test(Filtering): Adding a test for a declared IExpressionTree object.

Author: gedinakova

projects/igniteui-angular/src/lib/grids/grid/grid-filtering-advanced.spec.ts

@@ -1393,7 +1393,7 @@ describe('IgxGrid - Advanced Filtering #grid - ', () => {
 
     });
 
-    describe('Expression tree serialization - ', () => {
+    describe('Expression tree rehydration - ', () => {
         it('should correctly filter with a deserialized expression tree.', fakeAsync(() => {
             const errorSpy = spyOn(console, 'error');
             let fix = TestBed.createComponent(IgxGridAdvancedFilteringSerializedTreeComponent);
@@ -1406,6 +1406,36 @@ describe('IgxGrid - Advanced Filtering #grid - ', () => {
             expect(grid.filteredData.length).toEqual(3);
             expect(grid.rowList.length).toBe(3);
         }));
+
+        it('should correctly filter with a declared IFilteringExpressionsTree object.', fakeAsync(() => {
+            const errorSpy = spyOn(console, 'error');
+            let fix = TestBed.createComponent(IgxGridAdvancedFilteringSerializedTreeComponent);
+            fix.detectChanges();
+            fix.componentInstance.grid.advancedFilteringExpressionsTree = fix.componentInstance.filterTreeObject;
+            fix.detectChanges();
+            let grid = fix.componentInstance.grid;
+
+            expect(errorSpy).not.toHaveBeenCalled();
+
+            // Verify filtered data
+            expect(grid.filteredData.length).toEqual(2);
+            expect(grid.rowList.length).toBe(2);
+        }));
+
+        xit('should correctly filter when binding to a declared IFilteringExpressionsTree object.', fakeAsync(() => {
+            const errorSpy = spyOn(console, 'error');
+            let fix = TestBed.createComponent(IgxGridAdvancedFilteringSerializedTreeComponent);
+            fix.detectChanges();
+            fix.componentInstance.filterTree = fix.componentInstance.filterTreeObject;
+            fix.detectChanges();
+            let grid = fix.componentInstance.grid;
+
+            expect(errorSpy).not.toHaveBeenCalled();
+
+            // Verify filtered data
+            expect(grid.filteredData.length).toEqual(2);
+            expect(grid.rowList.length).toBe(2);
+        }));
     });
 });
 

projects/igniteui-angular/src/lib/test-utils/grid-samples.spec.ts

@@ -2092,6 +2092,7 @@ export class IgxGridAdvancedFilteringSerializedTreeComponent extends BasicGridCo
     public resizable = false;
     public filterable = true;
     public filterTree: IFilteringExpressionsTree;
+    public filterTreeObject: IFilteringExpressionsTree;
 
     public override data = SampleTestData.excelFilteringData();
 
@@ -2106,21 +2107,28 @@ export class IgxGridAdvancedFilteringSerializedTreeComponent extends BasicGridCo
             ],
             "operator": 0
         }`);
-        // this.filterTree = JSON.parse(`{ 
-        //     "filteringOperands":  [
-        //         {
-        //             "conditionName": "greaterThan",
-        //             "condition":{
-        //                  "name":"greaterThan",
-        //                  "isUnary":false,
-        //                  "iconName":"filter_greater_than"
-        //              },
-        //             "fieldName": "Downloads",
-        //             "searchVal": 200
-        //         }
-        //     ],
-        //     "operator": 0
-        // }`);
+
+        this.filterTreeObject =	{
+            "filteringOperands": [
+              {
+                "fieldName": "ProductName",
+                "condition": {
+                  "name": "contains",
+                  "isUnary": false,
+                  "iconName": "filter_contains"
+                },
+                "conditionName": "contains",
+                "ignoreCase": true,
+                "searchVal": "Ig",
+                "searchTree": null
+              }
+            ],
+            "operator": 1,
+            "returnFields": [
+              "ID",
+              "ProductName"
+            ]
+        };
     }
 }