---
AWSTemplateFormatVersion: '2010-09-09'
Parameters:
  snapshotid:
    Type: String
Conditions:
  snapshot: !Not [!Equals [!Ref snapshotid, ""]]
Resources:
  # Doesnt check if conditions are used
  DBInstance1:
    Type: AWS::RDS::DBInstance
    Properties:
      DBInstanceClass: db.m4.xlarge
      Engine: !If [snapshot, !Ref snapshotid, aurora-mysql ]
  # Doesnt fail on valid instance type
  DBInstance2:
    Type: AWS::RDS::DBInstance
    Properties:
      DBInstanceClass: db.r4.xlarge
      Engine: aurora-mysql
  # Doesnt fail on valid instance type with license
  DBInstance3:
    Type: AWS::RDS::DBInstance
    Properties:
      DBInstanceClass: db.x1e.xlarge
      Engine: oracle-se2
      LicenseModel: bring-your-own-license
  # Doesnt fail on valid instance type with license
  DBInstance4:
    Type: AWS::RDS::DBInstance
    Properties:
      DBInstanceClass: db.r4.large
      Engine: oracle-se2
      LicenseModel: license-included
  # Doesnt fail on no license when default is license-included
  DBInstance5:
    Type: AWS::RDS::DBInstance
    Properties:
      DBInstanceClass: db.t2.small
      Engine: sqlserver-ex
  # Doesnt fail on no license when default is bring-your-own-license
  DBInstance6:
    Type: AWS::RDS::DBInstance
    Properties:
      DBInstanceClass: db.m3.medium
      Engine: oracle-ee