aboutsummaryrefslogtreecommitdiff
path: root/thirdparty/fmt/test/base-test.cc
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/fmt/test/base-test.cc')
-rw-r--r--thirdparty/fmt/test/base-test.cc911
1 files changed, 0 insertions, 911 deletions
diff --git a/thirdparty/fmt/test/base-test.cc b/thirdparty/fmt/test/base-test.cc
deleted file mode 100644
index 0231e422d..000000000
--- a/thirdparty/fmt/test/base-test.cc
+++ /dev/null
@@ -1,911 +0,0 @@
-// Formatting library for C++ - core tests
-//
-// Copyright (c) 2012 - present, Victor Zverovich
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-// Turn assertion failures into exceptions for testing.
-// clang-format off
-#include "test-assert.h"
-// clang-format on
-
-#include "fmt/base.h"
-
-#include <limits.h> // INT_MAX
-#include <string.h> // strlen
-
-#include <functional> // std::equal_to
-#include <iterator> // std::back_insert_iterator, std::distance
-#include <limits> // std::numeric_limits
-#include <string> // std::string
-#include <type_traits> // std::is_same
-
-#include "gmock/gmock.h"
-
-#ifdef FMT_FORMAT_H_
-# error base-test includes format.h
-#endif
-
-using testing::_;
-using testing::Invoke;
-using testing::Return;
-
-auto copy(fmt::string_view s, fmt::appender out) -> fmt::appender {
- for (char c : s) *out++ = c;
- return out;
-}
-
-TEST(string_view_test, value_type) {
- static_assert(std::is_same<fmt::string_view::value_type, char>::value, "");
-}
-
-TEST(string_view_test, ctor) {
- EXPECT_STREQ(fmt::string_view("abc").data(), "abc");
- EXPECT_EQ(fmt::string_view("abc").size(), 3u);
-
- EXPECT_STREQ(fmt::string_view(std::string("defg")).data(), "defg");
- EXPECT_EQ(fmt::string_view(std::string("defg")).size(), 4u);
-}
-
-TEST(string_view_test, length) {
- // Test that string_view::size() returns string length, not buffer size.
- char str[100] = "some string";
- EXPECT_EQ(fmt::string_view(str).size(), strlen(str));
- EXPECT_LT(strlen(str), sizeof(str));
-}
-
-// Check string_view's comparison operator.
-template <template <typename> class Op> void check_op() {
- const char* inputs[] = {"foo", "fop", "fo"};
- size_t num_inputs = sizeof(inputs) / sizeof(*inputs);
- for (size_t i = 0; i < num_inputs; ++i) {
- for (size_t j = 0; j < num_inputs; ++j) {
- fmt::string_view lhs(inputs[i]), rhs(inputs[j]);
- EXPECT_EQ(Op<int>()(lhs.compare(rhs), 0),
- Op<fmt::string_view>()(lhs, rhs));
- }
- }
-}
-
-TEST(string_view_test, compare) {
- using fmt::string_view;
-
- EXPECT_EQ(string_view("foo").compare(string_view("foo")), 0);
- EXPECT_GT(string_view("fop").compare(string_view("foo")), 0);
- EXPECT_LT(string_view("foo").compare(string_view("fop")), 0);
- EXPECT_GT(string_view("foo").compare(string_view("fo")), 0);
- EXPECT_LT(string_view("fo").compare(string_view("foo")), 0);
-
- EXPECT_TRUE(string_view("foo").starts_with('f'));
- EXPECT_FALSE(string_view("foo").starts_with('o'));
- EXPECT_FALSE(string_view().starts_with('o'));
-
- EXPECT_TRUE(string_view("foo").starts_with("fo"));
- EXPECT_TRUE(string_view("foo").starts_with("foo"));
