/
test-utils.js
1083 lines (920 loc) · 45.9 KB
/
test-utils.js
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'use strict';
const sinon = require('sinon');
const expect = require('expect.js');
var awsV3Mock = require('aws-sdk-client-mock');
const {
CreateAliasCommand, DeleteAliasCommand, DeleteFunctionCommand, GetAliasCommand, GetFunctionConfigurationCommand, InvokeCommand, LambdaClient, PublishVersionCommand, UpdateFunctionConfigurationCommand, UpdateAliasCommand, ResourceNotFoundException } = require("@aws-sdk/client-lambda");
const { GetObjectCommand, S3Client } = require("@aws-sdk/client-s3");
process.env.sfCosts = `{"us-gov-west-1": 0.00003,"eu-north-1": 0.000025,
"eu-central-1": 0.000025,"us-east-1": 0.000025,"ap-northeast-1": 0.000025,
"ap-northeast-2": 0.0000271,"eu-south-1": 0.00002625,"af-south-1": 0.00002975,
"us-west-1": 0.0000279,"eu-west-3": 0.0000297,"ap-southeast-2": 0.000025,
"ap-east-1": 0.0000275,"eu-west-2": 0.000025,"me-south-1": 0.0000275,
"us-east-2": 0.000025,"ap-south-1": 0.0000285,"ap-southeast-1": 0.000025,
"us-gov-east-1": 0.00003,"ca-central-1": 0.000025,"eu-west-1": 0.000025,
"us-west-2": 0.000025,"sa-east-1": 0.0000375}`;
process.env.baseCosts = '{"x86_64": {"ap-east-1":2.9e-9,"af-south-1":2.8e-9,"me-south-1":2.6e-9,"eu-south-1":2.4e-9,"default":2.1e-9}, "arm64": {"default":1.7e-9}}';
process.env.AWS_REGION = 'af-south-1';
const utils = require('../../lambda/utils');
const { consoleLogStub: consoleLogSetupStub } = require('../setup.spec');
const sandBox = sinon.createSandbox();
// AWS SDK mocks
const lambdaMock = awsV3Mock.mockClient(LambdaClient);
lambdaMock.reset();
lambdaMock.on(GetAliasCommand).resolves({});
lambdaMock.on(GetFunctionConfigurationCommand).resolves({ MemorySize: 1024, State: 'Active', LastUpdateStatus: 'Successful', Architectures: ['x86_64'] });
lambdaMock.on(UpdateFunctionConfigurationCommand).resolves({});
lambdaMock.on(PublishVersionCommand).resolves({});
lambdaMock.on(DeleteFunctionCommand).resolves({});
lambdaMock.on(CreateAliasCommand).resolves({});
lambdaMock.on(DeleteAliasCommand).resolves({});
lambdaMock.on(InvokeCommand).resolves({});
lambdaMock.on(UpdateAliasCommand).resolves({});
const s3Mock = awsV3Mock.mockClient(S3Client);
s3Mock.reset();
s3Mock.on(GetObjectCommand).resolves({
Body: {
transformToString: async (encoding) => {
return '{"Value": "OK"}'
}
}
});
describe('Lambda Utils', () => {
// I'm dynamically generating tests for all these utilities
const lambdaUtilities = [
utils.getLambdaAlias,
utils.setLambdaPower,
utils.publishLambdaVersion,
utils.deleteLambdaVersion,
utils.createLambdaAlias,
utils.updateLambdaAlias,
utils.deleteLambdaAlias,
utils.invokeLambda,
utils.invokeLambdaWithProcessors,
utils.waitForFunctionUpdate,
];
// just returns the utility name for convenience
function _fname(func) {
const keys = Object.keys(utils);
for (let name of keys) {
if (utils[name] === func) {
return name;
}
}
throw new Error('Export not found! ' + func);
}
// this is mainly for coverage (it's not doing much, just making sure the code runs)
lambdaUtilities.forEach(func => {
describe(_fname(func), () => {
it('should return a promise', () => {
const result = func('arn:aws:lambda:us-east-1:XXX:function:YYY', 'test', 'test');
expect(result).to.be.an('object');
});
// TODO add more tests!
