Merge pull request #4234 from b-dean/fixnum-array-args-fix

provisioner/shell: fix cannot handle Fixnum array args

plugins/provisioners/shell/config.rb

@@ -30,8 +30,8 @@ module VagrantPlugins
         @binary      = false if @binary == UNSET_VALUE
         @keep_color  = false if @keep_color == UNSET_VALUE
 
-        if @args && !@args.is_a?(Array) && args_valid?
-          @args = @args.to_s
+        if @args && args_valid?
+          @args = @args.is_a?(Array) ? @args.map { |a| a.to_s } : @args.to_s
         end
       end
 

test/unit/plugins/provisioners/shell/config_test.rb

@@ -86,4 +86,22 @@ describe "VagrantPlugins::Shell::Config" do
       ])
     end
   end
+
+  describe 'finalize!' do
+    it 'changes fixnum args into strings' do
+      subject.path = file_that_exists
+      subject.args = 1
+      subject.finalize!
+
+      expect(subject.args).to eq '1'
+    end
+
+    it 'changes fixnum args in arrays into strings' do
+      subject.path = file_that_exists
+      subject.args = ["string", 1, 2]
+      subject.finalize!
+
+      expect(subject.args).to eq ["string", '1', '2']
+    end
+  end
 end