18 files changed, 60 insertions, 60 deletions
diff --git a/spec/ruby/core/io/close_on_exec_spec.rb b/spec/ruby/core/io/close_on_exec_spec.rb
index f837bb56af..91bd3c8c40 100644
--- a/spec/ruby/core/io/close_on_exec_spec.rb
+++ b/spec/ruby/core/io/close_on_exec_spec.rb
@@ -14,24 +14,24 @@ describe "IO#close_on_exec=" do
   guard -> { platform_is_not :windows } do
     it "sets the close-on-exec flag if true" do
       @io.close_on_exec = true
-      @io.close_on_exec?.should == true
+      @io.should.close_on_exec?
     end
 
     it "sets the close-on-exec flag if non-false" do
       @io.close_on_exec = :true
-      @io.close_on_exec?.should == true
+      @io.should.close_on_exec?
     end
 
     it "unsets the close-on-exec flag if false" do
       @io.close_on_exec = true
       @io.close_on_exec = false
-      @io.close_on_exec?.should == false
+      @io.should_not.close_on_exec?
     end
 
     it "unsets the close-on-exec flag if nil" do
       @io.close_on_exec = true
       @io.close_on_exec = nil
-      @io.close_on_exec?.should == false
+      @io.should_not.close_on_exec?
     end
 
     it "ensures the IO's file descriptor is closed in exec'ed processes" do
@@ -64,12 +64,12 @@ describe "IO#close_on_exec?" do
 
   guard -> { platform_is_not :windows } do
     it "returns true by default" do
-      @io.close_on_exec?.should == true
+      @io.should.close_on_exec?
     end
 
     it "returns true if set" do
       @io.close_on_exec = true
-      @io.close_on_exec?.should == true
+      @io.should.close_on_exec?
     end
 
     it "raises IOError if called on a closed IO" do
diff --git a/spec/ruby/core/io/close_read_spec.rb b/spec/ruby/core/io/close_read_spec.rb
index 6fa4fc8ff8..26454bfddd 100644
--- a/spec/ruby/core/io/close_read_spec.rb
+++ b/spec/ruby/core/io/close_read_spec.rb
@@ -49,7 +49,7 @@ describe "IO#close_read" do
 
     io.close_read
 
-    io.closed?.should == true
+    io.should.closed?
   end
 
   it "does nothing on closed stream" do
diff --git a/spec/ruby/core/io/close_spec.rb b/spec/ruby/core/io/close_spec.rb
index 37c8ab5a12..dda82b34de 100644
--- a/spec/ruby/core/io/close_spec.rb
+++ b/spec/ruby/core/io/close_spec.rb
@@ -14,7 +14,7 @@ describe "IO#close" do
 
   it "closes the stream" do
     @io.close
-    @io.closed?.should == true
+    @io.should.closed?
   end
 
   it "returns nil" do
diff --git a/spec/ruby/core/io/close_write_spec.rb b/spec/ruby/core/io/close_write_spec.rb
index 75e1577654..14835e4e2c 100644
--- a/spec/ruby/core/io/close_write_spec.rb
+++ b/spec/ruby/core/io/close_write_spec.rb
@@ -45,7 +45,7 @@ describe "IO#close_write" do
 
     io.close_write
 
-    io.closed?.should == true
+    io.should.closed?
   end
 
   it "flushes and closes the write stream" do
diff --git a/spec/ruby/core/io/dup_spec.rb b/spec/ruby/core/io/dup_spec.rb
index de32c5e347..8cadaee118 100644
--- a/spec/ruby/core/io/dup_spec.rb
+++ b/spec/ruby/core/io/dup_spec.rb
@@ -51,16 +51,16 @@ end
     @i.close
     -> { @f.gets }.should_not raise_error(Exception)
 
-    @i.closed?.should == true
-    @f.closed?.should == false
+    @i.should.closed?
+    @f.should_not.closed?
   end
 
   it "allows closing the original IO without affecting the new one" do
     @f.close
     -> { @i.gets }.should_not raise_error(Exception)
 