});
});
afterEach('Global mock utilities afterEach', () => {
// restore everything to its natural order
sandBox.restore();
});
describe('stepFunctionsCost', () => {
it('should return expected step base cost', () => {
process.env.sfCosts = '{"us-gov-west-1": 0.00003, "default": 0.000025}';
process.env.AWS_REGION = 'us-gov-west-1';
const result = utils.stepFunctionsBaseCost();
expect(result).to.be.equal(0.00003);
});
it('should return default step base cost', () => {
process.env.sfCosts = '{"us-gov-west-1": 0.00003, "default": 0.000025}';
process.env.AWS_REGION = 'af-south-1';
const result = utils.stepFunctionsBaseCost();
expect(result).to.be.equal(0.000025);
});
});
describe('stepFunctionsBaseCost', () => {
it('should return expected step total cost', () => {
process.env.sfCosts = '{"us-gov-west-1": 0.00003, "default": 0.000025}';
process.env.AWS_REGION = 'us-gov-west-1';
const nPower = 10;
const expectedCost = +(0.00003 * (6 + nPower)).toFixed(5);
const result = utils.stepFunctionsCost(nPower);
expect(result).to.be.equal(expectedCost);
});
});
describe('getLambdaPower', () => {
it('should return the memory value', async () => {
const value = await utils.getLambdaPower('arn:aws:lambda:us-east-1:XXX:function:YYY');
expect(value).to.be(1024);
});
});
describe('verifyAliasExistance', () => {
it('should return true if the alias exists', async () => {
sandBox.stub(utils, 'getLambdaAlias')
.callsFake(async () => {
return { FunctionVersion: '1' };
});
const aliasExists = await utils.verifyAliasExistance('arnOK', 'aliasName');
expect(aliasExists).to.be(true);
});
it('should return false if the alias does not exists', async () => {
sandBox.stub(utils, 'getLambdaAlias')
.callsFake(async () => {
const error = new ResourceNotFoundException('alias is not defined');
throw error;
});
const aliasExists = await utils.verifyAliasExistance('arnOK', 'aliasName');
expect(aliasExists).to.be(false);
});
});
describe('waitForFunctionUpdate', () => {
it('should return if LastUpdateStatus is successful', async () => {
// TODO: remove waitFor mock and test this properly
await utils.waitForFunctionUpdate('arn:aws:lambda:us-east-1:XXX:function:YYY');
});
});
describe('waitForAliasActive', () => {
it('should return if Status is Active', async () => {
// TODO: remove waitFor mock and test this properly
await utils.waitForAliasActive('arn:aws:lambda:us-east-1:XXX:function:YYY', 'aliasName');
});
});
describe('extractDuration', () => {
const textLog =
'START RequestId: 55bc566d-1e2c-11e7-93e6-6705ceb4c1cc Version: $LATEST\n' +
'END RequestId: 55bc566d-1e2c-11e7-93e6-6705ceb4c1cc\n' +
'REPORT RequestId: 55bc566d-1e2c-11e7-93e6-6705ceb4c1cc\tDuration: 469.40 ms\tBilled Duration: 500 ms\tMemory Size: 1024 MB\tMax Memory Used: 21 MB'
;
// JSON logs contain multiple objects, seperated by a newline
const jsonLog =
'{"timestamp":"2024-02-09T08:42:44.078Z","level":"INFO","requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","message":"Just some logs here =)"}\n' +
'{"time":"2024-02-09T08:42:44.078Z","type":"platform.start","record":{"requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","version":"8"}}\n' +
'{"time":"2024-02-09T08:42:44.079Z","type":"platform.runtimeDone","record":{"requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","status":"success","spans":[{"name":"responseLatency","start":"2024-02-09T08:42:44.078Z","durationMs":0.677},{"name":"responseDuration","start":"2024-02-09T08:42:44.079Z","durationMs":0.035},{"name":"runtimeOverhead","start":"2024-02-09T08:42:44.079Z","durationMs":0.211}],"metrics":{"durationMs":1.056,"producedBytes":50}}}\n' +
'{"time":"2024-02-09T08:42:44.080Z","type":"platform.report","record":{"requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","status":"success","metrics":{"durationMs":1.317,"billedDurationMs":2,"memorySizeMB":1024,"maxMemoryUsedMB":68}}}'
;
const jsonMixedLog =
'{"timestamp":"2024-02-09T08:42:44.078Z","level":"INFO","requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","message":"Just some logs here =)"}\n' +
'[AWS Parameters and Secrets Lambda Extension] 2024/04/11 02:14:17 PARAMETERS_SECRETS_EXTENSION_LOG_LEVEL is info. Log level set to info.' +
