20 lines
684 B
JavaScript
20 lines
684 B
JavaScript
import { Readable } from "stream";
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export class ReadFromBuffers extends Readable {
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constructor(options) {
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super(options);
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this.numBuffersRead = 0;
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this.buffersToRead = options.buffers;
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this.errorAfter = typeof options.errorAfter === "number" ? options.errorAfter : -1;
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}
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_read(size) {
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if (this.errorAfter !== -1 && this.errorAfter === this.numBuffersRead) {
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this.emit("error", new Error("Mock Error"));
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return;
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}
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if (this.numBuffersRead >= this.buffersToRead.length) {
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return this.push(null);
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}
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return this.push(this.buffersToRead[this.numBuffersRead++]);
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}
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}
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