fails:Array#pack with format 'Z' raises a TypeError when passed nil
fails:Array#pack with format 'Z' raises a TypeError when passed an Integer
fails:Array#pack with format 'Z' ignores whitespace in the format string
fails:Array#pack with format 'Z' calls #to_str to coerce the directives string
fails:Array#pack with format 'Z' taints the output string if the format string is tainted
fails:Array#pack with format 'Z' raises ArgumentError when the format modifier is '_'
fails:Array#pack with format 'Z' raises ArgumentError when the format modifier is '!'
fails:Array#pack with format 'Z' adds count bytes of a String to the output
fails:Array#pack with format 'Z' implicitly has a count of one when no count is specified
fails:Array#pack with format 'Z' does not add any bytes when the count is zero
fails:Array#pack with format 'Z' is not affected by a previous count modifier
fails:Array#pack with format 'Z' raises an ArgumentError when the Array is empty
fails:Array#pack with format 'Z' raises an ArgumentError when the Array has too few elements
fails:Array#pack with format 'Z' calls #to_str to convert the element to a String
fails:Array#pack with format 'Z' raises a TypeError when the object does not respond to #to_str
fails:Array#pack with format 'Z' returns a tainted string when a pack argument is tainted
fails:Array#pack with format 'Z' does not return a tainted string when the array is tainted
fails:Array#pack with format 'Z' returns a tainted string when the format is tainted
fails:Array#pack with format 'Z' returns a tainted string when an empty format is tainted
fails:Array#pack with format 'Z' returns a untrusted string when the format is untrusted
fails:Array#pack with format 'Z' returns a untrusted string when the empty format is untrusted
fails:Array#pack with format 'Z' returns a untrusted string when a pack argument is untrusted
fails:Array#pack with format 'Z' returns a trusted string when the array is untrusted
fails:Array#pack with format 'Z' returns a string in encoding of common to the concatenated results
fails:Array#pack with format 'Z' adds all the bytes and appends a NULL byte when passed the '*' modifier
fails:Array#pack with format 'Z' padds the output with NULL bytes when the count exceeds the size of the String
fails:Array#pack with format 'Z' adds a NULL byte when the value is nil
fails:Array#pack with format 'Z' pads the output with NULL bytes when the value is nil
fails:Array#pack with format 'Z' does not append a NULL byte when passed the '*' modifier and the value is nil
