Remove all the code that checks for Windows Nanonano_support

Windows Nano isn't a thing anymore so we shouldn't spending compute time checking to see if we're on Windows Nano

Signed-off-by: Tim Smith <tsmith@chef.io>

12 files changed, 52 insertions, 257 deletions

diff --git a/lib/chef/config.rb b/lib/chef/config.rb
index 6964d37abe..f204711384 100644
--- a/lib/chef/config.rb
+++ b/lib/chef/config.rb
@@ -56,7 +56,7 @@ class Chef
 
     default :event_loggers do
       evt_loggers = []
-      if ChefUtils.windows? && !Chef::Platform.windows_nano_server?
+      if ChefUtils.windows?
         evt_loggers << :win_evt
       end
       evt_loggers
diff --git a/lib/chef/platform/query_helpers.rb b/lib/chef/platform/query_helpers.rb
index 3cce4b5d2c..1ddbe09bf4 100644
--- a/lib/chef/platform/query_helpers.rb
+++ b/lib/chef/platform/query_helpers.rb
@@ -26,27 +26,9 @@ class Chef
         ChefUtils.windows?
       end
 
+      # @deprecated Windows Nano is not a thing anymore so this check shouldn't be used
       def windows_nano_server?
-        return false unless windows?
-
-        require "win32/registry" unless defined?(Win32::Registry)
-
-        # This method may be called before ohai runs (e.g., it may be used to
-        # determine settings in config.rb). Chef::Win32::Registry.new uses
-        # node attributes to verify the machine architecture which aren't
-        # accessible before ohai runs.
-        nano = nil
-        key = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Server\\ServerLevels"
-        access = ::Win32::Registry::KEY_QUERY_VALUE | 0x0100 # nano is 64-bit only
-        begin
-          ::Win32::Registry::HKEY_LOCAL_MACHINE.open(key, access) do |reg|
-            nano = reg["NanoServer"]
-          end
-        rescue ::Win32::Registry::Error
-          # If accessing the registry key failed, then we're probably not on
-          # nano. Fail through.
-        end
-        nano == 1
+        false
       end
 
       def supports_msi?
diff --git a/lib/chef/provider/powershell_script.rb b/lib/chef/provider/powershell_script.rb
index 418948e614..9cb807d3a9 100644
--- a/lib/chef/provider/powershell_script.rb
+++ b/lib/chef/provider/powershell_script.rb
@@ -47,14 +47,7 @@ class Chef
         # error status of a failed Windows process that ran at the
         # end of the script, it gets changed to '1'.
         #
-        # Nano only supports -Command
-        cmd = "\"#{interpreter_path}\" #{new_resource.flags}"
-        if Chef::Platform.windows_nano_server?
-          cmd << " -Command \". '#{script_file.path}'\""
-        else
-          cmd << " -File \"#{script_file.path}\""
-        end
-        cmd
+        "\"#{interpreter_path}\" #{new_resource.flags} -File \"#{script_file.path}\""
       end
 
       protected
diff --git a/lib/chef/resource/powershell_script.rb b/lib/chef/resource/powershell_script.rb
index 6cb1453376..154655f4d9 100644
--- a/lib/chef/resource/powershell_script.rb
+++ b/lib/chef/resource/powershell_script.rb
@@ -72,8 +72,6 @@ class Chef
 
       # Options that will be passed to Windows PowerShell command
       def default_flags
-        return "" if Chef::Platform.windows_nano_server?
-
         # Execution policy 'Bypass' is preferable since it doesn't require
         # user input confirmation for files such as PowerShell modules
         # downloaded from the Internet. However, 'Bypass' is not supported
diff --git a/lib/chef/resource/windows_script.rb b/lib/chef/resource/windows_script.rb
index f17b3e31c9..dd146deecc 100644
--- a/lib/chef/resource/windows_script.rb
+++ b/lib/chef/resource/windows_script.rb
@@ -54,10 +54,7 @@ class Chef
       protected
 
