         
         XCTAssertTrue(wordDictionary.contains(string: "alt"))
         XCTAssertTrue(wordDictionary.contains(string: "alice"))
+        XCTAssertTrue(wordDictionary.contains(string: "bob"))
+        XCTAssertTrue(wordDictionary.contains(string: "charlie"))
     }
     
     // MARK:- Case preservation

private extension StringDictionaryTests {
    
    func allWords() -> [String] {
        return ["activate", "alt", "as", "deactivate", "else", "end", "loop", "neg", "note", "opt", "par", "participant", "region"]
    }
}


class StringDictionaryTests: XCTestCase {

    private let DictionaryTextFilename = "example-dictionary"
    private var wordDictionary: StringDictionary!

    override func setUp() {
        wordDictionary = StringDictionary(withTextFilepath: StringSearchKitTestHelper.exampleFilepath)