'{"time":"2024-02-09T08:42:44.078Z","type":"platform.start","record":{"requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","version":"8"}}\n' +
'{"time":"2024-02-09T08:42:44.079Z","type":"platform.runtimeDone","record":{"requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","status":"success","spans":[{"name":"responseLatency","start":"2024-02-09T08:42:44.078Z","durationMs":0.677},{"name":"responseDuration","start":"2024-02-09T08:42:44.079Z","durationMs":0.035},{"name":"runtimeOverhead","start":"2024-02-09T08:42:44.079Z","durationMs":0.211}],"metrics":{"durationMs":1.056,"producedBytes":50}}}\n' +
'{"time":"2024-02-09T08:42:44.080Z","type":"platform.report","record":{"requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","status":"success","metrics":{"durationMs":1.317,"billedDurationMs":4,"memorySizeMB":1024,"maxMemoryUsedMB":68}}}'
;
it('should extract the duration from a Lambda log (text format)', () => {
expect(utils.extractDuration(textLog)).to.be(500);
});
it('should return 0 if duration is not found', () => {
expect(utils.extractDuration('hello world')).to.be(0);
const partialLog = 'START RequestId: 55bc566d-1e2c-11e7-93e6-6705ceb4c1cc Version: $LATEST\n';
expect(utils.extractDuration(partialLog)).to.be(0);
});
it('should extract the duration from a Lambda log (json format)', () => {
expect(utils.extractDuration(jsonLog)).to.be(2);
});
it('should extract the duration from a Lambda log (json text mixed format)', () => {
expect(utils.extractDuration(jsonMixedLog)).to.be(4);
});
it('should explode if invalid json format document is provided', () => {
const invalidJSONLog = '{"timestamp":"2024-02-09T08:42:44.078Z","level":"INFO","requestId":"d661f7cf-9208-46b9-85b0-213b04a91065","message":"Just some logs here =)"}';
expect(() => utils.extractDuration(invalidJSONLog)).to.throwError();
});
});
describe('computePrice', () => {
const minCost = 2.1e-9; // $ per ms
const minRAM = 128; // MB
const value = 1024; // MB
const averageDuration = 300; // ms
it('should return the average price', () => {
const avgPrice = utils.computePrice(minCost, minRAM, value, averageDuration);
expect(avgPrice).to.be.a('number');
expect(avgPrice).to.be(minCost * (value / minRAM) * averageDuration);
});
});
describe('parseLogAndExtractDurations', () => {
const results = [
// 1s (will be discarded)
{ StatusCode: 200, LogResult: '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', Payload: 'null' },
// 1s
{ StatusCode: 200, LogResult: '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', Payload: 'null' },
// 2s -> avg!
{ StatusCode: 200, LogResult: 'U1RBUlQgUmVxdWVzdElkOiA0NzlmYjUxYy0xZTM4LTExZTctOTljYS02N2JmMTYzNjA4ZWQgVmVyc2lvbjogOTkKMjAxNy0wNC0xMFQyMTo1NDozMi42ODNaCTQ3OWZiNTFjLTFlMzgtMTFlNy05OWNhLTY3YmYxNjM2MDhlZAl2YWx1ZTEgPSB1bmRlZmluZWQKMjAxNy0wNC0xMFQyMTo1NDozMi42ODNaCTQ3OWZiNTFjLTFlMzgtMTFlNy05OWNhLTY3YmYxNjM2MDhlZAl2YWx1ZTIgPSB1bmRlZmluZWQKMjAxNy0wNC0xMFQyMTo1NDozMi42ODNaCTQ3OWZiNTFjLTFlMzgtMTFlNy05OWNhLTY3YmYxNjM2MDhlZAl2YWx1ZTMgPSB1bmRlZmluZWQKRU5EIFJlcXVlc3RJZDogNDc5ZmI1MWMtMWUzOC0xMWU3LTk5Y2EtNjdiZjE2MzYwOGVkClJFUE9SVCBSZXF1ZXN0SWQ6IDQ3OWZiNTFjLTFlMzgtMTFlNy05OWNhLTY3YmYxNjM2MDhlZAlEdXJhdGlvbjogMi4wIG1zCUJpbGxlZCBEdXJhdGlvbjogMiBtcyAJTWVtb3J5IFNpemU6IDEyOCBNQglNYXggTWVtb3J5IFVzZWQ6IDE1IE1C', Payload: 'null' },
// 3s
{ StatusCode: 200, LogResult: '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', Payload: 'null' },
// 3s (will be discarded)
{ StatusCode: 200, LogResult: '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', Payload: 'null' },
];
it('should return the list of durations', () => {
const durations = utils.parseLogAndExtractDurations(results);
expect(durations).to.be.a('array');
expect(durations.length).to.be(5);
expect(durations).to.eql([1, 1, 2, 3, 3]);
});
it('should return empty list if empty results', () => {
const durations = utils.parseLogAndExtractDurations([]);
expect(durations).to.be.an('array');
expect(durations.length).to.be(0);
});
it('should not explode if missing logs', () => {
const durations = utils.parseLogAndExtractDurations([
{ StatusCode: 200, Payload: 'null' },
]);
expect(durations).to.be.an('array');
expect(durations).to.eql([0]);
});
});
describe('computeAverageDuration', () => {
