fix(store): error messages for empty array and nested objects

src/store.js

@@ -564,6 +564,12 @@ function setupModel(Model, nested) {
           if (isArray) {
             const nestedType = typeof defaultValue[0];
 
+            if (nestedType === "undefined") {
+              throw TypeError(
+                `The first item of the '${key}' array must be defined`,
+              );
+            }
+
             if (nestedType !== "object") {
               if (
                 nestedType === "function" &&
@@ -648,6 +654,12 @@ function setupModel(Model, nested) {
             };
           }
 
+          if (Object.keys(defaultValue).length === 0) {
+            throw TypeError(
+              `The object for the '${key}' must have at least one property`,
+            );
+          }
+
           const nestedConfig = bootstrap(defaultValue, true);
           if (nestedConfig.enumerable || nestedConfig.external) {
             if (

test/spec/store.js

@@ -106,6 +106,14 @@ describe("store:", () => {
       expect(() => store.get({ nested: [() => {}] })).toThrow();
     });
 
+    it("throws when nested array don't have a first item", () => {
+      expect(() => store.get({ nested: [] })).toThrow();
+    });
+
+    it("throws when nested object has no properties defined", () => {
+      expect(() => store.get({ nested: {} })).toThrow();
+    });
+
     it("set to an error state when get method returning undefined", () => {
       Model = {
         value: "test",