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serverless-spy

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CDK-based library for writing elegant integration tests on AWS serverless architecture and an additional web console to monitor events in real time.

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import { toHex } from "@smithy/util-hex-encoding"; export class Int64 { constructor(bytes) { this.bytes = bytes; if (bytes.byteLength !== 8) { throw new Error("Int64 buffers must be exactly 8 bytes"); } } static fromNumber(number) { if (number > 9223372036854776000 || number < -9223372036854776000) { throw new Error(`${number} is too large (or, if negative, too small) to represent as an Int64`); } const bytes = new Uint8Array(8); for (let i = 7, remaining = Math.abs(Math.round(number)); i > -1 && remaining > 0; i--, remaining /= 256) { bytes[i] = remaining; } if (number < 0) { negate(bytes); } return new Int64(bytes); } valueOf() { const bytes = this.bytes.slice(0); const negative = bytes[0] & 0b10000000; if (negative) { negate(bytes); } return parseInt(toHex(bytes), 16) * (negative ? -1 : 1); } toString() { return String(this.valueOf()); } } function negate(bytes) { for (let i = 0; i < 8; i++) { bytes[i] ^= 0xff; } for (let i = 7; i > -1; i--) { bytes[i]++; if (bytes[i] !== 0) break; } }