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| 1 | +import { StackMetadataBackendOutputStorageStrategy } from '@aws-amplify/backend-output-storage'; |
| 2 | +import { |
| 3 | + ConstructContainerStub, |
| 4 | + ResourceNameValidatorStub, |
| 5 | + StackResolverStub, |
| 6 | +} from '@aws-amplify/backend-platform-test-stubs'; |
| 7 | +import { AmplifyUserError } from '@aws-amplify/platform-core'; |
| 8 | +import { |
| 9 | + ConstructFactoryGetInstanceProps, |
| 10 | + ResourceNameValidator, |
| 11 | +} from '@aws-amplify/plugin-types'; |
| 12 | +import { App, Stack } from 'aws-cdk-lib'; |
| 13 | +import { Template } from 'aws-cdk-lib/assertions'; |
| 14 | +import assert from 'node:assert'; |
| 15 | +import { beforeEach, describe, it } from 'node:test'; |
| 16 | +import { defineFunction } from './factory.js'; |
| 17 | + |
| 18 | +const createStackAndSetContext = (): Stack => { |
| 19 | + const app = new App(); |
| 20 | + app.node.setContext('amplify-backend-name', 'testEnvName'); |
| 21 | + app.node.setContext('amplify-backend-namespace', 'testBackendId'); |
| 22 | + app.node.setContext('amplify-backend-type', 'branch'); |
| 23 | + const stack = new Stack(app); |
| 24 | + return stack; |
| 25 | +}; |
| 26 | + |
| 27 | +void describe('AmplifyFunctionFactory - Layers', () => { |
| 28 | + let rootStack: Stack; |
| 29 | + let getInstanceProps: ConstructFactoryGetInstanceProps; |
| 30 | + let resourceNameValidator: ResourceNameValidator; |
| 31 | + |
| 32 | + beforeEach(() => { |
| 33 | + rootStack = createStackAndSetContext(); |
| 34 | + |
| 35 | + const constructContainer = new ConstructContainerStub( |
| 36 | + new StackResolverStub(rootStack) |
| 37 | + ); |
| 38 | + |
| 39 | + const outputStorageStrategy = new StackMetadataBackendOutputStorageStrategy( |
| 40 | + rootStack |
| 41 | + ); |
| 42 | + |
| 43 | + resourceNameValidator = new ResourceNameValidatorStub(); |
| 44 | + |
| 45 | + getInstanceProps = { |
| 46 | + constructContainer, |
| 47 | + outputStorageStrategy, |
| 48 | + resourceNameValidator, |
| 49 | + }; |
| 50 | + }); |
| 51 | + |
| 52 | + void it('sets a valid layer', () => { |
| 53 | + const layerArn = 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer:1'; |
| 54 | + const functionFactory = defineFunction({ |
| 55 | + entry: './test-assets/default-lambda/handler.ts', |
| 56 | + name: 'lambdaWithLayer', |
| 57 | + layers: { |
| 58 | + myLayer: layerArn, |
| 59 | + }, |
| 60 | + }); |
| 61 | + const lambda = functionFactory.getInstance(getInstanceProps); |
| 62 | + const template = Template.fromStack(Stack.of(lambda.resources.lambda)); |
| 63 | + |
| 64 | + template.resourceCountIs('AWS::Lambda::Function', 1); |
| 65 | + template.hasResourceProperties('AWS::Lambda::Function', { |
| 66 | + Handler: 'index.handler', |
| 67 | + Layers: [layerArn], |
| 68 | + }); |
| 69 | + }); |
| 70 | + |
| 71 | + void it('sets multiple valid layers', () => { |
| 72 | + const layerArns = [ |
| 73 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-1:1', |
| 74 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-2:1', |
| 75 | + ]; |
| 76 | + const functionFactory = defineFunction({ |
| 77 | + entry: './test-assets/default-lambda/handler.ts', |
| 78 | + name: 'lambdaWithMultipleLayers', |
| 79 | + layers: { |
| 80 | + myLayer1: layerArns[0], |
| 81 | + myLayer2: layerArns[1], |
| 82 | + }, |
| 83 | + }); |
| 84 | + const lambda = functionFactory.getInstance(getInstanceProps); |
| 85 | + const template = Template.fromStack(Stack.of(lambda.resources.lambda)); |
