[test] Fix invalid mergeables

Author: jamesgpearce

test/unit/core/store/mergeable-store.test.ts

@@ -668,25 +668,27 @@ describe('applyMergeableChanges/setMergeableContent', () => {
   });
 
   test.each([
-    '',
-    1,
-    true,
-    {},
-    [1],
     [''],
-    ['', {}],
-    [0, {}, 0],
-    ['', {}, 0],
-    ['', {}, ''],
-    ['', [0, 0], 0],
-    ['', [[], []], 0],
+    [1],
+    [true],
+    [{}],
+    [[]],
+    [['']],
+    [['', {}]],
+    [[0, {}, 0]],
+    [['', {}, 0]],
+    [['', {}, '']],
+    [['', [0, 0], 0]],
+    [['', [[], []], 0]],
     [
-      '',
       [
-        ['', 0, 0],
-        ['', 0, 0],
+        '',
+        [
+          ['', 0, 0],
+          ['', 0, 0],
+        ],
+        0,
       ],
-      0,
     ],
   ])('set with invalid structure, %s', (invalid: any) => {
     store.setContent([{t1: {r1: {c1: 1}}}, {v1: 1}]);