       def assert_architecture_compatible!(desired_architecture)
-        if desired_architecture == :i386 && Chef::Platform.windows_nano_server?
-          raise Chef::Exceptions::Win32ArchitectureIncorrect,
-            "cannot execute script with requested architecture 'i386' on Windows Nano Server"
-        elsif ! node_supports_windows_architecture?(node, desired_architecture)
+        unless node_supports_windows_architecture?(node, desired_architecture)
           raise Chef::Exceptions::Win32ArchitectureIncorrect,
             "cannot execute script with requested architecture '#{desired_architecture}' on a system with architecture '#{node_windows_architecture(node)}'"
         end
diff --git a/spec/functional/resource/powershell_script_spec.rb b/spec/functional/resource/powershell_script_spec.rb
index 74ece0d33c..32a128ac72 100644
--- a/spec/functional/resource/powershell_script_spec.rb
+++ b/spec/functional/resource/powershell_script_spec.rb
@@ -55,8 +55,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     end
 
     it "returns the exit status 27 for a powershell script that exits with 27" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       file = Tempfile.new(["foo", ".ps1"])
       begin
         file.write "exit 27"
@@ -73,7 +71,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     let (:negative_exit_status) { -27 }
     let (:unsigned_exit_status) { (-negative_exit_status ^ 65535) + 1 }
     it "returns the exit status -27 as a signed integer or an unsigned 16-bit 2's complement value of 65509 for a powershell script that exits with -27" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
 
       # Versions of PowerShell prior to 4.0 return a 16-bit unsigned value --
       # PowerShell 4.0 and later versions return a 32-bit signed value.
@@ -98,8 +95,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     end
 
     it "returns the process exit code" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code(arbitrary_nonzero_process_exit_code_content)
       resource.returns(arbitrary_nonzero_process_exit_code)
       resource.run_action(:run)
@@ -118,34 +113,24 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     end
 
     it "returns 1 if the last command was a cmdlet that failed" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code(cmdlet_exit_code_not_found_content)
       resource.returns(1)
       resource.run_action(:run)
     end
 
     it "returns 1 if the last command was a cmdlet that failed and was preceded by a successfully executed non-cmdlet Windows binary" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code([windows_process_exit_code_success_content, cmdlet_exit_code_not_found_content].join(";"))
       resource.returns(1)
       expect { resource.run_action(:run) }.not_to raise_error
     end
 
     it "raises a Mixlib::ShellOut::ShellCommandFailed error if the script is not syntactically correct" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code("if({)")
       resource.returns(0)
       expect { resource.run_action(:run) }.to raise_error(Mixlib::ShellOut::ShellCommandFailed)
     end
 
     it "raises an error if the script is not syntactically correct even if returns is set to 1 which is what powershell.exe returns for syntactically invalid scripts" do
-      # This test fails because shell_out expects the exit status to be 1, but it is actually 0
-      # The error is a false-positive.
-      skip "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code("if({)")
       resource.returns(1)
       expect { resource.run_action(:run) }.to raise_error(Mixlib::ShellOut::ShellCommandFailed)
@@ -160,32 +145,24 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     # errors than 0 or 1, we return that instead, which is acceptable
     # since callers can test for nonzero rather than testing for 1.
     it "returns 1 if the last command was a cmdlet that failed and was preceded by an unsuccessfully executed non-cmdlet Windows binary" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code([arbitrary_nonzero_process_exit_code_content, cmdlet_exit_code_not_found_content].join(";"))
       resource.returns(arbitrary_nonzero_process_exit_code)
       resource.run_action(:run)
     end
 
     it "returns 0 if the last command was a non-cmdlet Windows binary that succeeded and was preceded by a failed cmdlet" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code([cmdlet_exit_code_success_content, arbitrary_nonzero_process_exit_code_content].join(";"))
       resource.returns(arbitrary_nonzero_process_exit_code)
       resource.run_action(:run)
     end
 
     it "returns a specific error code if the last command was a non-cmdlet Windows binary that failed and was preceded by cmdlet that succeeded" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code([cmdlet_exit_code_success_content, arbitrary_nonzero_process_exit_code_content].join(";"))
       resource.returns(arbitrary_nonzero_process_exit_code)
       resource.run_action(:run)
     end
 
     it "returns a specific error code if the last command was a non-cmdlet Windows binary that failed and was preceded by cmdlet that failed" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code([cmdlet_exit_code_not_found_content, arbitrary_nonzero_process_exit_code_content].join(";"))
       resource.returns(arbitrary_nonzero_process_exit_code)
       resource.run_action(:run)
@@ -204,8 +181,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     end
 
     it "returns 1 for $false as the last line of the script when convert_boolean_return is true" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.convert_boolean_return true
       resource.code "$false"
       resource.returns(1)
@@ -245,8 +220,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
     end
 
     it "returns 1 if an invalid flag is passed to the interpreter" do
-      pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
       resource.code(cmdlet_exit_code_success_content)
       resource.flags(invalid_powershell_interpreter_flag)
       resource.returns(1)
@@ -318,7 +291,7 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       expect(source_contains_case_insensitive_content?( get_script_output, "AMD64" )).to eq(true)
     end
 
