stack-monitor.test.js
1 "use strict"; 2 Object.defineProperty(exports, "__esModule", { value: true }); 3 const stack_activity_monitor_1 = require("../../lib/api/util/cloudformation/stack-activity-monitor"); 4 const aws_1 = require("../integ/helpers/aws"); 5 const mock_sdk_1 = require("./mock-sdk"); 6 let sdk; 7 let printer; 8 beforeEach(() => { 9 sdk = new mock_sdk_1.MockSdk(); 10 printer = new FakePrinter(); 11 }); 12 test('continue to the next page if it exists', async () => { 13 await testMonitorWithEventCalls([ 14 (request) => { 15 expect(request.NextToken).toBeUndefined(); 16 return { 17 StackEvents: [event(102)], 18 NextToken: 'some-token', 19 }; 20 }, 21 (request) => { 22 expect(request.NextToken).toBe('some-token'); 23 return { 24 StackEvents: [event(101)], 25 }; 26 }, 27 ]); 28 // Printer sees them in chronological order 29 expect(printer.eventIds).toEqual(['101', '102']); 30 }); 31 test('do not page further if we already saw the last event', async () => { 32 await testMonitorWithEventCalls([ 33 (request) => { 34 expect(request.NextToken).toBeUndefined(); 35 return { 36 StackEvents: [event(101)], 37 }; 38 }, 39 (request) => { 40 expect(request.NextToken).toBeUndefined(); 41 return { 42 StackEvents: [event(102), event(101)], 43 NextToken: 'some-token', 44 }; 45 }, 46 (request) => { 47 // Did not use the token 48 expect(request.NextToken).toBeUndefined(); 49 return {}; 50 }, 51 ]); 52 // Seen in chronological order 53 expect(printer.eventIds).toEqual(['101', '102']); 54 }); 55 test('do not page further if the last event is too old', async () => { 56 await testMonitorWithEventCalls([ 57 (request) => { 58 expect(request.NextToken).toBeUndefined(); 59 return { 60 StackEvents: [event(101), event(95)], 61 NextToken: 'some-token', 62 }; 63 }, 64 (request) => { 65 // Start again from the top 66 expect(request.NextToken).toBeUndefined(); 67 return {}; 68 }, 69 ]); 70 // Seen only the new one 71 expect(printer.eventIds).toEqual(['101']); 72 }); 73 test('do a final request after the monitor is stopped', async () => { 74 await testMonitorWithEventCalls([ 75 // Before stop 76 (request) => { 77 expect(request.NextToken).toBeUndefined(); 78 return { 79 StackEvents: [event(101)], 80 }; 81 }, 82 ], 83 // After stop 84 [ 85 (request) => { 86 expect(request.NextToken).toBeUndefined(); 87 return { 88 StackEvents: [event(102), event(101)], 89 }; 90 }, 91 ]); 92 // Seen both 93 expect(printer.eventIds).toEqual(['101', '102']); 94 }); 95 const T0 = 1597837230504; 96 // Events 0-99 are before we started paying attention 97 const T100 = T0 + 100 * 1000; 98 function event(nr) { 99 return { 100 EventId: `${nr}`, 101 StackId: 'StackId', 102 StackName: 'StackName', 103 Timestamp: new Date(T0 + nr * 1000), 104 }; 105 } 106 async function testMonitorWithEventCalls(beforeStopInvocations, afterStopInvocations = []) { 107 let describeStackEvents = jest.fn(); 108 let finished = false; 109 for (const invocation of beforeStopInvocations) { 110 const invocation_ = invocation; // Capture loop variable in local because of closure semantics 111 const isLast = invocation === beforeStopInvocations[beforeStopInvocations.length - 1]; 112 describeStackEvents = describeStackEvents.mockImplementationOnce(request => { 113 const ret = invocation_(request); 114 if (isLast) { 115 finished = true; 116 } 117 return ret; 118 }); 119 } 120 for (const invocation of afterStopInvocations) { 121 describeStackEvents = describeStackEvents.mockImplementationOnce(invocation); 122 } 123 describeStackEvents.mockImplementation(() => { return {}; }); 124 sdk.stubCloudFormation({ describeStackEvents }); 125 const monitor = new stack_activity_monitor_1.StackActivityMonitor(sdk.cloudFormation(), 'StackName', printer, undefined, new Date(T100)).start(); 126 await waitForCondition(() => finished); 127 await monitor.stop(); 128 } 129 class FakePrinter { 130 constructor() { 131 this.updateSleep = 0; 132 this.activities = []; 133 } 134 get eventIds() { 135 return this.activities.map(a => a.event.EventId); 136 } 137 addActivity(activity) { 138 this.activities.push(activity); 139 } 140 print() { } 141 start() { } 142 stop() { } 143 } 144 async function waitForCondition(cb) { 145 while (!cb()) { 146 await aws_1.sleep(10); 147 } 148 } 149 //# 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{ StackActivityMonitor, IActivityPrinter, StackActivity } from '../../lib/api/util/cloudformation/stack-activity-monitor';\nimport { sleep } from '../integ/helpers/aws';\nimport { MockSdk } from './mock-sdk';\n\nlet sdk: MockSdk;\nlet printer: FakePrinter;\nbeforeEach(() => {\n  