assertTrue(expressionResult) {
    if (expressionResult !== true) {
      throw new AssertionError('assertTrue failed for the following object: '
        + util.inspect(expressionResult, { showHidden: true, depth: 2 }));
    }
  }
/**
   * Asserts that the given boolean expression result is true
   * @param  {Boolean} expressionResult the result of a boolean expression calculation, true ot false
   * @throws AssertionError
   */
Asserts that the given boolean expression result is true
@param  {Boolean} expressionResult the result of a boolean expression calculation, true ot false
@throws AssertionError
Asserts that the given boolean expression result is true @param { Boolean } expressionResult the result of a boolean expression calculation true ot false @throws AssertionError
assertTrue(expressionResult) {
    if (expressionResult !== true) {
      throw new AssertionError('assertTrue failed for the following object: '
        + util.inspect(expressionResult, { showHidden: true, depth: 2 }));
    }
  }
assertTrue ( expressionResult ) { if ( expressionResult !== true ) { throw new AssertionError ( 'assertTrue failed for the following object: ' + util . inspect ( expressionResult , { showHidden : true , depth : 2 } ) ) ; } }
Asserts that the given boolean expression result is true
 @param  {Boolean} expressionResult the result of a boolean expression calculation, true ot false
 @throws AssertionError
Asserts that the given boolean expression result is true @param { Boolean } expressionResult the result of a boolean expression calculation true ot false @throws AssertionError