-    @i.closed?.should == false
-    @f.closed?.should == true
+    @i.should_not.closed?
+    @f.should.closed?
   end
 
   it "raises IOError on closed stream" do
@@ -71,7 +71,7 @@ end
     @f.close_on_exec = true
     dup = @f.dup
     begin
-      dup.close_on_exec?.should == true
+      dup.should.close_on_exec?
     ensure
       dup.close
     end
@@ -79,7 +79,7 @@ end
     @f.close_on_exec = false
     dup = @f.dup
     begin
-      dup.close_on_exec?.should == true
+      dup.should.close_on_exec?
     ensure
       dup.close
     end
diff --git a/spec/ruby/core/io/eof_spec.rb b/spec/ruby/core/io/eof_spec.rb
index 8fd3c37132..315345d942 100644
--- a/spec/ruby/core/io/eof_spec.rb
+++ b/spec/ruby/core/io/eof_spec.rb
@@ -12,7 +12,7 @@ describe "IO#eof?" do
   end
 
   it "returns true on an empty stream that has just been opened" do
-    File.open(@name) { |empty| empty.eof?.should == true }
+    File.open(@name) { |empty| empty.should.eof? }
   end
 
   it "raises IOError on stream not opened for reading" do
@@ -34,35 +34,35 @@ describe "IO#eof?" do
 
   it "returns false when not at end of file" do
     @io.read 1
-    @io.eof?.should == false
+    @io.should_not.eof?
   end
 
   it "returns true after reading with read with no parameters" do
     @io.read()
-    @io.eof?.should == true
+    @io.should.eof?
   end
 
   it "returns true after reading with read" do
     @io.read(File.size(@name))
-    @io.eof?.should == true
+    @io.should.eof?
   end
 
   it "returns true after reading with sysread" do
     @io.sysread(File.size(@name))
-    @io.eof?.should == true
+    @io.should.eof?
   end
 
   it "returns true after reading with readlines" do
     @io.readlines
-    @io.eof?.should == true
+    @io.should.eof?
   end
 
   it "returns false on just opened non-empty stream" do
-    @io.eof?.should == false
+    @io.should_not.eof?
   end
 
   it "does not consume the data from the stream" do
-    @io.eof?.should == false
+    @io.should_not.eof?
     @io.getc.should == 'V'
   end
 
@@ -78,7 +78,7 @@ describe "IO#eof?" do
   it "returns true on one-byte stream after single-byte read" do
     File.open(File.dirname(__FILE__) + '/fixtures/one_byte.txt') { |one_byte|
       one_byte.read(1)
-      one_byte.eof?.should == true
+      one_byte.should.eof?
     }
   end
 end
@@ -92,16 +92,16 @@ describe "IO#eof?" do
   it "returns true on receiving side of Pipe when writing side is closed" do
     @r, @w = IO.pipe
     @w.close
-    @r.eof?.should == true
+    @r.should.eof?
   end
 
   it "returns false on receiving side of Pipe when writing side wrote some data" do
     @r, @w = IO.pipe
     @w.puts "hello"
-    @r.eof?.should == false
+    @r.should_not.eof?
     @w.close
-    @r.eof?.should == false
+    @r.should_not.eof?
     @r.read
-    @r.eof?.should == true
+    @r.should.eof?
   end
 end
diff --git a/spec/ruby/core/io/gets_spec.rb b/spec/ruby/core/io/gets_spec.rb
index 39b2108476..a3cd180b66 100644
--- a/spec/ruby/core/io/gets_spec.rb
+++ b/spec/ruby/core/io/gets_spec.rb
@@ -41,7 +41,7 @@ describe "IO#gets" do
     ruby_version_is ''...'2.7' do
       it "returns tainted strings" do
         while line = @io.gets
-          line.tainted?.should == true
+          line.should.tainted?
         end
       end
     end
@@ -67,7 +67,7 @@ describe "IO#gets" do
     ruby_version_is ''...'2.7' do
       it "returns tainted strings" do
         while line = @io.gets(nil)
-          line.tainted?.should == true
+          line.should.tainted?
         end
       end
     end
@@ -103,7 +103,7 @@ describe "IO#gets" do
     ruby_version_is ''...'2.7' do
       it "returns tainted strings" do
         while line = @io.gets("")
-          line.tainted?.should == true
+          line.should.tainted?
         end
       end
     end
@@ -129,7 +129,7 @@ describe "IO#gets" do
     ruby_version_is ''...'2.7' do
       it "returns tainted strings" do
         while line = @io.gets("la")
-          line.tainted?.should == true
+          line.should.tainted?
         end
       end
     end
diff --git a/spec/ruby/core/io/pipe_spec.rb b/spec/ruby/core/io/pipe_spec.rb
index a7dcb7fab8..2f2cf06f4d 100644
--- a/spec/ruby/core/io/pipe_spec.rb
+++ b/spec/ruby/core/io/pipe_spec.rb
@@ -44,8 +44,8 @@ describe "IO.pipe" do
       r, w = IO.pipe do |_r, _w|
         [_r, _w]
       end
-      r.closed?.should == true
-      w.closed?.should == true
+      r.should.closed?
+      w.should.closed?
     end
 
