added missing methods to State + tests

lib/json/pure/generator.rb

@@ -163,6 +163,10 @@ def initialize(opts = {})
         # the generated JSON, max_nesting = 0 if no maximum is checked.
         attr_accessor :max_nesting
 
+        # This integer returns the current depth data structure nesting in the
+        # generated JSON.
+        attr_accessor :depth
+
         def check_max_nesting(depth) # :nodoc:
           return if @max_nesting.zero?
           current_nesting = depth + 1
@@ -196,6 +200,7 @@ def configure(opts)
           @array_nl       = opts[:array_nl] if opts.key?(:array_nl)
           @allow_nan      = !!opts[:allow_nan] if opts.key?(:allow_nan)
           @ascii_only     = opts[:ascii_only] if opts.key?(:ascii_only)
+          @depth          = opts[:depth] || 0
           if !opts.key?(:max_nesting) # defaults to 19
             @max_nesting = 19
           elsif opts[:max_nesting]
@@ -210,7 +215,7 @@ def configure(opts)
         # passed to the configure method.
         def to_h
           result = {}
-          for iv in %w[indent space space_before object_nl array_nl allow_nan max_nesting]
+          for iv in %w[indent space space_before object_nl array_nl allow_nan max_nesting ascii_only depth]
             result[iv.intern] = instance_variable_get("@#{iv}")
           end
           result

tests/test_json_generate.rb

@@ -102,6 +102,51 @@ def test_states
     assert s[:check_circular?]
   end
 
+  def test_pretty_state
+    state = PRETTY_STATE_PROTOTYPE.dup
+    assert_equal({
+      :allow_nan    => false,
+      :array_nl     => "\n",
+      :ascii_only   => false,
+      :depth        => 0,
+      :indent       => "  ",
+      :max_nesting  => 19,
+      :object_nl    => "\n",
+      :space        => " ",
+      :space_before => "",
+    }.sort_by { |n,| n.to_s }, state.to_h.sort_by { |n,| n.to_s })
+  end
+
+  def test_safe_state
+    state = SAFE_STATE_PROTOTYPE.dup
+    assert_equal({
+      :allow_nan    => false,
+      :array_nl     => "",
+      :ascii_only   => false,
+      :depth        => 0,
+      :indent       => "",
+      :max_nesting  => 19,
+      :object_nl    => "",
+      :space        => "",
+      :space_before => "",
+    }.sort_by { |n,| n.to_s }, state.to_h.sort_by { |n,| n.to_s })
+  end
+
+  def test_fast_state
+    state = FAST_STATE_PROTOTYPE.dup
+    assert_equal({
+      :allow_nan    => false,
+      :array_nl     => "",
+      :ascii_only   => false,
+      :depth        => 0,
+      :indent       => "",
+      :max_nesting  => 0,
+      :object_nl    => "",
+      :space        => "",
+      :space_before => "",
+    }.sort_by { |n,| n.to_s }, state.to_h.sort_by { |n,| n.to_s })
+  end
+
   def test_allow_nan
     assert_raises(GeneratorError) { generate([JSON::NaN]) }
     assert_equal '[NaN]', generate([JSON::NaN], :allow_nan => true)