const durations = [
// keep 5 values because it's the minimum length
// `num` can't be smaller than 5, unless it's a dryrun
1, 2, 3, 4, 2000,
];
it('should return the average duration', () => {
const duration = utils.computeAverageDuration(durations, 0.2);
expect(duration).to.be(3);
});
it('should return the average duration custom trimming', () => {
const duration = utils.computeAverageDuration(durations, 0.4);
expect(duration).to.be(3);
});
it('should return the average duration with no trimmed value', () => {
const duration = utils.computeAverageDuration(durations, 0);
expect(duration).to.be(402);
});
it('should return the average duration even if not enough results to discard', () => {
const duration = utils.computeAverageDuration([1], 0.4);
expect(duration).to.be(1);
});
it('should return 0 if empty results', () => {
const duration = utils.computeAverageDuration([], 0.2);
expect(duration).to.be(0);
});
});
describe('computeTotalCost', () => {
const minCost = 2.1e-9; // $ per ms
const minRAM = 128; // MB
const value = 1024; // MB
const durations = [
100, 150, 200, 300, 400,
];
// sum all
const totDuration = durations.reduce((a, b) => a + b, 0);
it('should return the total cost', () => {
const duration = utils.computeTotalCost(minCost, minRAM, value, durations);
expect(duration).to.be(minCost * (value / minRAM) * totDuration);
});
it('should return 0 if empty durations', () => {
const duration = utils.computeTotalCost(minCost, minRAM, value, []);
expect(duration).to.be(0);
});
});
describe('base64decode', () => {
it('should convert a string to base64', () => {
expect(utils.base64decode('aGVsbG8gd29ybGQ=')).to.be('hello world');
expect(utils.base64decode('bG9yZW0gaXBzdW0=')).to.be('lorem ipsum');
});
it('should explode with non-string arguments', () => {
expect(() => utils.base64decode(null)).to.throwError();
expect(() => utils.base64decode(undefined)).to.throwError();
expect(() => utils.base64decode(10)).to.throwError();
});
});
describe('range', () => {
it('should generate a list of size N', () => {
expect(utils.range(1)).to.be.an('array');
expect(utils.range(0)).to.have.length(0);
expect(utils.range(5)).to.have.length(5);
expect(utils.range(50)).to.have.length(50);
expect(utils.range(500)).to.have.length(500);
});
it('should explode when called with invalid arguments', () => {
[-1, -2, -Infinity, Infinity, null, undefined].forEach(val => {
expect(() => utils.range(val)).to.throwError();
});
});
});
describe('lambdaClientFromARN', () => {
it('should return the region name', () => {
const arn = 'arn:aws:lambda:us-east-1:XXX:function:YYY';
expect(utils.regionFromARN(arn)).to.be('us-east-1');
});
[undefined, null, 0, 10, '', 'arn:aws', {}].forEach(arn => {
it('should explode when called with "' + arn + '"', () => {
expect(() => utils.lambdaClientFromARN(arn)).to.throwError();
});
});
});
describe('buildVisualizationURL', () => {
const stats = [
{ power: 1, duration: 2, cost: 3 },
{ power: 2, duration: 2, cost: 2 },
{ power: 3, duration: 1, cost: 2 },
];
const prefix = 'https://prefix/';
it('should return the visualization URL based on stats', () => {
const URL = utils.buildVisualizationURL(stats, prefix);
expect(URL).to.be.a('string');
expect(URL).to.contain('prefix');
expect(URL).to.contain('#');
expect(URL).to.contain(';');
expect(URL).to.contain('AQACAAMA'); // powers
expect(URL).to.contain('AAAAQAAAAEAAAIA'); // times
expect(URL).to.contain('AABAQAAAAEAAAABA'); // costs
});
it('should include the CNY currency if region is cn-north-1', () => {
process.env.AWS_REGION = 'cn-north-1';
const URL = utils.buildVisualizationURL(stats, prefix);
expect(URL).to.contain('?currency=CNY');
});
it('should include the CNY currency if region is cn-north-1', () => {
process.env.AWS_REGION = 'cn-northwest-1';
const URL = utils.buildVisualizationURL(stats, prefix);
expect(URL).to.contain('?currency=CNY');
});
});
describe('allPowerValues', () => {
it('should return a list of integers between 128 and 3008', () => {
const values = utils.allPowerValues();
expect(values).to.be.an('array');
values.forEach((val) => {
expect(val).to.be.a('number');
expect(val).to.be.greaterThan(127);
expect(val).to.be.lessThan(3009);
