: sanitize(fileSystem.copies), as: .dump, named: "Copies")
         assertSnapshot(of: fileSystem.deletions, as: .dump, named: "Deletions")
     }
 
@@ -41,6 +41,15 @@ final class XcodeTemplatesTests: XCTestCase {
             .replacingOccurrences(of: [".xctemplate", "___FILEBASENAME___", ".swift", ".plist"], with: "")
     }
 
+    private func sanitize(_ copies: [(from: String, to: String)]) -> [(from: String, to: String)] {
+        // swiftlint:disable:next identifier_name
+        copies.map { from, to in
+            let from: String = from.replacingOccurrences(of: "/Contents/Resources", with: "")
+            let bundle: String = "Nodes_NodesXcodeTemplatesGenerator"
+            return (from: from.components(separatedBy: bundle).last!, to: to)
+        }
+    }
+
     private func givenConfig() -> Config {
         var config: Config = .init()
         config.uiFrameworks = [