如何测试用于Salesforce Prod部署的contentdocumentlink触发器

Question

我正在尝试部署触发器以在Salesforce上进行生产。我希望有人可以帮助我举例说明此触发器。

这是我的触发器。它的目的是，在新的contentNote（或任何内容类型）通过流程生成器产生附带影响时，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;
} 

最佳实践是将代码添加到处理程序或实用程序类，并且每个对象只有一个触发器。如果您采用这种做法，则可以将该触发器的名称更改为“ ContentDocumentLinkTrigger”。

该触发器的测试类别如下。我没有相同的自定义对象，因此无法测试编译。

@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，拥有一个实用程序类来集中创建格式正确的记录会很有帮助。当您的代码库变大并且验证规则影响许多测试类中新数据的插入时，这非常有用。使用集中式方法，插入的数据只需更改一次。