only work around resolver caching on linux

it should be the only O/S which needs it due to the way its glibc
was written.  it is the only O/S that we've recieved any bugs for.

2 files changed, 13 insertions, 2 deletions

diff --git a/spec/support/platform_helpers.rb b/spec/support/platform_helpers.rb
index 9ba56a15e3..783429161a 100644
--- a/spec/support/platform_helpers.rb
+++ b/spec/support/platform_helpers.rb
@@ -138,6 +138,10 @@ def freebsd?
   !!(RUBY_PLATFORM =~ /freebsd/)
 end
 
+def linux?
+  !!(RUBY_PLATFORM =~ /linux/)
+end
+
 def debian_family?
   !!(ohai[:platform_family] == "debian")
 end
diff --git a/spec/support/shared/unit/provider/file.rb b/spec/support/shared/unit/provider/file.rb
index 0959406583..9f84111eac 100644
--- a/spec/support/shared/unit/provider/file.rb
+++ b/spec/support/shared/unit/provider/file.rb
@@ -693,13 +693,20 @@ shared_examples_for Chef::Provider::File do
           end
         end
       end
-      context "when managing /etc/resolv.conf" do
+      context "when managing /etc/resolv.conf", linux_only: true do
         let(:resource_path) { "/etc/resolv.conf" }
-        it "reloads the nameservers" do
+        it "reloads the nameservers on linux" do
           expect(Resolv::DefaultResolver).to receive(:replace_resolvers)
           provider.send(:do_resolv_conf_fixup)
         end
       end
+      context "when managing /etc/resolv.conf", linux_only: false do
+        let(:resource_path) { "/etc/resolv.conf" }
+        it "does not reload the nameservers on non-linux" do
+          expect(Resolv::DefaultResolver).not_to receive(:replace_resolvers)
+          provider.send(:do_resolv_conf_fixup)
+        end
+      end
     end
   end