@Test
public void testGetExpressionVariableAsIntegerBlankValue()
{

    // Mock dependencies.
    Expression expression = mock(Expression.class);
    DelegateExecution execution = mock(DelegateExecution.class);
    when(expression.getValue(execution)).thenReturn(BLANK_TEXT);
    // Call the method under test.
    Integer result = activitiHelper.getExpressionVariableAsInteger(expression, execution, VARIABLE_NAME, NO_VARIABLE_REQUIRED);
    // Validate the result.
    assertNull(result);
}