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var test = require('tape');
var path = require('path');
var parse = path.parse || require('path-parse');
var keys = require('object-keys');
var nodeModulesPaths = require('../lib/node-modules-paths');
var verifyDirs = function verifyDirs(t, start, dirs, moduleDirectories, paths) {
var moduleDirs = [].concat(moduleDirectories || 'node_modules');
if (paths) {
for (var k = 0; k < paths.length; ++k) {
moduleDirs.push(path.basename(paths[k]));
}
}
var foundModuleDirs = {};
var uniqueDirs = {};
var parsedDirs = {};
for (var i = 0; i < dirs.length; ++i) {
var parsed = parse(dirs[i]);
if (!foundModuleDirs[parsed.base]) { foundModuleDirs[parsed.base] = 0; }
foundModuleDirs[parsed.base] += 1;
parsedDirs[parsed.dir] = true;
uniqueDirs[dirs[i]] = true;
}
t.equal(keys(parsedDirs).length >= start.split(path.sep).length, true, 'there are >= dirs than "start" has');
var foundModuleDirNames = keys(foundModuleDirs);
t.deepEqual(foundModuleDirNames, moduleDirs, 'all desired module dirs were found');
t.equal(keys(uniqueDirs).length, dirs.length, 'all dirs provided were unique');
var counts = {};
for (var j = 0; j < foundModuleDirNames.length; ++j) {
counts[foundModuleDirs[j]] = true;
}
t.equal(keys(counts).length, 1, 'all found module directories had the same count');
};
test('node-modules-paths', function (t) {
t.test('no options', function (t) {
var start = path.join(__dirname, 'resolver');
var dirs = nodeModulesPaths(start);
verifyDirs(t, start, dirs);
t.end();
});
t.test('empty options', function (t) {
var start = path.join(__dirname, 'resolver');
var dirs = nodeModulesPaths(start, {});
verifyDirs(t, start, dirs);
t.end();
});
t.test('with paths=array option', function (t) {
var start = path.join(__dirname, 'resolver');
var paths = ['a', 'b'];
var dirs = nodeModulesPaths(start, { paths: paths });
verifyDirs(t, start, dirs, null, paths);
t.end();
});
t.test('with paths=function option', function (t) {
var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
return getNodeModulesDirs().concat(path.join(absoluteStart, 'not node modules', request));
};
var start = path.join(__dirname, 'resolver');
var dirs = nodeModulesPaths(start, { paths: paths }, 'pkg');
verifyDirs(t, start, dirs, null, [path.join(start, 'not node modules', 'pkg')]);
t.end();
});
t.test('with paths=function skipping node modules resolution', function (t) {
var paths = function paths(request, absoluteStart, getNodeModulesDirs, opts) {
return [];
};
var start = path.join(__dirname, 'resolver');
var dirs = nodeModulesPaths(start, { paths: paths });
t.deepEqual(dirs, [], 'no node_modules was computed');
t.end();
});
t.test('with moduleDirectory option', function (t) {
var start = path.join(__dirname, 'resolver');
var moduleDirectory = 'not node modules';
var dirs = nodeModulesPaths(start, { moduleDirectory: moduleDirectory });
verifyDirs(t, start, dirs, moduleDirectory);
t.end();
});
t.test('with 1 moduleDirectory and paths options', function (t) {
var start = path.join(__dirname, 'resolver');
var paths = ['a', 'b'];
var moduleDirectory = 'not node modules';
var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectory });
verifyDirs(t, start, dirs, moduleDirectory, paths);
t.end();
});
t.test('with 1+ moduleDirectory and paths options', function (t) {
var start = path.join(__dirname, 'resolver');
var paths = ['a', 'b'];
var moduleDirectories = ['not node modules', 'other modules'];
var dirs = nodeModulesPaths(start, { paths: paths, moduleDirectory: moduleDirectories });
verifyDirs(t, start, dirs, moduleDirectories, paths);
t.end();
});
});
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