     it "closes both IO objects when the block raises" do
@@ -57,8 +57,8 @@ describe "IO.pipe" do
           raise RuntimeError
         end
       end.should raise_error(RuntimeError)
-      r.closed?.should == true
-      w.closed?.should == true
+      r.should.closed?
+      w.should.closed?
     end
 
     it "allows IO objects to be closed within the block" do
@@ -67,8 +67,8 @@ describe "IO.pipe" do
         _w.close
         [_r, _w]
       end
-      r.closed?.should == true
-      w.closed?.should == true
+      r.should.closed?
+      w.should.closed?
     end
   end
 end
diff --git a/spec/ruby/core/io/popen_spec.rb b/spec/ruby/core/io/popen_spec.rb
index 4f873e61cd..e9d32c5c7d 100644
--- a/spec/ruby/core/io/popen_spec.rb
+++ b/spec/ruby/core/io/popen_spec.rb
@@ -77,10 +77,10 @@ describe "IO.popen" do
     Process.kill "KILL", pid
     @io.close
     platform_is_not :windows do
-      $?.signaled?.should == true
+      $?.should.signaled?
     end
     platform_is :windows do
-      $?.exited?.should == true
+      $?.should.exited?
     end
   end
 
diff --git a/spec/ruby/core/io/read_nonblock_spec.rb b/spec/ruby/core/io/read_nonblock_spec.rb
index 63ccab5a44..e50531d336 100644
--- a/spec/ruby/core/io/read_nonblock_spec.rb
+++ b/spec/ruby/core/io/read_nonblock_spec.rb
@@ -46,7 +46,7 @@ describe "IO#read_nonblock" do
       require 'io/nonblock'
       @write.write "abc"
       @read.read_nonblock(1).should == "a"
-      @read.nonblock?.should == true
+      @read.should.nonblock?
     end
   end
 
diff --git a/spec/ruby/core/io/read_spec.rb b/spec/ruby/core/io/read_spec.rb
index 1e9a8d2a4f..841e693f37 100644
--- a/spec/ruby/core/io/read_spec.rb
+++ b/spec/ruby/core/io/read_spec.rb
@@ -216,7 +216,7 @@ describe "IO#read" do
 
   it "is at end-of-file when everything has been read" do
     @io.read
-    @io.eof?.should == true
+    @io.should.eof?
   end
 
   it "reads the contents of a file" do
diff --git a/spec/ruby/core/io/reopen_spec.rb b/spec/ruby/core/io/reopen_spec.rb
index faef80f513..8ff0f217f4 100644
--- a/spec/ruby/core/io/reopen_spec.rb
+++ b/spec/ruby/core/io/reopen_spec.rb
@@ -150,11 +150,11 @@ describe "IO#reopen with a String" do
 
     @io.close_on_exec = true
     @io.reopen @other_name
-    @io.close_on_exec?.should == true
+    @io.should.close_on_exec?
 
     @io.close_on_exec = false
     @io.reopen @other_name
-    @io.close_on_exec?.should == true
+    @io.should.close_on_exec?
   end
 
   it "creates the file if it doesn't exist if the IO is opened in write mode" do
@@ -293,12 +293,12 @@ describe "IO#reopen with an IO" do
     @other_io.close_on_exec = true
     @io.close_on_exec = true
     @io.reopen @other_io
-    @io.close_on_exec?.should == true
+    @io.should.close_on_exec?
 
     @other_io.close_on_exec = false
     @io.close_on_exec = false
     @io.reopen @other_io
-    @io.close_on_exec?.should == true
+    @io.should.close_on_exec?
   end
 
   it "may change the class of the instance" do
diff --git a/spec/ruby/core/io/rewind_spec.rb b/spec/ruby/core/io/rewind_spec.rb
index 954d56d30c..649041afaf 100644
--- a/spec/ruby/core/io/rewind_spec.rb
+++ b/spec/ruby/core/io/rewind_spec.rb
@@ -21,7 +21,7 @@ describe "IO#rewind" do
   it "positions the instance to the beginning of input and clears EOF" do
     value = @io.read
     @io.rewind
-    @io.eof?.should == false
+    @io.should_not.eof?
     value.should == @io.read
   end
 
