[GR-20446] Skip failing ObjectSpace.dump/.dump_all specs on Ruby 2.7

PullRequest: truffleruby/3705

spec/ruby/library/objectspace/dump_all_spec.rb

@@ -55,8 +55,9 @@
     stdout.should == "File\ntrue\n"
   end
 
-  it "dumps Ruby heap to a temporary file when passed output: :nil" do
-    stdout = ruby_exe(<<~RUBY, options: "-robjspace")
+  ruby_version_is "3.0" do
+    it "dumps Ruby heap to a temporary file when passed output: :nil" do
+      stdout = ruby_exe(<<~RUBY, options: "-robjspace")
       string = "abc"
       file = ObjectSpace.dump_all(output: nil)
 
@@ -71,9 +72,10 @@
         file.close
         File.unlink file.path
       end
-    RUBY
+      RUBY
 
-    stdout.should == "File\ntrue\n"
+      stdout.should == "File\ntrue\n"
+    end
   end
 
   it "dumps Ruby heap to stdout when passed output: :stdout" do

spec/ruby/library/objectspace/dump_spec.rb

@@ -23,45 +23,49 @@
     string.should include('"value":"abc"')
   end
 
-  it "dumps to a temporary file when passed output: :file" do
-    file = ObjectSpace.dump("abc", output: :file)
-    file.should be_kind_of(File)
+  ruby_version_is "3.0" do
+    it "dumps to a temporary file when passed output: :file" do
+      file = ObjectSpace.dump("abc", output: :file)
+      file.should be_kind_of(File)
 
-    file.rewind
-    content = file.read
-    content.should include('"value":"abc"')
-  ensure
-    file.close
-    File.unlink file.path
-  end
+      file.rewind
+      content = file.read
+      content.should include('"value":"abc"')
+    ensure
+      file.close
+      File.unlink file.path
+    end
 
-  it "dumps to a temporary file when passed output: :nil" do
-    file = ObjectSpace.dump("abc", output: nil)
-    file.should be_kind_of(File)
+    it "dumps to a temporary file when passed output: :nil" do
+      file = ObjectSpace.dump("abc", output: nil)
+      file.should be_kind_of(File)
 
-    file.rewind
-    file.read.should include('"value":"abc"')
-  ensure
-    file.close
-    File.unlink file.path
+      file.rewind
+      file.read.should include('"value":"abc"')
+    ensure
+      file.close
+      File.unlink file.path
+    end
   end
 
   it "dumps to stdout when passed output: :stdout" do
     stdout = ruby_exe('ObjectSpace.dump("abc", output: :stdout)', options: "-robjspace").chomp
     stdout.should include('"value":"abc"')
   end
 
-  it "dumps to provided IO when passed output: IO" do
-    filename = tmp("io_read.txt")
-    io = File.open(filename, "w+")
-    result = ObjectSpace.dump("abc", output: io)
-    result.should.equal? io
+  ruby_version_is "3.0" do
+    it "dumps to provided IO when passed output: IO" do
+      filename = tmp("io_read.txt")
+      io = File.open(filename, "w+")
+      result = ObjectSpace.dump("abc", output: io)
+      result.should.equal? io
 
-    io.rewind
-    io.read.should include('"value":"abc"')
-  ensure
-    io.close
-    rm_r filename
+      io.rewind
+      io.read.should include('"value":"abc"')
+    ensure
+      io.close
+      rm_r filename
+    end
   end
 
   it "raises ArgumentError when passed not supported :output value" do