test(stacks.api): add test suite for cache stack

Signed-off-by: Braden Mars <bradenmars@bradenmars.me>

packages/stacks/api/test/cache-stack.spec.ts

@@ -0,0 +1,46 @@
+import { App, Stack } from 'aws-cdk-lib'
+import { Template } from 'aws-cdk-lib/assertions'
+import { Vpc } from 'aws-cdk-lib/aws-ec2'
+import { vi, expect, test, describe, beforeEach } from 'vitest'
+import { cacheConfigSchema } from '../src'
+import { CacheStack, type CacheProps } from '../src/stacks'
+
+interface TestContext {
+	app: App
+	vpc: Vpc
+}
+
+describe('CacheStack', () => {
+	beforeEach<TestContext>((ctx) => {
+		ctx.app = new App()
+		const vpcStack = new Stack(ctx.app, 'test-vpc')
+		ctx.vpc = new Vpc(vpcStack, 'test-vpc')
+	})
+
+	test<TestContext>('renders expected template with defaults', (ctx) => {
+		const cacheProps = cacheConfigSchema.parse({
+			enabled: true,
+		})
+		const stack = new CacheStack(ctx.app, 'test-cache', {
+			vpc: ctx.vpc,
+			...cacheProps,
+		})
+		const template = Template.fromStack(stack)
+		expect(template.toJSON()).toMatchSnapshot()
+	})
+
+	test<TestContext>('renders expected template with cluster mode', (ctx) => {
+		const cacheProps = cacheConfigSchema.parse({
+			enabled: true,
+			clusterMode: true,
+			replicas: 3,
+			memoryAutoscalingTarget: 60,
+		})
+		const stack = new CacheStack(ctx.app, 'test-cache', {
+			vpc: ctx.vpc,
+			...cacheProps,
+		})
+		const template = Template.fromStack(stack)
+		expect(template.toJSON()).toMatchSnapshot()
+	})
+})