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360 lines (306 loc) · 11.1 KB
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var tty = require("tty")
, readline = require("readline")
, fs = require("fs")
, path = require("path")
, child_process = require("child_process")
, os = require("os")
, mocha = require("mocha")
, Base = mocha.reporters.Base
, color = Base.color
, cursor = Base.cursor
, ms = require("mocha/lib/ms");
var isatty = tty.isatty(1) && tty.isatty(2);
var tapRangePattern = /^(\d+)\.\.(\d+)(?:$|\r\n?|\n)/;
var tapTestPattern = /^(not\sok|ok)\s+(\d+)\s+(?:-\s+)?(.*)$/;
var tapCommentPattern = /^#(?: (tests|pass|fail) (\d+)$)?/;
exports.runTestsInParallel = runTestsInParallel;
exports.ProgressBars = ProgressBars;
function runTestsInParallel(taskConfigsFolder, run, options, cb) {
if (options === undefined) options = { };
return discoverTests(run, options, function (error) {
if (error) {
return cb(error);
}
return runTests(taskConfigsFolder, run, options, cb);
});
}
function discoverTests(run, options, cb) {
console.log("Discovering tests...");
var cmd = "mocha -R " + require.resolve("./mocha-none-reporter.js") + " " + run;
var p = spawnProcess(cmd);
p.on("exit", function (status) {
if (status) {
cb(new Error("Process exited with code " + status));
}
else {
cb();
}
});
}
function runTests(taskConfigsFolder, run, options, cb) {
var configFiles = fs.readdirSync(taskConfigsFolder);
var numPartitions = configFiles.length;
if (numPartitions <= 0) {
cb();
return;
}
console.log("Running tests on " + numPartitions + " threads...");
var partitions = Array(numPartitions);
var progressBars = new ProgressBars();
progressBars.enable();
var counter = numPartitions;
configFiles.forEach(runTestsInPartition);
function runTestsInPartition(file, index) {
var partition = {
file: path.join(taskConfigsFolder, file),
tests: 0,
passed: 0,
failed: 0,
completed: 0,
current: undefined,
start: undefined,
end: undefined,
failures: []
};
partitions[index] = partition;
// Set up the progress bar.
updateProgress(0);
// Start the background process.
var cmd = "mocha -t " + (options.testTimeout || 20000) + " -R tap --no-colors " + run + " --config='" + partition.file + "'";
var p = spawnProcess(cmd);
var rl = readline.createInterface({
input: p.stdout,
terminal: false
});
rl.on("line", onmessage);
p.on("exit", onexit)
function onmessage(line) {
if (partition.start === undefined) {
partition.start = Date.now();
}
var rangeMatch = tapRangePattern.exec(line);
if (rangeMatch) {
partition.tests = parseInt(rangeMatch[2]);
return;
}
var testMatch = tapTestPattern.exec(line);
if (testMatch) {
var test = {
result: testMatch[1],
id: parseInt(testMatch[2]),
name: testMatch[3],
output: []
};
partition.current = test;
partition.completed++;
if (test.result === "ok") {
partition.passed++;
}
else {
partition.failed++;
partition.failures.push(test);
}
var progress = partition.completed / partition.tests;
if (progress < 1) {
updateProgress(progress);
}
return;
}
var commentMatch = tapCommentPattern.exec(line);
if (commentMatch) {
switch (commentMatch[1]) {
case "tests":
partition.current = undefined;
partition.tests = parseInt(commentMatch[2]);
break;
case "pass":
partition.passed = parseInt(commentMatch[2]);
break;
case "fail":
partition.failed = parseInt(commentMatch[2]);
break;
}
return;
}
if (partition.current) {
partition.current.output.push(line);
}
}
function onexit() {
if (partition.end === undefined) {
partition.end = Date.now();
}
partition.duration = partition.end - partition.start;
var summaryColor = partition.failed ? "fail" : "green";
var summarySymbol = partition.failed ? Base.symbols.err : Base.symbols.ok;
var summaryTests = (partition.passed === partition.tests ? partition.passed : partition.passed + "/" + partition.tests) + " passing";
var summaryDuration = "(" + ms(partition.duration) + ")";
var savedUseColors = Base.useColors;
Base.useColors = !options.noColors;
var summary = color(summaryColor, summarySymbol + " " + summaryTests) + " " + color("light", summaryDuration);
