1 files changed, 25 insertions, 27 deletions
diff --git a/test/-ext-/bignum/test_str2big.rb b/test/-ext-/bignum/test_str2big.rb
index d5bd72a85b..d27e4d23f7 100644
--- a/test/-ext-/bignum/test_str2big.rb
+++ b/test/-ext-/bignum/test_str2big.rb
@@ -2,37 +2,35 @@
 require 'test/unit'
 require "-test-/bignum"
 
-class Test_Bignum < Test::Unit::TestCase
-  class TestStr2big < Test::Unit::TestCase
+class TestBignum_Str2big < Test::Unit::TestCase
 
-    SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT
-    BITSPERDIG = Bug::Bignum::BITSPERDIG
-    BDIGMAX = (1 << BITSPERDIG) - 1
+  SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT
+  BITSPERDIG = Bug::Bignum::BITSPERDIG
+  BDIGMAX = (1 << BITSPERDIG) - 1
 
-    def test_str2big_poweroftwo
-      s = "1" + "0" * 1000
-      n = 16 ** 1000
-      assert_equal(n, Bug::Bignum.str2big_poweroftwo(s, 16, true))
-    end
-
-    def test_str2big_normal
-      s = "1" + "0" * 1000
-      n = 10 ** 1000
-      assert_equal(n, Bug::Bignum.str2big_normal(s, 10, true))
-    end
+  def test_str2big_poweroftwo
+    s = "1" + "0" * 1000
+    n = 16 ** 1000
+    assert_equal(n, Bug::Bignum.str2big_poweroftwo(s, 16, true))
+  end
 
-    def test_str2big_karatsuba
-      s = "1" + "0" * 1000
-      n = 10 ** 1000
-      assert_equal(n, Bug::Bignum.str2big_karatsuba(s, 10, true))
-    end
+  def test_str2big_normal
+    s = "1" + "0" * 1000
+    n = 10 ** 1000
+    assert_equal(n, Bug::Bignum.str2big_normal(s, 10, true))
+  end
 
-    def test_str2big_gmp
-      s = "1" + "0" * 1000
-      n = 10 ** 1000
-      assert_equal(n, Bug::Bignum.str2big_gmp(s, 10, true))
-    rescue NotImplementedError
-    end
+  def test_str2big_karatsuba
+    s = "1" + "0" * 1000
+    n = 10 ** 1000
+    assert_equal(n, Bug::Bignum.str2big_karatsuba(s, 10, true))
+  end
 
+  def test_str2big_gmp
+    s = "1" + "0" * 1000
+    n = 10 ** 1000
+    assert_equal(n, Bug::Bignum.str2big_gmp(s, 10, true))
+  rescue NotImplementedError
   end
+
 end