});
});
it('should return a list of integers at intervals of 64', () => {
const values = utils.allPowerValues();
let val1, val2;
for (let i = 0; i < values.length - 1; i++) {
val1 = values[i];
val2 = values[i + 1];
expect(val2 - val1).to.be(64);
}
});
});
describe('baseCostForRegion', () => {
const prices = {
'ap-east-1': 0.0000002865,
'af-south-1': 0.0000002763,
'me-south-1': 0.0000002583,
default: 0.0000002083,
};
it('should return ap-east-1 base price', () => {
expect(utils.baseCostForRegion(prices, 'ap-east-1')).to.be(0.0000002865);
});
it('should return default base price', () => {
expect(utils.baseCostForRegion(prices, 'eu-west-1')).to.be(0.0000002083);
});
});
describe('lambdaBaseCost', () => {
it('should return x86 base prices', () => {
expect(utils.lambdaBaseCost('eu-west-1', 'x86_64')).to.be(2.1e-9);
});
it('should return default base price', () => {
expect(utils.lambdaBaseCost('eu-west-1', 'arm64')).to.be(1.7e-9);
});
it('should explode if invalid architecture', () => {
expect(() => utils.lambdaBaseCost('eu-west-1', 'invalid_arch')).to.throwError();
});
});
describe('getLambdaConfig', () => {
it('should return a string representing the arch type', async () => {
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const alias = 'aliasName';
const { architecture } = await utils.getLambdaConfig(ARN, alias);
expect(architecture).to.be('x86_64');
});
it('should return arm64 when Graviton is supported', async () => {
lambdaMock.on(GetFunctionConfigurationCommand).resolves({ MemorySize: 1024, State: 'Active', LastUpdateStatus: 'Successful', Architectures: ['arm64'] });
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const alias = 'aliasName';
const { architecture } = await utils.getLambdaConfig(ARN, alias);
expect(architecture).to.be('arm64');
});
it('should always return x86_64 when Graviton is not supported', async () => {
lambdaMock.on(GetFunctionConfigurationCommand).resolves({ MemorySize: 1024, State: 'Active', LastUpdateStatus: 'Successful' });
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const alias = 'aliasName';
const { architecture } = await utils.getLambdaConfig(ARN, alias);
expect(architecture).to.be('x86_64');
});
it('should return isPending true when function/alias state is Pending', async () => {
lambdaMock.on(GetFunctionConfigurationCommand).resolves({ MemorySize: 1024, State: 'Pending', LastUpdateStatus: 'Successful' });
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const alias = 'aliasName';
const { isPending } = await utils.getLambdaConfig(ARN, alias);
expect(isPending).to.be(true);
});
it('should return isPending false when function/alias state is not Pending', async () => {
lambdaMock.on(GetFunctionConfigurationCommand).resolves({ MemorySize: 1024, State: 'Active', LastUpdateStatus: 'Successful' });
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const alias = 'aliasName';
const { isPending } = await utils.getLambdaConfig(ARN, alias);
expect(isPending).to.be(false);
});
it('should return isPending false when function/alias state is missing', async () => {
lambdaMock.on(GetFunctionConfigurationCommand).resolves({ MemorySize: 1024, LastUpdateStatus: 'Successful' });
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const alias = 'aliasName';
const { isPending } = await utils.getLambdaConfig(ARN, alias);
expect(isPending).to.be(false);
});
});
describe('invokeLambdaProcessor', () => {
var invokeLambdaCounter;
beforeEach('mock API call', () => {
invokeLambdaCounter = 0;
});
it('should invoke the processing function without an alias', async () => {
const ARN = 'arn:aws:lambda:eu-west-1:XXX:function:name';
const data = await utils.invokeLambdaProcessor(ARN, '{}');
expect(data).to.be(undefined); // mocked API call
});
it('should invoke the processing function', async () => {
sandBox.stub(utils, 'invokeLambda')
.callsFake(async () => {
invokeLambdaCounter++;
return {
Payload: '{"OK": "OK"}',
};
});
const data = await utils.invokeLambdaProcessor('arnOK', {});
expect(invokeLambdaCounter).to.be(1);
expect(data).to.be('{"OK": "OK"}');
});
const invokeLambdaProcessorReturningUnhandledError = async ({ disablePayloadLogs, isPayloadInErrorMessage }) => {
