1 files changed, 18 insertions, 30 deletions
diff --git a/spec/ruby/core/string/squeeze_spec.rb b/spec/ruby/core/string/squeeze_spec.rb
index 6f75402c9c..52b6e1eed4 100644
--- a/spec/ruby/core/string/squeeze_spec.rb
+++ b/spec/ruby/core/string/squeeze_spec.rb
@@ -1,4 +1,5 @@
-# -*- encoding: binary -*-
+# encoding: binary
+# frozen_string_literal: false
 require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 
@@ -50,18 +51,8 @@ describe "String#squeeze" do
 
   it "raises an ArgumentError when the parameter is out of sequence" do
     s = "--subbookkeeper--"
-    -> { s.squeeze("e-b") }.should raise_error(ArgumentError)
-    -> { s.squeeze("^e-b") }.should raise_error(ArgumentError)
-  end
-
-  ruby_version_is ''...'2.7' do
-    it "taints the result when self is tainted" do
-      "hello".taint.squeeze("e").should.tainted?
-      "hello".taint.squeeze("a-z").should.tainted?
-
-      "hello".squeeze("e".taint).should_not.tainted?
-      "hello".squeeze("l".taint).should_not.tainted?
-    end
+    -> { s.squeeze("e-b") }.should.raise(ArgumentError)
+    -> { s.squeeze("^e-b") }.should.raise(ArgumentError)
   end
 
   it "tries to convert each set arg to a string using to_str" do
@@ -74,29 +65,26 @@ describe "String#squeeze" do
     "hello room".squeeze(other_string, other_string2).should == "hello rom"
   end
 
-  it "raises a TypeError when one set arg can't be converted to a string" do
-    -> { "hello world".squeeze([])        }.should raise_error(TypeError)
-    -> { "hello world".squeeze(Object.new)}.should raise_error(TypeError)
-    -> { "hello world".squeeze(mock('x')) }.should raise_error(TypeError)
+  it "returns a String in the same encoding as self" do
+    "yellow moon".encode("US-ASCII").squeeze.encoding.should == Encoding::US_ASCII
+    "yellow moon".encode("US-ASCII").squeeze("a").encoding.should == Encoding::US_ASCII
   end
 
-  ruby_version_is ''...'3.0' do
-    it "returns subclass instances when called on a subclass" do
-      StringSpecs::MyString.new("oh no!!!").squeeze("!").should be_an_instance_of(StringSpecs::MyString)
-    end
+  it "raises a TypeError when one set arg can't be converted to a string" do
+    -> { "hello world".squeeze([])        }.should.raise(TypeError)
+    -> { "hello world".squeeze(Object.new)}.should.raise(TypeError)
+    -> { "hello world".squeeze(mock('x')) }.should.raise(TypeError)
   end
 
-  ruby_version_is '3.0' do
-    it "returns String instances when called on a subclass" do
-      StringSpecs::MyString.new("oh no!!!").squeeze("!").should be_an_instance_of(String)
-    end
+  it "returns String instances when called on a subclass" do
+    StringSpecs::MyString.new("oh no!!!").squeeze("!").should.instance_of?(String)
   end
 end
 
 describe "String#squeeze!" do
   it "modifies self in place and returns self" do
     a = "yellow moon"
-    a.squeeze!.should equal(a)
+    a.squeeze!.should.equal?(a)
     a.should == "yelow mon"
   end
 
@@ -109,15 +97,15 @@ describe "String#squeeze!" do
 
   it "raises an ArgumentError when the parameter is out of sequence" do
     s = "--subbookkeeper--"
-    -> { s.squeeze!("e-b") }.should raise_error(ArgumentError)
-    -> { s.squeeze!("^e-b") }.should raise_error(ArgumentError)
+    -> { s.squeeze!("e-b") }.should.raise(ArgumentError)
+    -> { s.squeeze!("^e-b") }.should.raise(ArgumentError)
   end
 
   it "raises a FrozenError when self is frozen" do
     a = "yellow moon"
     a.freeze
 
-    -> { a.squeeze!("") }.should raise_error(FrozenError)
-    -> { a.squeeze!     }.should raise_error(FrozenError)
+    -> { a.squeeze!("") }.should.raise(FrozenError)
+    -> { a.squeeze!     }.should.raise(FrozenError)
   end
 end