| 86 | + |
| 87 | + template.resourceCountIs('AWS::Lambda::Function', 1); |
| 88 | + template.hasResourceProperties('AWS::Lambda::Function', { |
| 89 | + Handler: 'index.handler', |
| 90 | + Layers: layerArns, |
| 91 | + }); |
| 92 | + }); |
| 93 | + |
| 94 | + void it('throws an error for an invalid layer ARN', () => { |
| 95 | + const invalidLayerArn = 'invalid:arn'; |
| 96 | + const functionFactory = defineFunction({ |
| 97 | + entry: './test-assets/default-lambda/handler.ts', |
| 98 | + name: 'lambdaWithInvalidLayer', |
| 99 | + layers: { |
| 100 | + invalidLayer: invalidLayerArn, |
| 101 | + }, |
| 102 | + }); |
| 103 | + assert.throws( |
| 104 | + () => functionFactory.getInstance(getInstanceProps), |
| 105 | + (error: AmplifyUserError) => { |
| 106 | + assert.strictEqual( |
| 107 | + error.message, |
| 108 | + `Invalid ARN format for layer: ${invalidLayerArn}` |
| 109 | + ); |
| 110 | + assert.ok(error.resolution); |
| 111 | + return true; |
| 112 | + } |
| 113 | + ); |
| 114 | + }); |
| 115 | + |
| 116 | + void it('throws an error for exceeding the maximum number of layers', () => { |
| 117 | + const layerArns = [ |
| 118 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-1:1', |
| 119 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-2:1', |
| 120 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-3:1', |
| 121 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-4:1', |
| 122 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-5:1', |
| 123 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer-6:1', |
| 124 | + ]; |
| 125 | + const layers: Record<string, string> = layerArns.reduce( |
| 126 | + (acc, arn, index) => { |
| 127 | + acc[`layer${index + 1}`] = arn; |
| 128 | + return acc; |
| 129 | + }, |
| 130 | + {} as Record<string, string> |
| 131 | + ); |
| 132 | + |
| 133 | + const functionFactory = defineFunction({ |
| 134 | + entry: './test-assets/default-lambda/handler.ts', |
| 135 | + name: 'lambdaWithTooManyLayers', |
| 136 | + layers, |
| 137 | + }); |
| 138 | + |
| 139 | + assert.throws( |
| 140 | + () => functionFactory.getInstance(getInstanceProps), |
| 141 | + (error: AmplifyUserError) => { |
| 142 | + assert.strictEqual( |
| 143 | + error.message, |
| 144 | + `A maximum of 5 unique layers can be attached to a function.` |
| 145 | + ); |
| 146 | + assert.ok(error.resolution); |
| 147 | + return true; |
| 148 | + } |
| 149 | + ); |
| 150 | + }); |
| 151 | + |
| 152 | + void it('checks if only unique Arns are being used', () => { |
| 153 | + const duplicateArn = |
| 154 | + 'arn:aws:lambda:us-east-1:123456789012:layer:my-layer:1'; |
| 155 | + const functionFactory = defineFunction({ |
| 156 | + entry: './test-assets/default-lambda/handler.ts', |
| 157 | + name: 'lambdaWithDuplicateLayers', |
| 158 | + layers: { |
| 159 | + layer1: duplicateArn, |
| 160 | + layer2: duplicateArn, |
| 161 | + layer3: duplicateArn, |
| 162 | + layer4: duplicateArn, |
| 163 | + layer5: duplicateArn, |
| 164 | + layer6: duplicateArn, |
| 165 | + }, |
| 166 | + }); |
| 167 | + |
| 168 | + const lambda = functionFactory.getInstance(getInstanceProps); |
| 169 | + const template = Template.fromStack(Stack.of(lambda.resources.lambda)); |
| 170 | + |
| 171 | + template.resourceCountIs('AWS::Lambda::Function', 1); |
| 172 | + template.hasResourceProperties('AWS::Lambda::Function', { |
| 173 | + Handler: 'index.handler', |
| 174 | + Layers: [duplicateArn], |
| 175 | + }); |
| 176 | + }); |
| 177 | +}); |
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