Files
tyche/src/vm/tests.cc
2026-05-02 20:12:15 -05:00

293 lines
8.3 KiB
C++

#include "gtest/gtest.h"
#include "../bytecode/bytecodeprototype.hh"
#include "../bytecode/bytecode.hh"
#include "../assembler/assembler.hh"
#include "code.hh"
#include "stack.hh"
#include "vm.hh"
using namespace tyche;
using namespace tyche::bc;
using namespace tyche::vm;
static VM run(std::string oper) {
return VM().load_bytecode(as::Assembler(std::format(R"(
.const
0: 3.14
1: "Hello world"
.func 0
{}
ret
)", oper)).assemble()).call(0);
}
TEST(Code, ImportSingleAndDebug)
{
BytecodePrototype bp;
bp.constants.emplace_back(3.14f);
bp.constants.emplace_back("HELLO");
bp.functions.emplace_back(0, 0);
bp.functions.at(0).code.append_byte(0xa0); // pushi
bp.functions.at(0).code.append_int8(42);
bp.functions.emplace_back(2, 1);
bp.functions.at(1).code.append_byte(0x1a); // appnd
ByteArray ba = Bytecode::generate(bp);
Code code;
code.import_bytecode(std::move(ba));
printf("%s\n", code.disassemble().c_str());
}
TEST(Stack, PushPullGet)
{
Stack stack;
stack.push(Value::createInteger(10));
stack.push(Value::createInteger(20));
stack.push(Value::createInteger(30));
ASSERT_EQ(stack.size(), 3);
ASSERT_EQ(stack.at(0).as_integer(), 10);
ASSERT_EQ(stack.at(1).as_integer(), 20);
ASSERT_EQ(stack.at(-1).as_integer(), 30);
ASSERT_EQ(stack.at(-2).as_integer(), 20);
}
TEST(Stack, FramePointer)
{
Stack stack;
stack.push(Value::createInteger(10));
stack.push(Value::createInteger(20));
stack.push_fp();
stack.push(Value::createInteger(30));
stack.push(Value::createInteger(40));
stack.push(Value::createInteger(50));
ASSERT_EQ(stack.size(), 3);
ASSERT_EQ(stack.at(0).as_integer(), 30);
ASSERT_EQ(stack.at(1).as_integer(), 40);
ASSERT_EQ(stack.at(-1).as_integer(), 50);
ASSERT_EQ(stack.at(-2).as_integer(), 40);
stack.pop_fp();
ASSERT_EQ(stack.size(), 2);
ASSERT_EQ(stack.at(0).as_integer(), 10);
ASSERT_EQ(stack.at(1).as_integer(), 20);
ASSERT_EQ(stack.at(-1).as_integer(), 20);
ASSERT_EQ(stack.at(-2).as_integer(), 10);
}
TEST(VM, BasicCode)
{
// code (2+3)
BytecodePrototype bp;
bp.functions.emplace_back(0, 0);
bp.functions.at(0).code.append_byte((uint8_t) Instruction::PushInt8);
bp.functions.at(0).code.append_int8(2);
bp.functions.at(0).code.append_byte((uint8_t) Instruction::PushInt8);
bp.functions.at(0).code.append_int8(3);
bp.functions.at(0).code.append_byte((uint8_t) Instruction::Sum);
bp.functions.at(0).code.append_byte((uint8_t) Instruction::Return);
ByteArray ba = Bytecode::generate(bp);
VM vm;
vm.load_bytecode(std::move(ba));
vm.call(0);
int32_t result = vm.to_integer(-1);
ASSERT_EQ(result, 5);
}
TEST(VM, StackOperations)
{
ASSERT_EQ(run("pushi 5000").to_integer(-1), 5000);
ASSERT_EQ(run("pushi -5000").to_integer(-1), -5000);
ASSERT_FLOAT_EQ(run("pushi 5000").to_float(-1), 5000.f);
ASSERT_FLOAT_EQ(run("pushc 0").to_float(-1), 3.14f);
ASSERT_EQ(run("pushc 0").to_integer(-1), 3);
ASSERT_EQ(run("pushc 1").to_string(-1), "Hello world");
ASSERT_TRUE(run("pushf 0").is_function(-1));
ASSERT_EQ(run("pushi 2\n pushi 3\n pop").to_integer(-1), 2);
}
TEST(VM, IntegerIntegerOperations)
{
auto test_op = [](int32_t op1, int32_t op2, std::string oper) {
return VM().load_bytecode(as::Assembler(std::format(R"(
.func 0
pushi {}
pushi {}
{}
ret
)", op1, op2, oper)).assemble()).call(0).to_integer(-1);
};
ASSERT_EQ(test_op(2, 3, "sum"), 5);
ASSERT_EQ(test_op(2, 3, "sub"), -1);
ASSERT_EQ(test_op(2, 3, "mul"), 6);
ASSERT_EQ(test_op(20, 3, "idiv"), 6);
ASSERT_EQ(test_op(2, 3, "eq"), 0);
