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#include <cstring>
#include <memory>
#include <utility>
#include <vector>
#include <gtest/gtest.h>
#include <starshatter/foundation/reader.h>
#include <Text.h>
using starshatter::foundation::Direction;
using starshatter::foundation::Reader;
TEST(FoundationEx, ReadFromView)
{
Reader reader("Hello, World!");
ASSERT_TRUE(reader.valid());
const auto s = reader.available();
std::vector<char> buffer(s);
ASSERT_EQ(14, buffer.size());
const auto bytes = reader.read(buffer.data());
ASSERT_EQ(14, bytes);
ASSERT_EQ(0, reader.available());
ASSERT_STREQ("Hello, World!", buffer.data());
}
TEST(FoundationEx, PeekIntoView)
{
Reader reader("Hello, World!");
ASSERT_TRUE(reader.valid());
reader.seek(7);
std::vector<char> buffer(reader.available());
ASSERT_EQ(7, buffer.size());
const auto bytes = reader.peek(buffer.data());
ASSERT_EQ(7, bytes);
ASSERT_EQ(7, reader.available());
ASSERT_STREQ("World!", buffer.data());
}
TEST(FoundationEx, RelativeSeek)
{
Reader reader("Hello, World!");
ASSERT_TRUE(reader.valid());
ASSERT_EQ(11, reader.seek(-3, Direction::End));
EXPECT_EQ(8, reader.seek(-3, Direction::Current));
ASSERT_EQ(5, reader.seek(5, Direction::Start));
EXPECT_EQ(7, reader.seek(2, Direction::Current));
}
TEST(FoundationEx, CreateTextFromReader)
{
const char* ref = "Hello!";
auto ptr = std::make_unique<char[]>(std::strlen(ref) + 1);
std::strcpy(ptr.get(), ref);
Reader reader(std::move(ptr));
ASSERT_TRUE(reader.valid());
const auto text = reader.more();
ASSERT_STREQ(ref, text);
}
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