🐛 Fix bug in function for removing suffix from string

CHANGELOG.md

@@ -8,6 +8,10 @@
 
 ## master
 
+### Fixed
+
+- Incorrect file name when specified with _.strings_ suffix ([#39](https://github.com/AckeeCZ/ACKLocalization/pull/39), kudos to @vendulasvastal)
+
 ## 1.6.0
 
 ### Added

Sources/ACKLocalizationCore/ACKLocalization.swift

@@ -462,8 +462,7 @@ public final class ACKLocalization {
 extension String {
     func removingSuffix(_ suffix: String) -> String {
         guard hasSuffix(suffix) else { return self }
-
-        return String(self[...index(endIndex, offsetBy: -suffix.count)])
+        return String(dropLast(suffix.count))
     }
 }
 

Tests/ACKLocalizationCoreTests/ACKLocalizationTests.swift

@@ -1,4 +1,4 @@
-import ACKLocalizationCore
+@testable import ACKLocalizationCore
 import XCTest
 
 final class ACKLocalizationTests: XCTestCase {
@@ -40,4 +40,9 @@ final class ACKLocalizationTests: XCTestCase {
         ]
         XCTAssertNoThrow(try localization.checkDuplicateKeys(form: locRow))
     }
+
+    func testRemovingSuffix() {
+        var fileName = "Localizable.strings"
+        XCTAssertEqual("Localizable", fileName.removingSuffix(".strings"))
+    }
 }