From c0945246de2d656ec8f427a0ba89a0b3d1d899dc Mon Sep 17 00:00:00 2001
From: Kurt Sassenrath <kurt@sassenrath.me>
Date: Fri, 12 Jan 2024 13:37:39 -0800
Subject: [PATCH] Refactor packer tests to make recompilation faster

---
 tests/msgpack/BUILD                   |  18 --
 tests/msgpack/packer/BUILD            |   9 +
 tests/msgpack/packer/bytes.cpp        |  63 ++++++
 tests/msgpack/packer/ranges.cpp       |  63 ++++++
 tests/msgpack/packer/signed.cpp       |  71 ++++++
 tests/msgpack/packer/simple_types.cpp |  50 +++++
 tests/msgpack/packer/strings.cpp      |  46 ++++
 tests/msgpack/packer/test_packer.h    |  42 ++++
 tests/msgpack/packer/unsigned.cpp     |  71 ++++++
 tests/msgpack/test_packer_rc.cpp      | 306 --------------------------
 10 files changed, 415 insertions(+), 324 deletions(-)
 create mode 100644 tests/msgpack/packer/BUILD
 create mode 100644 tests/msgpack/packer/bytes.cpp
 create mode 100644 tests/msgpack/packer/ranges.cpp
 create mode 100644 tests/msgpack/packer/signed.cpp
 create mode 100644 tests/msgpack/packer/simple_types.cpp
 create mode 100644 tests/msgpack/packer/strings.cpp
 create mode 100644 tests/msgpack/packer/test_packer.h
 create mode 100644 tests/msgpack/packer/unsigned.cpp
 delete mode 100644 tests/msgpack/test_packer_rc.cpp

diff --git a/tests/msgpack/BUILD b/tests/msgpack/BUILD
index 58eb902..ea9d660 100644
--- a/tests/msgpack/BUILD
+++ b/tests/msgpack/BUILD
@@ -26,24 +26,6 @@ cc_test(
     deps = ["common"],
 )
 
-cc_test(
-    name = "packer",
-    size = "small",
-    srcs = [
-        "test_packer.cpp",
-    ],
-    deps = ["common"],
-)
-
-cc_test(
-    name = "packer_rc",
-    size = "small",
-    srcs = [
-        "test_packer_rc.cpp",
-    ],
-    deps = ["common", "@rapidcheck"],
-)
-
 cc_test(
     name = "writer",
     size = "small",
diff --git a/tests/msgpack/packer/BUILD b/tests/msgpack/packer/BUILD
new file mode 100644
index 0000000..6f7b55f
--- /dev/null
+++ b/tests/msgpack/packer/BUILD
@@ -0,0 +1,9 @@
+cc_test(
+    name = "packer",
+    size = "small",
+    srcs = glob([
+        "*.cpp",
+        "*.h",
+    ]),
+    deps = ["//tests/msgpack:common", "@rapidcheck"],
+)
diff --git a/tests/msgpack/packer/bytes.cpp b/tests/msgpack/packer/bytes.cpp
new file mode 100644
index 0000000..06c11c1
--- /dev/null
+++ b/tests/msgpack/packer/bytes.cpp
@@ -0,0 +1,63 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, byte types
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+
+#include "test_packer.h"
+
+using namespace boost::ut;
+
+suite pack_bytes = [] {
+#if 0
+    // Byte ranges -> Binary
+    "packer::pack<std::span<std::byte>>"_test = [] {
+        expect(test_deduced<std::span<std::byte const>>());
+    };
+#endif
+    "packer::pack<std::array<std::byte, N>>"_test = [] {
+        {
+            constexpr auto data = test::make_bytes(0x01, 0x02, 0x03, 0x04);
+            constexpr auto expected =
+                    test::make_bytes(0xc4, 0x04, 0x01, 0x02, 0x03, 0x04);
+            std::array<std::byte, std::size(expected)> payload;
+
+            msgpack::packer packer(payload);
+            expect(!!packer.pack(data));
+            expect(std::ranges::equal(payload, expected));
+        }
+        {
+            constexpr std::array<std::byte, 256> data{};
+            constexpr std::array<std::byte, 259> expected{
+                    std::byte(0xc5), std::byte(0x01), std::byte(0x00)};
+            std::array<std::byte, std::size(expected)> payload;
+
+            msgpack::packer packer(payload);
+            expect(!!packer.pack(data));
+            expect(std::ranges::equal(payload, expected));
+        }
+        {
+            constexpr std::array<std::byte, 65536> data{};
+            constexpr std::array<std::byte, std::size(data) + 5> expected{
+                    std::byte(0xc6), std::byte(0x00), std::byte(0x01),
+                    std::byte(0x00), std::byte(0x00)};
+            std::array<std::byte, std::size(expected)> payload;
+
+            msgpack::packer packer(payload);
+            expect(!!packer.pack(data));
