如何在grails测试中填充有效的params

Question

groovy和grails中的一个新功能。我试着运行grails install-templates，看到了生成的test.groovy，它看起来像这样。。。

`<%=packageName ? "package ${packageName}nn" : ''%>
import org.junit.*
import grails.test.mixin.*
@TestFor(${className}Controller)
@Mock(${className})
class ${className}ControllerTests {

    def populateValidParams(params) {
      assert params != null
      // TODO: Populate valid properties like...
      //params["name"] = 'someValidName'
    }
    void testIndex() {
        controller.index()
        assert "/$propertyName/list" == response.redirectedUrl
    }
    void testList() {
        def model = controller.list()
        assert model.${propertyName}InstanceList.size() == 0
        assert model.${propertyName}InstanceTotal == 0
    }
    void testCreate() {
       def model = controller.create()
       assert model.${propertyName}Instance != null
    }
    void testSave() {
        controller.save()
        assert model.${propertyName}Instance != null
        assert view == '/${propertyName}/create'
        response.reset()
        populateValidParams(params)
        controller.save()
        assert response.redirectedUrl == '/${propertyName}/show/1'
        assert controller.flash.message != null
        assert ${className}.count() == 1
    }
    void testShow() {
        controller.show()
        assert flash.message != null
        assert response.redirectedUrl == '/${propertyName}/list'

        populateValidParams(params)
        def ${propertyName} = new ${className}(params)
        assert ${propertyName}.save() != null
        params.id = ${propertyName}.id
        def model = controller.show()
        assert model.${propertyName}Instance == ${propertyName}
    }
    void testEdit() {
        controller.edit()
        assert flash.message != null
        assert response.redirectedUrl == '/${propertyName}/list'

        populateValidParams(params)
        def ${propertyName} = new ${className}(params)
        assert ${propertyName}.save() != null
        params.id = ${propertyName}.id
        def model = controller.edit()
        assert model.${propertyName}Instance == ${propertyName}
    }
    void testUpdate() {
        controller.update()
        assert flash.message != null
        assert response.redirectedUrl == '/${propertyName}/list'
        response.reset()

        populateValidParams(params)
        def ${propertyName} = new ${className}(params)
        assert ${propertyName}.save() != null
        // test invalid parameters in update
        params.id = ${propertyName}.id
        //TODO: add invalid values to params object
        controller.update()
        assert view == "/${propertyName}/edit"
        assert model.${propertyName}Instance != null
        ${propertyName}.clearErrors()
        populateValidParams(params)
        controller.update()
        assert response.redirectedUrl == "/${propertyName}/show/$${propertyName}.id"
        assert flash.message != null
        //test outdated version number
        response.reset()
        ${propertyName}.clearErrors()
        populateValidParams(params)
        params.id = ${propertyName}.id
        params.version = -1
        controller.update()
        assert view == "/${propertyName}/edit"
        assert model.${propertyName}Instance != null
        assert model.${propertyName}Instance.errors.getFieldError('version')
        assert flash.message != null
    }
    void testDelete() {
        controller.delete()
        assert flash.message != null
        assert response.redirectedUrl == '/${propertyName}/list'
        response.reset()
        populateValidParams(params)
        def ${propertyName} = new ${className}(params)
        assert ${propertyName}.save() != null
        assert ${className}.count() == 1
        params.id = ${propertyName}.id
        controller.delete()
        assert ${className}.count() == 0
        assert ${className}.get(${propertyName}.id) == null
        assert response.redirectedUrl == '/${propertyName}/list'
    }
}`

因此，我将其复制到适当的控制器测试中，并将所有的$｛propertyName｝和$｛className｝更改为这样。testIndex（）testList（）和testCreate（）已通过，但testSave（）、testUpdate（）、testDelete（）和testEdit（）失败。我想我需要填写这部分：

def populateValidParams(params) {
      assert params != null
      // TODO: Populate valid properties like...
      //params["name"] = 'someValidName'
    }

所以我做了，方法看起来像这样：

def populateValidParams(params) {
  assert params != null
  // TODO: Populate valid properties like...
  //params["name"] = 'someValidName'
  params["company"] = 'someCompany'
  params["position"] = 'somePosition'
  params["responsibilities"] = 'someResponsibility'
  params["startDate"] = new Date ('2007/01/01')
  params["endDate"] = new Date ('2010/01/01')
}

但是测试仍然失败。。我做错什么了吗？我想我对那些情人做得不对。。我有点不熟悉那种时髦的类型。。这是保存的堆栈

    junit.framework.AssertionFailedError: Assertion failed: 
assert response.redirectedUrl == '/employmentHistory/show/1'
       |        |             |
       |        null          false
       org.codehaus.groovy.grails.plugins.testing.GrailsMockHttpServletResponse@737611
    at com.someapp.controller.EmploymentHistoryControllerTests.testSave(EmploymentHistoryControllerTests.groovy:63)

展示：

    junit.framework.AssertionFailedError: Assertion failed: 
assert employmentHistory.save() != null
       |                 |      |
       |                 null   false
       com.someapp.domain.EmploymentHistory : null
    at com.someapp.controller.EmploymentHistoryControllerTests.testShow(EmploymentHistoryControllerTests.groovy:78)

编辑：

    junit.framework.AssertionFailedError: Assertion failed: 
assert employmentHistory.save() != null
       |                 |      |
       |                 null   false
       com.someapp.domain.EmploymentHistory : null
    at com.someapp.controller.EmploymentHistoryControllerTests.testEdit(EmploymentHistoryControllerTests.groovy:97)

Answer 1

assert employmentHistory.save() != null的失败表示您的EmploymentHistory域对象未进行验证。确保您的参数满足您为EmploymentHistory声明的所有约束。