ASSERT_EQ(test_op(2, 3, "neq"), 1);
ASSERT_EQ(test_op(2, 3, "lt"), 1);
ASSERT_EQ(test_op(2, 3, "lte"), 1);
ASSERT_EQ(test_op(3, 3, "lte"), 1);
ASSERT_EQ(test_op(4, 3, "lte"), 0);
ASSERT_EQ(test_op(2, 3, "gt"), 0);
ASSERT_EQ(test_op(2, 3, "gte"), 0);
ASSERT_EQ(test_op(3, 3, "gte"), 1);
ASSERT_EQ(test_op(4, 3, "gte"), 1);
ASSERT_EQ(test_op(2, 3, "and"), 2);
ASSERT_EQ(test_op(2, 3, "or"), 3);
ASSERT_EQ(test_op(2, 3, "xor"), 1);
ASSERT_EQ(test_op(2, 3, "pow"), 8);
ASSERT_EQ(test_op(2, 3, "shl"), 16);
ASSERT_EQ(test_op(30, 2, "shr"), 7);
ASSERT_EQ(test_op(8, 3, "mod"), 2);
ASSERT_FLOAT_EQ(run("pushi 3\n pushi 2\n div").to_float(-1), 1.5f);
}
TEST(VM, IntegerFloatOperations)
{
auto test_op = [](int op1, std::string const& op2, std::string oper) -> VM {
return VM().load_bytecode(as::Assembler(std::format(R"(
.const
0: {}
.func 0
pushi {}
pushc 0
{}
ret
)", op2, op1, oper)).assemble()).call(0);
};
ASSERT_FLOAT_EQ(test_op(2, "3.5", "sum").to_float(-1), 5.5f);
ASSERT_FLOAT_EQ(test_op(2, "3.5", "sub").to_float(-1), -1.5f);
ASSERT_FLOAT_EQ(test_op(2, "3.5", "mul").to_float(-1), 7.f);
ASSERT_FLOAT_EQ(test_op(20, "3.5", "idiv").to_integer(-1), 6);
ASSERT_FLOAT_EQ(test_op(20, "3.5", "div").to_float(-1), 5.7142859);
ASSERT_FLOAT_EQ(test_op(3, "3.5", "eq").to_integer(-1), 0);
ASSERT_FLOAT_EQ(test_op(3, "3.0", "eq").to_integer(-1), 1);
}
TEST(VM, FloatIntegerOperations)
{
auto test_op = [](std::string const& op1, int op2, std::string oper) -> VM {
return VM().load_bytecode(as::Assembler(std::format(R"(
.const
0: {}
.func 0
pushc 0
pushi {}
{}
ret
)", op1, op2, oper)).assemble()).call(0);
};
ASSERT_FLOAT_EQ(test_op("3.5", 2, "sum").to_float(-1), 5.5f);
ASSERT_FLOAT_EQ(test_op("3.5", 2, "sub").to_float(-1), 1.5f);
ASSERT_FLOAT_EQ(test_op("3.5", 2, "mul").to_float(-1), 7.f);
ASSERT_FLOAT_EQ(test_op("3.5", 2, "idiv").to_integer(-1), 1);
ASSERT_FLOAT_EQ(test_op("3.5", 2, "div").to_float(-1), 1.75f);
ASSERT_FLOAT_EQ(test_op("3.5", 3, "eq").to_integer(-1), 0);
ASSERT_FLOAT_EQ(test_op("3.0", 3, "eq").to_integer(-1), 1);
}
TEST(VM, FloatFloatOperations)
{
auto test_op = [](std::string const& op1, std::string const& op2, std::string oper) -> VM {
return VM().load_bytecode(as::Assembler(std::format(R"(
.const
0: {}
1: {}
.func 0
pushc 0
pushc 1
{}
ret
)", op1, op2, oper)).assemble()).call(0);
};
ASSERT_FLOAT_EQ(test_op("3.5", "2.2", "sum").to_float(-1), 5.7f);
ASSERT_FLOAT_EQ(test_op("3.5", "2.2", "sub").to_float(-1), 1.3f);
ASSERT_FLOAT_EQ(test_op("3.5", "2.2", "mul").to_float(-1), 7.7f);
ASSERT_FLOAT_EQ(test_op("3.5", "2.2", "idiv").to_integer(-1), 1);
ASSERT_FLOAT_EQ(test_op("4.5", "2.5", "div").to_float(-1), 1.8f);
ASSERT_FLOAT_EQ(test_op("3.2005", "3.2", "eq").to_integer(-1), 0);
ASSERT_FLOAT_EQ(test_op("3.2", "3.2", "eq").to_integer(-1), 1);
}
TEST(VM, StringString)
{
ASSERT_EQ(run(R"(
.const
0: "Hello"
1: "World"
.func 0
pushc 0
pushc 1
sum
ret
)").to_string(-1), "HelloWorld");
ASSERT_EQ(run(R"(
.const
0: "Hello"
1: "World"
.func 0
pushc 0
pushc 1
eq
ret
)").to_integer(-1), 0);
ASSERT_EQ(run(R"(
.const
0: "Hello"
1: "Hello"
.func 0
pushc 0
pushc 1
eq
ret
)").to_integer(-1), 1);
ASSERT_EQ(run(R"(
.const
0: "Hello"
.func 0
pushc 0
pushi 1
eq
ret
)").to_integer(-1), 0);
}
TEST(VM, LocalVariables)
{
VM vm = run(R"(
.func 0
pushv 2 ; local a, b
pushi 3 ; a = 3
set 0
pushi 4 ; b = 4
set 1
dupv 0 ; return a
ret
)");
ASSERT_EQ(vm.stack_sz(), 1);
ASSERT_EQ(vm.to_integer(-1), 3);
}
int main(int argc, char** argv)
{
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}