Add test case for #213

Author: oozcitak

test/issues/213.coffee

@@ -0,0 +1,11 @@
+suite 'Tests specific to issues:', ->
+  test 'Issue #213: importDocument created from begin()', ->
+    boldDoc = xml('b').text('Hello World')
+    doc = doc().importDocument(boldDoc)
+    main = xml({ headless: true }, 'p').importDocument(doc)
+
+    eq(
+      main.end()
+      '<p><b>Hello World</b></p>'
+    )
+