From c51ce76ee9ccd64760157d2dde8158462dd7420b Mon Sep 17 00:00:00 2001
From: Berislav Kovacki <kovacki.berislav@gmail.com>
Date: Tue, 9 Jul 2019 02:10:33 +0200
Subject: [PATCH] Add InstanceCreateTime to DBInstance

---
 moto/rds2/models.py          | 4 +++-
 tests/test_rds2/test_rds2.py | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/moto/rds2/models.py b/moto/rds2/models.py
index fee004f76..498f9b126 100644
--- a/moto/rds2/models.py
+++ b/moto/rds2/models.py
@@ -70,6 +70,7 @@ class Database(BaseModel):
             self.port = Database.default_port(self.engine)
         self.db_instance_identifier = kwargs.get('db_instance_identifier')
         self.db_name = kwargs.get("db_name")
+        self.instance_create_time = iso_8601_datetime_with_milliseconds(datetime.datetime.now())
         self.publicly_accessible = kwargs.get("publicly_accessible")
         if self.publicly_accessible is None:
             self.publicly_accessible = True
@@ -148,6 +149,7 @@ class Database(BaseModel):
               <VpcSecurityGroups/>
               <DBInstanceIdentifier>{{ database.db_instance_identifier }}</DBInstanceIdentifier>
               <DbiResourceId>{{ database.dbi_resource_id }}</DbiResourceId>
+              <InstanceCreateTime>{{ database.instance_create_time }}</InstanceCreateTime>
               <PreferredBackupWindow>03:50-04:20</PreferredBackupWindow>
               <PreferredMaintenanceWindow>wed:06:38-wed:07:08</PreferredMaintenanceWindow>
               <ReadReplicaDBInstanceIdentifiers>
@@ -373,7 +375,7 @@ class Database(BaseModel):
             "Address": "{{ database.address }}",
             "Port": "{{ database.port }}"
         },
-        "InstanceCreateTime": null,
+        "InstanceCreateTime": "{{ database.instance_create_time }}",
         "Iops": null,
         "ReadReplicaDBInstanceIdentifiers": [{%- for replica in database.replicas -%}
             {%- if not loop.first -%},{%- endif -%}
diff --git a/tests/test_rds2/test_rds2.py b/tests/test_rds2/test_rds2.py
index a25b53196..cf5c9a906 100644
--- a/tests/test_rds2/test_rds2.py
+++ b/tests/test_rds2/test_rds2.py
@@ -34,6 +34,7 @@ def test_create_database():
     db_instance['IAMDatabaseAuthenticationEnabled'].should.equal(False)
     db_instance['DbiResourceId'].should.contain("db-")
     db_instance['CopyTagsToSnapshot'].should.equal(False)
+    db_instance['InstanceCreateTime'].should.be.a("datetime.datetime")
 
 
 @mock_rds2