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// Copyright 2025 Steven Le Rouzic
//
// SPDX-License-Identifier: BSD-3-Clause
#include "asl/testing/testing.hpp"
#include "asl/hashing/hash.hpp"
#include "asl/strings/string_view.hpp"
#include "asl/strings/string.hpp"
#include "asl/containers/buffer.hpp"
#include "asl/types/box.hpp"
#include "asl/types/option.hpp"
#include "asl/types/status.hpp"
#include "asl/types/status_or.hpp"
static_assert(!asl::hashable<int*>);
static_assert(!asl::hashable<int[]>);
static_assert(!asl::hashable<int[9]>);
static_assert(asl::hashable<uint8_t>);
static_assert(asl::hashable<uint16_t>);
static_assert(asl::hashable<uint32_t>);
static_assert(asl::hashable<uint64_t>);
static_assert(asl::hashable<uint128_t>);
static_assert(asl::hashable<int8_t>);
static_assert(asl::hashable<int16_t>);
static_assert(asl::hashable<int32_t>);
static_assert(asl::hashable<int64_t>);
ASL_TEST(integers)
{
const uint64_t a = asl::hash_value<uint16_t>(45);
const uint64_t b = asl::hash_value<uint16_t>(45);
const uint64_t c = asl::hash_value<uint16_t>(46);
const uint64_t d = asl::hash_value<uint32_t>(45);
ASL_TEST_EXPECT(a == b);
ASL_TEST_EXPECT(a != c);
ASL_TEST_EXPECT(a != d);
}
static_assert(asl::hashable<bool>);
ASL_TEST(bool)
{
ASL_TEST_EXPECT(asl::hash_value(true) == asl::hash_value(true));
ASL_TEST_EXPECT(asl::hash_value(false) == asl::hash_value(false));
ASL_TEST_EXPECT(asl::hash_value(true) != asl::hash_value(false));
}
static_assert(asl::hashable<asl::string_view>);
static_assert(asl::hashable<asl::string<>>);
ASL_TEST(strings)
{
ASL_TEST_EXPECT(asl::hash_value("hello"_sv) == asl::hash_value("hello"_sv));
ASL_TEST_EXPECT(asl::hash_value("hello"_sv) != asl::hash_value("hello "_sv));
ASL_TEST_EXPECT(asl::hash_value("hello"_sv) != asl::hash_value("HELLO"_sv));
ASL_TEST_EXPECT(asl::hash_value(asl::string("hello"_sv)) == asl::hash_value(asl::string("hello"_sv)));
ASL_TEST_EXPECT(asl::hash_value(asl::string("hello"_sv)) != asl::hash_value(asl::string("hello "_sv)));
ASL_TEST_EXPECT(asl::hash_value(asl::string("hello"_sv)) != asl::hash_value(asl::string("HELLO"_sv)));
ASL_TEST_EXPECT(asl::hash_value("hello"_sv) == asl::hash_value(asl::string("hello"_sv)));
}
static_assert(asl::hashable<asl::span<const int>>);
static_assert(!asl::hashable<asl::span<const int*>>);
static_assert(asl::hashable<asl::span<asl::string_view>>);
ASL_TEST(span)
{
int ints1[] = {1, 2, 3};
int ints2[] = {1, 2, 3};
int ints3[] = {1, 2};
int ints4[] = {3, 2, 1};
ASL_TEST_EXPECT(asl::hash_value(asl::span<int>(ints1)) == asl::hash_value(asl::span<int>(ints2)));
ASL_TEST_EXPECT(asl::hash_value(asl::span<int>(ints1)) != asl::hash_value(asl::span<int>(ints3)));
ASL_TEST_EXPECT(asl::hash_value(asl::span<int>(ints1)) != asl::hash_value(asl::span<int>(ints4)));
asl::string_view strs1[] = {"a", "abc", "hello"};
asl::string_view strs2[] = {"a", "abc", "hello"};
asl::string_view strs3[] = {"a", "abc"};
asl::string_view strs4[] = {"a", "abc", "hello", "what"};
