1 files changed, 17 insertions, 27 deletions
diff --git a/spec/ruby/core/set/proper_subset_spec.rb b/spec/ruby/core/set/proper_subset_spec.rb
index a84c4197c2..3fd27da131 100644
--- a/spec/ruby/core/set/proper_subset_spec.rb
+++ b/spec/ruby/core/set/proper_subset_spec.rb
@@ -8,38 +8,28 @@ describe "Set#proper_subset?" do
   end
 
   it "returns true if passed a Set that self is a proper subset of" do
-    Set[].proper_subset?(@set).should be_true
-    Set[].proper_subset?(Set[1, 2, 3]).should be_true
-    Set[].proper_subset?(Set["a", :b, ?c]).should be_true
+    Set[].proper_subset?(@set).should == true
+    Set[].proper_subset?(Set[1, 2, 3]).should == true
+    Set[].proper_subset?(Set["a", :b, ?c]).should == true
 
-    Set[1, 2, 3].proper_subset?(@set).should be_true
-    Set[1, 3].proper_subset?(@set).should be_true
-    Set[1, 2].proper_subset?(@set).should be_true
-    Set[1].proper_subset?(@set).should be_true
+    Set[1, 2, 3].proper_subset?(@set).should == true
+    Set[1, 3].proper_subset?(@set).should == true
+    Set[1, 2].proper_subset?(@set).should == true
+    Set[1].proper_subset?(@set).should == true
 
-    Set[5].proper_subset?(@set).should be_false
-    Set[1, 5].proper_subset?(@set).should be_false
-    Set[nil].proper_subset?(@set).should be_false
-    Set["test"].proper_subset?(@set).should be_false
+    Set[5].proper_subset?(@set).should == false
+    Set[1, 5].proper_subset?(@set).should == false
+    Set[nil].proper_subset?(@set).should == false
+    Set["test"].proper_subset?(@set).should == false
 
-    @set.proper_subset?(@set).should be_false
-    Set[].proper_subset?(Set[]).should be_false
+    @set.proper_subset?(@set).should == false
+    Set[].proper_subset?(Set[]).should == false
   end
 
   it "raises an ArgumentError when passed a non-Set" do
-    -> { Set[].proper_subset?([]) }.should raise_error(ArgumentError)
-    -> { Set[].proper_subset?(1) }.should raise_error(ArgumentError)
-    -> { Set[].proper_subset?("test") }.should raise_error(ArgumentError)
-    -> { Set[].proper_subset?(Object.new) }.should raise_error(ArgumentError)
-  end
-
-  version_is(set_version, ""..."1.1.0") do #ruby_version_is ""..."3.3" do
-    ruby_version_is ""..."3.5" do
-      context "when comparing to a Set-like object" do
-        it "returns true if passed a Set-like object that self is a proper subset of" do
-          Set[1, 2, 3].proper_subset?(SetSpecs::SetLike.new([1, 2, 3, 4])).should be_true
-        end
-      end
-    end
+    -> { Set[].proper_subset?([]) }.should.raise(ArgumentError)
+    -> { Set[].proper_subset?(1) }.should.raise(ArgumentError)
+    -> { Set[].proper_subset?("test") }.should.raise(ArgumentError)
+    -> { Set[].proper_subset?(Object.new) }.should.raise(ArgumentError)
   end
 end