- EXPECT_FALSE(string_view("foo").starts_with("fooo"));
- EXPECT_FALSE(string_view().starts_with("fooo"));
-
- check_op<std::equal_to>();
- check_op<std::not_equal_to>();
- check_op<std::less>();
- check_op<std::less_equal>();
- check_op<std::greater>();
- check_op<std::greater_equal>();
-}
-
-#if FMT_USE_CONSTEVAL
-TEST(string_view_test, from_constexpr_fixed_string) {
- constexpr int size = 4;
-
- struct fixed_string {
- char data[size] = {};
-
- constexpr fixed_string(const char (&m)[size]) {
- for (size_t i = 0; i != size; ++i) data[i] = m[i];
- }
- };
-
- static constexpr auto fs = fixed_string("foo");
- static constexpr auto sv = fmt::string_view(fs.data);
- EXPECT_EQ(sv, "foo");
-}
-#endif // FMT_USE_CONSTEVAL
-
-TEST(buffer_test, noncopyable) {
- EXPECT_FALSE(std::is_copy_constructible<fmt::detail::buffer<char>>::value);
- EXPECT_FALSE(std::is_copy_assignable<fmt::detail::buffer<char>>::value);
-}
-
-TEST(buffer_test, nonmoveable) {
- EXPECT_FALSE(std::is_move_constructible<fmt::detail::buffer<char>>::value);
- EXPECT_FALSE(std::is_move_assignable<fmt::detail::buffer<char>>::value);
-}
-
-TEST(buffer_test, indestructible) {
- static_assert(!std::is_destructible<fmt::detail::buffer<int>>(),
- "buffer's destructor is protected");
-}
-
-template <typename T> struct mock_buffer final : fmt::detail::buffer<T> {
- MOCK_METHOD(size_t, do_grow, (size_t));
-
- static void grow(fmt::detail::buffer<T>& buf, size_t capacity) {
- auto& self = static_cast<mock_buffer&>(buf);
- self.set(buf.data(), self.do_grow(capacity));
- }
-
- mock_buffer(T* data = nullptr, size_t buf_capacity = 0)
- : fmt::detail::buffer<T>(grow) {
- this->set(data, buf_capacity);
- ON_CALL(*this, do_grow(_)).WillByDefault(Invoke([](size_t capacity) {
- return capacity;
- }));
- }
-};
-
-TEST(buffer_test, ctor) {
- {
- mock_buffer<int> buffer;
- EXPECT_EQ(buffer.data(), nullptr);
- EXPECT_EQ(buffer.size(), 0u);
- EXPECT_EQ(buffer.capacity(), 0u);
- }
- {
- int data;
- mock_buffer<int> buffer(&data);
- EXPECT_EQ(&buffer[0], &data);
- EXPECT_EQ(buffer.size(), 0u);
- EXPECT_EQ(buffer.capacity(), 0u);
- }
- {
- int data;
- size_t capacity = std::numeric_limits<size_t>::max();
- mock_buffer<int> buffer(&data, capacity);
- EXPECT_EQ(&buffer[0], &data);
- EXPECT_EQ(buffer.size(), 0u);
- EXPECT_EQ(buffer.capacity(), capacity);
- }
-}
-
-TEST(buffer_test, access) {
- char data[10];
- mock_buffer<char> buffer(data, sizeof(data));
- buffer[0] = 11;
- EXPECT_EQ(buffer[0], 11);
- buffer[3] = 42;
- EXPECT_EQ(*(&buffer[0] + 3), 42);
- const fmt::detail::buffer<char>& const_buffer = buffer;
- EXPECT_EQ(const_buffer[3], 42);
-}
-
-TEST(buffer_test, try_resize) {
- char data[123];
- mock_buffer<char> buffer(data, sizeof(data));
- buffer[10] = 42;
- EXPECT_EQ(buffer[10], 42);
- buffer.try_resize(20);
- EXPECT_EQ(buffer.size(), 20u);
- EXPECT_EQ(buffer.capacity(), 123u);
- EXPECT_EQ(buffer[10], 42);
- buffer.try_resize(5);
- EXPECT_EQ(buffer.size(), 5u);
- EXPECT_EQ(buffer.capacity(), 123u);
- EXPECT_EQ(buffer[10], 42);
- // Check if try_resize calls grow.
