Function _parseArgs

test/tools/runner/metadata_ui.js:34–84

(args)

     * @param {any} args
     */
    var _parseArgs = function (args) {
      var testData = {};
      if (typeof args[0] !== 'string') {
        throw new Error('First argument must be a string.');
      }
      testData.title = args[0];
      if (args.length === 1) {
        // Only a title, to mark a pending test
        return testData;
      } else if (args.length === 2) {
        // No metadata, describe(title, fn), or metadata as an object, describe(title, obj)
        if (typeof args[1] === 'object') {
          if (args[1].metadata && typeof args[1].metadata === 'object') {
            testData.metadata = args[1].metadata;
            if (args[1].tests && typeof args[1].tests === 'function') {
              testData.fn = args[1].tests;
            } else if (args[1].test && typeof args[1].test === 'function') {
              testData.fn = args[1].test;
            } else {
              throw new Error(
                'If passing an object as the second parameter, it must be of the form { <object>, <function> }'
              );
            }
          } else {
            throw new Error(
              'If passing an object as the second parameter, it must be of the form { <object>, <function> }'
            );
          }
        } else if (typeof args[1] === 'function') {
          testData.fn = args[1];
        } else {
          throw new Error(
            'Incorrect usage. Parameters must be either "<string>, { <object>, <function> }" or "<string>, <function>"'
          );
        }
      } else if (args.length === 3) {
        // Metadata as a param: describe(title, meta, fn)
        if (args[1] && typeof args[1] === 'object' && args[2] && typeof args[2] === 'function') {
          testData.metadata = args[1];
          testData.fn = args[2];
        } else {
          throw new Error(
            'If passing three parameters, they must be of the form "<string>, <object>, <function>"'
          );
        }
      } else if (args.length > 3) {
        throw new Error('Too many arguments passed.');
      }

      return testData;
    };

    /**
     * Create new suite that can contain metadata