Base.useColors = savedUseColors;
updateProgress(1, summary);
signal();
}
function updateProgress(percentComplete, title) {
var progressColor = "pending";
if (partition.failed) {
progressColor = "fail";
}
progressBars.update(
index,
percentComplete,
progressColor,
title
);
}
}
function signal() {
counter--;
if (counter <= 0) {
var failed = 0;
var reporter = new Base(),
stats = reporter.stats,
failures = reporter.failures;
var duration = 0;
for (var i = 0; i < numPartitions; i++) {
var partition = partitions[i];
stats.passes += partition.passed;
stats.failures += partition.failed;
stats.tests += partition.tests;
duration += partition.duration;
for (var j = 0; j < partition.failures.length; j++) {
var failure = partition.failures[j];
failures.push(makeMochaTest(failure));
}
}
stats.duration = duration;
progressBars.disable();
if (options.noColors) {
var savedUseColors = Base.useColors;
Base.useColors = false;
reporter.epilogue();
Base.useColors = savedUseColors;
}
else {
reporter.epilogue();
}
if (failed) {
return cb(new Error("Test failures reported: " + failed));
}
else {
return cb();
}
}
}
function makeMochaTest(test) {
return {
fullTitle: function() {
return test.name;
},
err: {
message: test.output[0],
stack: test.output.join(os.EOL)
}
};
}
}
function spawnProcess(cmd, options) {
var shell = process.platform === "win32" ? "cmd" : "/bin/sh";
var prefix = process.platform === "win32" ? "/c" : "-c";
return child_process.spawn(shell, [prefix, cmd], { windowsVerbatimArguments: true });
}
function ProgressBars(options) {
if (!options) options = {};
var open = options.open || '[';
var close = options.close || ']';
var complete = options.complete || '▬';
var incomplete = options.incomplete || Base.symbols.dot;
var maxWidth = Math.floor(Base.window.width * .30) - open.length - close.length - 2;
var width = minMax(options.width || maxWidth, 10, maxWidth);
this._options = {
open: open,
complete: complete,
incomplete: incomplete,
close: close,
width: width
};
this._progressBars = [];
this._lineCount = 0;
this._enabled = false;
}
ProgressBars.prototype = {
enable: function () {
if (!this._enabled) {
process.stdout.write(os.EOL);
this._enabled = true;
}
},
disable: function () {
if (this._enabled) {
process.stdout.write(os.EOL);
this._enabled = false;
}
},
update: function (index, percentComplete, color, title) {
percentComplete = minMax(percentComplete, 0, 1);
var progressBar = this._progressBars[index] || (this._progressBars[index] = { });
var width = this._options.width;
var n = Math.floor(width * percentComplete);
var i = width - n;
if (n === progressBar.lastN && title === progressBar.title && color === progressBar.progressColor) {
return;
}
progressBar.lastN = n;
progressBar.title = title;
progressBar.progressColor = color;
var progress = " ";
progress += this._color('progress', this._options.open);
progress += this._color(color, fill(this._options.complete, n));
progress += this._color('progress', fill(this._options.incomplete, i));
progress += this._color('progress', this._options.close);
if (title) {
progress += this._color('progress', ' ' + title);
}
if (progressBar.text !== progress) {
progressBar.text = progress;
this._render(index);
}
},
_render: function (index) {
if (!this._enabled || !isatty) {
return;
}
cursor.hide();
readline.moveCursor(process.stdout, -process.stdout.columns, -this._lineCount);
var lineCount = 0;
var numProgressBars = this._progressBars.length;
for (var i = 0; i < numProgressBars; i++) {
if (i === index) {
readline.clearLine(process.stdout, 1);
process.stdout.write(this._progressBars[i].text + os.EOL);
}
else {
readline.moveCursor(process.stdout, -process.stdout.columns, +1);
}
lineCount++;
}
this._lineCount = lineCount;
cursor.show();
},
_color: function (type, text) {
return type && !this._options.noColors ? color(type, text) : text;
}
};
function fill(ch, size) {
var s = "";
while (s.length < size) {
s += ch;
}
return s.length > size ? s.substr(0, size) : s;
}
function minMax(value, min, max) {
if (value < min) return min;
if (value > max) return max;
return value;
}