mock.js
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var path = require('path');
var test = require('tape');
var resolve = require('../');
test('mock', function (t) {
t.plan(8);
var files = {};
files[path.resolve('/foo/bar/baz.js')] = 'beep';
var dirs = {};
dirs[path.resolve('/foo/bar')] = true;
function opts(basedir) {
return {
basedir: path.resolve(basedir),
isFile: function (file, cb) {
cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
},
isDirectory: function (dir, cb) {
cb(null, !!dirs[path.resolve(dir)]);
},
readFile: function (file, cb) {
cb(null, files[path.resolve(file)]);
},
realpath: function (file, cb) {
cb(null, file);
}
};
}
resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/bar/baz.js'));
t.equal(pkg, undefined);
});
resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/bar/baz.js'));
t.equal(pkg, undefined);
});
resolve('baz', opts('/foo/bar'), function (err, res) {
t.equal(err.message, "Cannot find module 'baz' from '" + path.resolve('/foo/bar') + "'");
t.equal(err.code, 'MODULE_NOT_FOUND');
});
resolve('../baz', opts('/foo/bar'), function (err, res) {
t.equal(err.message, "Cannot find module '../baz' from '" + path.resolve('/foo/bar') + "'");
t.equal(err.code, 'MODULE_NOT_FOUND');
});
});
test('mock from package', function (t) {
t.plan(8);
var files = {};
files[path.resolve('/foo/bar/baz.js')] = 'beep';
var dirs = {};
dirs[path.resolve('/foo/bar')] = true;
function opts(basedir) {
return {
basedir: path.resolve(basedir),
isFile: function (file, cb) {
cb(null, Object.prototype.hasOwnProperty.call(files, file));
},
isDirectory: function (dir, cb) {
cb(null, !!dirs[path.resolve(dir)]);
},
'package': { main: 'bar' },
readFile: function (file, cb) {
cb(null, files[file]);
},
realpath: function (file, cb) {
cb(null, file);
}
};
}
resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/bar/baz.js'));
t.equal(pkg && pkg.main, 'bar');
});
resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/bar/baz.js'));
t.equal(pkg && pkg.main, 'bar');
});
resolve('baz', opts('/foo/bar'), function (err, res) {
t.equal(err.message, "Cannot find module 'baz' from '" + path.resolve('/foo/bar') + "'");
t.equal(err.code, 'MODULE_NOT_FOUND');
});
resolve('../baz', opts('/foo/bar'), function (err, res) {
t.equal(err.message, "Cannot find module '../baz' from '" + path.resolve('/foo/bar') + "'");
t.equal(err.code, 'MODULE_NOT_FOUND');
});
});
test('mock package', function (t) {
t.plan(2);
var files = {};
files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
main: './baz.js'
});
var dirs = {};
dirs[path.resolve('/foo')] = true;
dirs[path.resolve('/foo/node_modules')] = true;
function opts(basedir) {
return {
basedir: path.resolve(basedir),
isFile: function (file, cb) {
cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
},
isDirectory: function (dir, cb) {
cb(null, !!dirs[path.resolve(dir)]);
},
readFile: function (file, cb) {
cb(null, files[path.resolve(file)]);
},
realpath: function (file, cb) {
cb(null, file);
}
};
}
resolve('bar', opts('/foo'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
t.equal(pkg && pkg.main, './baz.js');
});
});
test('mock package from package', function (t) {
t.plan(2);
var files = {};
files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
main: './baz.js'
});
var dirs = {};
dirs[path.resolve('/foo')] = true;
dirs[path.resolve('/foo/node_modules')] = true;
function opts(basedir) {
return {
basedir: path.resolve(basedir),
isFile: function (file, cb) {
cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
},
isDirectory: function (dir, cb) {
cb(null, !!dirs[path.resolve(dir)]);
},
'package': { main: 'bar' },
readFile: function (file, cb) {
cb(null, files[path.resolve(file)]);
},
realpath: function (file, cb) {
cb(null, file);
}
};
}
resolve('bar', opts('/foo'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
t.equal(pkg && pkg.main, './baz.js');
});
});
test('symlinked', function (t) {
t.plan(4);
var files = {};
files[path.resolve('/foo/bar/baz.js')] = 'beep';
files[path.resolve('/foo/bar/symlinked/baz.js')] = 'beep';
var dirs = {};
dirs[path.resolve('/foo/bar')] = true;
dirs[path.resolve('/foo/bar/symlinked')] = true;
function opts(basedir) {
return {
preserveSymlinks: false,
basedir: path.resolve(basedir),
isFile: function (file, cb) {
cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
},
isDirectory: function (dir, cb) {
cb(null, !!dirs[path.resolve(dir)]);
},
readFile: function (file, cb) {
cb(null, files[path.resolve(file)]);
},
realpath: function (file, cb) {
var resolved = path.resolve(file);
if (resolved.indexOf('symlinked') >= 0) {
cb(null, resolved);
return;
}
var ext = path.extname(resolved);
if (ext) {
var dir = path.dirname(resolved);
var base = path.basename(resolved);
cb(null, path.join(dir, 'symlinked', base));
} else {
cb(null, path.join(resolved, 'symlinked'));
}
}
};
}
resolve('./baz', opts('/foo/bar'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/bar/symlinked/baz.js'));
t.equal(pkg, undefined);
});
resolve('./baz.js', opts('/foo/bar'), function (err, res, pkg) {
if (err) return t.fail(err);
t.equal(res, path.resolve('/foo/bar/symlinked/baz.js'));
t.equal(pkg, undefined);
});
});
test('readPackage', function (t) {
t.plan(3);
var files = {};
files[path.resolve('/foo/node_modules/bar/something-else.js')] = 'beep';
files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
main: './baz.js'
});
files[path.resolve('/foo/node_modules/bar/baz.js')] = 'boop';
var dirs = {};
dirs[path.resolve('/foo')] = true;
dirs[path.resolve('/foo/node_modules')] = true;
function opts(basedir) {
return {
basedir: path.resolve(basedir),
isFile: function (file, cb) {
cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
},
isDirectory: function (dir, cb) {
cb(null, !!dirs[path.resolve(dir)]);
},
'package': { main: 'bar' },
readFile: function (file, cb) {
cb(null, files[path.resolve(file)]);
},
realpath: function (file, cb) {
cb(null, file);
}
};
}
t.test('with readFile', function (st) {
st.plan(3);
resolve('bar', opts('/foo'), function (err, res, pkg) {
st.error(err);
st.equal(res, path.resolve('/foo/node_modules/bar/baz.js'));
st.equal(pkg && pkg.main, './baz.js');
});
});
var readPackage = function (readFile, file, cb) {
var barPackage = path.join('bar', 'package.json');
if (file.slice(-barPackage.length) === barPackage) {
cb(null, { main: './something-else.js' });
} else {
cb(null, JSON.parse(files[path.resolve(file)]));
}
};
t.test('with readPackage', function (st) {
st.plan(3);
var options = opts('/foo');
delete options.readFile;
options.readPackage = readPackage;
resolve('bar', options, function (err, res, pkg) {
st.error(err);
st.equal(res, path.resolve('/foo/node_modules/bar/something-else.js'));
st.equal(pkg && pkg.main, './something-else.js');
});
});
t.test('with readFile and readPackage', function (st) {
st.plan(1);
var options = opts('/foo');
options.readPackage = readPackage;
resolve('bar', options, function (err) {
st.throws(function () { throw err; }, TypeError, 'errors when both readFile and readPackage are provided');
});
});
});