TEST_F(FFITest, CStackWithString) {
CStack cstack;
cstack.push(Object::makeFixnum(3), CStack::SIGNATURE_INT);
cstack.push("hige", CStack::SIGNATURE_POINTER);
intptr_t* p = cstack.reg();
EXPECT_EQ(2, cstack.regCount());
EXPECT_EQ(3, p[0]);
EXPECT_STREQ("hige", (char*)p[1]);
}
TEST_F(FFITest, CStackWithByteVector) {
CStack cstack;
Object b = Object::makeByteVector(2);
ByteVector* const bv = b.toByteVector();
bv->u8Set(0, 1);
bv->u8Set(1, 2);
cstack.push(b, CStack::SIGNATURE_POINTER);
cstack.push("hige", CStack::SIGNATURE_POINTER);
intptr_t* p = cstack.reg();
EXPECT_EQ(2, cstack.regCount());
EXPECT_EQ(1, ((uint8_t*)(p[0]))[0]);
EXPECT_EQ(2, ((uint8_t*)(p[0]))[1]);
EXPECT_STREQ("hige", (char*)p[1]);
}
TEST_F(FFITest, CStackWithFixnum) {
CStack cstack;
EXPECT_TRUE(cstack.push(Object::makeFixnum(3), CStack::SIGNATURE_INT));
EXPECT_TRUE(cstack.push(Object::makeFixnum(4), CStack::SIGNATURE_INT));
EXPECT_TRUE(cstack.push(Object::makeFixnum(-5), CStack::SIGNATURE_INT));
EXPECT_TRUE(cstack.push(Bignum::makeIntegerFromU32(0xffffffff), CStack::SIGNATURE_INT64));
intptr_t* p = cstack.reg();
EXPECT_EQ(4, cstack.regCount());
EXPECT_EQ(3, p[0]);
EXPECT_EQ(4, p[1]);
EXPECT_EQ(-5, p[2]);
const uint32_t x = 0xffffffff;
const uint32_t y = p[3];
EXPECT_EQ(x, y);
}
