We have one trigger in org on sobject type Delete Content Document. I am not sure what is this object and how to create its record in test class.I am not able to write test class for it.

Please find below code of trigger:
trigger DeleteContentDocumentTrigger on Delete_Content_Document__e (after insert) {
    List<ContentDocument> contentDocumentList = new List<ContentDocument>();
    List<Attachment> attachmentList = new List<Attachment>();
    List<eLicense_Attachment__c> eLicenseAttachmentList = new List<eLicense_Attachment__c>();
       
    for (Delete_Content_Document__e event : Trigger.New) {
        if (event.Content_Document_Id__c != null) {
            contentDocumentList.add(new ContentDocument(id = event.Content_Document_Id__c));
        }
        if (event.Attachment_Id__c != null) {
            attachmentList.add(new Attachment(id = event.Attachment_Id__c));
        }
        if (event.eLicense_Attachment_Id__c != null) {
            eLicenseAttachmentList.add(new eLicense_Attachment__c(id = event.eLicense_Attachment_Id__c));
        }
   }
    
    delete contentDocumentList;
    delete attachmentList;
    delete eLicenseAttachmentList;
}

Please find below test class:
@isTest
public class DeleteContentDocumentTriggerTest {
    
    public static testmethod void test_contentDoc(){
        Test.startTest();
          //try{
    Global_Settings__c globalSettings = new Global_Settings__c(Name = 'Default', Disable_Triggers__c = true);
        if(globalSettings != null) insert globalSettings;
        Account acc = OH_Utility_UnitTestData.createTestAccount();
        insert acc;
        Blob beforeblob=Blob.valueOf('Unit Test Attachment Body');

        ContentVersion cv = new ContentVersion();
        cv.title = 'test content trigger';      
        cv.PathOnClient ='test';           
        cv.VersionData =beforeblob;          
        insert cv;             
                                                
         List<ContentDocument> documents = [SELECT Id, Title, LatestPublishedVersionId FROM ContentDocument];

        ContentDocumentLink contentlink=new ContentDocumentLink();
        contentlink.LinkedEntityId=acc.id;
        contentlink.ShareType= 'V';
        contentlink.ContentDocumentId=documents[0].Id;
        contentlink.Visibility = 'AllUsers'; 
        insert contentlink;
    
      
         delete documents;
        
         delete contentlink;
         Delete_Content_Document__e dc = new Delete_Content_Document__e();
       // EventBus.publish(dc);
            
        //}
        //catch(Exception e){}
        Test.stopTest();
    //insert dc;
    }

}
It is not covering trigger at all.