sdk = new MockSdk();\n  printer = new FakePrinter();\n});\n\ntest('continue to the next page if it exists', async () => {\n  await testMonitorWithEventCalls([\n    (request) => {\n      expect(request.NextToken).toBeUndefined();\n      return {\n        StackEvents: [event(102)],\n        NextToken: 'some-token',\n      };\n    },\n    (request) => {\n      expect(request.NextToken).toBe('some-token');\n      return {\n        StackEvents: [event(101)],\n      };\n    },\n  ]);\n\n  // Printer sees them in chronological order\n  expect(printer.eventIds).toEqual(['101', '102']);\n});\n\ntest('do not page further if we already saw the last event', async () => {\n  await testMonitorWithEventCalls([\n    (request) => {\n      expect(request.NextToken).toBeUndefined();\n      return {\n        StackEvents: [event(101)],\n      };\n    },\n    (request) => {\n      expect(request.NextToken).toBeUndefined();\n      return {\n        StackEvents: [event(102), event(101)],\n        NextToken: 'some-token',\n      };\n    },\n    (request) => {\n      // Did not use the token\n      expect(request.NextToken).toBeUndefined();\n      return {};\n    },\n  ]);\n\n  // Seen in chronological order\n  expect(printer.eventIds).toEqual(['101', '102']);\n});\n\ntest('do not page further if the last event is too old', async () => {\n  await testMonitorWithEventCalls([\n    (request) => {\n      expect(request.NextToken).toBeUndefined();\n      return {\n        StackEvents: [event(101), event(95)],\n        NextToken: 'some-token',\n      };\n    },\n    (request) => {\n      // Start again from the top\n      expect(request.NextToken).toBeUndefined();\n      return {};\n    },\n  ]);\n\n  // Seen only the new one\n  expect(printer.eventIds).toEqual(['101']);\n});\n\ntest('do a final request after the monitor is stopped', async () => {\n  await testMonitorWithEventCalls([\n    // Before stop\n    (request) => {\n      expect(request.NextToken).toBeUndefined();\n      return {\n        StackEvents: [event(101)],\n      };\n    },\n  ],\n  // After stop\n  [\n    (request) => {\n      expect(request.NextToken).toBeUndefined();\n      return {\n        StackEvents: [event(102), event(101)],\n      };\n    },\n  ]);\n\n  // Seen both\n  expect(printer.eventIds).toEqual(['101', '102']);\n});\n\nconst T0 = 1597837230504;\n\n// Events 0-99 are before we started paying attention\nconst T100 = T0 + 100 * 1000;\n\nfunction event(nr: number): AWS.CloudFormation.StackEvent {\n  return {\n    EventId: `${nr}`,\n    StackId: 'StackId',\n    StackName: 'StackName',\n    Timestamp: new Date(T0 + nr * 1000),\n  };\n}\n\nasync function testMonitorWithEventCalls(\n  beforeStopInvocations: Array<(x: AWS.CloudFormation.DescribeStackEventsInput) => AWS.CloudFormation.DescribeStackEventsOutput>,\n  afterStopInvocations: Array<(x: AWS.CloudFormation.DescribeStackEventsInput) => AWS.CloudFormation.DescribeStackEventsOutput> = [],\n) {\n  let describeStackEvents = (jest.fn() as jest.Mock<AWS.CloudFormation.DescribeStackEventsOutput, [AWS.CloudFormation.DescribeStackEventsInput]>);\n\n  let finished = false;\n\n  for (const invocation of beforeStopInvocations) {\n    const invocation_ = invocation; // Capture loop variable in local because of closure semantics\n    const isLast = invocation === beforeStopInvocations[beforeStopInvocations.length - 1];\n    describeStackEvents = describeStackEvents.mockImplementationOnce(request => {\n      const ret = invocation_(request);\n      if (isLast) {\n        finished = true;\n      }\n      return ret;\n    });\n  }\n  for (const invocation of afterStopInvocations) {\n    describeStackEvents = describeStackEvents.mockImplementationOnce(invocation);\n  }\n  describeStackEvents.mockImplementation(() => { return {}; });\n\n  sdk.stubCloudFormation({ describeStackEvents });\n\n  const monitor = new StackActivityMonitor(sdk.cloudFormation(), 'StackName', printer, undefined, new Date(T100)).start();\n  await waitForCondition(() => finished);\n  await monitor.stop();\n}\n\n\nclass FakePrinter implements IActivityPrinter {\n  public updateSleep: number = 0;\n  public readonly activities: StackActivity[] = [];\n\n  public get eventIds() {\n    return this.activities.map(a => a.event.EventId);\n  }\n\n  public addActivity(activity: StackActivity): void {\n    this.activities.push(activity);\n  }\n\n  public print(): void { }\n  public start(): void { }\n  public stop(): void { }\n}\n\nasync function waitForCondition(cb: () => boolean): Promise<void> {\n  while (!cb()) {\n    await sleep(10);\n  }\n}\n"]}