1 files changed, 8 insertions, 37 deletions
diff --git a/spec/ruby/core/string/shared/replace.rb b/spec/ruby/core/string/shared/replace.rb
index 8dfac49f02..73b26351f1 100644
--- a/spec/ruby/core/string/shared/replace.rb
+++ b/spec/ruby/core/string/shared/replace.rb
@@ -1,7 +1,8 @@
+# frozen_string_literal: false
 describe :string_replace, shared: true do
   it "returns self" do
     a = "a"
-    a.send(@method, "b").should equal(a)
+    a.send(@method, "b").should.equal?(a)
   end
 
   it "replaces the content of self with other" do
@@ -10,36 +11,6 @@ describe :string_replace, shared: true do
     a.should == "another string"
   end
 
-  ruby_version_is ''...'2.7' do
-    it "taints self if other is tainted" do
-      a = ""
-      b = "".taint
-      a.send(@method, b)
-      a.should.tainted?
-    end
-
-    it "does not untaint self if other is untainted" do
-      a = "".taint
-      b = ""
-      a.send(@method, b)
-      a.should.tainted?
-    end
-
-    it "untrusts self if other is untrusted" do
-      a = ""
-      b = "".untrust
-      a.send(@method, b)
-      a.should.untrusted?
-    end
-
-    it "does not trust self if other is trusted" do
-      a = "".untrust
-      b = ""
-      a.send(@method, b)
-      a.should.untrusted?
-    end
-  end
-
   it "replaces the encoding of self with that of other" do
     a = "".encode("UTF-16LE")
     b = "".encode("UTF-8")
@@ -49,7 +20,7 @@ describe :string_replace, shared: true do
 
   it "carries over the encoding invalidity" do
     a = "\u{8765}".force_encoding('ascii')
-    "".send(@method, a).valid_encoding?.should be_false
+    "".send(@method, a).valid_encoding?.should == false
   end
 
   it "tries to convert other to string using to_str" do
@@ -59,19 +30,19 @@ describe :string_replace, shared: true do
   end
 
   it "raises a TypeError if other can't be converted to string" do
-    -> { "hello".send(@method, 123)       }.should raise_error(TypeError)
-    -> { "hello".send(@method, [])        }.should raise_error(TypeError)
-    -> { "hello".send(@method, mock('x')) }.should raise_error(TypeError)
+    -> { "hello".send(@method, 123)       }.should.raise(TypeError)
+    -> { "hello".send(@method, [])        }.should.raise(TypeError)
+    -> { "hello".send(@method, mock('x')) }.should.raise(TypeError)
   end
 
   it "raises a FrozenError on a frozen instance that is modified" do
     a = "hello".freeze
-    -> { a.send(@method, "world") }.should raise_error(FrozenError)
+    -> { a.send(@method, "world") }.should.raise(FrozenError)
   end
 
   # see [ruby-core:23666]
   it "raises a FrozenError on a frozen instance when self-replacing" do
     a = "hello".freeze
-    -> { a.send(@method, a) }.should raise_error(FrozenError)
+    -> { a.send(@method, a) }.should.raise(FrozenError)
   end
 end