-    it "executes a script with a 32-bit process if :i386 arch is specified", :not_supported_on_nano do
+    it "executes a script with a 32-bit process if :i386 arch is specified" do
       resource.code(processor_architecture_script_content + " | out-file -encoding ASCII #{script_output_path}")
       resource.architecture(:i386)
       resource.returns(0)
@@ -326,12 +299,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
 
       expect(source_contains_case_insensitive_content?( get_script_output, "x86" )).to eq(true)
     end
-
-    it "raises an error when executing a script with a 32-bit process on Windows Nano Server", :windows_nano_only do
-      resource.code(processor_architecture_script_content + " | out-file -encoding ASCII #{script_output_path}")
-      expect { resource.architecture(:i386) }.to raise_error(Chef::Exceptions::Win32ArchitectureIncorrect,
-        "cannot execute script with requested architecture 'i386' on Windows Nano Server")
-    end
   end
 
   describe "when executing guards" do
@@ -385,8 +352,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a powershell $false for a not_if block as true" do
-        pending "powershell.exe always exits with $true on nano" if Chef::Platform.windows_nano_server?
-
         resource.not_if "$false"
         expect(resource.should_skip?(:run)).to be_falsey
       end
@@ -397,8 +362,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a powershell $false for an only_if block as false" do
-        pending "powershell.exe always exits with $true on nano" if Chef::Platform.windows_nano_server?
-
         resource.only_if "$false"
         expect(resource.should_skip?(:run)).to be_truthy
       end
@@ -419,8 +382,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a non-zero powershell exit status for not_if as true" do
-        pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
         resource.not_if "exit 37"
         expect(resource.should_skip?(:run)).to be_falsey
       end
@@ -431,8 +392,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a failed executable exit status for not_if as false" do
-        pending "powershell.exe always exits with success on nano" if Chef::Platform.windows_nano_server?
-
         resource.not_if windows_process_exit_code_not_found_content
         expect(resource.should_skip?(:run)).to be_falsey
       end
@@ -443,8 +402,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a failed executable exit status for only_if as false" do
-        pending "powershell.exe always exits with success on nano" if Chef::Platform.windows_nano_server?
-
         resource.only_if windows_process_exit_code_not_found_content
         expect(resource.should_skip?(:run)).to be_truthy
       end
@@ -455,8 +412,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a failed cmdlet exit status for not_if as true" do
-        pending "powershell.exe always exits with success on nano" if Chef::Platform.windows_nano_server?
-
         resource.not_if "throw 'up'"
         expect(resource.should_skip?(:run)).to be_falsey
       end
@@ -467,8 +422,6 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a failed cmdlet exit status for only_if as false" do
-        pending "powershell.exe always exits with success on nano" if Chef::Platform.windows_nano_server?
-
         resource.only_if "throw 'up'"
         expect(resource.should_skip?(:run)).to be_truthy
       end
@@ -511,36 +464,30 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
       end
 
       it "evaluates a 64-bit resource with a 64-bit guard and interprets boolean true as nonzero status code", :windows64_only do
-        pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
         resource.architecture :x86_64
         resource.only_if "exit [int32]($env:PROCESSOR_ARCHITECTURE -eq 'AMD64')"
         expect(resource.should_skip?(:run)).to be_truthy
       end
 
-      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean false as zero status code", :not_supported_on_nano do
+      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean false as zero status code" do
         resource.architecture :i386
         resource.only_if "exit [int32]($env:PROCESSOR_ARCHITECTURE -ne 'X86')"
         expect(resource.should_skip?(:run)).to be_falsey
       end
 
