IsbnVerifierTests.swift in trackler-2.2.1.144

- old
+ new

@@ -1,9 +1,13 @@
 import XCTest
 @testable import IsbnVerifier
 
 class IsbnVerifierTests: XCTestCase {
+    
+    func testEmptyString() {
+        XCTAssertFalse(IsbnVerifier.isValid(""))
+    }
 
     func testValidIsbnNumber() {
         XCTAssertTrue(IsbnVerifier.isValid("3-598-21508-8"))
     }
 
@@ -55,9 +59,10 @@
         XCTAssertFalse(IsbnVerifier.isValid("3-598-21515-X"))
     }
 
     static var allTests: [(String, (IsbnVerifierTests) -> () throws -> Void)] {
         return [
+            ("testEmptyString", testEmptyString),
             ("testValidIsbnNumber", testValidIsbnNumber),
             ("testInvalidIsbnCheckDigit", testInvalidIsbnCheckDigit),
             ("testValidIsbnNumberWithACheckDigitOf10", testValidIsbnNumberWithACheckDigitOf10),
             ("testCheckDigitIsACharacterOtherThanX", testCheckDigitIsACharacterOtherThanX),
             ("testInvalidCharacterInIsbn", testInvalidCharacterInIsbn),