Handle delete of empty list of keys

[haroldsultan]

Handle deletion of an empty list of keys

[haroldsultan]

Please advise as to how to test. Thanks

[byroot]

Suggested change

	if keys.is_a?(Array) && keys.empty?
	return 0
	end
	return 0 if keys.empty?

keys can't be anything else than an array.

[byroot]

Please advise as to how to test. Thanks

redis-rb/test/commands_on_value_types_test.rb

Lines 10 to 24 in 6542934

	def test_del
	r.set "foo", "s1"
	r.set "bar", "s2"
	r.set "baz", "s3"
	assert_equal ["bar", "baz", "foo"], r.keys("*").sort
	assert_equal 1, r.del("foo")
	assert_equal ["bar", "baz"], r.keys("*").sort
	assert_equal 2, r.del("bar", "baz")
	assert_equal [], r.keys("*").sort
	end

[byroot]

This isn't handled by your code, you need to add a keys.flatten! in del.

[byroot]

Or even flatten!(1)

[haroldsultan]

Thanks @byroot for the review and feedback!