Add test for format options used by the generator

The space_before, space, indent, object_nl and array_nl options of the
space were not covered.

Author: mmacvicar

tests/test_json_generate.rb

@@ -73,6 +73,19 @@ def test_generate_pretty
     assert_equal '666', pretty_generate(666, :quirks_mode => true)
   end
 
+  def test_generate_custom
+    state = State.new(space_before: " ", space: "   ", indent:"<i>", object_nl: "\n", array_nl: "<a_nl>")
+    json = generate({1=>{2=>3,4=>[5,6]}}, state)
+    assert_equal(<<'EOT'.chomp, json)
+{
+<i>"1" :   {
+<i><i>"2" :   3,
+<i><i>"4" :   [<a_nl><i><i><i>5,<a_nl><i><i><i>6<a_nl><i><i>]
+<i>}
+}
+EOT
+  end
+
   def test_fast_generate
     json = fast_generate(@hash)
     assert_equal(JSON.parse(@json2), JSON.parse(json))