如何测试 Salesforce Prod 部署的 contentdocumentlink 触发器

Question

我正在尝试部署一个触发器来刺激销售人员。我希望有人可以帮助我提供一个测试这个触发器的例子。

这是我的触发器。它的目的是在新的 contentNote（或任何内容类型）通过流程构建器产生附带影响时更新 bool 字段。

trigger NewNote on ContentDocumentLink (before insert) {
Set<Id> setParentId = new Set<Id>();
List<Client_Relationships__c> crlst = new List<Client_Relationships__c>();

for (ContentDocumentLink cdl : trigger.new ) {
    setParentId.add(cdl.LinkedEntityId);
    }
crlst = [select Id , newNote__c from Client_Relationships__c where Id IN :setParentId];
For(Client_Relationships__c e : crlst)
 {
    e.newNote__c = True;
 }
 update crlst;
} 

Answer 1

您编写的触发器可以通过省略 SOQL 查询来提高效率，如下所示：

trigger NewNote on ContentDocumentLink (before insert) {
   List<Client_Relationships__c> crlst = new List<Client_Relationships__c>();

   for (ContentDocumentLink cdl : trigger.new ) {
      if(cdl.LinkedEntityId.getSObjectType().getDescribe().getName() == 'Client_Relationships__c'){
         crlst.add(
            new Client_Relationships__c(
               Id = cdl.LinkedEntityId,
               newNote__c = true
            )
         );
      }
   }
   update crlst;
} 

最佳做法是将您的代码添加到处理程序或实用程序类中，并且每个对象只有一个触发器。如果您采用这种做法，此触发器的名称可以更改为“ContentDocumentLinkTrigger”。

该触发器的测试类如下。我无法测试编译，因为我没有相同的自定义对象。

@IsTest
private class ContentDocumentLinkTriggerTest {

    @TestSetup
    static void setupTest() {
        insert new ContentVersion(
                Title = 'Test_Document.txt',
                VersionData = Blob.valueOf('This is my file body.'),
                SharingPrivacy  = 'N',
                SharingOption   = 'A',
                Origin          = 'H',
                PathOnClient    = '/Test_Document.txt'
        );
        List<Client_Relationships__c> relationships = new List<Client_Relationships__c>();
        for(Integer i = 0; i < 300; i++){
            relationships.add(
                    new Client_Relationships__c(
                            //add required field names and values
                    )
            );
        }
        insert relationships;
    }

    static testMethod void testInsertTrigger() {
        //prepare data
        List<ContentVersion> contentVersions = new List<ContentVersion>([
                SELECT Id, ContentDocumentId FROM ContentVersion
        ]);
        System.assertNotEquals(0, contentVersions.size(), 'ContentVersion records should have been retrieved');
        List<Client_Relationships__c> relationships = getAllClientRelationships();
        System.assertNotEquals(0, relationships.size(), 'Client Relationship records should have been retrieved.');
        List<ContentDocumentLink> documentLinks = new List<ContentDocumentLink>();
        for(Integer i = 0; i < 252; i++){
            documentLinks.add(
                    new ContentDocumentLink(
                            ContentDocumentId = contentVersions[0].ContentDocumentId,
                            LinkedEntityId = relationships[i].Id,
                            ShareType = 'I'
                    )
            );
        }
        //test functionality
        Test.startTest();
            insert documentLinks;
        Test.stopTest();

        //assert expected results
        List<Client_Relationships__c> relationshipsAfterProcessing = getAllClientRelationships();
        for(Client_Relationships__c relationship : relationshipsAfterProcessing){
            System.assert(relationship.newNote__c, 'The newNote__c field value should be true.');
        }
    }

    private static List<Client_Relationships__c> getAllClientRelationships(){
        return new List<Client_Relationships__c>([
                SELECT Id, newNote__c FROM Client_Relationship__c
        ]);
    }
}

对于设置测试数据，有一个实用程序类来集中创建格式良好的记录会很有帮助。当您的代码库变得很大并且验证规则会影响在许多测试类中插入新数据时，这非常有用。使用集中式方法，插入的数据只需更改一次。