[7.6.0][CDE] ApiUniColor.ToJSON check (#1015)

* feature: ApiUniColor.ToJSON

* ref: ApiUniColor.ToJSON

* ref: ApiUniColor.ToJSON

* ref: ApiUniColor.ToJSON

* ref: ApiUniColor.ToJSON

js/docx/smoke/api_uni_color/to_json.js

@@ -0,0 +1,25 @@
+builder.CreateFile("docx");
+    let oDocument = Api.GetDocument();
+    let oParagraph = oDocument.GetElement(0);
+    // RGBColor is an inheritor of UniColor class.
+    // It is impossible to use an instance of UniColor class directly
+    let oRGBColor = Api.CreateRGBColor(255, 111, 61);
+    let oFill = Api.CreateSolidFill(oRGBColor);
+        oParagraph.AddText(oFill.ToJSON());
+        GlobalVariable["JSON_UniColor"] = oFill.ToJSON();
+builder.CloseFile();
+
+/////////////////////
+
+builder.CreateFile("docx");
+    let oDocument = Api.GetDocument();
+    let oParagraph = oDocument.GetElement(0);
+    let jsonSolidFill = GlobalVariable["JSON_UniColor"];
+    let oFillRestored = Api.FromJSON(jsonSolidFill);
+    let oStroke = Api.CreateStroke(0, Api.CreateNoFill());
+    let oDrawing = Api.CreateShape("rect", 5930900, 395605, oFillRestored, oStroke);
+    let jsonDrawing = oDrawing.ToJSON(false, true);
+        oParagraph.AddText(jsonDrawing);
+        oDocument.Push(oParagraph);
+builder.SaveFile("docx", "UnicolorToJson.docx");
+builder.CloseFile();

spec/docx/smoke/api_uni_color_spec.rb

@@ -6,4 +6,14 @@
     docx = builder.build_and_parse('js/docx/smoke/api_uni_color/get_class_type.js')
     expect(docx.elements[1].nonempty_runs.first.text).to eq('Class Type = presetColor')
   end
+
+  it 'ApiUniColor | ToJSON method' do
+    docx = builder.build_and_parse('js/docx/smoke/api_uni_color/to_json.js')
+    json = JSON.parse(docx.elements[0].nonempty_runs.first.text)
+    color = json['graphic']['spPr']['fill']['fill']['color']
+    expect(color['type']).to eq('uniColor')
+    expect(color['color']['rgba']['red']).to eq(255)
+    expect(color['color']['rgba']['green']).to eq(111)
+    expect(color['color']['rgba']['blue']).to eq(61)
+  end
 end