- EXPECT_CALL(buffer, do_grow(124));
- buffer.try_resize(124);
- EXPECT_CALL(buffer, do_grow(200));
- buffer.try_resize(200);
-}
-
-TEST(buffer_test, try_resize_partial) {
- char data[10];
- mock_buffer<char> buffer(data, sizeof(data));
- EXPECT_CALL(buffer, do_grow(20)).WillOnce(Return(15));
- buffer.try_resize(20);
- EXPECT_EQ(buffer.capacity(), 15);
- EXPECT_EQ(buffer.size(), 15);
-}
-
-TEST(buffer_test, clear) {
- mock_buffer<char> buffer;
- EXPECT_CALL(buffer, do_grow(20));
- buffer.try_resize(20);
- buffer.try_resize(0);
- EXPECT_EQ(buffer.size(), 0u);
- EXPECT_EQ(buffer.capacity(), 20u);
-}
-
-TEST(buffer_test, append) {
- char data[15];
- mock_buffer<char> buffer(data, 10);
- auto test = "test";
- buffer.append(test, test + 5);
- EXPECT_STREQ(&buffer[0], test);
- EXPECT_EQ(buffer.size(), 5u);
- buffer.try_resize(10);
- EXPECT_CALL(buffer, do_grow(12));
- buffer.append(test, test + 2);
- EXPECT_EQ(buffer[10], 't');
- EXPECT_EQ(buffer[11], 'e');
- EXPECT_EQ(buffer.size(), 12u);
-}
-
-TEST(buffer_test, append_partial) {
- char data[10];
- mock_buffer<char> buffer(data, sizeof(data));
- testing::InSequence seq;
- EXPECT_CALL(buffer, do_grow(15)).WillOnce(Return(10));
- EXPECT_CALL(buffer, do_grow(15)).WillOnce(Invoke([&buffer](size_t) {
- EXPECT_EQ(fmt::string_view(buffer.data(), buffer.size()), "0123456789");
- buffer.clear();
- return 10;
- }));
- auto test = "0123456789abcde";
- buffer.append(test, test + 15);
-}
-
-TEST(buffer_test, append_allocates_enough_storage) {
- char data[19];
- mock_buffer<char> buffer(data, 10);
- auto test = "abcdefgh";
- buffer.try_resize(10);
- EXPECT_CALL(buffer, do_grow(19));
- buffer.append(test, test + 9);
-}
-
-TEST(base_test, is_locking) {
- EXPECT_FALSE(fmt::detail::is_locking<const char(&)[3]>());
-}
-
-TEST(base_test, is_output_iterator) {
- EXPECT_TRUE((fmt::detail::is_output_iterator<char*, char>::value));
- EXPECT_FALSE((fmt::detail::is_output_iterator<const char*, char>::value));
- EXPECT_FALSE((fmt::detail::is_output_iterator<std::string, char>::value));
- EXPECT_TRUE(
- (fmt::detail::is_output_iterator<std::back_insert_iterator<std::string>,
- char>::value));
- EXPECT_TRUE(
- (fmt::detail::is_output_iterator<std::string::iterator, char>::value));
- EXPECT_FALSE((fmt::detail::is_output_iterator<std::string::const_iterator,
- char>::value));
-}
-
-TEST(base_test, is_back_insert_iterator) {
- EXPECT_TRUE(fmt::detail::is_back_insert_iterator<
- std::back_insert_iterator<std::string>>::value);
- EXPECT_FALSE(fmt::detail::is_back_insert_iterator<
- std::front_insert_iterator<std::string>>::value);
-}
-
-struct minimal_container {
- using value_type = char;
- void push_back(char) {}
-};
-
-TEST(base_test, copy) {
- minimal_container c;
- static constexpr char str[] = "a";
- fmt::detail::copy<char>(str, str + 1, std::back_inserter(c));
-}
-
-TEST(base_test, get_buffer) {
- mock_buffer<char> buffer;
- void* buffer_ptr = &buffer;
- auto&& appender_result = fmt::detail::get_buffer<char>(fmt::appender(buffer));
- EXPECT_EQ(&appender_result, buffer_ptr);
- auto&& back_inserter_result =
- fmt::detail::get_buffer<char>(std::back_inserter(buffer));
- EXPECT_EQ(&back_inserter_result, buffer_ptr);
-}
-
-struct test_struct {};
-
-FMT_BEGIN_NAMESPACE
-template <typename Char> struct formatter<test_struct, Char> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
-
- auto format(test_struct, format_context& ctx) const -> decltype(ctx.out()) {
- return copy("test", ctx.out());
- }
-};
-FMT_END_NAMESPACE
-
-// Use a unique result type to make sure that there are no undesirable
-// conversions.
