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index.js
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index.js
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var readdir = require("fs-readdir-recursive");
var helper = require("babel-helper-fixtures");
var assert = require("assert");
var rimraf = require("rimraf");
var outputFileSync = require("output-file-sync");
var child = require("child_process");
var path = require("path");
var chai = require("chai");
var fs = require("fs");
var pathExists = require("path-exists");
var _ = require("lodash");
var fixtureLoc = path.join(__dirname, "fixtures");
var tmpLoc = path.join(__dirname, "tmp");
var presetLocs = [
path.join(__dirname, "../../babel-preset-es2015"),
path.join(__dirname, "../../babel-preset-react")
].join(",");
var pluginLocs = [
path.join(__dirname, "/../../babel-plugin-transform-strict-mode"),
path.join(__dirname, "/../../babel-plugin-transform-es2015-modules-commonjs"),
].join(",");
var readDir = function (loc) {
var files = {};
if (pathExists.sync(loc)) {
_.each(readdir(loc), function (filename) {
files[filename] = helper.readFile(path.join(loc, filename));
});
}
return files;
};
var saveInFiles = function (files) {
_.each(files, function (content, filename) {
outputFileSync(filename, content);
});
};
var assertTest = function (stdout, stderr, opts) {
var expectStderr = opts.stderr.trim();
stderr = stderr.trim();
if (opts.stderr) {
if (opts.stderrContains) {
assert.ok(_.includes(stderr, expectStderr), "stderr " + JSON.stringify(stderr) + " didn't contain " + JSON.stringify(expectStderr));
} else {
chai.expect(stderr).to.equal(expectStderr, "stderr didn't match");
}
} else if (stderr) {
throw new Error("stderr:\n" + stderr);
}
var expectStdout = opts.stdout.trim();
stdout = stdout.trim();
stdout = stdout.replace(/\\/g, "/");
if (opts.stdout) {
if (opts.stdoutContains) {
assert.ok(_.includes(stdout, expectStdout), "stdout " + JSON.stringify(stdout) + " didn't contain " + JSON.stringify(expectStdout));
} else {
chai.expect(stdout).to.equal(expectStdout, "stdout didn't match");
}
} else if (stdout) {
throw new Error("stdout:\n" + stdout);
}
_.each(opts.outFiles, function (expect, filename) {
var actual = helper.readFile(filename);
chai.expect(actual).to.equal(expect, "out-file " + filename);
});
};
var buildTest = function (binName, testName, opts) {
var binLoc = path.join(__dirname, "../lib", binName);
return function (callback) {
clear();
saveInFiles(opts.inFiles);
var args = [binLoc];
if (binName !== "babel-external-helpers") {
args.push("--presets", presetLocs, "--plugins", pluginLocs);
}
if (binName === "babel-node") {
args.push("--only", "packages/*/test");
}
args = args.concat(opts.args);
var spawn = child.spawn(process.execPath, args);
var stderr = "";
var stdout = "";
spawn.stderr.on("data", function (chunk) {
stderr += chunk;
});
spawn.stdout.on("data", function (chunk) {
stdout += chunk;
});
spawn.on("close", function () {
var err;
try {
assertTest(stdout, stderr, opts);
} catch (e) {
err = e;
}
if (err) {
err.message = args.join(" ") + ": " + err.message;
}
callback(err);
});
if (opts.stdin) {
spawn.stdin.write(opts.stdin);
spawn.stdin.end();
}
};
};
var clear = function () {
process.chdir(__dirname);
if (pathExists.sync(tmpLoc)) rimraf.sync(tmpLoc);
fs.mkdirSync(tmpLoc);
process.chdir(tmpLoc);
};
_.each(fs.readdirSync(fixtureLoc), function (binName) {
if (binName[0] === ".") return;
var suiteLoc = path.join(fixtureLoc, binName);
suite("bin/" + binName, function () {
_.each(fs.readdirSync(suiteLoc), function (testName) {
if (testName[0] === ".") return;
var testLoc = path.join(suiteLoc, testName);
var opts = {
args: []
};
var optionsLoc = path.join(testLoc, "options.json");
if (pathExists.sync(optionsLoc)) _.merge(opts, require(optionsLoc));
_.each(["stdout", "stdin", "stderr"], function (key) {
var loc = path.join(testLoc, key + ".txt");
if (pathExists.sync(loc)) {
opts[key] = helper.readFile(loc);
} else {
opts[key] = opts[key] || "";
}
});
opts.outFiles = readDir(path.join(testLoc, "out-files"));
opts.inFiles = readDir(path.join(testLoc, "in-files"));
var babelrcLoc = path.join(testLoc, ".babelrc");
if (pathExists.sync(babelrcLoc)) {
// copy .babelrc file to tmp directory
opts.inFiles['.babelrc'] = helper.readFile(babelrcLoc);
}
test(testName, buildTest(binName, testName, opts));
});
});
});