* test/ruby: get rid of warnings.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45267 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_defined.rb

@@ -203,7 +203,7 @@ class TestDefined < Test::Unit::TestCase
 
     o = c.new
     o.extend(m)
-    assert_equal("super", o.x)
+    assert_equal("super", o.x, bug8367)
   end
 
   def test_super_toplevel

test/ruby/test_enum.rb

@@ -106,7 +106,7 @@ class TestEnumerable < Test::Unit::TestCase
   def test_to_h
     obj = Object.new
     def obj.each(*args)
-      yield *args
+      yield(*args)
       yield [:key, :value]
       yield :other_key, :other_value
       kvp = Object.new

test/ruby/test_exception.rb

@@ -523,9 +523,9 @@ end.join
     assert_equal(false, s.tainted?)
   end
 
-  def m;
-    m &->{return 0};
-    42;
+  def m
+    m(&->{return 0})
+    42
   end
 
   def test_stackoverflow
@@ -573,7 +573,6 @@ end.join
 
   def test_cause_reraised
     msg = "[Feature #8257]"
-    cause = nil
     e = assert_raise(RuntimeError) {
       begin
         raise msg

test/ruby/test_fiber.rb

@@ -219,8 +219,8 @@ class TestFiber < Test::Unit::TestCase
 
   def test_no_valid_cfp
     bug5083 = '[ruby-dev:44208]'
-    assert_equal([], Fiber.new(&Module.method(:nesting)).resume)
-    assert_instance_of(Class, Fiber.new(&Class.new.method(:undef_method)).resume(:to_s))
+    assert_equal([], Fiber.new(&Module.method(:nesting)).resume, bug5083)
+    assert_instance_of(Class, Fiber.new(&Class.new.method(:undef_method)).resume(:to_s), bug5083)
   end
 
   def test_prohibit_resume_transfered_fiber
@@ -283,7 +283,7 @@ class TestFiber < Test::Unit::TestCase
     env = {}
     env['RUBY_FIBER_VM_STACK_SIZE'] = vm_stack_size.to_s if vm_stack_size
     env['RUBY_FIBER_MACHINE_STACK_SIZE'] = machine_stack_size.to_s if machine_stack_size
-    out, err = Dir.mktmpdir("test_fiber") {|tmpdir|
+    out, _ = Dir.mktmpdir("test_fiber") {|tmpdir|
       EnvUtil.invoke_ruby([env, '-e', script], '', true, true, chdir: tmpdir)
     }
     use_length ? out.length : out

test/ruby/test_float.rb

@@ -248,14 +248,14 @@ class TestFloat < Test::Unit::TestCase
 
   def test_modulo3
     bug6048 = '[ruby-core:42726]'
-    assert_equal(4.2, 4.2.send(:%, Float::INFINITY))
-    assert_equal(4.2, 4.2 % Float::INFINITY)
+    assert_equal(4.2, 4.2.send(:%, Float::INFINITY), bug6048)
+    assert_equal(4.2, 4.2 % Float::INFINITY, bug6048)
     assert_is_minus_zero(-0.0 % 4.2)
     assert_is_minus_zero(-0.0.send :%, 4.2)
-    assert_raise(ZeroDivisionError) { 4.2.send(:%, 0.0) }
-    assert_raise(ZeroDivisionError) { 4.2 % 0.0 }
-    assert_raise(ZeroDivisionError) { 42.send(:%, 0) }
-    assert_raise(ZeroDivisionError) { 42 % 0 }
+    assert_raise(ZeroDivisionError, bug6048) { 4.2.send(:%, 0.0) }
+    assert_raise(ZeroDivisionError, bug6048) { 4.2 % 0.0 }
+    assert_raise(ZeroDivisionError, bug6048) { 42.send(:%, 0) }
+    assert_raise(ZeroDivisionError, bug6048) { 42 % 0 }
   end
 
   def test_divmod2

test/ruby/test_io.rb

@@ -1643,7 +1643,7 @@ class TestIO < Test::Unit::TestCase
   end
 
   def test_pos_with_getc
-    bug6179 = '[ruby-core:43497]'
+    _bug6179 = '[ruby-core:43497]'
     make_tempfile {|t|
       ["", "t", "b"].each do |mode|
         open(t.path, "w#{mode}") do |f|
@@ -1699,7 +1699,7 @@ class TestIO < Test::Unit::TestCase
       end
 
       if defined?(IO::SEEK_HOLE)
-        open(t.path) { |f|2
+        open(t.path) { |f|
           assert_equal("foo\n", f.gets)
           f.seek(0, IO::SEEK_HOLE)
           assert_equal("", f.read)

test/ruby/test_iseq.rb

@@ -11,7 +11,7 @@ class TestISeq < Test::Unit::TestCase
 
   def lines src
     body = RubyVM::InstructionSequence.new(src).to_a[13]
-    lines = body.find_all{|e| e.kind_of? Fixnum}
+    body.find_all{|e| e.kind_of? Fixnum}
   end
 
   def test_to_a_lines