test: canvas widget coverage junit (#26384)

## Description

Improve the coverage for Widgets in Junit

#### PR fixes following issue(s)
Fixes #25589

app/server/appsmith-git/src/test/java/com/appsmith/git/helpers/DSLTransformHelperTest.java

@@ -1,6 +1,7 @@
 package com.appsmith.git.helpers;
 
 import com.appsmith.git.constants.CommonConstants;
+import org.apache.commons.io.FileUtils;
 import org.json.JSONArray;
 import org.json.JSONObject;
 import org.junit.jupiter.api.Assertions;
@@ -9,7 +10,11 @@ import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.springframework.test.context.junit.jupiter.SpringExtension;
 
+import java.io.File;
+import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -20,6 +25,8 @@ public class DSLTransformHelperTest {
     private Map<String, JSONObject> jsonMap;
     private Map<String, List<String>> pathMapping;
 
+    String path = "src/test/resources";
+
     @BeforeEach
     public void setup() {
         // Initialize the JSON map and path mapping for each test
@@ -27,6 +34,17 @@ public class DSLTransformHelperTest {
         pathMapping = new HashMap<>();
     }
 
+    private String getWidgetDSL(String fileName) {
+        ClassLoader classLoader = getClass().getClassLoader();
+        File file = new File(classLoader.getResource("DSLWidget/" + fileName).getFile());
+        String data = CommonConstants.EMPTY_STRING;
+        try {
+            data = FileUtils.readFileToString(file, "UTF-8");
+        } catch (IOException ignored) {
+        }
+        return data;
+    }
+
     @Test
     public void testHasChildren_WithChildren() {
         JSONObject jsonObject = new JSONObject();
@@ -75,33 +93,23 @@ public class DSLTransformHelperTest {
         Assertions.assertFalse(result);
     }
 
-    /*@Test
+    @Test
     public void testCalculateParentDirectories() {
         // Test Case 1: Simple paths
-        List<String> paths1 = Arrays.asList(
-                "/root/dir1/file1",
-                "/root/dir1/file2",
-                "/root/dir2/file3",
-                "/root/dir3/file4"
-        );
+        List<String> paths1 =
+                Arrays.asList("/root/dir1/file1", "/root/dir1/file2", "/root/dir2/file3", "/root/dir3/file4");
         Map<String, List<String>> result1 = DSLTransformerHelper.calculateParentDirectories(paths1);
         Map<String, List<String>> expected1 = new HashMap<>();
-        expected1.put("root", Arrays.asList("/root/dir1/file1", "/root/dir1/file2", "/root/dir2/file3", "/root/dir3/file4"));
         expected1.put("dir1", Arrays.asList("/root/dir1/file1", "/root/dir1/file2"));
         expected1.put("dir2", Arrays.asList("/root/dir2/file3"));
         expected1.put("dir3", Arrays.asList("/root/dir3/file4"));
         Assertions.assertEquals(expected1, result1);
 
         // Test Case 2: Paths with duplicate directories
-        List<String> paths2 = Arrays.asList(
-                "/root/dir1/file1",
-                "/root/dir1/file2",
-                "/root/dir2/file3",
-                "/root/dir1/file4"
-        );
+        List<String> paths2 =
+                Arrays.asList("/root/dir1/file1", "/root/dir1/file2", "/root/dir2/file3", "/root/dir1/file4");
         Map<String, List<String>> result2 = DSLTransformerHelper.calculateParentDirectories(paths2);
         Map<String, List<String>> expected2 = new HashMap<>();
-        expected2.put("root", Arrays.asList("/root/dir1/file1", "/root/dir1/file2", "/root/dir2/file3", "/root/dir1/file4"));
         expected2.put("dir1", Arrays.asList("/root/dir1/file1", "/root/dir1/file2", "/root/dir1/file4"));
         expected2.put("dir2", Arrays.asList("/root/dir2/file3"));
         Assertions.assertEquals(expected2, result2);
@@ -113,18 +121,14 @@ public class DSLTransformHelperTest {
         Assertions.assertEquals(expected3, result3);
 
