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| 1 | +import { Component } from '@angular/core'; |
| 2 | +import { FormBuilder, FormControl, FormGroup, Validators, ReactiveFormsModule } from '@angular/forms'; |
| 3 | +import userEvent from '@testing-library/user-event'; |
| 4 | +import { render, screen } from '@testing-library/angular'; |
| 5 | + |
| 6 | +@Component({ |
| 7 | + selector: 'app-login', |
| 8 | + template: `<h1>Login</h1> |
| 9 | + |
| 10 | + <form [formGroup]="form" (submit)="onSubmit(form)"> |
| 11 | + <input type="email" aria-label="email" formControlName="email" /> |
| 12 | + <div *ngIf="email.invalid && (email.dirty || email.touched)"> |
| 13 | + <div *ngIf="email.errors?.['required']">Email is required</div> |
| 14 | + </div> |
| 15 | + <input type="password" aria-label="password" formControlName="password" /> |
| 16 | + <div *ngIf="password.invalid && (password.dirty || password.touched)"> |
| 17 | + <div *ngIf="password.errors?.['required']">Password is required</div> |
| 18 | + </div> |
| 19 | + <button type="submit" aria-label="submit" [disabled]="form.invalid">Submit</button> |
| 20 | + </form> `, |
| 21 | +}) |
| 22 | +class LoginComponent { |
| 23 | + form: FormGroup = this.fb.group({ |
| 24 | + email: ['', [Validators.required]], |
| 25 | + password: ['', [Validators.required]], |
| 26 | + }); |
| 27 | + |
| 28 | + constructor(private fb: FormBuilder) {} |
| 29 | + |
| 30 | + get email(): FormControl { |
| 31 | + return this.form.get('email') as FormControl; |
| 32 | + } |
| 33 | + |
| 34 | + get password(): FormControl { |
| 35 | + return this.form.get('password') as FormControl; |
| 36 | + } |
| 37 | + |
| 38 | + onSubmit(_fg: FormGroup): void { |
| 39 | + // do nothing |
| 40 | + } |
| 41 | +} |
| 42 | + |
| 43 | +describe('LoginComponent', () => { |
| 44 | + const setup = async () => { |
| 45 | + return render(LoginComponent, { |
| 46 | + imports: [ReactiveFormsModule], |
| 47 | + }); |
| 48 | + }; |
| 49 | + |
| 50 | + it('should create a component with inputs and a button to submit', async () => { |
| 51 | + await setup(); |
| 52 | + |
| 53 | + expect(screen.getByRole('textbox', { name: 'email' })).toBeInTheDocument(); |
| 54 | + expect(screen.getByLabelText('password')).toBeInTheDocument(); |
| 55 | + expect(screen.getByRole('button', { name: 'submit' })).toBeInTheDocument(); |
| 56 | + }); |
| 57 | + |
| 58 | + it('should show a message required to password and login and a button must be disabled', async () => { |
| 59 | + await setup(); |
| 60 | + |
| 61 | + await userEvent.click(screen.getByRole('textbox', { name: 'email' })); |
| 62 | + await userEvent.click(screen.getByLabelText('password')); |
| 63 | + await userEvent.tab(); |
| 64 | + await userEvent.click(screen.getByRole('button', { name: 'submit' })); |
| 65 | + |
| 66 | + expect(screen.getAllByText(/required/i).length).toBe(2); |
| 67 | + expect(screen.getByRole('button', { name: 'submit' })).toBeDisabled(); |
| 68 | + }); |
| 69 | +}); |
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