deli counter tests passing

Objc-deli/FISAppDelegate.h

@@ -18,4 +18,9 @@
 
  */
 
+- (NSString *)stringWithDeliLine:(NSArray *)deliLine;
+- (NSString *)addName:(NSString *)name toDeliLine:(NSMutableArray *)deliLine;
+- (NSString *)serveNextCustomerInDeliLine:(NSMutableArray *)deliLine;
+
+
 @end

Objc-deli/FISAppDelegate.m

@@ -22,4 +22,45 @@ - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(
 
  */
 
+- (NSString *)stringWithDeliLine:(NSArray *)deliLine {
+
+    NSString *deliLineStatus;
+
+    if ([deliLine count] == 0) {
+        deliLineStatus = @"The line is currently empty.";
+    } else {
+
+        deliLineStatus = @"The line is:";
+        for (NSUInteger i = 0; i < [deliLine count]; i++) {
+
+            NSUInteger deliNumber = i + 1;
+            NSString *deliNumberString = [@(deliNumber) stringValue];
+
+            deliLineStatus = [deliLineStatus stringByAppendingString:@"\n"];
+            deliLineStatus = [deliLineStatus stringByAppendingString:deliNumberString];
+            deliLineStatus = [deliLineStatus stringByAppendingString:@". "];
+            deliLineStatus = [deliLineStatus stringByAppendingString:deliLine[i]];
+
+        }
+    }
+
+    return deliLineStatus;
+
+}
+
+- (NSString *)addName:(NSString *)name toDeliLine:(NSMutableArray *)deliLine {
+
+    [deliLine addObject:name];
+
+    return name;
+}
+
+- (NSString *)serveNextCustomerInDeliLine:(NSMutableArray *)deliLine {
+
+    NSString *nextCustomer = [deliLine objectAtIndex:0];
+    [deliLine removeObjectAtIndex:0];
+
+    return nextCustomer;
+}
+
 @end