         // Test Case 4: Paths with single-level directories
-        List<String> paths4 = Arrays.asList(
-                "/dir1/file1",
-                "/dir2/file2",
-                "/dir3/file3"
-        );
+        List<String> paths4 = Arrays.asList("/dir1/file1", "/dir2/file2", "/dir3/file3");
         Map<String, List<String>> result4 = DSLTransformerHelper.calculateParentDirectories(paths4);
         Map<String, List<String>> expected4 = new HashMap<>();
         expected4.put("dir1", Arrays.asList("/dir1/file1"));
         expected4.put("dir2", Arrays.asList("/dir2/file2"));
         expected4.put("dir3", Arrays.asList("/dir3/file3"));
         Assertions.assertEquals(expected4, result4);
-    }*/
+    }
 
     // Test case for nested JSON object construction
     // --------------------------------------------------------------------
@@ -273,4 +277,30 @@ public class DSLTransformHelperTest {
                         .put(CommonConstants.PARENT_ID, "ExistingChild1")
                         .toString());
     }
+
+    @Test
+    public void compareWidgetsWithDSL() {
+        String dsl = getWidgetDSL("AllWidgetsDSL.json");
+        Map<String, JSONObject> flattenedWidgets = DSLTransformerHelper.flatten(new JSONObject(dsl));
+
+        // 62 because some of the widgets are nested inside List Modal etc
+        Assertions.assertEquals(flattenedWidgets.size(), 62);
+    }
+
+    @Test
+    public void tabWidget_withNestedChildren_AllWidgetsAreParsed() {
+        String dsl = getWidgetDSL("TabWidgetNestedChildren.json");
+        Map<String, JSONObject> flattenedWidgets = DSLTransformerHelper.flatten(new JSONObject(dsl));
+
+        for (Map.Entry<String, JSONObject> entry : flattenedWidgets.entrySet()) {
+            JSONObject widget = entry.getValue();
+            String relativePath = entry.getKey();
+            Assertions.assertEquals(relativePath.contains("Tabs1"), true);
+            if (widget.getString(CommonConstants.WIDGET_NAME).equals("Button1")) {
+                Assertions.assertEquals(relativePath.endsWith("Button1"), true);
+            } else if (widget.getString(CommonConstants.WIDGET_NAME).equals("CurrencyInput1")) {
+                Assertions.assertEquals(relativePath.endsWith("CurrencyInput1"), true);
+            }
+        }
+    }
 }

app/server/appsmith-git/src/test/resources/DSLWidget/TabWidgetNestedChildren.json

