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plasp/tests/TestUtils.cpp

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#include <gtest/gtest.h>
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#include <plasp/utils/IO.h>
#include <plasp/utils/Parser.h>
#include <plasp/utils/ParserException.h>
////////////////////////////////////////////////////////////////////////////////////////////////////
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TEST(UtilsTests, ParserParse)
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{
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std::stringstream s(" identifier 5 \n-51\t 0 1 100 200 -300 -400");
plasp::utils::Parser<> p("input", s);
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ASSERT_EQ(p.parse<std::string>(), "identifier");
ASSERT_EQ(p.parse<size_t>(), 5u);
ASSERT_EQ(p.parse<int>(), -51);
ASSERT_EQ(p.parse<bool>(), false);
ASSERT_EQ(p.parse<bool>(), true);
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ASSERT_EQ(p.parse<int>(), 100);
ASSERT_EQ(p.parse<size_t>(), 200u);
ASSERT_EQ(p.parse<int>(), -300);
ASSERT_THROW(p.parse<size_t>(), plasp::utils::ParserException);
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}
////////////////////////////////////////////////////////////////////////////////////////////////////
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TEST(UtilsTests, ParserExpect)
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{
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std::stringstream s(" identifier 5 \n-51\t 0 1 100 200 -300 -400");
plasp::utils::Parser<> p("input", s);
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ASSERT_NO_THROW(p.expect<std::string>("identifier"));
ASSERT_NO_THROW(p.expect<size_t>(5u));
ASSERT_NO_THROW(p.expect<int>(-51));
ASSERT_NO_THROW(p.expect<bool>(false));
ASSERT_NO_THROW(p.expect<bool>(true));
ASSERT_NO_THROW(p.expect<int>(100));
ASSERT_NO_THROW(p.expect<size_t>(200u));
ASSERT_NO_THROW(p.expect<int>(-300));
ASSERT_THROW(p.expect<size_t>(-400), plasp::utils::ParserException);
p.seek(0);
ASSERT_THROW(p.expect<std::string>("error"), plasp::utils::ParserException);
p.seek(14);
ASSERT_THROW(p.expect<size_t>(6u), plasp::utils::ParserException);
p.seek(17);
ASSERT_THROW(p.expect<int>(-50), plasp::utils::ParserException);
p.seek(24);
ASSERT_THROW(p.expect<bool>(true), plasp::utils::ParserException);
p.seek(26);
ASSERT_THROW(p.expect<bool>(false), plasp::utils::ParserException);
p.seek(28);
ASSERT_THROW(p.expect<int>(101), plasp::utils::ParserException);
p.seek(31);
ASSERT_THROW(p.expect<size_t>(201), plasp::utils::ParserException);
p.seek(34);
ASSERT_THROW(p.expect<int>(-299), plasp::utils::ParserException);
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}
////////////////////////////////////////////////////////////////////////////////////////////////////
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TEST(UtilsTests, ParserTest)
{
std::stringstream s(" identifier 5 \n-51\t 0 1");
plasp::utils::Parser<> p("input", s);
plasp::utils::Parser<>::Position pos;
pos = p.position();
ASSERT_EQ(p.testAndReturn<std::string>("error"), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndReturn<std::string>("identifier"), true);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<std::string>("error"), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<std::string>("identifier"), true);
ASSERT_EQ(p.position(), 12);
pos = p.position();
