Introduce toDynamic conversion for ParagraphLocalData class

Summary: This diff introduces a way to convert ParagraphLocalData object to dynamic objects

Reviewed By: shergin

Differential Revision: D9801892

fbshipit-source-id: e50217042a216ea67f28178bb80b136cbb8fb195

ReactCommon/fabric/components/text/tests/ParagraphLocalDataTest.cpp

@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+ #include <memory>
+
+#include <fabric/attributedstring/AttributedString.h>
+#include <fabric/attributedstring/TextAttributes.h>
+#include <fabric/attributedstring/primitives.h>
+#include <fabric/components/text/conversions.h>
+#include <fabric/components/text/ParagraphLocalData.h>
+#include <gtest/gtest.h>
+#include <assert.h>
+
+namespace facebook {
+namespace react {
+
+TEST(ParagraphLocalDataTest, testSomething) {
+  auto attString = AttributedString();
+  auto fragment = AttributedString::Fragment();
+  fragment.string = "test";
+
+  auto text = TextAttributes();
+  text.foregroundColor = {colorFromComponents({100/255.0, 153/255.0, 253/255.0, 1.0})};
+  text.opacity = 0.5;
+  text.fontStyle = FontStyle::Italic;
+  text.fontWeight = FontWeight::Thin;
+  text.fontVariant = FontVariant::TabularNums;
+  fragment.textAttributes = text;
+  attString.prependFragment(fragment);
+
+  auto paragraphLocalData = ParagraphLocalData();
+  paragraphLocalData.setAttributedString(attString);
+
+  auto result = toDynamic(paragraphLocalData)["attributedString"];
+
+  assert(result["string"] == fragment.string);
+  auto textAttribute = result["fragments"][0]["textAttributes"];
+  assert(textAttribute["foregroundColor"] == toDynamic(text.foregroundColor));
+  assert(textAttribute["opacity"] == text.opacity);
+  assert(textAttribute["fontStyle"] == toString(*text.fontStyle));
+  assert(textAttribute["fontWeight"] == toString(*text.fontWeight));
+}
+
+}
+}