Use Test::Unit::TestCase instead of MiniTest::Unit::TestCase. Because

tests of fiddle already used customized assertions of ruby core.

  * test/fiddle/helper.rb: Use Test::Unit::TestCase for base class of
    testcase.
  * test/fiddle/test_*.rb: Use assert_raise instead of assert_raises.
    Remove needless includes for Test::Unit::Assertions.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59321 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/fiddle/helper.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: false
-require 'minitest/autorun'
+require 'test/unit'
 require 'fiddle'
 
 # FIXME: this is stolen from DL and needs to be refactored.
@@ -108,7 +108,7 @@ Fiddle::LIBC_SO = libc_so
 Fiddle::LIBM_SO = libm_so
 
 module Fiddle
-  class TestCase < MiniTest::Unit::TestCase
+  class TestCase < Test::Unit::TestCase
     def setup
       @libc = Fiddle.dlopen(LIBC_SO)
       @libm = Fiddle.dlopen(LIBM_SO)

test/fiddle/test_closure.rb

@@ -7,15 +7,15 @@ end
 module Fiddle
   class TestClosure < Fiddle::TestCase
     def test_argument_errors
-      assert_raises(TypeError) do
+      assert_raise(TypeError) do
         Closure.new(TYPE_INT, TYPE_INT)
       end
 
-      assert_raises(TypeError) do
+      assert_raise(TypeError) do
         Closure.new('foo', [TYPE_INT])
       end
 
-      assert_raises(TypeError) do
+      assert_raise(TypeError) do
         Closure.new(TYPE_INT, ['meow!'])
       end
     end

test/fiddle/test_cparser.rb

@@ -61,7 +61,7 @@ module Fiddle
     end
 
     def test_undefined_ctype
-      assert_raises(DLError) { parse_ctype('DWORD') }
+      assert_raise(DLError) { parse_ctype('DWORD') }
     end
 
     def test_undefined_ctype_with_type_alias
@@ -93,7 +93,7 @@ module Fiddle
     end
 
     def test_struct_undefined
-      assert_raises(DLError) { parse_struct_signature(['int i', 'DWORD cb']) }
+      assert_raise(DLError) { parse_struct_signature(['int i', 'DWORD cb']) }
     end
 
     def test_struct_undefined_with_type_alias

test/fiddle/test_func.rb

@@ -13,7 +13,7 @@ module Fiddle
 
     def test_syscall_with_tainted_string
       f = Function.new(@libc['system'], [TYPE_VOIDP], TYPE_INT)
-      assert_raises(SecurityError) do
+      assert_raise(SecurityError) do
         Thread.new {
           $SAFE = 1
           f.call("uname -rs".taint)

test/fiddle/test_function.rb

@@ -6,8 +6,6 @@ end
 
 module Fiddle
   class TestFunction < Fiddle::TestCase
-    include Test::Unit::Assertions
-
     def setup
       super
       Fiddle.last_error = nil

test/fiddle/test_handle.rb

@@ -8,8 +8,6 @@ module Fiddle
   class TestHandle < TestCase
     include Fiddle
 
-    include Test::Unit::Assertions
-
     def test_safe_handle_open
       t = Thread.new do
         $SAFE = 1

test/fiddle/test_import.rb

@@ -45,7 +45,7 @@ module Fiddle
 
   class TestImport < TestCase
     def test_ensure_call_dlload
-      err = assert_raises(RuntimeError) do
+      err = assert_raise(RuntimeError) do
         Class.new do
           extend Importer
           extern "void *strcpy(char*, char*)"

test/fiddle/test_pointer.rb

@@ -10,8 +10,6 @@ module Fiddle
       Fiddle.dlwrap arg
     end
 
-    include Test::Unit::Assertions
-
     def test_cptr_to_int
       null = Fiddle::NULL
       assert_equal(null.to_i, null.to_int)