Merge pull request #2690 from ksss/securerandom-bytes

Add signature for `SecureRandom.bytes`

Author: ksss

stdlib/securerandom/0/securerandom.rbs

@@ -35,5 +35,15 @@
 # raised.
 #
 module SecureRandom
+  # <!--
+  #   rdoc-file=lib/securerandom.rb
+  #   - bytes(n)
+  # -->
+  # Returns a random binary string containing `size` bytes.
+  #
+  # See Random.bytes
+  #
+  def self.bytes: (Integer) -> String
+
   extend Random::Formatter
 end

test/stdlib/SecureRandom_test.rb

@@ -7,6 +7,11 @@ class SecureRandomSingletonTest < Test::Unit::TestCase
   library "securerandom"
   testing "singleton(::SecureRandom)"
 
+  def test_bytes
+    assert_send_type "(::Integer) -> ::String",
+                     SecureRandom, :bytes, 10
+  end
+
   def test_uuid
     assert_send_type "() -> ::String",
                      SecureRandom, :uuid