[英]Angular's FormControl method markAsTouched not working in a test case
我有此功能,用於檢查password
和confirmPassword
字段是否具有相同的值。 如果不是,則將該表單標記為invalid
confirmPasswordValidator(passwordGroupForm: AbstractControl){
let password = passwordGroupForm.get('password');
let confirmPassword = passwordGroupForm.get('confirmPassword');
console.log("password is "+password +"and confirmPassword is "+confirmPassword);
console.log("confirm password touched",confirmPassword.touched );
if(!confirmPassword.touched) return null ;//don't mark form invalid if the user hasn't interacted with confirmPassword field
else {
return (password.value === confirmPassword.value) ? null : {
confirmPasswordValidator: {
valid: false,
message: 'Password and Verify Password fields do not match'
}
}
}
}
我編寫了以下測試用例,以檢查該功能是否正常運行。
it('should not submit form if password and confirm password are not the same',()=>{
let formControls = component.signupForm.controls;
let userService = TestBed.get(UserManagementService);
spyOn(userService,'addUser');
formControls['firstName'].setValue("first");
formControls['lastName'].setValue("last");
formControls['email'].setValue("e@e.com");
formControls['password'].setValue("aA1!1111");
formControls['confirmPassword'].setValue("aA1!11112");
fixture.detectChanges();
formControls['confirmPassword'].markAsTouched();
console.log("after control touched, touch value is",formControls['confirmPassword'].markAsTouched());
component.addUser();
expect(component.signupForm.valid).toBeFalsy();
expect(userService.addUser).not.toHaveBeenCalled();
});
但是測試用例失敗,並出現錯誤Expected true to be falsy.
在瀏覽器窗口中,我可以看到它顯示的touched
屬性為true
和false
! (見圖)
我可以看到confirmPassword
字段未被觸摸。 我究竟做錯了什么?
在設置其值之前,我不得不將該字段標記為臟
formControls['confirmPassword'].markAsTouched({onlySelf:true});
formControls['confirmPassword'].setValue("aA1!11112");
setValue
似乎正在運行表單驗證,並且由於當時未將該字段標記為已觸摸,因此confirmPasswordValidator
由Angular運行,並且它返回null
使表單有效。 調用markAsTouched
不會重新運行表單驗證,然后addUser
會找到有效的表單。
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