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/*=========================================================================
Program: Visualization Toolkit
Module: TestStringToNumeric.cxx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/*-------------------------------------------------------------------------
Copyright 2008 Sandia Corporation.
Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#include "vtkDelimitedTextReader.h"
#include "vtkDoubleArray.h"
#include "vtkIntArray.h"
#include "vtkStringArray.h"
#include "vtkStringToNumeric.h"
#include "vtkTable.h"
#include "vtkTestUtilities.h"
#include "vtkMath.h"
#include "vtkNew.h"
namespace
{
int ArrayTypesTest(int argc, char* argv[])
{
char* file = vtkTestUtilities::ExpandDataFileName(argc, argv,
"Data/authors.csv");
vtkNew<vtkDelimitedTextReader> reader;
reader->SetFileName(file);
reader->SetHaveHeaders(true);
delete [] file;
vtkNew<vtkStringToNumeric> numeric;
numeric->SetInputConnection(reader->GetOutputPort());
numeric->Update();
vtkTable* table = vtkTable::SafeDownCast(numeric->GetOutput());
cerr << "Testing array types..." << endl;
int errors = 0;
if (!vtkStringArray::SafeDownCast(table->GetColumnByName("Author")))
{
cerr << "ERROR: Author array missing" << endl;
++errors;
}
if (!vtkStringArray::SafeDownCast(table->GetColumnByName("Affiliation")))
{
cerr << "ERROR: Affiliation array missing" << endl;
++errors;
}
if (!vtkStringArray::SafeDownCast(table->GetColumnByName("Alma Mater")))
{
cerr << "ERROR: Alma Mater array missing" << endl;
++errors;
}
if (!vtkStringArray::SafeDownCast(table->GetColumnByName("Categories")))
{
cerr << "ERROR: Categories array missing" << endl;
++errors;
}
if (!vtkIntArray::SafeDownCast(table->GetColumnByName("Age")))
{
cerr << "ERROR: Age array missing or not converted to int" << endl;
++errors;
}
else
{
vtkIntArray* age = vtkIntArray::SafeDownCast(table->GetColumnByName("Age"));
int sum = 0;
for (vtkIdType i = 0; i < age->GetNumberOfTuples(); i++)
{
sum += age->GetValue(i);
}
if (sum != 181)
{
cerr << "ERROR: Age sum is incorrect" << endl;
++errors;
}
}
if (!vtkDoubleArray::SafeDownCast(table->GetColumnByName("Coolness")))
{
cerr << "ERROR: Coolness array missing or not converted to double" << endl;
++errors;
}
else
{
vtkDoubleArray* cool = vtkDoubleArray::SafeDownCast(table->GetColumnByName("Coolness"));
double sum = 0;
for (vtkIdType i = 0; i < cool->GetNumberOfTuples(); i++)
{
sum += cool->GetValue(i);
}
double eps = 10e-8;
double diff = (2.35 > sum) ? (2.35 - sum) : (sum - 2.35);
if (diff > eps)
{
cerr << "ERROR: Coolness sum is incorrect" << endl;
++errors;
}
}
cerr << "Testing force double..." << endl;
numeric->ForceDoubleOn();
numeric->Update();
table = vtkTable::SafeDownCast(numeric->GetOutput());
if (!vtkDoubleArray::SafeDownCast(table->GetColumnByName("Age")))
{
cerr << "ERROR: Arrays should have been forced to double" << endl;
++errors;
}
return errors;
}
int WhitespaceAndEmptyCellsTest()
{
// Setup a table of string columns, which is to get converted to numeric
vtkNew<vtkTable> inputTable;
vtkNew<vtkStringArray> integerColumn;
integerColumn->SetName("IntegerColumn");
integerColumn->SetNumberOfTuples(2);
integerColumn->SetValue(0, " ");
integerColumn->SetValue(1, " 1 ");
vtkNew<vtkStringArray> doubleColumn;
doubleColumn->SetName("DoubleColumn");
doubleColumn->SetNumberOfTuples(2);
doubleColumn->SetValue(0, " ");
doubleColumn->SetValue(1, " 1.1 ");
inputTable->AddColumn(integerColumn.GetPointer());
inputTable->AddColumn(doubleColumn.GetPointer());
// Setup the vtkStringToNumeric which is under test
vtkNew<vtkStringToNumeric> numeric;
int const defaultIntValue = 100;
numeric->SetDefaultIntegerValue(defaultIntValue);
numeric->SetDefaultDoubleValue(vtkMath::Nan());
numeric->SetTrimWhitespacePriorToNumericConversion(true);
numeric->SetInputData(inputTable.GetPointer());
numeric->Update();
vtkTable* table = vtkTable::SafeDownCast(numeric->GetOutput());
table->Dump();
cerr << "Testing handling whitespace and empty cells..." << endl;
int errors = 0;
if (!vtkIntArray::SafeDownCast(table->GetColumnByName("IntegerColumn")))
{
cerr << "ERROR: IntegerColumn array missing or not converted to int" << endl;
++errors;
}
else
{
vtkIntArray* column =
vtkIntArray::SafeDownCast(table->GetColumnByName("IntegerColumn"));
if (defaultIntValue != column->GetValue(0))
{
cerr << "ERROR: Empty cell value is: " << column->GetValue(0)
<< ". Expected: " << defaultIntValue;
++errors;
}
if (1 != column->GetValue(1))
{
cerr << "ERROR: Cell with whitespace value is: "
<< column->GetValue(1) << ". Expected: 1";
++errors;
}
}
if (!vtkDoubleArray::SafeDownCast(table->GetColumnByName("DoubleColumn")))
{
cerr << "ERROR: DoubleColumn array missing or not converted to double"
<< endl;
++errors;
}
else
{
vtkDoubleArray* column =
vtkDoubleArray::SafeDownCast(table->GetColumnByName("DoubleColumn"));
if (!vtkMath::IsNan(column->GetValue(0)))
{
cerr << "ERROR: Empty cell value is: " << column->GetValue(0)
<< ". Expected: " << vtkMath::Nan();
++errors;
}
if (1.1 != column->GetValue(1))
{
cerr << "ERROR: Cell with whitespace value is: "
<< column->GetValue(1) << ". Expected: 1.1";
++errors;
}
}
return errors;
}
}
int TestStringToNumeric(int argc, char* argv[])
{
int errors = ArrayTypesTest(argc, argv);
errors += WhitespaceAndEmptyCellsTest();
cerr << "...done testing" << endl;
cerr << errors << " errors found." << endl;
return errors;
}
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