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This article mainly introduces how to use the test pile in the spock framework, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Use the scene when:int a = 12 int b = xxxService.squre (a); int c = xxxService.plus (a, b); then:c = = 100

If we need to test the above code, but are told that the squre method has not been developed yet, or is in the process of being modified, we cannot get the correct results using it now.

At this point, you can use the test pile: create one or more false return values for the squre () method, so that we can test the later plus () method normally.

The specific explanation of the test pile Stub and Mock is explained in the following code comments.

Using the instance package com.yawn.spockimport com.yawn.spock.service.CalculateInterfaceimport com.yawn.spock.service.CalculateServiceimport spock.lang.Specification/** Stub has something in common with Mock * (1) * both Stub and Mock objects are used to simulate external dependencies so that we can control them. * if the program, system or object under test, we call it A. In the process of testing A, * A needs to interact with program, system, or object B, so Stub/Mock is used to simulate the behavior of B to interact with A. * (2) the difference * Stub, that is, "pile", has been said for a long time, mainly in the process of integration testing, * when integrating from top to bottom, as a substitute for the program below. The function, like its name, is to be able to find it when needed. It's like a roll call, "here". * Mock, which mainly refers to the puppet of a program, that is, a fake program, * can respond according to the wishes of the tester and return the information needed by the tested object. * that is, you want the wind to get the wind, the rain to get the rain, and the value you want to return. * * in general, stub completely simulates an external dependency to provide the test data needed for testing. * the mock object is used to determine whether the test can pass, that is, to verify that the interaction between dependent objects in the test is as expected. * * @ author yawn * 14:52 on 2019-6-10 * / class MockSpec extends Specification {def "mock Test pile" () {given: "Construction Test pile" CalculateInterface calculateService = Stub (CalculateInterface) calculateService.plusPlus (_) > > 1 when: int x = calculateService.plusPlus (12) int y = calculateService.plusPlus (3) then: X = = 1 Y = = 1} def "mock test pile gets different values" () {given: "Construction test pile" CalculateService calculateService = Stub (CalculateService) calculateService.plusPlus (_) > [1 2, 3] when: int x = calculateService.plusPlus (12) int y = calculateService.plusPlus (3) int z = calculateService.plusPlus (2) then: X = = 1 y = = 2 z = = 3}}

The corresponding zombie instance can be obtained by using the Stub and Mock methods, and we can define the return value of its method for this zombie instance.

CalculateService.plusPlus (_) > > 1 / / defines a return value

CalculateService.plusPlus (_) > [1,2,3] / / defines multiple return values, one of which is taken as the return value in sequence for each execution.

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