@@ -0,0 +1,292 @@
+{
+  "widgetName": "MainContainer",
+  "backgroundColor": "none",
+  "rightColumn": 1224,
+  "snapColumns": 64,
+  "detachFromLayout": true,
+  "widgetId": "0",
+  "topRow": 0,
+  "bottomRow": 520,
+  "containerStyle": "none",
+  "snapRows": 66,
+  "parentRowSpace": 1,
+  "type": "CANVAS_WIDGET",
+  "canExtend": true,
+  "version": 83,
+  "minHeight": 680,
+  "parentColumnSpace": 1,
+  "dynamicBindingPathList": [],
+  "leftColumn": 0,
+  "children": [
+    {
+      "boxShadow": "{{appsmith.theme.boxShadow.appBoxShadow}}",
+      "mobileBottomRow": 52,
+      "widgetName": "Tabs1",
+      "borderColor": "#E0DEDE",
+      "isCanvas": true,
+      "displayName": "Tabs",
+      "iconSVG": "/static/media/icon.9e3d67c0af9c0bd092dc56240314e18a.svg",
+      "topRow": 37,
+      "bottomRow": 52,
+      "parentRowSpace": 10,
+      "type": "TABS_WIDGET",
+      "hideCard": false,
+      "shouldScrollContents": true,
+      "mobileRightColumn": 60,
+      "animateLoading": true,
+      "parentColumnSpace": 0.984375,
+      "leftColumn": 12,
+      "dynamicBindingPathList": [
+        {
+          "key": "accentColor"
+        },
+        {
+          "key": "borderRadius"
+        },
+        {
+          "key": "boxShadow"
+        }
+      ],
+      "children": [
+        {
+          "tabId": "tab1",
+          "mobileBottomRow": 150,
+          "widgetName": "Canvas1",
+          "displayName": "Canvas",
+          "bottomRow": 110,
+          "topRow": 0,
+          "parentRowSpace": 1,
+          "type": "CANVAS_WIDGET",
+          "canExtend": true,
+          "hideCard": true,
+          "shouldScrollContents": false,
+          "minHeight": 150,
+          "mobileRightColumn": 23.625,
+          "parentColumnSpace": 1,
+          "leftColumn": 0,
+          "dynamicBindingPathList": [],
+          "children": [
+            {
+              "resetFormOnClick": false,
+              "boxShadow": "none",
+              "mobileBottomRow": 6,
+              "widgetName": "Button1",
+              "buttonColor": "{{appsmith.theme.colors.primaryColor}}",
+              "displayName": "Button",
+              "iconSVG": "/static/media/icon.05d209fafeb13a8569e3b4e97069d9ee.svg",
+              "searchTags": [
+                "click",
+                "submit"
+              ],
+              "topRow": 2,
+              "bottomRow": 6,
+              "parentRowSpace": 10,
+              "type": "BUTTON_WIDGET",
+              "hideCard": false,
+              "mobileRightColumn": 23,
+              "animateLoading": true,
+              "parentColumnSpace": 3.87109375,
+              "leftColumn": 7,
+              "dynamicBindingPathList": [
+                {
+                  "key": "buttonColor"
+                },
+                {
+                  "key": "borderRadius"
+                }
+              ],
+              "text": "Submit",
+              "isDisabled": false,
+              "key": "1bjhjogqwh",
+              "isDeprecated": false,
+              "rightColumn": 23,
+              "isDefaultClickDisabled": true,
+              "widgetId": "w1q15xxln9",
+              "minWidth": 120,
+              "isVisible": true,
+              "recaptchaType": "V3",
+              "version": 1,
+              "parentId": "p0x6x4f231",
+              "tags": [
+                "Buttons"
+              ],
+              "renderMode": "CANVAS",
+              "isLoading": false,
+              "mobileTopRow": 2,
+              "responsiveBehavior": "hug",
+              "disabledWhenInvalid": false,
+              "borderRadius": "{{appsmith.theme.borderRadius.appBorderRadius}}",
+              "mobileLeftColumn": 7,
+              "buttonVariant": "PRIMARY",
+              "placement": "CENTER"
+            }
+          ],
+          "isDisabled": false,
+          "key": "h25emmxpxr",
+          "isDeprecated": false,
+          "tabName": "Tab 1",
+          "rightColumn": 23.625,
+          "detachFromLayout": true,
+          "widgetId": "p0x6x4f231",
+          "minWidth": 450,
+          "isVisible": true,
+          "version": 1,
+          "parentId": "hi5yp56ffm",
+          "renderMode": "CANVAS",
+          "isLoading": false,
+          "mobileTopRow": 0,
+          "responsiveBehavior": "fill",
+          "mobileLeftColumn": 0,
+          "flexLayers": []
+        },
+        {
+          "tabId": "tab2",
+          "mobileBottomRow": 150,
+          "widgetName": "Canvas2",
+          "displayName": "Canvas",
+          "bottomRow": 110,
+          "topRow": 0,
+          "parentRowSpace": 1,
