1 files changed, 16 insertions, 16 deletions
diff --git a/spec/ruby/core/string/sub_spec.rb b/spec/ruby/core/string/sub_spec.rb
index f240cd8cff..80cf8622d5 100644
--- a/spec/ruby/core/string/sub_spec.rb
+++ b/spec/ruby/core/string/sub_spec.rb
@@ -148,14 +148,14 @@ describe "String#sub with pattern, replacement" do
 
       hello_t.taint; a_t.taint; empty_t.taint
 
-      hello_t.sub(/./, a).tainted?.should == true
-      hello_t.sub(/./, empty).tainted?.should == true
+      hello_t.sub(/./, a).should.tainted?
+      hello_t.sub(/./, empty).should.tainted?
 
-      hello.sub(/./, a_t).tainted?.should == true
-      hello.sub(/./, empty_t).tainted?.should == true
-      hello.sub(//, empty_t).tainted?.should == true
+      hello.sub(/./, a_t).should.tainted?
+      hello.sub(/./, empty_t).should.tainted?
+      hello.sub(//, empty_t).should.tainted?
 
-      hello.sub(//.taint, "foo").tainted?.should == false
+      hello.sub(//.taint, "foo").should_not.tainted?
     end
   end
 
@@ -298,14 +298,14 @@ describe "String#sub with pattern and block" do
 
       hello_t.taint; a_t.taint; empty_t.taint
 
-      hello_t.sub(/./) { a }.tainted?.should == true
-      hello_t.sub(/./) { empty }.tainted?.should == true
+      hello_t.sub(/./) { a }.should.tainted?
+      hello_t.sub(/./) { empty }.should.tainted?
 
-      hello.sub(/./) { a_t }.tainted?.should == true
-      hello.sub(/./) { empty_t }.tainted?.should == true
-      hello.sub(//) { empty_t }.tainted?.should == true
+      hello.sub(/./) { a_t }.should.tainted?
+      hello.sub(/./) { empty_t }.should.tainted?
+      hello.sub(//) { empty_t }.should.tainted?
 
-      hello.sub(//.taint) { "foo" }.tainted?.should == false
+      hello.sub(//.taint) { "foo" }.should_not.tainted?
     end
   end
 end
@@ -320,8 +320,8 @@ describe "String#sub! with pattern, replacement" do
   ruby_version_is ''...'2.7' do
     it "taints self if replacement is tainted" do
       a = "hello"
-      a.sub!(/./.taint, "foo").tainted?.should == false
-      a.sub!(/./, "foo".taint).tainted?.should == true
+      a.sub!(/./.taint, "foo").should_not.tainted?
+      a.sub!(/./, "foo".taint).should.tainted?
     end
   end
 
@@ -370,8 +370,8 @@ describe "String#sub! with pattern and block" do
   ruby_version_is ''...'2.7' do
     it "taints self if block's result is tainted" do
       a = "hello"
-      a.sub!(/./.taint) { "foo" }.tainted?.should == false
-      a.sub!(/./) { "foo".taint }.tainted?.should == true
+      a.sub!(/./.taint) { "foo" }.should_not.tainted?
+      a.sub!(/./) { "foo".taint }.should.tainted?
     end
   end