ASL_TEST_EXPECT(asl::hash_value(asl::span<asl::string_view>(strs1)) == asl::hash_value(asl::span<asl::string_view>(strs2)));
ASL_TEST_EXPECT(asl::hash_value(asl::span<asl::string_view>(strs1)) != asl::hash_value(asl::span<asl::string_view>(strs3)));
ASL_TEST_EXPECT(asl::hash_value(asl::span<asl::string_view>(strs1)) != asl::hash_value(asl::span<asl::string_view>(strs4)));
}
static_assert(asl::hashable<asl::buffer<int>>);
static_assert(!asl::hashable<asl::buffer<int*>>);
ASL_TEST(buffer)
{
asl::buffer<int> ints1;
ints1.push(1);
ints1.push(2);
ints1.push(3);
asl::buffer<int> ints2;
ints2.push(1);
ints2.push(2);
ints2.push(3);
asl::buffer<int> ints3;
ints3.push(1);
ints3.push(2);
asl::buffer<int> ints4;
ints4.push(1);
ints4.push(2);
ints4.push(4);
ASL_TEST_EXPECT(asl::hash_value(ints1) == asl::hash_value(ints2));
ASL_TEST_EXPECT(asl::hash_value(ints1) != asl::hash_value(ints3));
ASL_TEST_EXPECT(asl::hash_value(ints1) != asl::hash_value(ints4));
ASL_TEST_EXPECT(asl::hash_value(ints1) == asl::hash_value(ints1.as_span()));
asl::buffer<asl::string_view> strs1;
strs1.push("Hello");
strs1.push("World");
asl::buffer<asl::string_view> strs2;
strs2.push("Hello");
strs2.push("World");
asl::buffer<asl::string_view> strs3;
strs3.push("Hello");
strs3.push("world");
asl::buffer<asl::string_view> strs4;
strs4.push("Hello");
strs4.push("World");
strs4.push("World");
ASL_TEST_EXPECT(asl::hash_value(strs1) == asl::hash_value(strs2));
ASL_TEST_EXPECT(asl::hash_value(strs1) != asl::hash_value(strs3));
ASL_TEST_EXPECT(asl::hash_value(strs1) != asl::hash_value(strs4));
ASL_TEST_EXPECT(asl::hash_value(strs1) == asl::hash_value(strs1.as_span()));
}
enum Enum1 {};
enum class Enum2 {};
static_assert(asl::hashable<Enum1>);
static_assert(asl::hashable<Enum2>);
static_assert(!asl::hashable<asl::box<int*>>);
static_assert(asl::hashable<asl::box<asl::string_view>>);
ASL_TEST(box)
{
auto b1 = asl::make_box<asl::string_view>("Hello, world!");
auto b2 = asl::make_box<asl::string_view>("Hello, world!");
auto b3 = asl::make_box<asl::string_view>("Hello, world! 2");
ASL_TEST_EXPECT(asl::hash_value(b1) == asl::hash_value(b2));
ASL_TEST_EXPECT(asl::hash_value(b1) != asl::hash_value(b3));
ASL_TEST_EXPECT(asl::hash_value(b1) == asl::hash_value("Hello, world!"_sv));
}
struct NonZero
{
int value;
constexpr explicit NonZero(int x) : value(x)
{
ASL_ASSERT(x != 0);
}
constexpr explicit NonZero(asl::niche_t) : value(0) {}
constexpr bool operator==(asl::niche_t) const { return value == 0; }
};
namespace asl { template<> struct is_uniquely_represented<NonZero> : true_type {}; }
static_assert(asl::has_niche<NonZero>);
static_assert(asl::uniquely_represented<NonZero>);
static_assert(asl::hashable<asl::option<int>>);
static_assert(!asl::hashable<asl::option<int*>>);
static_assert(asl::hashable<asl::option<asl::string_view>>);
static_assert(asl::hashable<asl::option<NonZero>>);
static_assert(asl::uniquely_represented<asl::option<NonZero>>);
ASL_TEST(option)
{
const asl::option<int> int1 = 0;
