feat: add unit tests for tenant, guarantor, lease card, dashboard, session, theme, and workspace services

frontend/src/app/components/tenant-form/tenant-form.spec.ts

@@ -1,4 +1,5 @@
 import { TestBed } from '@angular/core/testing';
+import { vi } from 'vitest';
 import { TenantForm } from './tenant-form';
 
 describe('TenantForm', () => {
@@ -15,4 +16,21 @@ describe('TenantForm', () => {
 
     expect(firstName).toBe('Camille');
   });
+
+  it('loads an existing tenant and leaves invalid data untouched', () => {
+    const fixture = TestBed.createComponent(TenantForm);
+    fixture.componentRef.setInput('tenant', {
+      id: 'tenant-1', firstName: 'Camille', lastName: 'Martin', email: 'camille@example.com', phone: '0600000000', address: '1 rue de Paris',
+    });
+    fixture.detectChanges();
+    const markAllAsTouched = vi.fn();
+    const submitted = vi.fn();
+    fixture.componentInstance.submitted.subscribe(submitted);
+
+    fixture.componentInstance.save({ invalid: true, control: { markAllAsTouched } } as never);
+
+    expect(fixture.componentInstance.firstName()).toBe('Camille');
+    expect(markAllAsTouched).toHaveBeenCalled();
+    expect(submitted).not.toHaveBeenCalled();
+  });
 });