Method: Balanced::Utils#assert_valid_keys

Defined in:
lib/balanced/utils.rb

#assert_valid_keys(hash, *valid_keys) ⇒ Object

Validate all keys in a hash match *valid keys, raising ArgumentError on a mismatch. Note that keys are NOT treated indifferently, meaning if you use strings for keys but assert symbols as keys, this will fail.

Examples

{ :name => "Rob", :years => "28" }.assert_valid_keys(:name, :age) # => raises "ArgumentError: Unknown key(s): years"
{ :name => "Rob", :age => "28" }.assert_valid_keys("name", "age") # => raises "ArgumentError: Unknown key(s): name, age"
{ :name => "Rob", :age => "28" }.assert_valid_keys(:name, :age) # => passes, raises nothing

Raises:

  • (ArgumentError) 


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# File 'lib/balanced/utils.rb', line 87

def assert_valid_keys(hash, *valid_keys)
  unknown_keys = hash.keys - [valid_keys].flatten
  raise(ArgumentError, "Unknown key(s): #{unknown_keys.join(', ')}") unless unknown_keys.empty?
end