[ruby/json] Respect Coder depth when generating

ruby/json@9c36681b17

Author: etiennebarrie

ext/json/generator/generator.c

@@ -1549,7 +1549,7 @@ static VALUE cState_generate_new(int argc, VALUE *argv, VALUE self)
         .buffer = &buffer,
         .vstate = Qfalse,
         .state = state,
-        .depth = 0,
+        .depth = state->depth,
         .obj = obj,
         .func = generate_json
     };

test/json/json_coder_test.rb

@@ -134,7 +134,7 @@ def test_json_coder_string_invalid_encoding
 
   def test_depth
     coder = JSON::Coder.new(object_nl: "\n", array_nl: "\n", space: " ", indent: "  ", depth: 1)
-    assert_equal %({\n  "foo": 42\n}), coder.dump(foo: 42)
+    assert_equal %({\n    "foo": 42\n  }), coder.dump(foo: 42)
   end
 
   def test_nesting_recovery