#include "utils.hpp"

#include <gtest/gtest.h>

TEST(IfindFirstTest, BasicMatch)
{
    auto [firstIndex, lastIndex] = iFindFirst("Hello World", "World");
    EXPECT_EQ(firstIndex, 6);
    EXPECT_EQ(lastIndex, 11);
}

TEST(IfindFirstTest, CaseInsensitiveMatch)
{
    auto [firstIndex, lastIndex] = iFindFirst("Hello World", "world");
    EXPECT_EQ(firstIndex, 6);
    EXPECT_EQ(lastIndex, 11);
}

TEST(IfindFirstTest, NoMatch)
{
    auto [firstIndex, lastIndex] = iFindFirst("Hello World", "Planet");
    EXPECT_EQ(firstIndex, std::string_view::npos);
    EXPECT_EQ(lastIndex, std::string_view::npos);
}

TEST(IfindFirstTest, MatchAtStart)
{
    auto [firstIndex, lastIndex] = iFindFirst("Hello World", "HeLLo");
    EXPECT_EQ(firstIndex, 0);
    EXPECT_EQ(lastIndex, 5);
}

TEST(IfindFirstTest, MatchAtEnd)
{
    auto [firstIndex, lastIndex] = iFindFirst("Hello World", "LD");
    EXPECT_EQ(firstIndex, 9);
    EXPECT_EQ(lastIndex, 11);
}

TEST(IfindFirstTest, EmptySubstring)
{
    auto [firstIndex, lastIndex] = iFindFirst("Hello", "");
    EXPECT_EQ(firstIndex, std::string_view::npos);
    EXPECT_EQ(lastIndex, std::string_view::npos);
}

TEST(IfindFirstTest, EmptyString)
{
    auto [firstIndex, lastIndex] = iFindFirst("", "Hello");
    EXPECT_EQ(firstIndex, std::string_view::npos);
    EXPECT_EQ(lastIndex, std::string_view::npos);
}