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Hornwitser
8de76b5cfe
Pull the LineSplitter class out of lib/factorio to its own stream module and refactor it to be based on stream.Transform. This allows composing with other streams by piping it around.
58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
"use strict";
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const assert = require("assert").strict;
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const events = require("events");
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const fs = require("fs-extra");
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const path = require("path");
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const libStream = require("@clusterio/lib/stream");
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describe("lib/stream", function() {
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describe("class LineSplitter", function() {
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function createSplitter(lines) {
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let stream = new libStream.LineSplitter({ readableObjectMode: true });
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stream.on("data", line => lines.push(line.toString("utf-8")));
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return stream;
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}
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it("should split three lines", function() {
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let lines = [];
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let ls = createSplitter(lines);
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ls.write(Buffer.from("line 1\nline 2\nline 3\n"));
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ls.end();
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assert.deepEqual(lines, ["line 1", "line 2", "line 3"]);
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});
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it("should split three Windows line endings lines", function() {
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let lines = [];
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let ls = createSplitter(lines);
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ls.write(Buffer.from("line 1\r\nline 2\r\nline 3\r\n"));
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ls.end();
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assert.deepEqual(lines, ["line 1", "line 2", "line 3"]);
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});
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it("should handle mixed line endings", function() {
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let lines = [];
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let ls = createSplitter(lines);
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ls.write(Buffer.from("1\n\n2\r\n\r\n3\n4"));
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ls.end();
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assert.deepEqual(lines, ["1", "", "2", "", "3", "4"]);
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});
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it("should give the last non-terminated line on .end()", function() {
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let lines = [];
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let ls = createSplitter(lines);
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ls.write(Buffer.from("line a\nline b"));
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assert.deepEqual(lines, ["line a"]);
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ls.end();
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assert.deepEqual(lines, ["line a", "line b"]);
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});
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it("should handled partial lines", function() {
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let lines = [];
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let ls = createSplitter(lines);
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ls.write(Buffer.from("part 1"));
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ls.write(Buffer.from(" part 2 "));
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ls.write(Buffer.from("part 3\n"));
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ls.end();
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assert.deepEqual(lines, ["part 1 part 2 part 3"]);
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});
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});
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});
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