+            expect(std::ranges::equal(payload, expected));
+        }
+    };
+};
diff --git a/tests/msgpack/packer/ranges.cpp b/tests/msgpack/packer/ranges.cpp
new file mode 100644
index 0000000..1888049
--- /dev/null
+++ b/tests/msgpack/packer/ranges.cpp
@@ -0,0 +1,63 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, ranges (for types that serialize to array / map formats)
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+
+#include "test_packer.h"
+
+#include <fmt/ranges.h>
+
+using namespace boost::ut;
+
+namespace {
+constexpr bool expect_equal(auto const& expected, auto const& actual) {
+    if (!std::ranges::equal(expected, actual)) {
+        fmt::print("\n\tExpected: ");
+        for (auto x : expected) {
+            fmt::print("{:02x} ", x);
+        }
+        fmt::print("\n\t  Actual: ");
+        for (auto x : actual) {
+            fmt::print("{:02x} ", x);
+        }
+        fmt::print("\n");
+        return false;
+    }
+    return true;
+}
+} // namespace
+
+suite pack_ranges = [] {
+    "packer::pack<std::array/std::span<int>>"_test = [] {
+        constexpr auto data_array = std::to_array<int>({5, 10, 15, 20});
+        constexpr auto expected = test::make_bytes(0x94, 0x05, 0xa, 0xf, 0x14);
+
+        {
+            std::array<std::byte, std::size(expected)> payload;
+            msgpack::packer packer(payload);
+            expect(!!packer.pack(data_array));
+            expect(expect_equal(std::span(expected), payload));
+        }
+
+        {
+            std::span data_span{data_array};
+            std::array<std::byte, std::size(expected)> payload;
+            msgpack::packer packer(payload);
+            expect(!!packer.pack(data_span));
+            expect(expect_equal(expected, payload));
+        }
+    };
+};
diff --git a/tests/msgpack/packer/signed.cpp b/tests/msgpack/packer/signed.cpp
new file mode 100644
index 0000000..2b41666
--- /dev/null
+++ b/tests/msgpack/packer/signed.cpp
@@ -0,0 +1,71 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, signed ints.
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+#include "test_packer.h"
+
+#include <rapidcheck.h>
+
+using namespace boost::ut;
+
+namespace {
+
+template <typename T>
+auto check_pack() {
+    return rc::check([](T value) {
+        std::array<std::byte, 16> payload;
+        msgpack::packer packer(payload);
+        if (!packer.pack(value)) return false;
+
+        if (value < 128 && value >= -32) {
+            // positive_fixint/negative_fixint
+            return packer.tell() == 1
+                && payload[0] == static_cast<std::byte>(value);
+        } else if (within<std::int8_t>(value)) {
+            return payload[0] == msgpack::format::int8::marker
+                && verify_packed<std::int8_t>(packer, value);
+        } else if (within<std::int16_t>(value)) {
+            return payload[0] == msgpack::format::int16::marker
+                && verify_packed<std::int16_t>(packer, value);
+        } else if (within<std::int32_t>(value)) {
+            return payload[0] == msgpack::format::int32::marker
+                && verify_packed<std::int32_t>(packer, value);
+        } else {
+            return payload[0] == msgpack::format::int64::marker
+                && verify_packed<std::int64_t>(packer, value);
+        }
+    });
+}
+
+} // anonymous namespace
+
+suite pack_signed_types = [] {
+    "packer::pack<std::int8_t>"_test = [] {
+        expect(check_pack<std::int8_t>());
+    };
+
+    "packer::pack<std::int16_t>"_test = [] {
+        expect(check_pack<std::int16_t>());
+    };
+
+    "packer::pack<std::int32_t>"_test = [] {
+        expect(check_pack<std::int32_t>());
+    };
+
+    "packer::pack<std::int64_t>"_test = [] {
+        expect(check_pack<std::int64_t>());
+    };
+};
diff --git a/tests/msgpack/packer/simple_types.cpp b/tests/msgpack/packer/simple_types.cpp
new file mode 100644
index 0000000..265e5c1
--- /dev/null
+++ b/tests/msgpack/packer/simple_types.cpp
@@ -0,0 +1,50 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, simple types
