Deprecate taint/trust and related methods, and make the methods no-ops

This removes the related tests, and puts the related specs behind
version guards.  This affects all code in lib, including some
libraries that may want to support older versions of Ruby.

1 files changed, 18 insertions, 16 deletions

diff --git a/spec/ruby/core/kernel/untrust_spec.rb b/spec/ruby/core/kernel/untrust_spec.rb
index 2ee3dbb170..c6eb79af1c 100644
--- a/spec/ruby/core/kernel/untrust_spec.rb
+++ b/spec/ruby/core/kernel/untrust_spec.rb
@@ -2,24 +2,26 @@ require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 
 describe "Kernel#untrust" do
-  it "returns self" do
-    o = Object.new
-    o.untrust.should equal(o)
-  end
+  ruby_version_is ''...'2.7' do
+    it "returns self" do
+      o = Object.new
+      o.untrust.should equal(o)
+    end
 
-  it "sets the untrusted bit" do
-    o = Object.new
-    o.untrust
-    o.untrusted?.should == true
-  end
+    it "sets the untrusted bit" do
+      o = Object.new
+      o.untrust
+      o.untrusted?.should == true
+    end
 
-  it "raises #{frozen_error_class} on a trusted, frozen object" do
-    o = Object.new.freeze
-    -> { o.untrust }.should raise_error(frozen_error_class)
-  end
+    it "raises #{frozen_error_class} on a trusted, frozen object" do
+      o = Object.new.freeze
+      -> { o.untrust }.should raise_error(frozen_error_class)
+    end
 
-  it "does not raise an error on an untrusted, frozen object" do
-    o = Object.new.untrust.freeze
-    o.untrust.should equal(o)
+    it "does not raise an error on an untrusted, frozen object" do
+      o = Object.new.untrust.freeze
+      o.untrust.should equal(o)
+    end
   end
 end