Go-利用Redis和Golang实现分布式令牌桶算法

Testify - Thou Shalt Write Tests ================================ [](https://travis-ci.org/stretchr/testify) [](https://goreportcard.com/report/github.com/stretchr/testify) [](https://godoc.org/github.com/stretchr/testify) Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend. Features include: * [Easy assertions](#assert-package) * [Mocking](#mock-package) * [HTTP response trapping](#http-package) * [Testing suite interfaces and functions](#suite-package) Get started: * Install testify with [one line of code](#installation), or [update it with another](#staying-up-to-date) * For an introduction to writing test code in Go, see http://golang.org/doc/code.html#Testing * Check out the API Documentation http://godoc.org/github.com/stretchr/testify * To make your testing life easier, check out our other project, [gorc](http://github.com/stretchr/gorc) * A little about [Test-Driven Development (TDD)](http://en.wikipedia.org/wiki/Test-driven_development) [`assert`](http://godoc.org/github.com/stretchr/testify/assert "API documentation") package ------------------------------------------------------------------------------------------- The `assert` package provides some helpful methods that allow you to write better test code in Go. * Prints friendly, easy to read failure descriptions * Allows for very readable code * Optionally annotate each assertion with a message See it in action: ```go package yours import ( "testing" "github.com/stretchr/testify/assert" ) func TestSomething(t *testing.T) { // assert equality assert.Equal(t, 123, 123, "they should be equal") // assert inequality assert.NotEqual(t, 123, 456, "they should not be equal") // assert for nil (good for errors) assert.Nil(t, object) // assert for not nil (good when you expect something) if assert.NotNil(t, object) { // now we know that object isn't nil, we are safe to make // further assertions without causing any errors assert.Equal(t, "Something", object.Value) } } ``` * Every assert func takes the `testing.T` object as the first argument. This is how it writes the errors out through the normal `go test` capabilities. * Every assert func returns a bool indicating whether the assertion was successful or not, this is useful for if you want to go on making further assertions under certain conditions. if you assert many times, use the below: ```go package yours import ( "testing" "github.com/stretchr/testify/assert" ) func TestSomething(t *testing.T) { assert := assert.New(t) // assert equality assert.Equal(123, 123, "they should be equal") // assert inequality assert.NotEqual(123, 456, "they should not be equal") // assert for nil (good for errors) assert.Nil(object) // assert for not nil (good when you expect something) if assert.NotNil(object) { // now we know that object isn't nil, we are safe to make // further assertions without causing any errors assert.Equal("Something", object.Value) } } ``` [`require`](http://godoc.org/github.com/stretchr/testify/require "API documentation") package --------------------------------------------------------------------------------------------- The `require` package provides same global functions as the `assert` package, but instead of returning a boolean result they terminate current test. See [t.FailNow](http://golang.org/pkg/testing/#T.FailNow) for details. [`http`](http://godoc.org/github.com/stretchr/testify/http "API documentation") package --------------------------------------------------------------------------------------- The `http` package contains test objects useful for testing code that relies on the `net/http` package. Check out the [(deprecated) API documentation for the `http` package](http://godoc.org/github.com/stretchr/testify/http). We recommend you use [httptest](http://golang.org/pkg/net/http/httptest) instead. [`mock`](http://godoc.org/github.com/stretchr/testify/mock "API documentation") package ---------------------------------------------------------------------------------------- The `mock` package provides a mechanism for easily writing mock objects that can be used in place of real objects when writing test code. An example test function that tests a piece of code that relies on an external object `testObj`, can setup expectations (testify) and assert that they indeed happened: ```go package yours import ( "testing" "github.com/stretchr/testify/mock" ) /* Test objects */ // MyMockedObject is a mocked object that implements an interface // that describes an object that the code I am testing relies on. type MyMockedObject struct{ mock.Mock } // DoSomething is a method on MyMockedObject that implements some interface // and just records the activity, and returns what the Mock object tells it to. // // In the real object, this method would do something useful, but since this // is a mocked object - we're just going to stub it out. // // NOTE: This method is not being tested here, code that uses this object is. func (m *MyMockedObject) DoSomething(number int) (bool, error) { args := m.Called(number) return args.Bool(0), args.Error(1) } /* 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) } ``` For more information on how to write mock code, check out the [API documentation for the `mock` package](http://godoc.org/github.com/stretchr/testify/mock). You can use the [mockery tool](http://github.com/vektra/mockery) to autogenerate the mock code against an interface as well, making using mocks much quicker. [`suite`](http://godoc.org/github.com/stretchr/testify/suite "API documentation") package ----------------------------------------------------------------------------------------- The `suite` package provides functionality that you might be used to from more common object oriented languages. With it, you can build a testing suite as a struct, build setup/teardown methods and testing methods on your struct, and run them with 'go test' as per normal. An example suite is shown below: ```go // Basic imports import ( "testing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/suite" ) // Define the suite, and absorb the built-in basic suite // functionality from testify - including a T() method which // returns the current testing context type ExampleTestSuite struct { suite.Suite VariableThatShouldStartAtFive int } // Make sure that VariableThatShouldStartAtFive is set to five // before each test func (suite *ExampleTestSuite) SetupTest() { suite.VariableThatShouldStartAtFive = 5 } // All methods that begin with "Test" are run as tests within a // suite. func (suite *ExampleTestSuite) TestExample() { assert.Equal(suite.T(), 5, suite.VariableThatShouldStartAtFive) } // In order for 'go test' to run this suite, we need to create // a normal test function and pass our suite to suite.Run func TestExampleTestSuite(t *testing.T) { suite.Run(t, new(ExampleTestSuite)) } ``` For a more complete example, using all of the functionality provided by the suite package, look at our [example testing suite](https://github.com/stretchr/testify/blob/master/suite/suite_test.go) For more information on writing suites, check out the [API documen