Update to ruby/spec@41bf282

4 files changed, 147 insertions, 0 deletions

diff --git a/spec/ruby/language/delegation_spec.rb b/spec/ruby/language/delegation_spec.rb
new file mode 100644
index 0000000000..4063ad457e
--- /dev/null
+++ b/spec/ruby/language/delegation_spec.rb
@@ -0,0 +1,41 @@
+require_relative '../spec_helper'
+require_relative 'fixtures/delegation'
+
+ruby_version_is "2.7" do
+  describe "delegation with def(...)" do
+    it "delegates rest and kwargs" do
+      a = Class.new(DelegationSpecs::Target)
+      a.class_eval(<<-RUBY)
+        def delegate(...)
+          target(...)
+        end
+      RUBY
+
+      a.new.delegate(1, b: 2).should == [[1], {b: 2}]
+    end
+
+    it "delegates block" do
+      a = Class.new(DelegationSpecs::Target)
+      a.class_eval(<<-RUBY)
+        def delegate_block(...)
+          target_block(...)
+        end
+      RUBY
+
+      a.new.delegate_block(1, b: 2) { |x| x }.should == [{b: 2}, [1]]
+    end
+
+    it "parses as open endless Range when brackets are ommitted" do
+      a = Class.new(DelegationSpecs::Target)
+      suppress_warning do
+        a.class_eval(<<-RUBY)
+          def delegate(...)
+            target ...
+          end
+         RUBY
+       end
+
+       a.new.delegate(1, b: 2).should == Range.new([[], {}], nil, true)
+    end
+  end
+end
diff --git a/spec/ruby/language/fixtures/delegation.rb b/spec/ruby/language/fixtures/delegation.rb
new file mode 100644
index 0000000000..527d928390
--- /dev/null
+++ b/spec/ruby/language/fixtures/delegation.rb
@@ -0,0 +1,11 @@
+module DelegationSpecs
+  class Target
+    def target(*args, **kwargs)
+      [args, kwargs]
+    end
+
+    def target_block(*args, **kwargs)
+      yield [kwargs, args]
+    end
+  end
+end
diff --git a/spec/ruby/language/pattern_matching_spec.rb b/spec/ruby/language/pattern_matching_spec.rb
index 6a6de506ff..f84d84c241 100644
--- a/spec/ruby/language/pattern_matching_spec.rb
+++ b/spec/ruby/language/pattern_matching_spec.rb
@@ -402,6 +402,17 @@ ruby_version_is "2.7" do
           RUBY
         }.should raise_error(SyntaxError, /illegal variable in alternative pattern/)
       end
+
+      it "support undescore prefixed variables in alternation" do
+        eval(<<~RUBY).should == true
+          case [0, 1]
+            in [1, _]
+              false
+            in [0, 0] | [0, _a]
+              true
+          end
+        RUBY
+      end
     end
 
     describe "AS pattern" do
@@ -962,5 +973,79 @@ ruby_version_is "2.7" do
         RUBY
       end
     end
+
+    describe "refinements" do
+      it "are used for #deconstruct" do
+        refinery = Module.new do
+          refine Array do
+            def deconstruct
+              [0]
+            end
+          end
+        end
+
+        result = nil
+        Module.new do
+          using refinery
+
+          result = eval(<<~RUBY)
+            case []
+              in [0]
+                true
+            end
+          RUBY
+        end
+
+        result.should == true
+      end
+
+      it "are used for #deconstruct_keys" do
+        refinery = Module.new do
+          refine Hash do
+            def deconstruct_keys(_)
+              {a: 0}
+            end
+          end
+        end
+
+        result = nil
+        Module.new do
+          using refinery
+
+          result = eval(<<~RUBY)
+            case {}
+              in a: 0
+                true
+            end
+          RUBY
+        end
+
+        result.should == true
+      end
+
+      it "are used for #=== in constant pattern" do
+        refinery = Module.new do
+          refine Array.singleton_class do
+            def ===(obj)
+              obj.is_a?(Hash)
+            end
+          end
+        end
+
+        result = nil
+        Module.new do
+          using refinery
+
+          result = eval(<<~RUBY)
+            case {}
+              in Array
+                true
+            end
+          RUBY
+        end
+
+        result.should == true
+      end
+    end
   end
 end
diff --git a/spec/ruby/language/variables_spec.rb b/spec/ruby/language/variables_spec.rb
index 868603eb88..7c2c7889f1 100644
--- a/spec/ruby/language/variables_spec.rb
+++ b/spec/ruby/language/variables_spec.rb
@@ -354,6 +354,16 @@ describe "Multiple assignment" do
       a.should be_an_instance_of(Array)
     end
 
+    it "unfreezes the array returned from calling 'to_a' on the splatted value" do
+      obj = Object.new
+      def obj.to_a
+        [1,2].freeze
+      end
+      res = *obj
+      res.should == [1,2]
+      res.frozen?.should == false
+    end
+
     it "consumes values for an anonymous splat" do
       a = 1
       (* = *a).should == [1]