fix(scheduler): schedule not added to group with unspecified name (#27927)

Closes #27885.

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: msambol

packages/@aws-cdk/aws-scheduler-alpha/lib/group.ts

@@ -1,7 +1,7 @@
 import * as cloudwatch from 'aws-cdk-lib/aws-cloudwatch';
 import * as iam from 'aws-cdk-lib/aws-iam';
 import { CfnScheduleGroup } from 'aws-cdk-lib/aws-scheduler';
-import { Arn, ArnFormat, Aws, IResource, PhysicalName, RemovalPolicy, Resource, Stack } from 'aws-cdk-lib/core';
+import { Arn, ArnFormat, Aws, IResource, Names, RemovalPolicy, Resource, Stack } from 'aws-cdk-lib/core';
 import { Construct } from 'constructs';
 
 export interface GroupProps {
@@ -338,21 +338,23 @@ export class Group extends GroupBase {
   public readonly groupArn: string;
 
   public constructor(scope: Construct, id: string, props: GroupProps) {
-    super(scope, id, {
-      physicalName: props.groupName ?? PhysicalName.GENERATE_IF_NEEDED,
+    super(scope, id);
+
+    this.groupName = props.groupName ?? Names.uniqueResourceName(this, {
+      maxLength: 64,
+      separator: '-',
     });
 
     const group = new CfnScheduleGroup(this, 'Resource', {
-      name: this.physicalName,
+      name: this.groupName,
     });
 
     group.applyRemovalPolicy(props.removalPolicy);
 
     this.groupArn = this.getResourceArnAttribute(group.attrArn, {
       service: 'scheduler',
       resource: 'schedule-group',
-      resourceName: this.physicalName,
+      resourceName: this.groupName,
     });
-    this.groupName = this.physicalName;
   }
-}
+}

packages/@aws-cdk/aws-scheduler-alpha/test/group.test.ts

@@ -136,6 +136,31 @@ describe('Schedule Group', () => {
     });
   });
 
+  test('adds schedules to the group with unspecified name', () => {
+    const group = new Group(stack, 'TestGroup', {});
+    const role = iam.Role.fromRoleArn(stack, 'ImportedRole', 'arn:aws:iam::123456789012:role/someRole');
+
+    const schedule1 = new Schedule(stack, 'MyScheduleDummy1', {
+      schedule: expr,
+      group: group,
+      target: new SomeLambdaTarget(func, role),
+    });
+    const schedule2 = new Schedule(stack, 'MyScheduleDummy2', {
+      schedule: expr,
+      group: group,
+      target: new SomeLambdaTarget(func, role),
+    });
+
+    expect(schedule1.group).toEqual(group);
+    expect(schedule2.group).toEqual(group);
+
+    Template.fromStack(stack).hasResource('AWS::Scheduler::Schedule', {
+      Properties: {
+        GroupName: group.groupName,
+      },
+    });
+  });
+
   test('grantReadSchedules', () => {
     // GIVEN
     const props: GroupProps = {
@@ -285,4 +310,4 @@ describe('Schedule Group', () => {
       Namespace: 'AWS/Scheduler',
     });
   });
-});
+});

packages/@aws-cdk/aws-scheduler-alpha/test/integ.schedule.js.snapshot/aws-cdk-scheduler-schedule.assets.json

@@ -98,6 +98,22 @@
     ]
    }
   },
+  "NamedGroupA3ABC879": {
+   "Type": "AWS::Scheduler::ScheduleGroup",
+   "Properties": {
+    "Name": "TestGroup"
+   },
+   "UpdateReplacePolicy": "Retain",
+   "DeletionPolicy": "Retain"
+  },
+  "UnnamedGroupBE3E48EE": {
+   "Type": "AWS::Scheduler::ScheduleGroup",
+   "Properties": {
+    "Name": "awscdkschedulerschedule-UnnamedGroup-97DBE50D"
+   },
+   "UpdateReplacePolicy": "Retain",
+   "DeletionPolicy": "Retain"
+  },
   "DefaultSchedule597B0B2C": {
    "Type": "AWS::Scheduler::Schedule",
    "Properties": {
@@ -128,6 +144,68 @@
     }
    }
   },
+  "NamedGroupScheduleD7EEFEBC": {
+   "Type": "AWS::Scheduler::Schedule",
+   "Properties": {
+    "FlexibleTimeWindow": {
+     "Mode": "OFF"
+    },
+    "GroupName": "TestGroup",
+    "ScheduleExpression": "rate(12 hours)",
+    "ScheduleExpressionTimezone": "Etc/UTC",
+    "State": "ENABLED",
+    "Target": {
+     "Arn": {
+      "Fn::GetAtt": [
+       "Function76856677",
+       "Arn"
+      ]
+     },
+     "Input": "\"Input Text\"",
+     "RetryPolicy": {
+      "MaximumEventAgeInSeconds": 180,
+      "MaximumRetryAttempts": 3
+     },
+     "RoleArn": {
+      "Fn::GetAtt": [
+       "Role1ABCC5F0",
+       "Arn"
+      ]
+     }
+    }
+   }
+  },
+  "UnnamedGroupSchedule19260E9B": {
+   "Type": "AWS::Scheduler::Schedule",
+   "Properties": {
+    "FlexibleTimeWindow": {
+     "Mode": "OFF"
+    },
+    "GroupName": "awscdkschedulerschedule-UnnamedGroup-97DBE50D",
+    "ScheduleExpression": "rate(12 hours)",
+    "ScheduleExpressionTimezone": "Etc/UTC",
+    "State": "ENABLED",
+    "Target": {
+     "Arn": {
+      "Fn::GetAtt": [
+       "Function76856677",
+       "Arn"
+      ]
+     },
+     "Input": "\"Input Text\"",
+     "RetryPolicy": {
+      "MaximumEventAgeInSeconds": 180,
+      "MaximumRetryAttempts": 3
+     },
+     "RoleArn": {
+      "Fn::GetAtt": [
+       "Role1ABCC5F0",
+       "Arn"
+      ]
+     }
+    }
+   }
+  },
   "DisabledScheduleA1DF7F0F": {
    "Type": "AWS::Scheduler::Schedule",
    "Properties": {