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/*
SCAENEA IDL Compiler (scidlc)
Copyright (C) 2014 Andreas Stöckel
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string>
#include <iostream>
#include "gtest/gtest.h"
#include <core/BufferedCharReader.hpp>
namespace ousia{
TEST(BufferedCharReaderTest, SimpleReadTest)
{
std::string testStr{"this is a test"};
char c;
// Feed a test string into the reader
BufferedCharReader reader{testStr};
// Try to read the test string
std::string res;
while (!reader.atEnd()) {
ASSERT_TRUE(reader.read(&c));
res.append(&c, 1);
}
// The two strings must equal
ASSERT_STREQ(testStr.c_str(), res.c_str()) ;
// We must now be at line 1, column 15
ASSERT_EQ(1, reader.getLine());
ASSERT_EQ(testStr.size() + 1, reader.getColumn());
// If we call either read or peek, false is returned
ASSERT_FALSE(reader.read(&c));
ASSERT_FALSE(reader.peek(&c));
}
TEST(BufferedCharReaderTest, SimplePeekTest)
{
std::string testStr{"this is a test"};
char c;
// Feed a test string into the reader
BufferedCharReader reader{testStr};
// Try to read the test string
std::string res;
while (reader.peek(&c)) {
res.append(&c, 1);
}
// Peeking does not trigger the "atEnd" flag
ASSERT_FALSE(reader.atEnd());
// The two strings must equal
ASSERT_STREQ(testStr.c_str(), res.c_str());
// We must now be at line 1, column 1 and NOT at the end of the stream
ASSERT_EQ(1, reader.getLine());
ASSERT_EQ(1, reader.getColumn());
ASSERT_FALSE(reader.atEnd());
// If we consume the peek, we must be at line 1, column 15 and we should be
// at the end of the stream
reader.consumePeek();
ASSERT_EQ(1, reader.getLine());
ASSERT_EQ(testStr.size() + 1, reader.getColumn());
ASSERT_TRUE(reader.atEnd());
// If we call either read or peek, false is returned
ASSERT_FALSE(reader.read(&c));
ASSERT_FALSE(reader.peek(&c));
}
TEST(BufferedCharReaderTest, SplittedPeakTest)
{
std::string testStr{"this is a test"};
char c;
// Feed a test string into the reader
BufferedCharReader reader;
// Try to peek the test string, feed char after char into the reader
std::string res;
for (unsigned int i = 0; i < testStr.length(); i++) {
reader.feed(std::string(&testStr[i], 1));
while (reader.peek(&c)) {
res.append(&c, 1);
}
}
reader.close();
// Consume the peeked data
ASSERT_FALSE(reader.atEnd());
reader.consumePeek();
ASSERT_TRUE(reader.atEnd());
// The two strings must equal
ASSERT_STREQ(testStr.c_str(), res.c_str()) ;
// We must now be at line 1, column 15
ASSERT_EQ(1, reader.getLine());
ASSERT_EQ(testStr.size() + 1, reader.getColumn());
// If we call either read or peek, false is returned
ASSERT_FALSE(reader.read(&c));
ASSERT_FALSE(reader.peek(&c));
}
TEST(BufferedCharReaderTest, RowColumnCounterTest)
{
// Feed a test string into the reader
BufferedCharReader reader{"1\n\r2\n3\r\n\n4"};
// We should currently be in line 1, column 1
ASSERT_EQ(1, reader.getLine());
ASSERT_EQ(1, reader.getColumn());
// Read two characters
char c;
for (int i = 0; i < 2; i++) reader.read(&c);
ASSERT_EQ(2, reader.getLine());
ASSERT_EQ(1, reader.getColumn());
// Read two characters
for (int i = 0; i < 2; i++) reader.read(&c);
ASSERT_EQ(3, reader.getLine());
ASSERT_EQ(1, reader.getColumn());
// Read three characters
for (int i = 0; i < 3; i++) reader.read(&c);
ASSERT_EQ(5, reader.getLine());
ASSERT_EQ(1, reader.getColumn());
}
TEST(BufferedCharReaderTest, LinebreakSubstitutionTest)
{
// Feed a test string into the reader
BufferedCharReader reader{"this\n\ris\n\rjust\na test\r\n\rtest\n\r"};
// Read all characters from the test string
std::string res;
char c;
while (reader.read(&c)) {
res.append(&c, 1);
}
// Test for equality
ASSERT_STREQ("this\nis\njust\na test\n\ntest\n", res.c_str());
}
TEST(BufferedCharReaderTest, RowColumnCounterUTF8Test)
{
// Feed a test string with some umlauts into the reader
BufferedCharReader reader{"\x61\xc3\x96\xc3\x84\xc3\x9c\xc3\x9f"};
// Read all bytes
char c;
while (reader.read(&c));
// The sequence above equals 5 UTF-8 characters (so after reading all the
// cursor is at position 6)
ASSERT_EQ(1, reader.getLine());
ASSERT_EQ(6, reader.getColumn());
}
}
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