-struct test_result {};
-
-template <typename T> struct mock_visitor {
- template <typename U> struct result {
- using type = test_result;
- };
-
- mock_visitor() {
- ON_CALL(*this, visit(_)).WillByDefault(Return(test_result()));
- }
-
- MOCK_METHOD(test_result, visit, (T));
- MOCK_METHOD(void, unexpected, ());
-
- auto operator()(T value) -> test_result { return visit(value); }
-
- template <typename U> auto operator()(U) -> test_result {
- unexpected();
- return test_result();
- }
-};
-
-template <typename T> struct visit_type {
- using type = T;
-};
-
-#define VISIT_TYPE(type_, visit_type_) \
- template <> struct visit_type<type_> { \
- using type = visit_type_; \
- }
-
-VISIT_TYPE(signed char, int);
-VISIT_TYPE(unsigned char, unsigned);
-VISIT_TYPE(short, int);
-VISIT_TYPE(unsigned short, unsigned);
-
-#if LONG_MAX == INT_MAX
-VISIT_TYPE(long, int);
-VISIT_TYPE(unsigned long, unsigned);
-#else
-VISIT_TYPE(long, long long);
-VISIT_TYPE(unsigned long, unsigned long long);
-#endif
-
-#if FMT_BUILTIN_TYPES
-# define CHECK_ARG(expected, value) \
- { \
- testing::StrictMock<mock_visitor<decltype(expected)>> visitor; \
- EXPECT_CALL(visitor, visit(expected)); \
- auto var = value; \
- fmt::basic_format_arg<fmt::format_context>(var).visit(visitor); \
- }
-#else
-# define CHECK_ARG(expected, value)
-#endif
-
-#define CHECK_ARG_SIMPLE(value) \
- { \
- using value_type = decltype(value); \
- typename visit_type<value_type>::type expected = value; \
- CHECK_ARG(expected, value) \
- }
-
-TEST(arg_test, format_args) {
- auto args = fmt::format_args();
- EXPECT_FALSE(args.get(1));
-}
-
-TEST(arg_test, char_arg) { CHECK_ARG('a', 'a'); }
-
-TEST(arg_test, string_arg) {
- char str_data[] = "test";
- char* str = str_data;
- const char* cstr = str;
- CHECK_ARG(cstr, str);
-
- auto sv = fmt::string_view(str);
- CHECK_ARG(sv, std::string(str));
-}
-
-TEST(arg_test, pointer_arg) {
- void* p = nullptr;
- const void* cp = nullptr;
- CHECK_ARG(cp, p);
- CHECK_ARG_SIMPLE(cp);
-}
-
-TEST(arg_test, volatile_pointer_arg) {
- const void* p = nullptr;
- volatile int* vip = nullptr;
- const volatile int* cvip = nullptr;
- CHECK_ARG(p, static_cast<volatile void*>(vip));
- CHECK_ARG(p, static_cast<const volatile void*>(cvip));
-}
-
-struct check_custom {
- auto operator()(fmt::basic_format_arg<fmt::format_context>::handle h) const
- -> test_result {
- struct test_buffer final : fmt::detail::buffer<char> {
- char data[10];
- test_buffer()
- : fmt::detail::buffer<char>([](buffer<char>&, size_t) {}, data, 0,
- 10) {}
- } buffer;
- auto parse_ctx = fmt::format_parse_context("");
- auto ctx = fmt::format_context(fmt::appender(buffer), fmt::format_args());
- h.format(parse_ctx, ctx);
- EXPECT_EQ(std::string(buffer.data, buffer.size()), "test");
- return test_result();
- }
-};
-
-TEST(arg_test, custom_arg) {
- auto test = test_struct();
- using visitor =
- mock_visitor<fmt::basic_format_arg<fmt::format_context>::handle>;
- auto&& v = testing::StrictMock<visitor>();
- EXPECT_CALL(v, visit(_)).WillOnce(Invoke(check_custom()));
