标签: expectations

我主要使用GoogleMock的有序期望,因此所有内容EXPECT_CALL都写在testing::InSequence对象的范围内.

现在我想放松排序,所以我将期望分成2个序列.你会说测试应该通过,但是没有 - 它失败了,抱怨未满足的前提条件.我该如何解释这个？

编辑:我的代码的缩减版本:

//InSequence s;                                     // uncomment this and it works
for (int i = 1; i <= 2; ++i)
{
    {
        //InSequence s;                             // uncomment this and it doesn't work

        EXPECT_CALL(mock1, produceMessage(_))
            .WillOnce(DoAll(SetArgReferee<0>(val1), Return(false)))
            .WillOnce(DoAll(SetArgReferee<0>(val2), Return(false)))
            .WillOnce(DoAll(SetArgReferee<0>(val2), Return(false)));

        EXPECT_CALL(mock2, handleEvent(A<MyType>()));
        EXPECT_CALL(mock2, handleMessage(NotNull()));
    }
}

因此,如果InSequence嵌套在for循环中,我应该有一个部分顺序,这是一个宽松的要求,与InSequence在外面的情况相比.

我得到的错误:

Mock function called more times than expected - returning default value.
    Function call: handleMessage(0xd7e708)
          Returns: false
         Expected: to be called once
           Actual: called twice - …

我想做这样的事情：

TEST(MyTestFixture, printAfterExpectationFailure)
{
  const string request("bring me tea");

  const string&& response = sendRequestAndGetResponse(request);

  checkResponseWithExpectarions1(response);
  checkResponseWithExpectarions2(response);
  checkResponseWithExpectarions3(response);
  checkResponseWithExpectarions4(response);

  if (anyOfExpectsFailed())
      cout << "Request: " << request << "\nresponse: " << response << endl;
}

TEST(MyTestFixture, printAfterAssertionFailure)
{
  const string request("bring me tea");

  const string&& response = sendRequestAndGetResponse(request);

  doWhenFailure([&request, &response]()
  {
      cout << "Request: " << request << "\nresponse: " << response << endl;
  });

  checkResponseWithAssertion1(response);
  checkResponseWithAssertion2(response);
  checkResponseWithAssertion3(response);
  checkResponseWithAssertion4(response);
}

我仅在期望/断言失败时才打印一些其他信息。

我知道我可以做这样的事情：

#define MY_ASSERT_EQ(lhr, rhs, message) if(lhs != rhs) ASSERT_EQ(lhs, rhs) …

我有以下场景:

class InterfaceA;
class InterfaceB;
class InterfaceC;


class InterfaceA
{
  virtual void foo(InterfaceC&) = 0;
};

class InterfaceB
{
  virtual void bar() = 0;
};

class InterfaceC
{
  virtual void bla() = 0;
};

// MOCKs

class MockA : public InterfaceA
{
  public:
    MOCK_METHOD0(foo, void(InterfaceC&));
};

class MockB : public InterfaceB
{
  public:
    MOCK_METHOD0(bar, void());
};


class ImplC : public InterfaceC
{
  public:
    ImplC(InterfaceA& a, Interface& b) : m_a(a), m_b(b) {}

    void doSomething() {
      m_a.foo(*this);
    }

    virtual void bla()
    { …

据我所知,should_receive仅适用于模拟对象.我想要检查,如果某个类(非对象)收到某个消息,如:

User.should_receive(:all).once

我怎么做？

UPD.通常,为模型和控制器编写测试,我们可以编写User.should_receive(:smth).once.但在我的情况下,我正在测试lib文件夹中的任意类,不知怎的,我总是收到以下消息:

<User( [fields] ) (class)> expected :all with (no args) once, but received it 0 times>

关于为什么会这样的任何想法？测试以某种方式查看User类,但无法检查它是否收到消息.当然,我已经十次检查发现该用户是实际获得的消息.

我正在尝试在测试中使用模拟对象.但是,当我尝试列出模拟对象的期望时,抛出相同的异常.
以下是异常的堆栈跟踪:

java.lang.SecurityException: class "org.hamcrest.TypeSafeMatcher"'s signer information does not match signer information of other classes in the same package
    at java.lang.ClassLoader.checkCerts(Unknown Source)
    at java.lang.ClassLoader.preDefineClass(Unknown Source)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$000(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(Unknown Source)
    at java.security.SecureClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.defineClass(Unknown Source)
    at java.net.URLClassLoader.access$000(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at …

考虑以下两个琐碎的模型:

class Iq

  def score
    #Some Irrelevant Code
  end

end

class Person

  def iq_score
    Iq.new(self).score   #error here
  end

end

以下Rspec测试:

describe "#iq_score" do

  let(:person) { Person.new }

  it "creates an instance of Iq with the person" do
    Iq.should_receive(:new).with(person)
    Iq.any_instance.stub(:score).and_return(100.0)
    person.iq_score
  end

end

当我运行此测试(或者更确切地说,类似的测试)时,看起来存根没有工作:

Failure/Error: person.iq_score
  NoMethodError:
    undefined method `iq_score' for nil:NilClass

正如您可能猜到的那样,失败在上面标记为"错误"的行上.当该should_receive行被注释掉时,此错误消失.这是怎么回事？

我Expectations在测试用例中编写的块有问题:

new Expectations() {
      {
        mFindHandlerMock.findAll((Model) any, (Set<Id>) any, false);
        if (!pWithRealData) {
          result = Collections.emptySet();
        } else {
          result = pAllData;
        }
        times = 1;

        Deencapsulation.invoke(mDb, "readSqlQuery", withAny(String.class));
        result = "select * from realdata";
        times = 1;
      }
    };

测试用例崩溃:

java.lang.IllegalArgumentException: Invalid conditional statement inside expectation block

正好在这里:

if (!pWithRealData) {

它只是一个简单的boolean就是false在这种情况下.

我绝对不知道为什么exception会发生这种情况.我已经用谷歌搜索过但没有找到任何帮助.

你可以帮帮我吗？

error:- expected ';' at the end of the declaration list

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
    float number;                   error:- expected ';' at the end of the declaration list
    float result;
    int currentoperation;
    __weak IBOutlet UILabel *label;
}

- (IBAction)canceloperation:(id)sender;
- (IBAction)cancelnumber:(id)sender;
- (IBAction)buttonoperation:(id)sender;
- (IBAction)buttonnumber:(id)sender;


@end

请修复此代码.