1 files changed, 4 insertions, 10 deletions
diff --git a/test/ipaddress/prefix_test.rb b/test/ipaddress/prefix_test.rb
index bff812e..1a0e277 100644
--- a/test/ipaddress/prefix_test.rb
+++ b/test/ipaddress/prefix_test.rb
@@ -1,6 +1,6 @@
 require 'test_helper'
  
-class Prefix32Test < Test::Unit::TestCase
+class Prefix32Test < Minitest::Test
 
   def setup
     @netmask0  = "0.0.0.0"
@@ -89,12 +89,9 @@ class Prefix32Test < Test::Unit::TestCase
   end
 
   def test_initialize
-    assert_raise (ArgumentError) do
+    assert_raises (ArgumentError) do
       @klass.new 33
     end
-    assert_nothing_raised do
-      @klass.new 8
-    end
     assert_instance_of @klass, @klass.new(8)
   end
 
@@ -122,7 +119,7 @@ class Prefix32Test < Test::Unit::TestCase
 end # class Prefix32Test
 
   
-class Prefix128Test < Test::Unit::TestCase
+class Prefix128Test < Minitest::Test
   
   def setup
     @u128_hash = {
@@ -135,12 +132,9 @@ class Prefix128Test < Test::Unit::TestCase
   end
 
   def test_initialize
-    assert_raise (ArgumentError) do
+    assert_raises (ArgumentError) do
       @klass.new 129
     end
-    assert_nothing_raised do
-      @klass.new 64
-    end
     assert_instance_of @klass, @klass.new(64)
   end