- fmt::basic_format_arg<fmt::format_context>(test).visit(v);
-}
-
-TEST(arg_test, visit_invalid_arg) {
- auto&& visitor = testing::StrictMock<mock_visitor<fmt::monostate>>();
- EXPECT_CALL(visitor, visit(_));
- fmt::basic_format_arg<fmt::format_context>().visit(visitor);
-}
-
-template <typename T> class numeric_arg_test : public testing::Test {};
-
-#if FMT_BUILTIN_TYPES
-using test_types =
- testing::Types<bool, signed char, unsigned char, short, unsigned short, int,
- unsigned, long, unsigned long, long long, unsigned long long,
- float, double, long double>;
-#else
-using test_types = testing::Types<int>;
-#endif
-TYPED_TEST_SUITE(numeric_arg_test, test_types);
-
-template <typename T, fmt::enable_if_t<std::is_integral<T>::value, int> = 0>
-auto test_value() -> T {
- return static_cast<T>(42);
-}
-
-template <typename T,
- fmt::enable_if_t<std::is_floating_point<T>::value, int> = 0>
-auto test_value() -> T {
- return static_cast<T>(4.2);
-}
-
-TYPED_TEST(numeric_arg_test, make_and_visit) {
- CHECK_ARG_SIMPLE(test_value<TypeParam>());
- CHECK_ARG_SIMPLE(std::numeric_limits<TypeParam>::min());
- CHECK_ARG_SIMPLE(std::numeric_limits<TypeParam>::max());
-}
-
-#if FMT_USE_CONSTEXPR
-
-enum class arg_id_result { none, index, name };
-
-struct test_arg_id_handler {
- arg_id_result res = arg_id_result::none;
- int index = 0;
- fmt::string_view name;
-
- constexpr void on_index(int i) {
- res = arg_id_result::index;
- index = i;
- }
-
- constexpr void on_name(fmt::string_view n) {
- res = arg_id_result::name;
- name = n;
- }
-};
-
-template <size_t N>
-constexpr auto parse_arg_id(const char (&s)[N]) -> test_arg_id_handler {
- auto h = test_arg_id_handler();
- fmt::detail::parse_arg_id(s, s + N, h);
- return h;
-}
-
-TEST(base_test, constexpr_parse_arg_id) {
- static_assert(parse_arg_id("42:").res == arg_id_result::index, "");
- static_assert(parse_arg_id("42:").index == 42, "");
- static_assert(parse_arg_id("foo:").res == arg_id_result::name, "");
- static_assert(parse_arg_id("foo:").name.size() == 3, "");
-}
-
-template <size_t N> constexpr auto parse_test_specs(const char (&s)[N]) {
- auto ctx = fmt::detail::compile_parse_context<char>(fmt::string_view(s, N),
- 43, nullptr);
- auto specs = fmt::detail::dynamic_format_specs<>();
- fmt::detail::parse_format_specs(s, s + N - 1, specs, ctx,
- fmt::detail::type::float_type);
- return specs;
-}
-
-TEST(base_test, constexpr_parse_format_specs) {
- static_assert(parse_test_specs("<").align() == fmt::align::left, "");
- static_assert(parse_test_specs("*^").fill_unit<char>() == '*', "");
- static_assert(parse_test_specs("+").sign() == fmt::sign::plus, "");
- static_assert(parse_test_specs("-").sign() == fmt::sign::none, "");
- static_assert(parse_test_specs(" ").sign() == fmt::sign::space, "");
- static_assert(parse_test_specs("#").alt(), "");
- static_assert(parse_test_specs("0").align() == fmt::align::numeric, "");
- static_assert(parse_test_specs("L").localized(), "");
- static_assert(parse_test_specs("42").width == 42, "");
- static_assert(parse_test_specs("{42}").width_ref.index == 42, "");
