ruby-on-rails - Rails:使用 ActiveRecord::StatementInvalid: PG::NotNullViolation: ERROR 测试失败

Question

我有一个非常简单的用户模型并想测试它:

class CreateUsers < ActiveRecord::Migration
  def change
    create_table :users do |t|
      t.string :name
      t.string :email

      t.timestamps null: false
    end
  end
end

这是我在 test/models/user_test.rb 中的内容:

require 'test_helper'

class UserTest < ActiveSupport::TestCase

  test "shoudl always pass" do
    assert true
  end

end

命令 rake test 抛出以下错误:

  1) Error:
UserTest#test_shoudl_always_pass:
ActiveRecord::StatementInvalid: PG::NotNullViolation: ERROR:  null value in column "name" violates not-null constraint
DETAIL:  Failing row contains (980190962, null, null, null, 2015-10-12 09:10:40, 2015-10-12 09:10:40).
: INSERT INTO "keywords" ("created_at", "updated_at", "id") VALUES ('2015-10-12 09:10:40', '2015-10-12 09:10:40', 980190962)

为什么我在一个几乎为空的测试用例上遇到如此奇怪的错误以及如何解决它？

Answer 1

解决了!注释行 fixtures :all in test_helper.rb