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, 56 insertions, 54 deletions

diff --git a/spec/ruby/core/array/concat_spec.rb b/spec/ruby/core/array/concat_spec.rb
index cc707d9948..b297c091a3 100644
--- a/spec/ruby/core/array/concat_spec.rb
+++ b/spec/ruby/core/array/concat_spec.rb
@@ -41,60 +41,62 @@ describe "Array#concat" do
     -> { ArraySpecs.frozen_array.concat([]) }.should raise_error(frozen_error_class)
   end
 
-  it "keeps tainted status" do
-    ary = [1, 2]
-    ary.taint
-    ary.concat([3])
-    ary.tainted?.should be_true
-    ary.concat([])
-    ary.tainted?.should be_true
-  end
-
-  it "is not infected by the other" do
-    ary = [1,2]
-    other = [3]; other.taint
-    ary.tainted?.should be_false
-    ary.concat(other)
-    ary.tainted?.should be_false
-  end
-
-  it "keeps the tainted status of elements" do
-    ary = [ Object.new, Object.new, Object.new ]
-    ary.each {|x| x.taint }
-
-    ary.concat([ Object.new ])
-    ary[0].tainted?.should be_true
-    ary[1].tainted?.should be_true
-    ary[2].tainted?.should be_true
-    ary[3].tainted?.should be_false
-  end
-
-  it "keeps untrusted status" do
-    ary = [1, 2]
-    ary.untrust
-    ary.concat([3])
-    ary.untrusted?.should be_true
-    ary.concat([])
-    ary.untrusted?.should be_true
-  end
-
-  it "is not infected untrustedness by the other" do
-    ary = [1,2]
-    other = [3]; other.untrust
-    ary.untrusted?.should be_false
-    ary.concat(other)
-    ary.untrusted?.should be_false
-  end
-
-  it "keeps the untrusted status of elements" do
-    ary = [ Object.new, Object.new, Object.new ]
-    ary.each {|x| x.untrust }
-
-    ary.concat([ Object.new ])
-    ary[0].untrusted?.should be_true
-    ary[1].untrusted?.should be_true
-    ary[2].untrusted?.should be_true
-    ary[3].untrusted?.should be_false
+  ruby_version_is ''...'2.7' do
+    it "keeps tainted status" do
+      ary = [1, 2]
+      ary.taint
+      ary.concat([3])
+      ary.tainted?.should be_true
+      ary.concat([])
+      ary.tainted?.should be_true
+    end
+
+    it "is not infected by the other" do
+      ary = [1,2]
+      other = [3]; other.taint
+      ary.tainted?.should be_false
+      ary.concat(other)
+      ary.tainted?.should be_false
+    end
+
+    it "keeps the tainted status of elements" do
+      ary = [ Object.new, Object.new, Object.new ]
+      ary.each {|x| x.taint }
+
+      ary.concat([ Object.new ])
+      ary[0].tainted?.should be_true
+      ary[1].tainted?.should be_true
+      ary[2].tainted?.should be_true
+      ary[3].tainted?.should be_false
+    end
+
+    it "keeps untrusted status" do
+      ary = [1, 2]
+      ary.untrust
+      ary.concat([3])
+      ary.untrusted?.should be_true
+      ary.concat([])
+      ary.untrusted?.should be_true
+    end
+
+    it "is not infected untrustedness by the other" do
+      ary = [1,2]
+      other = [3]; other.untrust
+      ary.untrusted?.should be_false
+      ary.concat(other)
+      ary.untrusted?.should be_false
+    end
+
+    it "keeps the untrusted status of elements" do
+      ary = [ Object.new, Object.new, Object.new ]
+      ary.each {|x| x.untrust }
+
+      ary.concat([ Object.new ])
+      ary[0].untrusted?.should be_true
+      ary[1].untrusted?.should be_true
+      ary[2].untrusted?.should be_true
+      ary[3].untrusted?.should be_false
+    end
   end
 
   it "appends elements to an Array with enough capacity that has been shifted" do