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, 26 insertions, 18 deletions

diff --git a/spec/ruby/optional/capi/string_spec.rb b/spec/ruby/optional/capi/string_spec.rb
index 53d28f7940..4da31445fe 100644
--- a/spec/ruby/optional/capi/string_spec.rb
+++ b/spec/ruby/optional/capi/string_spec.rb
@@ -167,8 +167,10 @@ describe "C-API String function" do
       @s.rb_str_new("hello", 3).should == "hel"
     end
 
-    it "returns a non-tainted string" do
-      @s.rb_str_new("hello", 5).tainted?.should == false
+    ruby_version_is ''...'2.7' do
+      it "returns a non-tainted string" do
+        @s.rb_str_new("hello", 5).tainted?.should == false
+      end
     end
 
     it "returns an empty string if len is 0" do
@@ -305,19 +307,21 @@ describe "C-API String function" do
     end
   end
 
-  describe "rb_tainted_str_new" do
-    it "creates a new tainted String" do
-      newstring = @s.rb_tainted_str_new("test", 4)
-      newstring.should == "test"
-      newstring.tainted?.should be_true
+  ruby_version_is ''...'2.7' do
+    describe "rb_tainted_str_new" do
+      it "creates a new tainted String" do
+        newstring = @s.rb_tainted_str_new("test", 4)
+        newstring.should == "test"
+        newstring.tainted?.should be_true
+      end
     end
-  end
 
-  describe "rb_tainted_str_new2" do
-    it "creates a new tainted String" do
-      newstring = @s.rb_tainted_str_new2("test")
-      newstring.should == "test"
-      newstring.tainted?.should be_true
+    describe "rb_tainted_str_new2" do
+      it "creates a new tainted String" do
+        newstring = @s.rb_tainted_str_new2("test")
+        newstring.should == "test"
+        newstring.tainted?.should be_true
+      end
     end
   end
 
@@ -684,8 +688,10 @@ describe :rb_external_str_new, shared: true do
     @s.send(@method, "#{x80}abc").encoding.should == Encoding::BINARY
   end
 
-  it "returns a tainted String" do
-    @s.send(@method, "abc").tainted?.should be_true
+  ruby_version_is ''...'2.7' do
+    it "returns a tainted String" do
+      @s.send(@method, "abc").tainted?.should be_true
+    end
   end
 end
 
@@ -767,9 +773,11 @@ describe "C-API String function" do
       s.encoding.should equal(Encoding::EUC_JP)
     end
 
-    it "returns a tainted String" do
-      s = @s.rb_external_str_new_with_enc("abc", 3, Encoding::US_ASCII)
-      s.tainted?.should be_true
+    ruby_version_is ''...'2.7' do
+      it "returns a tainted String" do
+        s = @s.rb_external_str_new_with_enc("abc", 3, Encoding::US_ASCII)
+        s.tainted?.should be_true
+      end
     end
   end