AI Implementation feature(844): First-Start Create Admin Modal 1.03 (#6)

tests/frontend/setup-create-admin.spec.ts

@@ -13,6 +13,29 @@ function makeGroup(password: string | null | undefined, confirm: string | null |
   };
 }
 
+const USERNAME_PATTERN = /^[a-zA-Z0-9_.-]+$/;
+const USERNAME_MIN = 3;
+const USERNAME_MAX = 32;
+
+function usernameErrors(value: string): string | null {
+  if (!value) return 'required';
+  if (value.length < USERNAME_MIN) return 'minlength';
+  if (value.length > USERNAME_MAX) return 'maxlength';
+  if (!USERNAME_PATTERN.test(value)) return 'pattern';
+  return null;
+}
+
+function isFormReadyForSubmit(username: string, password: string, confirm: string): boolean {
+  if (usernameErrors(username) !== null) return false;
+  if (!password) return false;
+  if (!confirm) return false;
+  const groupLike: PasswordMatchGroupLike = {
+    get: (name) => (name === 'password' ? { value: password } : { value: confirm }),
+  };
+  if (passwordMatchValidator(groupLike)?.passwordMismatch) return false;
+  return true;
+}
+
 describe('passwordMatchValidator', () => {
   it('returns null when either field is empty (let other validators handle required)', () => {
     expect(passwordMatchValidator(makeGroup('', 'x'))).toBeNull();
@@ -58,3 +81,33 @@ describe('Username field rules (mirroring component validators)', () => {
     expect(isValidUsername('a'.repeat(33))).toBe(false);
   });
 });
+
+describe('Composed submit gate (mirrors SetupCreateAdminComponent.submit)', () => {
+  it('rejects an all-empty form (no required field passes)', () => {
+    expect(isFormReadyForSubmit('', '', '')).toBe(false);
+  });
+
+  it('rejects a partial form (username only)', () => {
+    expect(isFormReadyForSubmit('first.admin', '', '')).toBe(false);
+  });
+
+  it('rejects when password and confirm are empty even with a valid username', () => {
+    expect(isFormReadyForSubmit('first.admin', '', '')).toBe(false);
+  });
+
+  it('rejects when passwordConfirm is empty', () => {
+    expect(isFormReadyForSubmit('first.admin', 'Sup3rSecret!Pass', '')).toBe(false);
+  });
+
+  it('rejects when password and confirm differ', () => {
+    expect(isFormReadyForSubmit('first.admin', 'Sup3rSecret!Pass', 'Different!Pass1')).toBe(false);
+  });
+
+  it('rejects when username violates the pattern', () => {
+    expect(isFormReadyForSubmit('bad name!', 'Sup3rSecret!Pass', 'Sup3rSecret!Pass')).toBe(false);
+  });
+
+  it('accepts a fully valid, matching form', () => {
+    expect(isFormReadyForSubmit('first.admin', 'Sup3rSecret!Pass', 'Sup3rSecret!Pass')).toBe(true);
+  });
+});