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+
+#include "test_packer.h"
+
+using namespace boost::ut;
+
+suite pack_simple_types = [] {
+    "packer::pack<nil>"_test = [] {
+        std::array<std::byte, 8> payload;
+        msgpack::packer packer(payload);
+        expect(!!packer.pack(msgpack::nil{}));
+        expect(packer.tell() == 1);
+        expect(payload[0] == std::byte{0xc0});
+    };
+
+    "packer::pack<invalid>"_test = [] {
+        std::array<std::byte, 8> payload;
+        msgpack::packer packer(payload);
+        expect(!!packer.pack(msgpack::invalid{}));
+        expect(packer.tell() == 1);
+        expect(payload[0] == std::byte{0xc1});
+    };
+
+    "packer::pack<bool>"_test = [] {
+        std::array<std::byte, 8> payload;
+        msgpack::packer packer(payload);
+        expect(!!packer.pack(false));
+        expect(packer.tell() == 1);
+        expect(payload[0] == std::byte{0xc2});
+        expect(!!packer.pack(true));
+        expect(packer.tell() == 2);
+        expect(payload[1] == std::byte{0xc3});
+    };
+};
diff --git a/tests/msgpack/packer/strings.cpp b/tests/msgpack/packer/strings.cpp
new file mode 100644
index 0000000..bc1e613
--- /dev/null
+++ b/tests/msgpack/packer/strings.cpp
@@ -0,0 +1,46 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, strings.
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+#include "test_packer.h"
+
+#include <rapidcheck.h>
+
+using namespace boost::ut;
+
+namespace {
+
+template <std::unsigned_integral LenType, typename StrType = std::string>
+auto check_string() {
+    return rc::check([](LenType value) {
+        auto str = *rc::gen::container<std::string>(
+                value, rc::gen::character<char>());
+        std::vector<std::byte> payload;
+        payload.resize(value + 32);
+        msgpack::packer packer(payload);
+        if (!packer.pack(str)) return false;
+        return true;
+    });
+}
+
+} // anonymous namespace
+
+suite pack_strings = [] {
+    "packer::pack<std::string>"_test = [] {
+        expect(check_string<std::uint8_t>());
+        expect(check_string<std::uint16_t>());
+    };
+};
diff --git a/tests/msgpack/packer/test_packer.h b/tests/msgpack/packer/test_packer.h
new file mode 100644
index 0000000..52af920
--- /dev/null
+++ b/tests/msgpack/packer/test_packer.h
@@ -0,0 +1,42 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, common code.
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+#ifndef tests_msgpack_packer_6e9a5bf8e14223bc
+#define tests_msgpack_packer_6e9a5bf8e14223bc
+
+#include "parselink/msgpack/core/packer.h"
+
+#include "test_utils.h"
+
+template <std::integral T>
+constexpr auto within(auto value) noexcept {
+    return value >= std::numeric_limits<T>::min()
+        && value <= std::numeric_limits<T>::max();
+}
+
+template <std::integral T>
+constexpr auto verify_packed(auto const& packer, auto value) noexcept {
+    std::array<std::byte, (std::numeric_limits<T>::digits + 7) / 8> raw;
+    if (packer.tell() != 1 + raw.size()) return false;
+
+    auto packed = packer.subspan().subspan(1);
+    be_to_host(packed.begin(), packed.end(), raw.begin());
+    auto actual = std::bit_cast<T>(raw);
+    return actual == value;
+}
+
+#endif // tests_msgpack_packer_6e9a5bf8e14223bc
diff --git a/tests/msgpack/packer/unsigned.cpp b/tests/msgpack/packer/unsigned.cpp
new file mode 100644
index 0000000..c36db14
--- /dev/null
+++ b/tests/msgpack/packer/unsigned.cpp
@@ -0,0 +1,71 @@
+//-----------------------------------------------------------------------------
+//     ___                      __ _       _
+//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
+//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
+//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
+//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
+//
+//-----------------------------------------------------------------------------
+// Author: Kurt Sassenrath
+// Module: msgpack
+//
+// Packer tests, unsigned ints.
+//
+// Copyright (c) 2023 Kurt Sassenrath.
+//
+// License TBD.
