test: add event source unit tests

test/workload/stateful/eventSourceConstruct.test.ts

@@ -0,0 +1,77 @@
+import * as cdk from 'aws-cdk-lib';
+import { Template } from 'aws-cdk-lib/assertions';
+import { EventSource } from '../../../lib/workload/stateful/event_source/component';
+
+let stack: cdk.Stack;
+
+function assert_common(template: Template) {
+  template.resourceCountIs('AWS::SQS::Queue', 2);
+
+  template.hasResourceProperties('AWS::CloudWatch::Alarm', {
+    ComparisonOperator: 'GreaterThanThreshold',
+    EvaluationPeriods: 1,
+    Threshold: 0,
+  });
+
+  template.hasResourceProperties('AWS::Events::Rule', {
+    EventPattern: {
+      source: ['aws.s3'],
+      detail: {
+        bucket: {
+          name: ['bucket'],
+        },
+      },
+    },
+  });
+}
+
+beforeEach(() => {
+  stack = new cdk.Stack();
+});
+
+test('Test EventSource created props', () => {
+  new EventSource(stack, 'TestDatabaseConstruct', {
+    buckets: ['bucket'],
+  });
+  const template = Template.fromStack(stack);
+
+  assert_common(template);
+});
+
+test('Test EventSource created props with event types', () => {
+  new EventSource(stack, 'TestDatabaseConstruct', {
+    buckets: ['bucket'],
+    eventTypes: ['Object Created'],
+  });
+  const template = Template.fromStack(stack);
+
+  assert_common(template);
+  template.hasResourceProperties('AWS::Events::Rule', {
+    EventPattern: {
+      'detail-type': ['Object Created'],
+    },
+  });
+});
+
+test('Test EventSource created props with prefix', () => {
+  new EventSource(stack, 'TestDatabaseConstruct', {
+    buckets: ['bucket'],
+    prefix: 'prefix',
+  });
+  const template = Template.fromStack(stack);
+
+  assert_common(template);
+  template.hasResourceProperties('AWS::Events::Rule', {
+    EventPattern: {
+      detail: {
+        object: {
+          key: [
+            {
+              prefix: 'prefix',
+            },
+          ],
+        },
+      },
+    },
+  });
+});