当一个函数被多次调用时，有没有办法在每次调用时都调用 AssertCalled

Question

我正在尝试使用 stretchr/testify 对如下代码进行单元测试：

func (c *MyClient) upsertData(data MyObject) {
    upsertToDatabase(data)
}

func doSomething(c *MyClient) {
    data1, data2 := getSomeData()
    c.upsertToDatabase(data1)
    c.upsertToDatabase(data2)
}

// Unit test.
func TestDoSomething(t *testing.T) {
    c := mock.MyClient{}
    doSomething(c)
    /* The following line checking for data1 upsert failed.
     * require.True(t, c.AssertCalled(t, "upsertToDatabase", mock.MatchedBy(func(data MyObject) bool { return data == MyObject{expectedObject1 /* data2 */}})) */
    require.True(t, c.AssertCalled(t, "upsertToDatabase", mock.MatchedBy(func(data MyObject) bool { return data == MyObject{expectedObject1 /* data2 */}}))
}

我想调用 AssertCalled 并验证 data1 和 data2 确实是用预期的函数调用的。但我只能断言函数的最后一次调用，即 data2。有什么办法或者我怎样才能用 data1 断言调用？

Answer 1

the docs中的例子：

/*
  Actual test functions
*/

// TestSomething is an example of how to use our test object to
// make assertions about some target code we are testing.
func TestSomething(t *testing.T) {

  // create an instance of our test object
  testObj := new(MyMockedObject)

  // setup expectations
  testObj.On("DoSomething", 123).Return(true, nil)

  // call the code we are testing
  targetFuncThatDoesSomethingWithObj(testObj)

  // assert that the expectations were met
  testObj.AssertExpectations(t)


}

看起来您可以调用 .On 任意次数来记录任意数量的 "called in this and this way" 期望。

我刚刚阅读了源代码，真的。打赌它会比在 SO 上发帖更快。

当一个函数被多次调用时，有没有办法在每次调用时都调用 AssertCalled

Is there a way to AssertCalled every call when a function is called multiple times

unit-testing

go

testify