+//-----------------------------------------------------------------------------
+#include "test_packer.h"
+
+#include <rapidcheck.h>
+
+using namespace boost::ut;
+
+namespace {
+
+template <typename T>
+auto check_unsigned() {
+    return rc::check([](T value) {
+        std::array<std::byte, 16> payload;
+        msgpack::packer packer(payload);
+        if (!packer.pack(value)) return false;
+
+        if (value < 128) {
+            // positive_fixint
+            return packer.tell() == 1
+                && payload[0] == static_cast<std::byte>(value);
+        } else if (within<std::uint8_t>(value)) {
+            return payload[0] == msgpack::format::uint8::marker
+                && verify_packed<std::uint8_t>(packer, value);
+        } else if (within<std::uint16_t>(value)) {
+            return payload[0] == msgpack::format::uint16::marker
+                && verify_packed<std::uint16_t>(packer, value);
+        } else if (within<std::uint32_t>(value)) {
+            return payload[0] == msgpack::format::uint32::marker
+                && verify_packed<std::uint32_t>(packer, value);
+        } else {
+            return payload[0] == msgpack::format::uint64::marker
+                && verify_packed<std::uint64_t>(packer, value);
+        }
+    });
+}
+
+} // anonymous namespace
+
+suite packer_unsigned_ints = [] {
+    "packer::pack<std::uint8_t>"_test = [] {
+        expect(check_unsigned<std::uint8_t>());
+    };
+
+    "packer::pack<std::uint16_t>"_test = [] {
+        expect(check_unsigned<std::uint16_t>());
+    };
+
+    "packer::pack<std::uint32_t>"_test = [] {
+        expect(check_unsigned<std::uint32_t>());
+    };
+
+    "packer::pack<std::uint64_t>"_test = [] {
+        expect(check_unsigned<std::uint64_t>());
+    };
+};
diff --git a/tests/msgpack/test_packer_rc.cpp b/tests/msgpack/test_packer_rc.cpp
deleted file mode 100644
index f399ad5..0000000
--- a/tests/msgpack/test_packer_rc.cpp
+++ /dev/null
@@ -1,306 +0,0 @@
-//-----------------------------------------------------------------------------
-//     ___                      __ _       _
-//    / _ \__ _ _ __ ___  ___  / /(_)_ __ | | __
-//   / /_)/ _` | '__/ __|/ _ \/ / | | '_ \| |/ /
-//  / ___/ (_| | |  \__ \  __/ /__| | | | |   <
-//  \/    \__,_|_|  |___/\___\____/_|_| |_|_|\_\ .
-//
-//-----------------------------------------------------------------------------
-// Author: Kurt Sassenrath
-// Module: msgpack
-//
-// Default packer tests.
-//
-// Copyright (c) 2023 Kurt Sassenrath.
-//
-// License TBD.
-//-----------------------------------------------------------------------------
-
-#include "parselink/msgpack/core/packer.h"
-
-#include <fmt/format.h>
-#include <fmt/ranges.h>
-
-#include "rng.h"
-#include <algorithm>
-#include <boost/ut.hpp>
-#include <chrono>
-#include <rapidcheck.h>
-
-using namespace boost::ut;
-
-template <>
-struct fmt::formatter<msgpack::invalid> : fmt::formatter<std::string_view> {
-    template <typename FormatContext>
-    auto format(msgpack::nil const&, FormatContext& ctx) const {
-        return fmt::format_to(ctx.out(), "{{msgpack::invalid}}");
-    }
-};
-
-template <>
-struct fmt::formatter<msgpack::nil> : fmt::formatter<std::string_view> {
-    template <typename FormatContext>
-    auto format(msgpack::nil const&, FormatContext& ctx) const {
-        return fmt::format_to(ctx.out(), "{{msgpack::nil}}");
-    }
-};
-
-template <>
-struct fmt::formatter<msgpack::map_desc> : fmt::formatter<std::string_view> {
-    template <typename FormatContext>
-    auto format(msgpack::map_desc const& value, FormatContext& ctx) const {
-        return fmt::format_to(
-                ctx.out(), "{{msgpack::map_desc: {}}}", value.count);
-    }
-};
-
-template <>
-struct fmt::formatter<msgpack::array_desc> : fmt::formatter<std::string_view> {
-    template <typename FormatContext>
-    auto format(msgpack::array_desc const& value, FormatContext& ctx) const {
-        return fmt::format_to(
-                ctx.out(), "{{msgpack::array_desc: {}}}", value.count);
-    }
-};
-
-namespace {
-
-template <typename T>
