Added tests for modifyRows module

Author: Devorein

tests/utils/modifyRows.test.ts

@@ -0,0 +1,52 @@
+import { modifyRows } from '../../src/utils/modifyRows';
+
+it('Should work', () => {
+  const rows = modifyRows(
+    {
+      block: {
+        block_1: {
+          role: 'editor',
+          value: {
+            properties: {
+              title: [['A']]
+            }
+          } as any
+        },
+        block_2: {
+          role: 'editor',
+          value: {
+            properties: {
+              title: [['C']]
+            }
+          } as any
+        },
+        block_3: {
+          role: 'editor',
+          value: {
+            properties: {
+              title: [['B']]
+            }
+          } as any
+        }
+      }
+    },
+    'block_4'
+  );
+  expect(rows).toStrictEqual([
+    {
+      properties: {
+        title: [['A']]
+      }
+    },
+    {
+      properties: {
+        title: [['B']]
+      }
+    },
+    {
+      properties: {
+        title: [['C']]
+      }
+    }
+  ]);
+});