const payload = { keyOne: 'value-one' };
sandBox.stub(utils, 'invokeLambda')
.callsFake(async () => {
invokeLambdaCounter++;
return {
Payload: '{"KO": "KO"}',
FunctionError: 'Unhandled',
};
});
try {
const data = await utils.invokeLambdaProcessor('arnOK', payload, 'Pre', disablePayloadLogs);
expect(data).to.be(null);
} catch (ex) {
expect(ex.message).to.contain('failed with error');
expect(ex.message.includes('and payload')).to.be(isPayloadInErrorMessage);
}
expect(invokeLambdaCounter).to.be(1);
};
it('should explode if processor fails and share payload in error when disablePayloadLogs is undefined', async () => invokeLambdaProcessorReturningUnhandledError({
disablePayloadLogs: undefined,
isPayloadInErrorMessage: true,
}));
it('should explode if processor fails and share payload in error when disablePayloadLogs is false', async () => invokeLambdaProcessorReturningUnhandledError({
disablePayloadLogs: false,
isPayloadInErrorMessage: true,
}));
it('should explode if processor fails and not share payload in error when disablePayloadLogs is true', async () => invokeLambdaProcessorReturningUnhandledError({
disablePayloadLogs: true,
isPayloadInErrorMessage: false,
}));
});
const isJsonString = (str) => {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
};
describe('convertPayload', () => {
it('should JSON-encode strings, if not JSON strings already', async () => {
const strings = [
'test',
'',
' ',
];
strings.forEach(s => {
expect(utils.convertPayload(s)).to.be('"' + s + '"');
expect(isJsonString(utils.convertPayload(s))).to.be(true);
});
});
it('should return already a JSON-encoded string as is', async () => {
const strings = [
'{"test": true}',
'[]',
'true',
'null',
];
strings.forEach(s => {
expect(utils.convertPayload(s)).to.be(s);
expect(isJsonString(utils.convertPayload(s))).to.be(true);
});
});
it('should return undefined when undefined is given', async () => {
expect(utils.convertPayload()).to.be(undefined);
expect(utils.convertPayload(undefined)).to.be(undefined);
});
it('should convert everything else to string', async () => {
expect(utils.convertPayload(null)).to.be('null');
expect(utils.convertPayload({})).to.be('{}');
expect(utils.convertPayload({ test: true })).to.be('{"test":true}');
expect(utils.convertPayload([])).to.be('[]');
expect(utils.convertPayload([1, 2, 3])).to.be('[1,2,3]');
expect(utils.convertPayload(['ok', {}])).to.be('["ok",{}]');
});
});
describe('generatePayloads', () => {
it('should generate a list of the same payload, if not weighted', async () => {
const payload = { test: true };
const output = utils.generatePayloads(10, payload);
expect(output.length).to.be(10);
output.forEach(p => {
expect(p).to.be('{"test":true}');
expect(isJsonString(p)).to.be(true);
});
});
it('should generate a list of encoded JSON strings, if not weighted', async () => {
const payload = 'just a string';
const output = utils.generatePayloads(10, payload);
expect(output.length).to.be(10);
output.forEach(p => {
expect(p).to.be('"just a string"');
expect(isJsonString(p)).to.be(true);
});
});
it('should return input array as output if not weighted', async() => {
let payloads = [
[],
[{}],
[1, 2, 3],
[{ weight: 1 }],
[{ payload: {}, weight: 1 }, { payload: {}}],
[{ payload: {} }],
];
payloads.forEach(payload => {
let output = utils.generatePayloads(10, payload);
expect(output.length).to.be(10);
expect(output.every(p => p === JSON.stringify(payload))).to.be(true);
});
});
it('should explode if num < count(payloads)', async () => {
const weightedPayload = [ // 6 weighted payloads
{ weight: 1, payload: {} },
{ weight: 1, payload: { test: 1 } },
{ weight: 1, payload: { test: 2 } },
{ weight: 1, payload: { ok: 1 } },
{ weight: 1, payload: { ok: 2 } },
{ weight: 1, payload: { ok: 3 } },
];
expect(() => utils.generatePayloads(5, weightedPayload)).to.throwError();
});
it('should return weighted payloads (100/2)', async () => {
const weightedPayload = [
{ payload: { test: 'A' }, weight: 1 },
{ payload: { test: 'B' }, weight: 1 },
];
const counters = {
A: 0, B: 0,
};
const output = utils.generatePayloads(100, weightedPayload);
expect(output.length).to.be(100);
output.forEach(payload => {
counters[JSON.parse(payload).test] += 1;
