     strings2.append("B")
     XCTAssertFalse(strings2.asSequence().all { $0 == "A"} )
     
-    XCTAssertTrue(empty.asSequence().all {$0 == "A"} )
+    XCTAssertTrue(emptyStrings.asSequence().all {$0 == "A"} )
     
   }
   

    
    XCTAssertEqual(numbers.asSequence().filter( { $0 % 2 == 0} ).asArray(), [2, 4, 6, 8])
    
    XCTAssertTrue(empty.asSequence().filter( { $0.isEmpty } ).asArray().count == 0)
    
  }
  

    numbers.asSequence().foreach { sum += Int($0) }
    XCTAssertTrue(sum == 45)
    
    emptyStrings.asSequence().foreach {
      println($0)
      XCTAssertTrue(false)
    }
    
  }
  
