66 lines
1.8 KiB
TypeScript
66 lines
1.8 KiB
TypeScript
import { expect } from "chai";
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import { DPT8 } from "../src/DPT8"
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import { BufferLengthError } from "../src/errors/BufferLengthError";
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import { InvalidValueError } from "../src/errors/InvalidValueError";
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import { compareBuffers } from "./util"
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let value: number = 256
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let overflowValue: number = 40000
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let bufferPositive = Buffer.from([1, 0])
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let bufferNegative = Buffer.from([255, 0])
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let bufferEmpty = Buffer.from([])
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let bufferBiggerSize = Buffer.from([0xff, 0xff, 0x63, 0xc0])
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describe("Test DPT008", (): void => {
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let dpt = new DPT8();
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it("Decode buffer acceptable", async function () {
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expect(dpt.decoder(bufferPositive)).is.equal(value);
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expect(dpt.decoder(bufferNegative)).is.equal(-value);
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});
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it("Decode empty buffer", async function () {
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var testFunction = function () {
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const value = dpt.decoder(bufferEmpty)
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}
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expect(testFunction).to.throw(BufferLengthError);
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});
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it("Decode oversized buffer", async function () {
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var testFunction = function () {
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const value = dpt.decoder(bufferBiggerSize)
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}
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expect(testFunction).to.throw(BufferLengthError);
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});
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/* Encoder tests */
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it("encode valid", async function () {
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expect(compareBuffers(dpt.encoder(value), bufferPositive)).is.true;
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expect(compareBuffers(dpt.encoder(-value), bufferNegative)).is.true;
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});
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it("encode invalid", async function () {
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var testFunction1 = function () {
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const value = dpt.encoder(-overflowValue)
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}
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var testFunction2 = function () {
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const value = dpt.encoder(overflowValue)
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}
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expect(testFunction1).to.throw(InvalidValueError);
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expect(testFunction2).to.throw(InvalidValueError);
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});
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it("encode undefined", async function () {
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var testFunction = function () {
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const value = dpt.encoder(undefined)
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}
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expect(testFunction).to.throw(InvalidValueError);
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});
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}); |