ASSERT_EQ(p.testAndReturn<size_t>(6u), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndReturn<size_t>(5u), true);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<size_t>(6u), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<size_t>(5u), true);
ASSERT_EQ(p.position(), 15);
pos = p.position();
ASSERT_EQ(p.testAndReturn<int>(-50), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndReturn<int>(-51), true);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<int>(-50), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<int>(-51), true);
ASSERT_EQ(p.position(), 22);
pos = p.position();
ASSERT_EQ(p.testAndReturn<bool>(true), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndReturn<bool>(false), true);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<bool>(true), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<bool>(false), true);
ASSERT_EQ(p.position(), 25);
pos = p.position();
ASSERT_EQ(p.testAndReturn<bool>(false), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndReturn<bool>(true), true);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<bool>(false), false);
ASSERT_EQ(p.position(), pos);
ASSERT_EQ(p.testAndSkip<bool>(true), true);
ASSERT_EQ(p.position(), 27);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
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TEST(UtilsTests, ParseEndOfFile)
{
std::stringstream s1("test");
plasp::utils::Parser<> p1("input", s1);
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ASSERT_NO_THROW(p1.expect<std::string>("test"));
ASSERT_THROW(p1.parse<std::string>(), plasp::utils::ParserException);
std::stringstream s2("test1 test2 test3");
plasp::utils::Parser<> p2("input", s2);
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ASSERT_NO_THROW(p2.expect<std::string>("test1"));
ASSERT_NO_THROW(p2.expect<std::string>("test2"));
ASSERT_NO_THROW(p2.expect<std::string>("test3"));
ASSERT_THROW(p2.parse<std::string>(), plasp::utils::ParserException);
std::stringstream s3("-127");
plasp::utils::Parser<> p3("input", s3);
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p3.expect<int>(-127);
ASSERT_THROW(p3.parse<int>(), plasp::utils::ParserException);
std::stringstream s4("128 -1023 -4095");
plasp::utils::Parser<> p4("input", s4);
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ASSERT_NO_THROW(p4.expect<size_t>(128));
ASSERT_NO_THROW(p4.expect<int>(-1023));
ASSERT_NO_THROW(p4.expect<int>(-4095));
ASSERT_THROW(p4.parse<int>(), plasp::utils::ParserException);
std::stringstream s5("0");
plasp::utils::Parser<> p5("input", s5);
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p5.expect<bool>(false);
ASSERT_THROW(p5.parse<bool>(), plasp::utils::ParserException);
std::stringstream s6("0 1 0");
plasp::utils::Parser<> p6("input", s6);
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ASSERT_NO_THROW(p6.expect<bool>(false));
ASSERT_NO_THROW(p6.expect<bool>(true));
ASSERT_NO_THROW(p6.expect<bool>(false));
ASSERT_THROW(p6.parse<bool>(), plasp::utils::ParserException);
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}
////////////////////////////////////////////////////////////////////////////////////////////////////
TEST(UtilsTests, ParserPosition)
{
std::stringstream s("123 \n4\ntest1\n test2\ntest3 \ntest4\n\n\n\n");
plasp::utils::Parser<> p("input", s);
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const auto startPosition = p.position();
plasp::utils::StreamCoordinate c;
c = p.coordinate();
ASSERT_EQ(c.row, 1u);
ASSERT_EQ(c.column, 1u);
ASSERT_EQ(p.currentCharacter(), '1');
