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52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
"use strict";
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const tape = require("tape-catch");
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const fs = require("fs");
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const path = require("path");
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const util = require("util");
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const evaluate = require("../src/evaluate");
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const NIX_SOURCE_REPO = process.env.NIX_SOURCE_REPO;
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if (NIX_SOURCE_REPO == null) {
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throw new Error(`To run the upstream Nix language tests, you must specify a NIX_SOURCE_REPO environment variable, that points at the root of a local checkout of the Git repository for Nix`);
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}
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const testsPath = path.join(NIX_SOURCE_REPO, "tests/lang");
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let tests = fs.readdirSync(testsPath)
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.filter((entry) => entry.endsWith(".exp"))
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.map((entry) => entry.replace(/\.exp$/, ""));
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function formatResultNode(node) {
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if (typeof node === "string") {
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return `"${node.replace(/"/g, '\\"')}"`;
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} else if (Array.isArray(node)) {
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return `[ ${node.map(formatResultNode).join(" ")} ]`;
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} else {
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return node.toString();
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}
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}
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for (let test of tests) {
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try {
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let expression = fs.readFileSync(path.join(testsPath, `${test}.nix`), "utf8");
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let expectedResult = fs.readFileSync(path.join(testsPath, `${test}.exp`), "utf8").replace(/\n$/, "");
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tape(`Nix upstream language tests - ${test}`, (test) => {
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test.plan(1);
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let result = formatResultNode(evaluate(expression).value);
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test.equals(expectedResult, result);
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});
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} catch (error) {
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// FIXME: This would currently cause ENOENTs during evaluation (eg. reading a file from Nix itself) to be ignored
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if (error.code === "ENOENT") {
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// skip
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} else {
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throw error;
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}
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}
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}
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