});
expect(counters.A).to.be(50);
expect(counters.B).to.be(50);
});
it('should return weighted payloads (100/3)', async () => {
const weightedPayload = [
{ payload: { test: 'A' }, weight: 1 },
{ payload: { test: 'B' }, weight: 1 },
{ payload: { test: 'C' }, weight: 1 },
];
const counters = {
A: 0, B: 0, C: 0,
};
const output = utils.generatePayloads(100, weightedPayload);
expect(output.length).to.be(100);
output.forEach(payload => {
expect(payload).to.be.a('string');
counters[JSON.parse(payload).test] += 1;
});
expect(counters.A).to.be(33);
expect(counters.B).to.be(33);
expect(counters.C).to.be(34); // the last payload will fill the missing gap
});
it('should return weighted payloads (20/3)', async () => {
const weightedPayload = [
{ payload: { test: 'A' }, weight: 1 },
{ payload: { test: 'B' }, weight: 1 },
{ payload: { test: 'C' }, weight: 1 },
];
const counters = {
A: 0, B: 0, C: 0,
};
const output = utils.generatePayloads(20, weightedPayload);
expect(output.length).to.be(20);
output.forEach(payload => {
expect(payload).to.be.a('string');
counters[JSON.parse(payload).test] += 1;
});
expect(counters.A).to.be(6);
expect(counters.B).to.be(6);
expect(counters.C).to.be(8); // the last payload will fill the missing gap
});
it('should return weighted payloads (10/1)', async () => {
const weightedPayload = [
{ payload: { test: 'A' }, weight: 1 },
];
const counters = {
A: 0,
};
const output = utils.generatePayloads(10, weightedPayload);
expect(output.length).to.be(10);
output.forEach(payload => {
expect(payload).to.be.a('string');
counters[JSON.parse(payload).test] += 1;
});
expect(counters.A).to.be(10);
});
it('should return weighted payloads (23/4)', async () => {
const weightedPayload = [
{ payload: { test: 'A' }, weight: 1 },
{ payload: { test: 'B' }, weight: 1 },
{ payload: { test: 'C' }, weight: 1 },
{ payload: { test: 'D' }, weight: 1 },
];
const counters = {
A: 0, B: 0, C: 0, D: 0,
};
const output = utils.generatePayloads(23, weightedPayload);
expect(output.length).to.be(23);
output.forEach(payload => {
expect(payload).to.be.a('string');
counters[JSON.parse(payload).test] += 1;
});
expect(counters.A).to.be(5);
expect(counters.B).to.be(5);
expect(counters.C).to.be(5);
expect(counters.D).to.be(8);
});
it('should return weighted payloads (54/5)', async () => {
const weightedPayload = [
{ payload: { test: 'A' }, weight: 1 },
{ payload: { test: 'B' }, weight: 1 },
{ payload: { test: 'C' }, weight: 1 },
{ payload: { test: 'D' }, weight: 1 },
{ payload: { test: 'E' }, weight: 1 },
];
const counters = {
A: 0, B: 0, C: 0, D: 0, E: 0,
};
const output = utils.generatePayloads(54, weightedPayload);
expect(output.length).to.be(54);
output.forEach(payload => {
expect(payload).to.be.a('string');
counters[JSON.parse(payload).test] += 1;
});
expect(counters.A).to.be(10);
expect(counters.B).to.be(10);
expect(counters.C).to.be(10);
expect(counters.D).to.be(10);
expect(counters.E).to.be(14);
});
it('should return weighted payloads (30/26)', async () => {
const weightedPayload = [
{ payload: { test: '1' }, weight: 1 },
{ payload: { test: '2' }, weight: 1 },
{ payload: { test: '3' }, weight: 1 },
{ payload: { test: '4' }, weight: 1 },
{ payload: { test: '5' }, weight: 1 },
{ payload: { test: '6' }, weight: 1 },
{ payload: { test: '7' }, weight: 1 },
{ payload: { test: '8' }, weight: 1 },
{ payload: { test: '9' }, weight: 1 },
{ payload: { test: '10' }, weight: 1 },
{ payload: { test: '11' }, weight: 1 },
{ payload: { test: '12' }, weight: 1 },
{ payload: { test: '13' }, weight: 1 },
{ payload: { test: '14' }, weight: 1 },
{ payload: { test: '15' }, weight: 1 },
{ payload: { test: '16' }, weight: 1 },
{ payload: { test: '17' }, weight: 1 },
{ payload: { test: '18' }, weight: 1 },
{ payload: { test: '19' }, weight: 1 },
{ payload: { test: '20' }, weight: 1 },
{ payload: { test: '21' }, weight: 1 },
{ payload: { test: '22' }, weight: 1 },
{ payload: { test: '23' }, weight: 1 },
{ payload: { test: '24' }, weight: 1 },
{ payload: { test: '25' }, weight: 1 },
{ payload: { test: '26' }, weight: 1 },
];
const counters = {
1: 0, 2: 0, 3: 0, 4: 0, 5: 0, 6: 0, 7: 0, 8: 0, 9: 0, 10: 0,
11: 0, 12: 0, 13: 0, 14: 0, 15: 0, 16: 0, 17: 0, 18: 0, 19: 0, 20: 0,
