如何在模拟域的grails单元测试中测试默认排序

据我所知,在单元测试中没有任何好的方法来测试实际的排序。您尝试测试的内容实际上是GORM集成的一个组成部分,在模拟的域对象上测试它,即使它们支持排序映射,也不会测试将要运行的实际代码。

在单元测试中,您可以做的最接近的事情是查看静态映射对象,以断言“sort”的值设置为您期望的值。

我把一个 blog post

Foo域对象:

package com.example

class Foo {

    String name

    static mapping = {
           sort "name"
    }
}

FooTests单元测试:

package com.example

import grails.test.*

class FooTests extends GrailsUnitTestCase {
    void testFooSort() {
         def mappingValues = ClosureInterrogator.extractValuesFromClosure(Foo.mapping)
         assertEquals "name", mappingValues.sort
    }
}

ClosureInterrogator类,允许您查看闭包的作用:

package com.example

class ClosureInterrogator {
    private Map closureValueMap = [:]

    static Map extractValuesFromClosure(Closure closure) {
        def interrogator = new ClosureInterrogator(closure)
        return interrogator.closureValueMap
    }

    private ClosureInterrogator(Closure closure) {
        def oldResolveStrategy = closure.getResolveStrategy()
        def oldDelegate = closure.getDelegate()
        closure.delegate = this
        closure.resolveStrategy = Closure.DELEGATE_FIRST

        try {
            closure()
        } finally {        
            closure.setDelegate(oldDelegate)
            closure.setResolveStrategy(oldResolveStrategy)
        }
    }

    // property getter
    def propertyMissing(String name) {
        return closureValueMap[name]
    }

    // property setter
    def propertyMissing(String name, value) {
        closureValueMap[name] = value
    }

    def methodMissing(String name, args) {
        if (args.size() == 1) {
            closureValueMap[name] = args[0]
        } else {
            closureValueMap[name] = args
        }
    }
}