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node_modules/resolve/test/mock.js 4.41 KB
aaac7fed   liuqimichale   add
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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';
  
      function opts(basedir) {
          return {
              basedir: path.resolve(basedir),
              isFile: function (file, cb) {
                  cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
              },
              readFile: function (file, cb) {
                  cb(null, files[path.resolve(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';
  
      function opts(basedir) {
          return {
              basedir: path.resolve(basedir),
              isFile: function (file, cb) {
                  cb(null, Object.prototype.hasOwnProperty.call(files, file));
              },
              'package': { main: 'bar' },
              readFile: function (file, cb) {
                  cb(null, files[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'
      });
  
      function opts(basedir) {
          return {
              basedir: path.resolve(basedir),
              isFile: function (file, cb) {
                  cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
              },
              readFile: function (file, cb) {
                  cb(null, files[path.resolve(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'
      });
  
      function opts(basedir) {
          return {
              basedir: path.resolve(basedir),
              isFile: function (file, cb) {
                  cb(null, Object.prototype.hasOwnProperty.call(files, path.resolve(file)));
              },
              'package': { main: 'bar' },
              readFile: function (file, cb) {
                  cb(null, files[path.resolve(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');
      });
  });