-      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean true as nonzero status code", :not_supported_on_nano do
+      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean true as nonzero status code" do
         resource.architecture :i386
         resource.only_if "exit [int32]($env:PROCESSOR_ARCHITECTURE -eq 'X86')"
         expect(resource.should_skip?(:run)).to be_truthy
       end
 
       it "evaluates a simple boolean false as nonzero status code when convert_boolean_return is true for only_if" do
-        pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
         resource.convert_boolean_return true
         resource.only_if "$false"
         expect(resource.should_skip?(:run)).to be_truthy
       end
 
       it "evaluates a simple boolean false as nonzero status code when convert_boolean_return is true for not_if" do
-        pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
         resource.convert_boolean_return true
         resource.not_if "$false"
         expect(resource.should_skip?(:run)).to be_falsey
@@ -558,41 +505,33 @@ describe Chef::Resource::WindowsScript::PowershellScript, :windows_only do
         expect(resource.should_skip?(:run)).to be_truthy
       end
 
-      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean false as zero status code using convert_boolean_return for only_if", :not_supported_on_nano do
+      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean false as zero status code using convert_boolean_return for only_if" do
         resource.convert_boolean_return true
         resource.architecture :i386
         resource.only_if "$env:PROCESSOR_ARCHITECTURE -eq 'X86'"
         expect(resource.should_skip?(:run)).to be_falsey
       end
 
-      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean false as zero status code using convert_boolean_return for not_if", :not_supported_on_nano do
+      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean false as zero status code using convert_boolean_return for not_if" do
         resource.convert_boolean_return true
         resource.architecture :i386
         resource.not_if "$env:PROCESSOR_ARCHITECTURE -ne 'X86'"
         expect(resource.should_skip?(:run)).to be_falsey
       end
 
-      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean true as nonzero status code using convert_boolean_return for only_if", :not_supported_on_nano do
+      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean true as nonzero status code using convert_boolean_return for only_if" do
         resource.convert_boolean_return true
         resource.architecture :i386
         resource.only_if "$env:PROCESSOR_ARCHITECTURE -ne 'X86'"
         expect(resource.should_skip?(:run)).to be_truthy
       end
 
-      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean true as nonzero status code using convert_boolean_return for not_if", :not_supported_on_nano do
+      it "evaluates a 32-bit resource with a 32-bit guard and interprets boolean true as nonzero status code using convert_boolean_return for not_if" do
         resource.convert_boolean_return true
         resource.architecture :i386
         resource.not_if "$env:PROCESSOR_ARCHITECTURE -eq 'X86'"
         expect(resource.should_skip?(:run)).to be_truthy
       end
-
-      it "raises an error when a 32-bit guard is used on Windows Nano Server", :windows_nano_only do
-        resource.only_if "$true", architecture: :i386
-        expect { resource.run_action(:run) }.to raise_error(
-          Chef::Exceptions::Win32ArchitectureIncorrect,
-          /cannot execute script with requested architecture 'i386' on Windows Nano Server/
-        )
-      end
     end
   end
 
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 3154e2f255..36ad0e5c48 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -153,11 +153,9 @@ RSpec.configure do |config|
   config.filter_run_excluding not_supported_on_aix: true if aix?
   config.filter_run_excluding not_supported_on_solaris: true if solaris?
   config.filter_run_excluding not_supported_on_gce: true if gce?
-  config.filter_run_excluding not_supported_on_nano: true if windows_nano_server?
   config.filter_run_excluding win2012r2_only: true unless windows_2012r2?
   config.filter_run_excluding windows64_only: true unless windows64?
   config.filter_run_excluding windows32_only: true unless windows32?
-  config.filter_run_excluding windows_nano_only: true unless windows_nano_server?
   config.filter_run_excluding windows_gte_10: true unless windows_gte_10?
   config.filter_run_excluding windows_lt_10: true if windows_gte_10?
   config.filter_run_excluding ruby64_only: true unless ruby_64bit?
diff --git a/spec/support/platform_helpers.rb b/spec/support/platform_helpers.rb
index c92b3dca39..f9d8955f1e 100644
--- a/spec/support/platform_helpers.rb
+++ b/spec/support/platform_helpers.rb
@@ -88,11 +88,6 @@ def windows_powershell_dsc?
   supports_dsc
 end
 
