Raise ArgumentError if IP address is nil

2 files changed, 2 insertions, 0 deletions

diff --git a/test/ipaddress/ipv4_test.rb b/test/ipaddress/ipv4_test.rb
index 19264e2..0ce0bc9 100644
--- a/test/ipaddress/ipv4_test.rb
+++ b/test/ipaddress/ipv4_test.rb
@@ -92,6 +92,7 @@ class IPv4Test < Minitest::Test
     @invalid_ipv4.each do |i|
       assert_raises(ArgumentError) {@klass.new(i)}
     end
+    assert_raises (ArgumentError) {@klass.new(nil)}
     assert_raises (ArgumentError) {@klass.new("10.0.0.0/asd")}
   end
 
diff --git a/test/ipaddress/ipv6_test.rb b/test/ipaddress/ipv6_test.rb
index dcfb601..78bb023 100644
--- a/test/ipaddress/ipv6_test.rb
+++ b/test/ipaddress/ipv6_test.rb
@@ -58,6 +58,7 @@ class IPv6Test < Minitest::Test
     end
     assert_equal 64, @ip.prefix
 
+    assert_raises(ArgumentError) {@klass.new nil }
     assert_raises(ArgumentError) {
       @klass.new "::10.1.1.1"
     }