Test that adding values to the JsonObject increase the size of the buffer

srcs/JsonBuffer.cpp

@@ -0,0 +1,15 @@
+#include "JsonBuffer.h"
+//#include "JsonNode.h"
+#include "JsonObject.h"
+
+
+JsonObject JsonBuffer::createObject()
+{
+    allocateNode();
+    return JsonObject(this);
+}
+
+void JsonBuffer::createNode()
+{
+    allocateNode();
+}

srcs/JsonBuffer.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <stddef.h>
+
+class JsonObject;
+struct JsonNode;
+
+class JsonBuffer
+{
+    friend class JsonObject;
+
+public:
+//    virtual ~JsonBuffer() = 0;
+
+    JsonObject createObject();
+
+protected:
+    virtual /*JsonNode&*/void allocateNode() = 0;
+    
+    /*JsonNode&*/void createNode();
+};
+

srcs/JsonObject.cpp

@@ -1,4 +1,4 @@
-//#include "JsonBuffer.h"
+#include "JsonBuffer.h"
 #include "JsonObject.h"
 #include "JsonValue.h"
 //#include "JsonNode.h"
@@ -33,6 +33,8 @@
 
 JsonValue JsonObject::operator[](char const* key)
 {
+    _buffer->createNode();
+    _buffer->createNode();
     _size++;
     return JsonValue();
 }

srcs/JsonObject.h

@@ -24,9 +24,8 @@ class JsonObject
 
 public:
 
-
-    explicit JsonObject()
-        : _size(0)
+    JsonObject(JsonBuffer* buffer)
+        : _size(0), _buffer(buffer)
     {
     }
 
@@ -41,8 +40,8 @@ private:
 
     int _size;
 
-    //    JsonBuffer& _buffer;
-    //    JsonNode& _node;
+    JsonBuffer* _buffer;
+    //JsonNode* _node;
     //
     //    void addNodeAt(char const* key, JsonNode& node);
     //    JsonNode& getNodeAt(const char* key);

srcs/StaticJsonBuffer.h

@@ -4,8 +4,10 @@
 #include "JsonObject.h"
 
 template<int CAPACITY>
-class StaticJsonBuffer //: public JsonBuffer
+class StaticJsonBuffer : public JsonBuffer
 {
+    friend JsonObject;
+
 public:
     
     explicit StaticJsonBuffer()
@@ -15,14 +17,6 @@ public:
 
     virtual ~StaticJsonBuffer() {}
 
-    JsonObject createObject()
-    {
-        if (_size < CAPACITY)
-            _size++;
-
-        return JsonObject();
-    }
-
     int capacity()
     {
         return CAPACITY;
@@ -34,7 +28,11 @@ public:
     }
 
 protected:
-    //virtual JsonNode& allocateNode();
+    virtual /*JsonNode&*/void allocateNode()
+    {
+        if (_size < CAPACITY)
+            _size++;
+    }
 
 private:
     //JsonNode _buffer[CAPACITY];

srcs/srcs.vcxproj

@@ -65,11 +65,13 @@
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="JsonBuffer.h" />
     <ClInclude Include="JsonObject.h" />
     <ClInclude Include="JsonValue.h" />
     <ClInclude Include="StaticJsonBuffer.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="JsonBuffer.cpp" />
     <ClCompile Include="JsonObject.cpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

srcs/srcs.vcxproj.filters

@@ -24,10 +24,16 @@
     <ClInclude Include="JsonValue.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="JsonBuffer.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="JsonObject.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="JsonBuffer.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>

tests/StaticJsonBufferTests.cpp

@@ -1,5 +1,6 @@
 #include <gtest/gtest.h>
 #include <StaticJsonBuffer.h>
+#include <JsonValue.h>
 
 TEST(StaticJsonBuffer, CapacityMatchTemplateParameter)
 {
@@ -35,10 +36,22 @@ TEST(StaticJsonBuffer, GivenBufferIsFull_WhenCreateObjectIsCalled_ThenSizeDoesNo
     EXPECT_EQ(1, json.size());
 }
 
-TEST(StaticJsonBuffer, WhenWhenCreateObjectIsCalled_ThenAnEmptyJsonObjectIsReturned)
+TEST(StaticJsonBuffer, WhenCreateObjectIsCalled_ThenAnEmptyJsonObjectIsReturned)
 {
     StaticJsonBuffer<42> json;
 
     JsonObject obj = json.createObject();
     EXPECT_EQ(0, obj.size());
 }
+
+TEST(StaticJsonBuffer, GivenAJsonObject_WhenValuesAreAdded_ThenSizeIsIncreasedByTwo)
+{
+    StaticJsonBuffer<42> json;
+    JsonObject obj = json.createObject();    
+
+    obj["hello"]; 
+    EXPECT_EQ(3, json.size());
+
+    obj["world"];
+    EXPECT_EQ(5, json.size());
+}