+          "type": "CANVAS_WIDGET",
+          "canExtend": true,
+          "hideCard": true,
+          "shouldScrollContents": false,
+          "minHeight": 150,
+          "mobileRightColumn": 23.625,
+          "parentColumnSpace": 1,
+          "leftColumn": 0,
+          "dynamicBindingPathList": [],
+          "children": [
+            {
+              "boxShadow": "none",
+              "iconSVG": "/static/media/icon.950aa351208d9d9b2a695b3881ec3779.svg",
+              "topRow": 2,
+              "defaultCurrencyCode": "INR",
+              "labelWidth": 5,
+              "type": "CURRENCY_INPUT_WIDGET",
+              "animateLoading": true,
+              "resetOnSubmit": true,
+              "leftColumn": 10,
+              "dynamicBindingPathList": [
+                {
+                  "key": "accentColor"
+                },
+                {
+                  "key": "borderRadius"
+                }
+              ],
+              "labelStyle": "",
+              "isDisabled": false,
+              "isRequired": false,
+              "dynamicHeight": "FIXED",
+              "accentColor": "{{appsmith.theme.colors.primaryColor}}",
+              "showStepArrows": false,
+              "isVisible": true,
+              "allowCurrencyChange": false,
+              "version": 1,
+              "tags": [
+                "Inputs"
+              ],
+              "isLoading": false,
+              "borderRadius": "{{appsmith.theme.borderRadius.appBorderRadius}}",
+              "mobileBottomRow": 9,
+              "widgetName": "CurrencyInput1",
+              "displayName": "Currency Input",
+              "searchTags": [
+                "amount",
+                "total"
+              ],
+              "bottomRow": 9,
+              "parentRowSpace": 10,
+              "autoFocus": false,
+              "hideCard": false,
+              "mobileRightColumn": 30,
+              "parentColumnSpace": 3.87109375,
+              "labelPosition": "Top",
+              "key": "ibpiq8rgcp",
+              "labelTextSize": "0.875rem",
+              "isDeprecated": false,
+              "rightColumn": 30,
+              "widgetId": "wp8ui4zlhz",
+              "minWidth": 450,
+              "label": "Label",
+              "parentId": "hvwk0q0v3j",
+              "labelAlignment": "left",
+              "renderMode": "CANVAS",
+              "mobileTopRow": 2,
+              "responsiveBehavior": "fill",
+              "mobileLeftColumn": 10,
+              "maxDynamicHeight": 9000,
+              "decimals": 0,
+              "iconAlign": "left",
+              "defaultText": "",
+              "minDynamicHeight": 4
+            }
+          ],
+          "isDisabled": false,
+          "key": "h25emmxpxr",
+          "isDeprecated": false,
+          "tabName": "Tab 2",
+          "rightColumn": 23.625,
+          "detachFromLayout": true,
+          "widgetId": "hvwk0q0v3j",
+          "minWidth": 450,
+          "isVisible": true,
+          "version": 1,
+          "parentId": "hi5yp56ffm",
+          "renderMode": "CANVAS",
+          "isLoading": false,
+          "mobileTopRow": 0,
+          "responsiveBehavior": "fill",
+          "mobileLeftColumn": 0,
+          "flexLayers": []
+        }
+      ],
+      "borderWidth": 1,
+      "key": "1gptcxl57m",
+      "backgroundColor": "#FFFFFF",
+      "isDeprecated": false,
+      "rightColumn": 60,
+      "dynamicHeight": "AUTO_HEIGHT",
+      "widgetId": "hi5yp56ffm",
+      "accentColor": "{{appsmith.theme.colors.primaryColor}}",
+      "defaultTab": "Tab 1",
+      "shouldShowTabs": true,
+      "minWidth": 450,
+      "tabsObj": {
+        "tab1": {
+          "label": "Tab 1",
+          "id": "tab1",
+          "widgetId": "p0x6x4f231",
+          "isVisible": true,
+          "index": 0,
+          "positioning": "vertical"
+        },
+        "tab2": {
+          "label": "Tab 2",
+          "id": "tab2",
+          "widgetId": "hvwk0q0v3j",
+          "isVisible": true,
+          "index": 1,
+          "positioning": "vertical"
+        }
+      },
+      "isVisible": true,
+      "version": 3,
+      "parentId": "0",
+      "tags": [
+        "Layout"
+      ],
+      "renderMode": "CANVAS",
+      "isLoading": false,
+      "mobileTopRow": 37,
+      "responsiveBehavior": "fill",
+      "originalTopRow": 37,
+      "borderRadius": "{{appsmith.theme.borderRadius.appBorderRadius}}",
+      "mobileLeftColumn": 36,
+      "maxDynamicHeight": 9000,
+      "originalBottomRow": 56,
+      "minDynamicHeight": 15
+    }
+  ]
+}