Add tests

lib/kubernetes-deploy/render_task.rb

@@ -68,11 +68,8 @@ def render_filename(filename, stream)
       @logger.info("Rendering #{File.basename(filename)} ...")
       file_content = File.read(File.join(@template_dir, filename))
       rendered_content = @renderer.render_template(filename, file_content)
-      YAML.load_stream(rendered_content, "<rendered> #{filename}") do |doc|
-        YAML.dump(doc)
-      end
       implicit = true
-      YAML.parse_stream(rendered_content) { |d| implicit = d.implicit }
+      YAML.parse_stream(rendered_content, "<rendered> #{filename}") { |d| implicit = d.implicit }
       stream.puts "---\n" if implicit
       stream.puts rendered_content
       @logger.info("Rendered #{File.basename(filename)}")

test/integration/render_task_test.rb

@@ -267,6 +267,28 @@ def test_render_valid_fixtures
     end
   end
 
+  def test_render_only_adds_initial_doc_seperator_when_missing
+    render = build_render_task(fixture_path('partials'))
+    fixture = 'no-doc-seperator.yml'
+    expected = "---\n# This doc has no yaml seperator\nkey1: foo\n"
+
+    assert_render_success(render.run(mock_output_stream, [fixture]))
+    stdout_assertion do |output|
+      assert_equal expected, output
+    end
+  end
+
+  def test_render_preserves_duplicate_keys_adds_doc_initial_seperator_when_needed
+    render = build_render_task(fixture_path('invalid-partials'))
+    fixture = 'duplicate-keys.yml'
+    expected = "---\nkey1: foo\nkey1: bar\n"
+
+    assert_render_success(render.run(mock_output_stream, [fixture]))
+    stdout_assertion do |output|
+      assert_equal expected, output
+    end
+  end
+
   private
 
   def build_render_task(template_dir, bindings = {})