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, 22 insertions, 20 deletions

diff --git a/spec/ruby/core/kernel/untrusted_spec.rb b/spec/ruby/core/kernel/untrusted_spec.rb
index 3f894b0bab..ccebfe38be 100644
--- a/spec/ruby/core/kernel/untrusted_spec.rb
+++ b/spec/ruby/core/kernel/untrusted_spec.rb
@@ -2,27 +2,29 @@ require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 
 describe "Kernel#untrusted?" do
-  it "returns the untrusted status of an object" do
-    o = mock('o')
-    o.untrusted?.should == false
-    o.untrust
-    o.untrusted?.should == true
-  end
+  ruby_version_is ''...'2.7' do
+    it "returns the untrusted status of an object" do
+      o = mock('o')
+      o.untrusted?.should == false
+      o.untrust
+      o.untrusted?.should == true
+    end
 
-  it "has no effect on immediate values" do
-    a = nil
-    b = true
-    c = false
-    a.untrust
-    b.untrust
-    c.untrust
-    a.untrusted?.should == false
-    b.untrusted?.should == false
-    c.untrusted?.should == false
-  end
+    it "has no effect on immediate values" do
+      a = nil
+      b = true
+      c = false
+      a.untrust
+      b.untrust
+      c.untrust
+      a.untrusted?.should == false
+      b.untrusted?.should == false
+      c.untrusted?.should == false
+    end
 
-  it "has effect on immediate values" do
-    d = 1
-    -> { d.untrust }.should_not raise_error(RuntimeError)
+    it "has effect on immediate values" do
+      d = 1
+      -> { d.untrust }.should_not raise_error(RuntimeError)
+    end
   end
 end