const asl::option<int> int2 = 0;
const asl::option<int> int3 = 1;
const asl::option<int> int4 = asl::nullopt;
ASL_TEST_EXPECT(asl::hash_value(int1) == asl::hash_value(int2));
ASL_TEST_EXPECT(asl::hash_value(int1) != asl::hash_value(int3));
ASL_TEST_EXPECT(asl::hash_value(int1) != asl::hash_value(int4));
const asl::option<NonZero> noz1{8};
const asl::option<NonZero> noz2{8};
const asl::option<NonZero> noz3{9};
const asl::option<NonZero> noz4 = asl::nullopt;
ASL_TEST_EXPECT(asl::hash_value(noz1) == asl::hash_value(noz2));
ASL_TEST_EXPECT(asl::hash_value(noz1) != asl::hash_value(noz3));
ASL_TEST_EXPECT(asl::hash_value(noz1) != asl::hash_value(noz4));
}
static_assert(asl::hashable<asl::status>);
// NOLINTNEXTLINE(*-cognitive-complexity)
ASL_TEST(status)
{
const asl::status s1 = asl::ok();
const asl::status s2 = asl::ok();
const asl::status s3 = asl::internal_error();
const asl::status s4 = asl::internal_error();
const asl::status s5 = asl::runtime_error();
const asl::status s6 = asl::internal_error("Oh, no!");
const asl::status s7 = asl::internal_error("Oh, no!");
const asl::status s8 = asl::internal_error("Oh, no");
const asl::status s9 = asl::runtime_error("Oh, no!");
ASL_TEST_EXPECT(asl::hash_value(s1) == asl::hash_value(s2));
ASL_TEST_EXPECT(asl::hash_value(s3) == asl::hash_value(s4));
ASL_TEST_EXPECT(asl::hash_value(s6) == asl::hash_value(s7));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s3));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s5));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s6));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s9));
ASL_TEST_EXPECT(asl::hash_value(s3) != asl::hash_value(s5));
ASL_TEST_EXPECT(asl::hash_value(s3) != asl::hash_value(s6));
ASL_TEST_EXPECT(asl::hash_value(s3) != asl::hash_value(s8));
ASL_TEST_EXPECT(asl::hash_value(s3) != asl::hash_value(s9));
ASL_TEST_EXPECT(asl::hash_value(s6) != asl::hash_value(s8));
ASL_TEST_EXPECT(asl::hash_value(s6) != asl::hash_value(s9));
}
static_assert(asl::hashable<asl::status_or<int>>);
static_assert(asl::hashable<asl::status_or<asl::string_view>>);
static_assert(!asl::hashable<asl::status_or<int*>>);
ASL_TEST(status_or)
{
const asl::status_or<int> s1 = 42;
const asl::status_or<int> s2 = 42;
const asl::status_or<int> s3 = 43;
const asl::status_or<int> s4 = asl::runtime_error();
const asl::status_or<int> s5 = asl::runtime_error();
const asl::status_or<int> s6 = asl::runtime_error("Hello");
const asl::status_or<int> s7 = asl::runtime_error("Hello");
ASL_TEST_EXPECT(asl::hash_value(s1) == asl::hash_value(s2));
ASL_TEST_EXPECT(asl::hash_value(s4) == asl::hash_value(s5));
ASL_TEST_EXPECT(asl::hash_value(s6) == asl::hash_value(s7));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s3));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s4));
ASL_TEST_EXPECT(asl::hash_value(s1) != asl::hash_value(s6));
ASL_TEST_EXPECT(asl::hash_value(s4) != asl::hash_value(s6));
}
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