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Parser_unittest.cc
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Parser_unittest.cc
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#include <shogun/lib/DelimiterTokenizer.h>
#include <shogun/lib/SGVector.h>
#include <shogun/io/Parser.h>
#include <gtest/gtest.h>
using namespace shogun;
TEST(ParserTest, tokenization)
{
int32_t ntokens=5;
const char* text=" This is the ultimate test! ";
const char* tokens[]={"This", "is", "the", "ultimate", "test!"};
SGVector<char> cv(const_cast<char* >(text), 30, false);
CDelimiterTokenizer* tokenizer=new CDelimiterTokenizer();
tokenizer->init_for_whitespace();
tokenizer->set_skip_delimiters(true);
CParser* reader=new CParser(cv, tokenizer);
SGVector<char> token;
int32_t num_tokens=0;
while (reader->has_next())
{
token=reader->read_string();
EXPECT_EQ(strlen(tokens[num_tokens]), token.vlen);
for (int32_t i=0; i<token.vlen; i++)
{
EXPECT_EQ(tokens[num_tokens][i], token[i]);
}
num_tokens++;
}
EXPECT_EQ(num_tokens, ntokens);
SG_UNREF(reader);
SG_UNREF(tokenizer);
}
TEST(ParserTest, tokenization_reals)
{
int32_t ntokens=5;
const char* text="1.0, 1.1, 1.2, 1.3, 1.4\n";
float64_t tokens[]={1.0, 1.1, 1.2, 1.3, 1.4};
SGVector<char> cv(const_cast<char* >(text), 24, false);
CDelimiterTokenizer* tokenizer=new CDelimiterTokenizer();
tokenizer->delimiters[' ']=1;
tokenizer->delimiters[',']=1;
tokenizer->delimiters['\n']=1;
tokenizer->set_skip_delimiters(true);
CParser* reader=new CParser(cv, tokenizer);
float64_t tmp=0;
int32_t num_tokens=0;
while (reader->has_next())
{
tmp=reader->read_real();
EXPECT_EQ(tokens[num_tokens], tmp);
num_tokens++;
}
EXPECT_EQ(num_tokens, ntokens);
SG_UNREF(reader);
SG_UNREF(tokenizer);
}