-def windows_nano_server?
-  require "chef/platform/query_helpers"
-  Chef::Platform.windows_nano_server?
-end
-
 def windows_user_right?(right)
   return false unless windows?
 
diff --git a/spec/support/shared/functional/windows_script.rb b/spec/support/shared/functional/windows_script.rb
index 49fd727055..eca63a6af3 100644
--- a/spec/support/shared/functional/windows_script.rb
+++ b/spec/support/shared/functional/windows_script.rb
@@ -99,7 +99,7 @@ shared_context Chef::Resource::WindowsScript do
         end
       end
 
-      context "when the guard's architecture is specified as 32-bit", :not_supported_on_nano do
+      context "when the guard's architecture is specified as 32-bit" do
         let (:guard_architecture) { :i386 }
         it "executes a 32-bit guard" do
           resource.only_if resource_guard_command, architecture: guard_architecture
@@ -107,17 +107,6 @@ shared_context Chef::Resource::WindowsScript do
           expect(get_guard_process_architecture).to eq("x86")
         end
       end
-
-      context "when the guard's architecture is specified as 32-bit", :windows_nano_only do
-        let (:guard_architecture) { :i386 }
-        it "raises an error" do
-          resource.only_if resource_guard_command, architecture: guard_architecture
-          expect { resource.run_action(:run) }.to raise_error(
-            Chef::Exceptions::Win32ArchitectureIncorrect,
-            /cannot execute script with requested architecture 'i386' on Windows Nano Server/
-          )
-        end
-      end
     end
   end
 
@@ -218,8 +207,6 @@ shared_context Chef::Resource::WindowsScript do
 
     context "when evaluating guards" do
       it "has a guard_interpreter attribute set to the short name of the resource" do
-        pending "powershell.exe always exits with 0 on nano" if Chef::Platform.windows_nano_server?
-
         expect(resource.guard_interpreter).to eq(resource.resource_name)
         resource.not_if "findstr.exe /thiscommandhasnonzeroexitstatus"
         expect(Chef::Resource).to receive(:resource_for_node).and_call_original
@@ -238,7 +225,7 @@ shared_context Chef::Resource::WindowsScript do
       it_behaves_like "a script resource with architecture attribute"
     end
 
-    context "when the architecture attribute is :i386", :not_supported_on_nano do
+    context "when the architecture attribute is :i386" do
       let(:resource_architecture) { :i386 }
       it_behaves_like "a script resource with architecture attribute"
     end
diff --git a/spec/unit/platform/query_helpers_spec.rb b/spec/unit/platform/query_helpers_spec.rb
index d5e4d09029..55e2b4b44c 100644
--- a/spec/unit/platform/query_helpers_spec.rb
+++ b/spec/unit/platform/query_helpers_spec.rb
@@ -18,77 +18,6 @@
 
 require "spec_helper"
 
