1 files changed, 11 insertions, 14 deletions
diff --git a/spec/ruby/core/string/strip_spec.rb b/spec/ruby/core/string/strip_spec.rb
index 662f13b032..81994a7f2e 100644
--- a/spec/ruby/core/string/strip_spec.rb
+++ b/spec/ruby/core/string/strip_spec.rb
@@ -1,3 +1,4 @@
+# frozen_string_literal: false
 require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 require_relative 'shared/strip'
@@ -11,17 +12,15 @@ describe "String#strip" do
     "\tgoodbye\r\v\n".strip.should == "goodbye"
   end
 
-  ruby_version_is '3.0' do
-    it "returns a copy of self without leading and trailing NULL bytes and whitespace" do
-      " \x00 goodbye \x00 ".strip.should == "goodbye"
-    end
+  it "returns a copy of self without leading and trailing NULL bytes and whitespace" do
+    " \x00 goodbye \x00 ".strip.should == "goodbye"
   end
 end
 
 describe "String#strip!" do
   it "modifies self in place and returns self" do
     a = "   hello   "
-    a.strip!.should equal(a)
+    a.strip!.should.equal?(a)
     a.should == "hello"
 
     a = "\tgoodbye\r\v\n"
@@ -41,21 +40,19 @@ describe "String#strip!" do
     "  ".strip.should == ""
   end
 
-  ruby_version_is '3.0' do
-    it "removes leading and trailing NULL bytes and whitespace" do
-      a = "\000 goodbye \000"
-      a.strip!
-      a.should == "goodbye"
-    end
+  it "removes leading and trailing NULL bytes and whitespace" do
+    a = "\000 goodbye \000"
+    a.strip!
+    a.should == "goodbye"
   end
 
   it "raises a FrozenError on a frozen instance that is modified" do
-    -> { "  hello  ".freeze.strip! }.should raise_error(FrozenError)
+    -> { "  hello  ".freeze.strip! }.should.raise(FrozenError)
   end
 
   # see #1552
   it "raises a FrozenError on a frozen instance that would not be modified" do
-    -> {"hello".freeze.strip! }.should raise_error(FrozenError)
-    -> {"".freeze.strip!      }.should raise_error(FrozenError)
+    -> {"hello".freeze.strip! }.should.raise(FrozenError)
+    -> {"".freeze.strip!      }.should.raise(FrozenError)
   end
 end