add unit tests

index.ts

+import 'reflect-metadata';
+
 export * from './src/crud-base';
 export * from './src/bases';
 export * from './src/decorators';

src/bases/id-base.ts

 import { TimeBase } from './time-base';
 import { Generated, SelectQueryBuilder } from 'typeorm';
-import { applyQueryProperty } from '../utility/query';
+import { applyQueryProperty } from '../utility';
 import {
   IntColumn,
   MergePropertyDecorators,

src/bases/time-base.ts

 import { CreateDateColumn, DeleteDateColumn, UpdateDateColumn } from 'typeorm';
-import { PageSettingsDto } from '../dto/page-settings';
+import { PageSettingsDto } from '../dto';
 import { NotColumn } from '../decorators';
 
 export interface DeletionWise {
@@ -36,8 +36,10 @@ export class TimeBase
     return;
   }
 
+  // eslint-disable-next-line @typescript-eslint/no-empty-function
   async prepareForSaving(): Promise<void> {}
 
+  // eslint-disable-next-line @typescript-eslint/no-empty-function
   afterSaving() {}
 }
 

tests/sample.spec.ts

-describe('Sample test.', () => {
-  it('should pass', () => {
-    expect(true).toBe(true);
+import { Index } from 'typeorm';
+import { plainToInstance } from 'class-transformer';
+import { EnumColumn, IntColumn, StringColumn } from '../src/decorators';
+import { IdBase } from '../src/bases';
+import { validate } from 'class-validator';
+
+enum Gender {
+  F = 'F',
+  M = 'M',
+}
+
+class User extends IdBase() {
+  @Index()
+  @StringColumn(5, {
+    required: true,
+  })
+  name: string;
+
+  @IntColumn('int', { unsigned: true })
+  age: number;
+
+  @EnumColumn(Gender)
+  gender: Gender;
+}
+
+describe('nicot', () => {
+  it('create entity class', () => {
+    const good1 = plainToInstance(User, { name: 'John', age: 20 });
+    const good2 = plainToInstance(User, {
+      name: 'John',
+      age: 20,
+      gender: Gender.M,
+    });
+    const bad1 = plainToInstance(User, { name: 'John111', age: 20 });
+    const bad2 = plainToInstance(User, { age: 20 });
+    const bad3 = plainToInstance(User, { name: 'John', age: -1 });
+    const bad4 = plainToInstance(User, {
+      name: 'John',
+      age: 20,
+      gender: 'foo',
+    });
+    expect(validate(good1)).resolves.toEqual([]);
+    expect(validate(good2)).resolves.toEqual([]);
+    expect(validate(bad1)).resolves.not.toEqual([]);
+    expect(validate(bad2)).resolves.not.toEqual([]);
+    expect(validate(bad3)).resolves.not.toEqual([]);
+    expect(validate(bad4)).resolves.not.toEqual([]);
   });
 });