-describe "Chef::Platform#windows_nano_server?" do
-  include_context "Win32"
-
-  let(:key) { "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Server\\ServerLevels" }
-  let(:key_query_value) { 0x0001 }
-  let(:access) { key_query_value | 0x0100 }
-  let(:hive) { double("Win32::Registry::HKEY_LOCAL_MACHINE") }
-  let(:registry) { double("Win32::Registry") }
-
-  before(:all) do
-    Win32::Registry = Class.new
-    Win32::Registry::Error = Class.new(RuntimeError)
-  end
-
-  before do
-    Win32::Registry::HKEY_LOCAL_MACHINE = hive
-    Win32::Registry::KEY_QUERY_VALUE = key_query_value
-  end
-
-  after do
-    Win32::Registry.send(:remove_const, "HKEY_LOCAL_MACHINE") if defined?(Win32::Registry::HKEY_LOCAL_MACHINE)
-    Win32::Registry.send(:remove_const, "KEY_QUERY_VALUE") if defined?(Win32::Registry::KEY_QUERY_VALUE)
-  end
-
-  it "returns false early when not on windows" do
-    allow(ChefUtils).to receive(:windows?).and_return(false)
-    expect(Chef::Platform).to_not receive(:require)
-    expect(Chef::Platform.windows_nano_server?).to be false
-  end
-
-  it "returns true when the registry value is 1" do
-    allow(ChefUtils).to receive(:windows?).and_return(true)
-    allow(Chef::Platform).to receive(:require).with("win32/registry")
-    expect(Win32::Registry::HKEY_LOCAL_MACHINE).to receive(:open)
-      .with(key, access)
-      .and_yield(registry)
-    expect(registry).to receive(:[]).with("NanoServer").and_return(1)
-    expect(Chef::Platform.windows_nano_server?).to be true
-  end
-
-  it "returns false when the registry value is not 1" do
-    allow(ChefUtils).to receive(:windows?).and_return(true)
-    allow(Chef::Platform).to receive(:require).with("win32/registry")
-    expect(Win32::Registry::HKEY_LOCAL_MACHINE).to receive(:open)
-      .with(key, access)
-      .and_yield(registry)
-    expect(registry).to receive(:[]).with("NanoServer").and_return(0)
-    expect(Chef::Platform.windows_nano_server?).to be false
-  end
-
-  it "returns false when the registry value does not exist" do
-    allow(ChefUtils).to receive(:windows?).and_return(true)
-    allow(Chef::Platform).to receive(:require).with("win32/registry")
-    expect(Win32::Registry::HKEY_LOCAL_MACHINE).to receive(:open)
-      .with(key, access)
-      .and_yield(registry)
-    expect(registry).to receive(:[]).with("NanoServer")
-      .and_raise(Win32::Registry::Error, "The system cannot find the file specified.")
-    expect(Chef::Platform.windows_nano_server?).to be false
-  end
-
-  it "returns false when the registry key does not exist" do
-    allow(ChefUtils).to receive(:windows?).and_return(true)
-    allow(Chef::Platform).to receive(:require).with("win32/registry")
-    expect(Win32::Registry::HKEY_LOCAL_MACHINE).to receive(:open)
-      .with(key, access)
-      .and_raise(Win32::Registry::Error, "The system cannot find the file specified.")
-    expect(Chef::Platform.windows_nano_server?).to be false
-  end
-end
-
 describe "Chef::Platform#supports_msi?" do
   include_context "Win32" # clear and restore Win32:: namespace
 
diff --git a/spec/unit/provider/powershell_script_spec.rb b/spec/unit/provider/powershell_script_spec.rb
index cca0f34067..0bb0bf701b 100644
--- a/spec/unit/provider/powershell_script_spec.rb
+++ b/spec/unit/provider/powershell_script_spec.rb
@@ -53,73 +53,55 @@ describe Chef::Provider::PowershellScript, "action_run" do
   end
 
   context "when setting interpreter flags" do
-    context "on nano" do
-      before(:each) do
-        allow(Chef::Platform).to receive(:windows_nano_server?).and_return(true)
-        allow(provider).to receive(:is_forced_32bit).and_return(false)
-        os_info_double = double("os_info")
-        allow(provider.run_context.node["kernel"]).to receive(:[]).with("os_info").and_return(os_info_double)
-        allow(os_info_double).to receive(:[]).with("system_directory").and_return("C:\\Windows\\system32")
-      end
-
-      it "sets the -Command flag as the last flag" do
-        flags = provider.command.split(" ").keep_if { |flag| flag =~ /^-/ }
-        expect(flags.pop).to eq("-Command")
-      end
+    before(:each) do
+      allow(provider).to receive(:is_forced_32bit).and_return(false)
+      os_info_double = double("os_info")
+      allow(provider.run_context.node["kernel"]).to receive(:[]).with("os_info").and_return(os_info_double)
+      allow(os_info_double).to receive(:[]).with("system_directory").and_return("C:\\Windows\\system32")
     end
 
-    context "not on nano" do
-      before(:each) do
-        allow(Chef::Platform).to receive(:windows_nano_server?).and_return(false)
-        allow(provider).to receive(:is_forced_32bit).and_return(false)
-        os_info_double = double("os_info")
-        allow(provider.run_context.node["kernel"]).to receive(:[]).with("os_info").and_return(os_info_double)
-        allow(os_info_double).to receive(:[]).with("system_directory").and_return("C:\\Windows\\system32")
-      end
+    it "sets the -File flag as the last flag" do
+      flags = provider.command.split(" ").keep_if { |flag| flag =~ /^-/ }
+      expect(flags.pop).to eq("-File")
+    end
 