-constexpr auto within(auto value) noexcept {
-    return value >= std::numeric_limits<T>::min()
-        && value <= std::numeric_limits<T>::max();
-}
-
-template <typename T>
-std::byte marker_for;
-
-template <std::integral T>
-constexpr auto verify_packed(auto const& packer, auto value) noexcept {
-    std::array<std::byte, (std::numeric_limits<T>::digits + 7) / 8> raw;
-    if (packer.tell() != 1 + raw.size()) return false;
-
-    auto packed = packer.subspan().subspan(1);
-    be_to_host(packed.begin(), packed.end(), raw.begin());
-    auto actual = std::bit_cast<T>(raw);
-    return actual == value;
-}
-
-template <typename T>
-auto check_signed() {
-    return rc::check([](T value) {
-        std::array<std::byte, 16> payload;
-        msgpack::packer packer(payload);
-        if (!packer.pack(value)) return false;
-
-        if (value < 128 && value >= -32) {
-            // positive_fixint/negative_fixint
-            return packer.tell() == 1
-                && payload[0] == static_cast<std::byte>(value);
-        } else if (within<std::int8_t>(value)) {
-            return payload[0] == msgpack::format::int8::marker
-                && verify_packed<std::int8_t>(packer, value);
-        } else if (within<std::int16_t>(value)) {
-            return payload[0] == msgpack::format::int16::marker
-                && verify_packed<std::int16_t>(packer, value);
-        } else if (within<std::int32_t>(value)) {
-            return payload[0] == msgpack::format::int32::marker
-                && verify_packed<std::int32_t>(packer, value);
-        } else {
-            return payload[0] == msgpack::format::int64::marker
-                && verify_packed<std::int64_t>(packer, value);
-        }
-    });
-}
-
-template <typename T>
-auto check_unsigned() {
-    return rc::check([](T value) {
-        std::array<std::byte, 16> payload;
-        msgpack::packer packer(payload);
-        if (!packer.pack(value)) return false;
-
-        if (value < 128) {
-            // positive_fixint
-            return packer.tell() == 1
-                && payload[0] == static_cast<std::byte>(value);
-        } else if (within<std::uint8_t>(value)) {
-            return payload[0] == msgpack::format::uint8::marker
-                && verify_packed<std::uint8_t>(packer, value);
-        } else if (within<std::uint16_t>(value)) {
-            return payload[0] == msgpack::format::uint16::marker
-                && verify_packed<std::uint16_t>(packer, value);
-        } else if (within<std::uint32_t>(value)) {
-            return payload[0] == msgpack::format::uint32::marker
-                && verify_packed<std::uint32_t>(packer, value);
-        } else {
-            return payload[0] == msgpack::format::uint64::marker
-                && verify_packed<std::uint64_t>(packer, value);
-        }
-    });
-}
-
-template <std::unsigned_integral LenType, typename StrType = std::string>
-auto check_string() {
-    return rc::check([](LenType value) {
-        auto str = *rc::gen::container<std::string>(
-                value, rc::gen::character<char>());
-        std::vector<std::byte> payload;
-        payload.resize(value + 32);
-        msgpack::packer packer(payload);
-        if (!packer.pack(str)) return false;
-        return true;
-    });
-}
-
-} // anonymous namespace
-
-suite packer_single_format = [] {
-    "packer::pack<nil>"_test = [] {
-        std::array<std::byte, 8> payload;
-        msgpack::packer packer(payload);
-        expect(!!packer.pack(msgpack::nil{}));
-        expect(packer.tell() == 1);
-        expect(payload[0] == std::byte{0xc0});
-    };
-
-    "packer::pack<invalid>"_test = [] {
-        std::array<std::byte, 8> payload;
-        msgpack::packer packer(payload);
-        expect(!!packer.pack(msgpack::invalid{}));
-        expect(packer.tell() == 1);
-        expect(payload[0] == std::byte{0xc1});
-    };
-
-    "packer::pack<bool>"_test = [] {
-        std::array<std::byte, 8> payload;
-        msgpack::packer packer(payload);
-        expect(!!packer.pack(false));
-        expect(packer.tell() == 1);
-        expect(payload[0] == std::byte{0xc2});
