private static Double getOperand(EditText operandEditText) {
        String operandText = getOperandText(operandEditText);
        return Double.valueOf(operandText);
    }
@return the operand value which was entered in an {@link EditText} as a double
runner/AndroidTestOrchestratorWithTestCoverageSample/app/src/main/java/com/example/android/testing/androidtestorchestratorsample/CalculatorActivity.java