-      it "sets the -File flag as the last flag" do
-        flags = provider.command.split(" ").keep_if { |flag| flag =~ /^-/ }
-        expect(flags.pop).to eq("-File")
-      end
+    let(:execution_policy_flag) do
+      provider_flags = provider.flags.split(" ")
+      # Last occurance of "executionpolicy"
+      execution_policy_index = provider_flags.map(&:downcase).rindex("-executionpolicy")
 
-      let(:execution_policy_flag) do
-        provider_flags = provider.flags.split(" ")
-        # Last occurance of "executionpolicy"
-        execution_policy_index = provider_flags.map(&:downcase).rindex("-executionpolicy")
+      execution_policy_index ? provider_flags[execution_policy_index + 1] : nil
+    end
 
-        execution_policy_index ? provider_flags[execution_policy_index + 1] : nil
+    context "when running with an unspecified PowerShell version" do
+      let(:powershell_version) { nil }
+      it "sets default -ExecutionPolicy flag to 'Unrestricted'" do
+        expect(execution_policy_flag.downcase).to eq("unrestricted".downcase)
       end
-
-      context "when running with an unspecified PowerShell version" do
-        let(:powershell_version) { nil }
-        it "sets default -ExecutionPolicy flag to 'Unrestricted'" do
-          expect(execution_policy_flag.downcase).to eq("unrestricted".downcase)
-        end
-        it "sets user defined -ExecutionPolicy flag to 'RemoteSigned'" do
-          set_user_defined_flag
-          expect(execution_policy_flag.downcase).to eq("RemoteSigned".downcase)
-        end
+      it "sets user defined -ExecutionPolicy flag to 'RemoteSigned'" do
+        set_user_defined_flag
+        expect(execution_policy_flag.downcase).to eq("RemoteSigned".downcase)
       end
+    end
 
-      { "2.0" => "Unrestricted",
-        "2.5" => "Unrestricted",
-        "3.0" => "Bypass",
-        "3.6" => "Bypass",
-        "4.0" => "Bypass",
-        "5.0" => "Bypass" }.each do |version_policy|
+    { "2.0" => "Unrestricted",
+      "2.5" => "Unrestricted",
+      "3.0" => "Bypass",
+      "3.6" => "Bypass",
+      "4.0" => "Bypass",
+      "5.0" => "Bypass" }.each do |version_policy|
+        let(:powershell_version) { version_policy[0].to_f }
+        context "when running PowerShell version #{version_policy[0]}" do
           let(:powershell_version) { version_policy[0].to_f }
-          context "when running PowerShell version #{version_policy[0]}" do
-            let(:powershell_version) { version_policy[0].to_f }
 
-            it "sets default -ExecutionPolicy flag to '#{version_policy[1]}'" do
-              expect(execution_policy_flag.downcase).to eq(version_policy[1].downcase)
-            end
-            it "sets user defined -ExecutionPolicy flag to 'RemoteSigned'" do
-              set_user_defined_flag
-              expect(execution_policy_flag.downcase).to eq("RemoteSigned".downcase)
-            end
+          it "sets default -ExecutionPolicy flag to '#{version_policy[1]}'" do
+            expect(execution_policy_flag.downcase).to eq(version_policy[1].downcase)
+          end
+          it "sets user defined -ExecutionPolicy flag to 'RemoteSigned'" do
+            set_user_defined_flag
+            expect(execution_policy_flag.downcase).to eq("RemoteSigned".downcase)
           end
         end
-    end
+      end
   end
 end
diff --git a/spec/unit/resource/powershell_script_spec.rb b/spec/unit/resource/powershell_script_spec.rb
index 5566f32725..ce6b8ecea4 100644
--- a/spec/unit/resource/powershell_script_spec.rb
+++ b/spec/unit/resource/powershell_script_spec.rb
@@ -47,11 +47,6 @@ describe Chef::Resource::PowershellScript do
     expect(@resource.convert_boolean_return).to eq(false)
   end
 
-  it "raises an error when architecture is i386 on Windows Nano Server" do
-    allow(Chef::Platform).to receive(:windows_nano_server?).and_return(true)
-    expect { @resource.architecture(:i386) }.to raise_error(Chef::Exceptions::Win32ArchitectureIncorrect, "cannot execute script with requested architecture 'i386' on Windows Nano Server")
-  end
-
   context "when using guards" do
     let(:resource) { @resource }
     before(:each) do