#include "StringView.h"

#include "viewCString.h"

#include "viewLiteral.h"

#include <string_view>

#include <gtest/gtest.h>

using namespace string17;

TEST(StringView, fromLiteral) {

constexpr auto x = viewLiteral("Hello");

static_assert(x[0] == 'H');

static_assert(x.size() == 5u);

static_assert(!x.empty());

EXPECT_EQ(x[0], 'H');

// EXPECT_EQ(x.size(), 5); // MSVC seems to have a bug here

EXPECT_FALSE(x.empty());

auto y = viewLiteral("World");

EXPECT_EQ(y[0], 'W');

EXPECT_EQ(y.size(), 5u);

EXPECT_FALSE(y.empty());

static auto z = x;

EXPECT_EQ(z[0], 'H');

// EXPECT_EQ(z.size(), 5u); // MSVC seems to have a bug here

EXPECT_FALSE(z.empty());

}

TEST(StringView, fromCString) {

static constexpr auto* cstr = "Hello";

constexpr auto x = viewCString(cstr);

static_assert(x[0] == 'H');

static_assert(x.size() == 5u);

static_assert(!x.empty());

EXPECT_EQ(x[0], 'H');

// EXPECT_EQ(x.size(), 5u); // MSVC seems to have a bug here

EXPECT_FALSE(x.empty());

auto* ystr = "World";

auto y = viewCString(ystr);

EXPECT_EQ(y[0], 'W');

EXPECT_EQ(y.size(), 5u);

EXPECT_FALSE(y.empty());

}