fix: support Object as model value type (#263)

Co-authored-by: Artem Zakharchenko <kettanaito@gmail.com>

Author: StanleySathler

src/utils/isModelValueType.ts

@@ -1,10 +1,12 @@
 import { ModelValueType, PrimitiveValueType } from '../glossary'
+import { isObject } from './isObject'
 
 function isPrimitiveValueType(value: any): value is PrimitiveValueType {
   return (
     typeof value === 'string' ||
     typeof value === 'number' ||
     typeof value === 'boolean' ||
+    isObject(value) ||
     value?.constructor?.name === 'Date'
   )
 }

test/model/create.test.ts

@@ -31,6 +31,37 @@ test('creates a new entity with initial values', () => {
   expect(exactUser.id).toEqual('abc-123')
 })
 
+test('creates a new entity with an object property and no value specified', () => {
+  const db = factory({
+    user: {
+      id: primaryKey(faker.datatype.uuid),
+      settings: Object,
+    },
+  })
+
+  const exactUser = db.user.create({
+    id: 'abc-123',
+  })
+  expect(exactUser.id).toEqual('abc-123')
+  expect(exactUser.settings).toEqual({})
+})
+
+test('creates a new entity with an object property and a value specified', () => {
+  const db = factory({
+    user: {
+      id: primaryKey(faker.datatype.uuid),
+      settings: Object,
+    },
+  })
+
+  const exactUser = db.user.create({
+    id: 'abc-123',
+    settings: { minHue: 1 },
+  })
+  expect(exactUser.id).toEqual('abc-123')
+  expect(exactUser.settings).toEqual({ minHue: 1 })
+})
+
 test('creates a new entity with an array property', () => {
   const db = factory({
     user: {

test/utils/isModelValueType.test.ts

@@ -36,6 +36,10 @@ it('returns true when given nested primitive arrays', () => {
   expect(isModelValueType(['I am a string', [100]])).toBe(true)
 })
 
+it('returns true when given a literal object', () => {
+  expect(isModelValueType({ intensity: 1 })).toBe(true)
+})
+
 it('returns false given an undefined', () => {
   expect(isModelValueType(undefined)).toBe(false)
 })