ar/tests/runner.js

ar - Read Unix archive files.

var ar = require('../ar');
var fs = require('fs');
var path = require('path');
var util = require('util');
var glob = require('glob'), cwd = process.cwd();

process.chdir(__dirname);

function padNumber(num, length) {
    var numStr = "" + num;
    while (numStr.length < length) {
        numStr = "0" + numStr;
    }
    return numStr;
}

function appendDots(str, length) {
    while (str.length < length) {
        str = str + ".";
    }
    return str;
}

var Test = (function () {
    function Test(filename) {
        this.filename = filename;
    }
    Test.prototype.testFile = function (arFile, filePath) {
        var realFileContents = fs.readFileSync(filePath), arFileContents = arFile.fileData(), i;
        if (realFileContents.length !== arFileContents.length) {
            throw new Error("Archive file's length does not match file: " + arFileContents.length + " bytes vs " + realFileContents.length + " bytes.");
        }

        for (i = 0; i < arFileContents.length; i++) {
            if (arFileContents.readUInt8(i) !== realFileContents.readUInt8(i)) {
                throw new Error("Archive file and file differ at byte " + i + ".");
            }
        }
    };

    Test.prototype.testFiles = function () {
        var files = fs.readdirSync(this.dirPath), arFiles = this.archive.getFiles(), i, file, name, nameIdx;
        for (i = 0; i < arFiles.length; i++) {
            file = arFiles[i];
            name = file.name();
            nameIdx = files.indexOf(name);
            if (nameIdx === -1) {
                throw new Error("Archive file contains extraneous file \"" + name + "\".");
            }
            this.testFile(file, path.resolve(this.dirPath, name));

            files.splice(nameIdx, 1);
        }
        if (files.length > 0) {
            throw new Error("Archive file is missing the following files: " + files.toString());
        }
    };

    Test.prototype.run = function (testNumber, totalTests) {
        var dirName;

        util.print(appendDots([
            "[", padNumber(testNumber, 2), "/",
            padNumber(totalTests, 2), "] ",
            this.filename, " "].join(''), 76));
        try  {
            this.archive = new ar.Archive(fs.readFileSync(this.filename));
            dirName = path.basename(this.filename);

            dirName = dirName.substr(0, dirName.length - 2);

            if (dirName.indexOf('-') !== -1) {
                dirName = dirName.substr(0, dirName.indexOf('-'));
            }
            this.dirPath = path.resolve(path.dirname(this.filename), dirName);
            if (!fs.existsSync(this.dirPath)) {
                throw new Error("Cannot find test data in folder \"" + this.dirPath + "\"");
            }
            this.testFiles();
            util.print("..OK\n");
            return true;
        } catch (e) {
            util.print("FAIL\n");
            console.log("\t" + e);
            return false;
        }
    };
    return Test;
})();

var TestSuite = (function () {
    function TestSuite(filenames) {
        this.tests = [];
        var i;
        for (i = 0; i < filenames.length; i++) {
            this.tests.push(new Test(filenames[i]));
        }
    }
    TestSuite.prototype.run = function () {
        var i, length = this.tests.length, passed = 0;
        console.log("Running " + length + " tests...");
        for (i = 0; i < length; i++) {
            if (this.tests[i].run(i + 1, length))
                passed++;
        }
        console.log("Tests complete! " + passed + "/" + this.tests.length + " (" + ((passed / this.tests.length) * 100) + "%) passed.");
    };
    return TestSuite;
})();

glob("*.a", function (er, files) {
    if (er != null)
        throw er;
    (new TestSuite(files)).run();

    process.chdir(cwd);
});
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