diff --git a/spec/ruby/core/io/seek_spec.rb b/spec/ruby/core/io/seek_spec.rb
index 7e9c308272..2fa4a73ac9 100644
--- a/spec/ruby/core/io/seek_spec.rb
+++ b/spec/ruby/core/io/seek_spec.rb
@@ -44,21 +44,21 @@ describe "IO#seek" do
   it "moves the read position and clears EOF with SEEK_SET" do
     value = @io.read
     @io.seek(0, IO::SEEK_SET)
-    @io.eof?.should == false
+    @io.should_not.eof?
     value.should == @io.read
   end
 
   it "moves the read position and clears EOF with SEEK_CUR" do
     value = @io.read
     @io.seek(-1, IO::SEEK_CUR)
-    @io.eof?.should == false
+    @io.should_not.eof?
     value[-1].should == @io.read[0]
   end
 
   it "moves the read position and clears EOF with SEEK_END" do
     value = @io.read
     @io.seek(-1, IO::SEEK_END)
-    @io.eof?.should == false
+    @io.should_not.eof?
     value[-1].should == @io.read[0]
   end
 
diff --git a/spec/ruby/core/io/shared/new.rb b/spec/ruby/core/io/shared/new.rb
index 27d32f97ed..87f3001862 100644
--- a/spec/ruby/core/io/shared/new.rb
+++ b/spec/ruby/core/io/shared/new.rb
@@ -148,22 +148,22 @@ describe :io_new, shared: true do
 
   it "sets binmode from mode string" do
     @io = IO.send(@method, @fd, 'wb')
-    @io.binmode?.should == true
+    @io.should.binmode?
   end
 
   it "does not set binmode without being asked" do
     @io = IO.send(@method, @fd, 'w')
-    @io.binmode?.should == false
+    @io.should_not.binmode?
   end
 
   it "sets binmode from :binmode option" do
     @io = IO.send(@method, @fd, 'w', binmode: true)
-    @io.binmode?.should == true
+    @io.should.binmode?
   end
 
   it "does not set binmode from false :binmode" do
     @io = IO.send(@method, @fd, 'w', binmode: false)
-    @io.binmode?.should == false
+    @io.should_not.binmode?
   end
 
   it "sets external encoding to binary with binmode in mode string" do
@@ -270,13 +270,13 @@ describe :io_new, shared: true do
 
   it "accepts an :autoclose option" do
     @io = IO.send(@method, @fd, 'w', autoclose: false)
-    @io.autoclose?.should == false
+    @io.should_not.autoclose?
     @io.autoclose = true
   end
 
   it "accepts any truthy option :autoclose" do
     @io = IO.send(@method, @fd, 'w', autoclose: 42)
-    @io.autoclose?.should == true
+    @io.should.autoclose?
   end
 end
 
diff --git a/spec/ruby/core/io/shared/pos.rb b/spec/ruby/core/io/shared/pos.rb
index fb6d8087bc..0b4d1e13b3 100644
--- a/spec/ruby/core/io/shared/pos.rb
+++ b/spec/ruby/core/io/shared/pos.rb
@@ -27,7 +27,7 @@ describe :io_pos, shared: true do
       io.read 1
       io.read 1
       io.send(@method)
-      io.eof?.should == false
+      io.should_not.eof?
     end
   end
 end
diff --git a/spec/ruby/core/io/ungetc_spec.rb b/spec/ruby/core/io/ungetc_spec.rb
index 4be0e3aa8b..85c15b5a71 100644
--- a/spec/ruby/core/io/ungetc_spec.rb
+++ b/spec/ruby/core/io/ungetc_spec.rb
@@ -74,10 +74,10 @@ describe "IO#ungetc" do
     touch(@empty)
 
     File.open(@empty) { |empty|
-      empty.eof?.should == true
+      empty.should.eof?
       empty.getc.should == nil
       empty.ungetc(100)
-      empty.eof?.should == false
+      empty.should_not.eof?
     }
   end
 
diff --git a/spec/ruby/core/io/write_nonblock_spec.rb b/spec/ruby/core/io/write_nonblock_spec.rb
index 5474e5c6ce..a8b9ce0a36 100644
--- a/spec/ruby/core/io/write_nonblock_spec.rb
+++ b/spec/ruby/core/io/write_nonblock_spec.rb
@@ -79,7 +79,7 @@ describe 'IO#write_nonblock' do
     it 'sets the IO in nonblock mode' do
       require 'io/nonblock'
       @write.write_nonblock('a')
-      @write.nonblock?.should == true
+      @write.should.nonblock?
     end
   end
 end