21: 0, 22: 0, 23: 0, 24: 0, 25: 0, 26: 0,
};
const output = utils.generatePayloads(30, weightedPayload);
expect(output.length).to.be(30);
output.forEach(payload => {
expect(payload).to.be.a('string');
counters[JSON.parse(payload).test] += 1;
});
for (let i = 1; i < 26; i++) {
expect(counters[i]).to.be(1);
}
expect(counters[26]).to.be(1 + 4);
});
});
describe('isWeightedPayload', () => {
it('should return true for a correctly weighted payload', () => {
const validPayload = [
{ payload: { data: 'foo' }, weight: 5 },
{ payload: { data: 'bar' }, weight: 10 },
];
expect(utils.isWeightedPayload(validPayload)).to.be(true);
});
it('should return false for payload only containing weights (no "payload" property)', () => {
const validPayload = [
{ weight: 5 },
{ weight: 10 },
];
expect(utils.isWeightedPayload(validPayload)).to.be(false);
});
it('should return false for a payload that is not an array', () => {
const invalidPayload = { payload: { data: 'foo' }, weight: 5 };
expect(utils.isWeightedPayload(invalidPayload)).to.be(false);
});
it('should return false for an undefined payload', () => {
const invalidPayload = undefined;
expect(utils.isWeightedPayload(invalidPayload)).to.be(false);
});
it('should return false for an empty array payload', () => {
const invalidPayload = [];
expect(utils.isWeightedPayload(invalidPayload)).to.be(false);
});
it('should return false for an invalid payload array (elements missing weight property)', () => {
const invalidPayload = [
{ payload: { data: 'foo' } },
{ payload: { data: 'bar' }, weight: 10 },
];
expect(utils.isWeightedPayload(invalidPayload)).to.be(false);
});
it('should return false for an invalid payload (elements missing payload property)', () => {
const invalidPayload = [
{ weight: 5 },
{ payload: { data: 'bar' }, weight: 10 },
];
expect(utils.isWeightedPayload(invalidPayload)).to.be(false);
});
});
describe('fetchPayloadFromS3', () => {
it('should fetch the object from S3 if valid URI', async () => {
const payload = await utils.fetchPayloadFromS3('s3://my-bucket/my-key.json');
expect(payload).to.be.an('object');
expect(payload.Value).to.be('OK');
});
const invalidURIs = [
'',
'/',
'bucket/key.json',
'/bucket/key.json',
'/key.json',
'key.json',
's3://bucket/',
's3://key.json',
's3://',
];
invalidURIs.forEach(async (uri) => {
it(`should explode if invalid URI - ${uri}`, async () => {
try {
await utils.fetchPayloadFromS3(uri);
throw new Error(`${uri} did not throw`);
} catch (err) {
expect(err.message).to.contain('Invalid S3 path');
}
});
});
it('should throw if access denied', async () => {
const err = new Error('Access Denied');
err.$response = {
statusCode: 403,
}
s3Mock.on(GetObjectCommand).callsFake(input => {
throw err;
});
try {
await utils.fetchPayloadFromS3('s3://bucket/key.json');
throw new Error('Did not catch 403');
} catch (err) {
expect(err.message).to.contain('Permission denied');
}
});
it('should throw if object not found', async () => {
const err = new Error('Object not found');
err.$response = {
statusCode: 404,
}
s3Mock.on(GetObjectCommand).callsFake(input => {
throw err;
});
try {
await utils.fetchPayloadFromS3('s3://bucket/key.json');
throw new Error('Did not catch 404');
} catch (err) {
expect(err.message).to.contain('does not exist');
}
});
it('should throw if unknown error', async () => {
const err = new Error('Whatever error');
err.$response = {
statusCode: 500,
}
s3Mock.on(GetObjectCommand).callsFake(input => {
throw err;
});
try {
await utils.fetchPayloadFromS3('s3://bucket/key.json');
throw new Error('Did not catch unknown error');
} catch (err) {
expect(err.message).to.contain('Unknown error');
expect(err.message).to.contain('Whatever error');
}
});
const validJson = [
'{"value": "ok"}',
'[1, 2, 3]',
'[{"value": "ok"}, {"value2": "ok2"}]',
];
validJson.forEach(async (str) => {
it('should parse string if valid json - ' + str, async () => {
s3Mock.on(GetObjectCommand).resolves({
Body: {
transformToString: async (encoding) => {
return str
}
}
});
const payload = await utils.fetchPayloadFromS3('s3://bucket/key.json');
expect(payload).to.be.an('object');
});
});
it('should return string if invalid json', async () => {