ASSERT_NO_THROW(p.advance());
c = p.coordinate();
ASSERT_EQ(c.row, 1u);
ASSERT_EQ(c.column, 2u);
ASSERT_EQ(p.currentCharacter(), '2');
ASSERT_NO_THROW(p.advance());
c = p.coordinate();
ASSERT_EQ(c.row, 1u);
ASSERT_EQ(c.column, 3u);
ASSERT_EQ(p.currentCharacter(), '3');
ASSERT_NO_THROW(p.advance());
c = p.coordinate();
ASSERT_EQ(c.row, 1u);
ASSERT_EQ(c.column, 4u);
ASSERT_EQ(p.currentCharacter(), ' ');
ASSERT_NO_THROW(p.advance());
c = p.coordinate();
ASSERT_EQ(c.row, 1u);
ASSERT_EQ(c.column, 5u);
ASSERT_EQ(p.currentCharacter(), '\n');
ASSERT_NO_THROW(p.advance());
c = p.coordinate();
ASSERT_EQ(c.row, 2u);
ASSERT_EQ(c.column, 1u);
ASSERT_EQ(p.currentCharacter(), '4');
ASSERT_NO_THROW(p.advance());
ASSERT_NO_THROW(p.expect<std::string>("test1"));
c = p.coordinate();
ASSERT_EQ(c.row, 3u);
ASSERT_EQ(c.column, 6u);
ASSERT_NO_THROW(p.expect<std::string>("test2"));
c = p.coordinate();
ASSERT_EQ(c.row, 4u);
ASSERT_EQ(c.column, 7u);
ASSERT_NO_THROW(p.expect<std::string>("test3"));
c = p.coordinate();
ASSERT_EQ(c.row, 5u);
ASSERT_EQ(c.column, 6u);
ASSERT_NO_THROW(p.skipLine());
c = p.coordinate();
ASSERT_EQ(c.row, 6u);
ASSERT_EQ(c.column, 1u);
ASSERT_NO_THROW(p.skipLine());
c = p.coordinate();
ASSERT_EQ(c.row, 7u);
ASSERT_EQ(c.column, 1u);
ASSERT_NO_THROW(p.skipWhiteSpace());
c = p.coordinate();
ASSERT_EQ(c.row, 10u);
ASSERT_EQ(c.column, 1u);
ASSERT_TRUE(p.atEnd());
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p.reset();
ASSERT_EQ(p.position(), startPosition);
ASSERT_FALSE(p.atEnd());
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for (size_t i = 0; i < 5; i++)
p.advance();
ASSERT_EQ(p.position(), static_cast<std::istream::pos_type>(5));
p.seek(static_cast<std::istream::pos_type>(7));
ASSERT_EQ(p.position(), static_cast<std::istream::pos_type>(7));
ASSERT_NO_THROW(p.expect<std::string>("test1"));
// TODO: test parser with multiple sections
}
////////////////////////////////////////////////////////////////////////////////////////////////////
TEST(UtilsTests, ParserRemoveComments)
{
std::stringstream s1("; comment at beginning\ntest1; comment in between\ntest2; comment at end");
plasp::utils::Parser<> p1("input", s1);
p1.removeComments(";", "\n", false);
plasp::utils::StreamCoordinate c;
ASSERT_NO_THROW(p1.expect<std::string>("test1"));
c = p1.coordinate();
ASSERT_EQ(c.row, 2u);
ASSERT_EQ(c.column, 6u);
ASSERT_NO_THROW(p1.expect<std::string>("test2"));
c = p1.coordinate();
ASSERT_EQ(c.row, 3u);
ASSERT_EQ(c.column, 6u);
p1.skipWhiteSpace();
ASSERT_TRUE(p1.atEnd());
std::stringstream s2("test;");
plasp::utils::Parser<> p2("input", s2);
p2.removeComments(";", "\n", false);
ASSERT_NO_THROW(p2.expect<std::string>("test"));
p2.skipWhiteSpace();
ASSERT_TRUE(p2.atEnd());
std::stringstream s3("/* comment at start */ test1 /* comment in between */ test2 /*");
plasp::utils::Parser<> p3("input", s3);
p3.removeComments("/*", "*/", true);
ASSERT_NO_THROW(p3.expect<std::string>("test1"));
ASSERT_NO_THROW(p3.expect<std::string>("test2"));
p3.skipWhiteSpace();
ASSERT_TRUE(p3.atEnd());
}
////////////////////////////////////////////////////////////////////////////////////////////////////
TEST(UtilsTests, EscapeASP)
{
const std::string predicate = "action(stack_on(block-1, block-2, value@3, value@4))";
const auto escaped = plasp::utils::escapeASP(predicate);
const auto unescaped = plasp::utils::unescapeASP(escaped);
ASSERT_EQ(escaped.find("-"), std::string::npos);
ASSERT_EQ(escaped.find("@"), std::string::npos);
ASSERT_EQ(predicate, unescaped);
}