-        expect(!!packer.pack(true));
-        expect(packer.tell() == 2);
-        expect(payload[1] == std::byte{0xc3});
-    };
-
-    "packer::pack<std::uint8_t>"_test = [] {
-        expect(check_unsigned<std::uint8_t>());
-    };
-
-    "packer::pack<std::uint16_t>"_test = [] {
-        expect(check_unsigned<std::uint16_t>());
-    };
-
-    "packer::pack<std::uint32_t>"_test = [] {
-        expect(check_unsigned<std::uint32_t>());
-    };
-
-    "packer::pack<std::uint64_t>"_test = [] {
-        expect(check_unsigned<std::uint64_t>());
-    };
-
-    "packer::pack<std::int8_t>"_test = [] {
-        expect(check_signed<std::int8_t>());
-    };
-
-    "packer::pack<std::int16_t>"_test = [] {
-        expect(check_signed<std::int16_t>());
-    };
-
-    "packer::pack<std::int32_t>"_test = [] {
-        expect(check_signed<std::int32_t>());
-    };
-
-    "packer::pack<std::int64_t>"_test = [] {
-        expect(check_signed<std::int64_t>());
-    };
-
-    "packer::pack<std::string>"_test = [] {
-        expect(check_string<std::uint8_t>());
-        expect(check_string<std::uint16_t>());
-    };
-};
-#if 0
-    // Strings
-    "packer::pack<std::string_view>"_test = [] {
-        expect(test_deduced<std::string_view>());
-    };
-#if 0
-    "packer::pack<char const*>"_test = [] {
-        expect(test_deduced<char const*>());
-    };
-#endif
-
-    // Byte ranges -> Binary
-
-    "packer::pack<std::span<std::byte>>"_test = [] {
-        expect(test_deduced<std::span<std::byte const>>());
-    };
-
-    "packer::pack<std::array<std::byte, N>>"_test = [] {
-        {
-            constexpr auto data = make_bytes(0x01, 0x02, 0x03, 0x04);
-            constexpr auto expected =
-                    make_bytes(0xc4, 0x04, 0x01, 0x02, 0x03, 0x04);
-            std::array<std::byte, std::size(expected)> payload;
-
-            msgpack::packer packer(payload);
-            expect(!!packer.pack(data));
-            expect(std::ranges::equal(payload, expected));
-        }
-        {
-            constexpr std::array<std::byte, 256> data{};
-            constexpr std::array<std::byte, 259> expected{
-                    std::byte(0xc5), std::byte(0x01), std::byte(0x00)};
-            std::array<std::byte, std::size(expected)> payload;
-
-            msgpack::packer packer(payload);
-            expect(!!packer.pack(data));
-            expect(std::ranges::equal(payload, expected));
-        }
-        {
-            constexpr std::array<std::byte, 65536> data{};
-            constexpr std::array<std::byte, std::size(data) + 5> expected{
-                    std::byte(0xc6), std::byte(0x00), std::byte(0x01),
-                    std::byte(0x00), std::byte(0x00)};
-            std::array<std::byte, std::size(expected)> payload;
-
-            msgpack::packer packer(payload);
-            expect(!!packer.pack(data));
-            expect(std::ranges::equal(payload, expected));
-        }
-    };
-
-    // array_desc - Just the header of the array.
-    "packer::pack<msgpack::array_desc>"_test = [] {
-        expect(test_deduced<msgpack::array_desc>());
-    };
-
-    // map_desc - Just the header of the map.
-    "packer::pack<msgpack::map_desc>"_test = [] {
-        expect(test_deduced<msgpack::map_desc>());
-    };
-};
-
-suite packer_ranges = [] {
-    "packer::pack<std::array/std::span<int>>"_test = [] {
-        constexpr auto data_array = std::to_array<int>({5, 10, 15, 20});
-        constexpr auto expected =
-                make_bytes(0x94, 0xd0, 0x05, 0xd0, 0xa, 0xd0, 0xf, 0xd0, 0x14);
-
-        {
-            std::array<std::byte, std::size(expected)> payload;
-            msgpack::packer packer(payload);
-            expect(!!packer.pack(data_array));
-            expect(std::ranges::equal(payload, expected));
-        }
-
-        {
-            std::span data_span{data_array};
-            std::array<std::byte, std::size(expected)> payload;
-            msgpack::packer packer(payload);
-            expect(!!packer.pack(data_span));
-            expect(std::ranges::equal(payload, expected));
-        }
-    };
-};
-#endif