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#include "src/parser.h"
#include "gtest/gtest.h"
class ParserTest : public ::testing::Test {
};
TEST_F(ParserTest, BasicCalc) {
EXPECT_EQ(4, SimpleParser::calculate("2+2"));
EXPECT_EQ(0, SimpleParser::calculate("2-2"));
EXPECT_EQ(42, SimpleParser::calculate("21*2"));
EXPECT_EQ(21, SimpleParser::calculate("42/2"));
}
TEST_F(ParserTest, OperatorPriority) {
EXPECT_EQ(10, SimpleParser::calculate("2+2*4"));
EXPECT_EQ(4, SimpleParser::calculate("2+4/2"));
EXPECT_EQ(60, SimpleParser::calculate("100/5*3"));
EXPECT_EQ(60, SimpleParser::calculate("100*3/5"));
EXPECT_EQ(42, SimpleParser::calculate("5+10*4-3"));
EXPECT_EQ(17, SimpleParser::calculate("10+20/2-3"));
EXPECT_EQ(261, SimpleParser::calculate("5+2^8"));
EXPECT_EQ(32768, SimpleParser::calculate("2*2^16/4"));
EXPECT_EQ(32772, SimpleParser::calculate("2*2^16/4+4"));
}
TEST_F(ParserTest, BracketCalc) {
EXPECT_EQ(16, SimpleParser::calculate("(2+2)*4"));
EXPECT_EQ(10, SimpleParser::calculate("2+(2*4)"));
EXPECT_EQ(10, SimpleParser::calculate("(10-5)*(5-3)"));
EXPECT_EQ(4, SimpleParser::calculate("((((2))*((2))))"));
EXPECT_EQ(37, SimpleParser::calculate("(((5))*(((((3+2*2)))))+2)"));
EXPECT_EQ(6.25, SimpleParser::calculate("2.5*(2+3-(3/2+1))"));
}
TEST_F(ParserTest, ConstantCalc) {
SimpleParser::ConstantMap constants;
constants["pi"] = 3.1415926535;
constants["answer"] = 42;
constants["g"] = 9.81;
EXPECT_EQ(3.1415926535, SimpleParser::calculate("pi", &constants));
EXPECT_EQ(6.283185307, SimpleParser::calculate("2*pi*1", &constants));
EXPECT_EQ(0, SimpleParser::calculate("2*3*7-answer", &constants));
EXPECT_EQ(1347.58, SimpleParser::calculate("1/2*(g*(-1))*answer^2+10000", &constants));
}
int main(int argc, char **argv) {
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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