add some tests

src/process/filter/__tests__/filter.test.ts

@@ -0,0 +1,73 @@
+import { expect } from 'chai';
+
+import { filterProcessSync } from '../';
+import { generateProcessorContext } from '../../__tests__/fixtures/util';
+
+it('Should not filter empty array value for dataGrid component', async () => {
+    const dataGridComp = {
+        type: 'datagrid',
+        key: 'dataGrid',
+        input: true,
+        path: 'dataGrid',
+        components: [
+            {
+                type: 'textfield',
+                key: 'textField',
+                input: true,
+                label: 'Text Field'
+            }
+        ]
+    };
+    const data = {
+        dataGrid: []
+    };
+    const context: any = generateProcessorContext(dataGridComp, data);
+    filterProcessSync(context);
+    expect(context.scope.filter).to.deep.equal({'dataGrid': true});
+});
+
+it('Should not filter empty array value for editGrid component', async () => {
+    const editGridComp = {
+        type: 'editgrid',
+        key: 'editGrid',
+        input: true,
+        path: 'editGrid',
+        components: [
+            {
+                type: 'textfield',
+                key: 'textField',
+                input: true,
+                label: 'Text Field'
+            }
+        ]
+    };
+    const data = {
+        editGrid: []
+    };
+    const context: any = generateProcessorContext(editGridComp, data);
+    filterProcessSync(context);
+    expect(context.scope.filter).to.deep.equal({'editGrid': true});
+});
+
+it('Should not filter empty array value for datTable component', async () => {
+    const dataTableComp = {
+        type: 'datatable',
+        key: 'dataTable',
+        input: true,
+        path: 'dataTable',
+        components: [
+            {
+                type: 'textfield',
+                key: 'textField',
+                input: true,
+                label: 'Text Field'
+            }
+        ]
+    };
+    const data = {
+        dataTable: []
+    };
+    const context: any = generateProcessorContext(dataTableComp, data);
+    filterProcessSync(context);
+    expect(context.scope.filter).to.deep.equal({'dataTable': true});
+});