diff --git a/src/tests/resources/state.json b/src/tests/resources/state.json
new file mode 100644
index 0000000..2152cd1
--- /dev/null
+++ b/src/tests/resources/state.json
@@ -0,0 +1,182 @@
+{
+    "isSidebarOpen": true,
+    "isElementsSidebarOpen": false,
+    "isHistoryOpen": false,
+    "configuration": {
+        "AvailableContainers": [
+            {
+                "Type": "Chassis",
+                "Width": 500,
+                "Style": {
+                    "fillOpacity": 0,
+                    "borderWidth": 2,
+                    "stroke": "red"
+                }
+            },
+            {
+                "Type": "Trou",
+                "Width": 300,
+                "Style": {
+                    "fillOpacity": 0,
+                    "borderWidth": 2,
+                    "stroke": "green"
+                }
+            },
+            {
+                "Type": "Montant",
+                "Width": 100,
+                "Style": {
+                    "fillOpacity": 0,
+                    "borderWidth": 2,
+                    "stroke": "blue",
+                    "transform": "translateX(-50%)",
+                    "transformOrigin": "center",
+                    "transformBox": "fill-box"
+                }
+            }
+        ],
+        "AvailableSymbols": [
+            {
+                "Height": 0,
+                "Image": {
+                    "Base64Image": null,
+                    "Name": null,
+                    "Svg": null,
+                    "Url": "https://www.manutan.fr/img/S/GRP/ST/AIG3930272.jpg"
+                },
+                "Name": "Poteau structure",
+                "Width": 0,
+                "XPositionReference": 1
+            },
+            {
+                "Height": 0,
+                "Image": {
+                    "Base64Image": null,
+                    "Name": null,
+                    "Svg": null,
+                    "Url": "https://e7.pngegg.com/pngimages/647/127/png-clipart-svg-working-group-information-world-wide-web-internet-structure.png"
+                },
+                "Name": "Joint de structure",
+                "Width": 0,
+                "XPositionReference": 0
+            }
+        ],
+        "MainContainer": {
+            "Height": 200,
+            "Width": 1000
+        }
+    },
+    "history": [
+        {
+            "MainContainer": {
+                "children": [],
+                "properties": {
+                    "id": "main",
+                    "parentId": "null",
+                    "x": 0,
+                    "y": 0,
+                    "width": 1000,
+                    "height": 200,
+                    "fillOpacity": 0,
+                    "stroke": "black"
+                },
+                "userData": {}
+            },
+            "TypeCounters": {}
+        },
+        {
+            "MainContainer": {
+                "children": [
+                    {
+                        "children": [],
+                        "properties": {
+                            "id": "Chassis-0",
+                            "parentId": "main",
+                            "x": 0,
+                            "y": 0,
+                            "width": 500,
+                            "height": 200,
+                            "fillOpacity": 0,
+                            "borderWidth": 2,
+                            "stroke": "red"
+                        },
+                        "userData": {
+                            "type": "Chassis"
+                        }
+                    }
+                ],
+                "properties": {
+                    "id": "main",
+                    "parentId": "null",
+                    "x": 0,
+                    "y": 0,
+                    "width": 1000,
+                    "height": 200,
+                    "fillOpacity": 0,
+                    "stroke": "black"
+                },
+                "userData": {}
+            },
+            "TypeCounters": {
+                "Chassis": 0
+            },
+            "SelectedContainerId": "main"
+        },
+        {
+            "MainContainer": {
+                "children": [
+                    {
+                        "children": [],
+                        "properties": {
+                            "id": "Chassis-0",
+                            "parentId": "main",
+                            "x": 0,
+                            "y": 0,
+                            "width": 500,
+                            "height": 200,
+                            "fillOpacity": 0,
+                            "borderWidth": 2,
+                            "stroke": "red"
+                        },
+                        "userData": {
+                            "type": "Chassis"
+                        }
+                    },
+                    {
+                        "children": [],
+                        "properties": {
+                            "id": "Chassis-1",
+                            "parentId": "main",
+                            "x": 500,
+                            "y": 0,
+                            "width": 500,
+                            "height": 200,
+                            "fillOpacity": 0,
+                            "borderWidth": 2,
+                            "stroke": "red"
+                        },
+                        "userData": {
+                            "type": "Chassis"
+                        }
+                    }
+                ],
+                "properties": {
+                    "id": "main",
+                    "parentId": "null",
+                    "x": 0,
+                    "y": 0,
+                    "width": 1000,
+                    "height": 200,
+                    "fillOpacity": 0,
+                    "stroke": "black"
+                },
+                "userData": {}
+            },
+            "TypeCounters": {
+                "Chassis": 1
+            },
+            "SelectedContainerId": "main"
+        }
+    ],
+    "historyCurrentStep": 2
+}
\ No newline at end of file