- static_assert(parse_test_specs(".42").precision == 42, "");
- static_assert(parse_test_specs(".{42}").precision_ref.index == 42, "");
- static_assert(parse_test_specs("f").type() == fmt::presentation_type::fixed,
- "");
-}
-
-struct test_format_string_handler {
- constexpr void on_text(const char*, const char*) {}
-
- constexpr auto on_arg_id() -> int { return 0; }
-
- template <typename T> constexpr auto on_arg_id(T) -> int { return 0; }
-
- constexpr void on_replacement_field(int, const char*) {}
-
- constexpr auto on_format_specs(int, const char* begin, const char*) -> const
- char* {
- return begin;
- }
-
- constexpr void on_error(const char*) { error = true; }
-
- bool error = false;
-};
-
-template <size_t N> constexpr auto parse_string(const char (&s)[N]) -> bool {
- auto h = test_format_string_handler();
- fmt::detail::parse_format_string(fmt::string_view(s, N - 1), h);
- return !h.error;
-}
-
-TEST(base_test, constexpr_parse_format_string) {
- static_assert(parse_string("foo"), "");
- static_assert(!parse_string("}"), "");
- static_assert(parse_string("{}"), "");
- static_assert(parse_string("{42}"), "");
- static_assert(parse_string("{foo}"), "");
- static_assert(parse_string("{:}"), "");
-}
-
-#endif // FMT_USE_CONSTEXPR
-
-struct enabled_formatter {};
-struct enabled_ptr_formatter {};
-struct disabled_formatter {};
-struct disabled_formatter_convertible {
- operator int() const { return 42; }
-};
-
-FMT_BEGIN_NAMESPACE
-template <> struct formatter<enabled_formatter> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
- auto format(enabled_formatter, format_context& ctx) const
- -> decltype(ctx.out()) {
- return ctx.out();
- }
-};
-
-template <> struct formatter<enabled_ptr_formatter*> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
- auto format(enabled_ptr_formatter*, format_context& ctx) const
- -> decltype(ctx.out()) {
- return ctx.out();
- }
-};
-FMT_END_NAMESPACE
-
-struct const_formattable {};
-struct nonconst_formattable {};
-
-FMT_BEGIN_NAMESPACE
-template <> struct formatter<const_formattable> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
-
- auto format(const const_formattable&, format_context& ctx) const
- -> decltype(ctx.out()) {
- return copy("test", ctx.out());
- }
-};
-
-template <> struct formatter<nonconst_formattable> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
-
- auto format(nonconst_formattable&, format_context& ctx) const
- -> decltype(ctx.out()) {
- return copy("test", ctx.out());
- }
-};
-FMT_END_NAMESPACE
-
-struct convertible_to_pointer {
- operator const int*() const { return nullptr; }
-};
-
-struct convertible_to_pointer_formattable {
- operator const int*() const { return nullptr; }
-};
-
-FMT_BEGIN_NAMESPACE
-template <> struct formatter<convertible_to_pointer_formattable> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
-
- auto format(convertible_to_pointer_formattable, format_context& ctx) const
- -> decltype(ctx.out()) {
- return copy("test", ctx.out());
- }
-};
-FMT_END_NAMESPACE
-
-enum class unformattable_scoped_enum {};
-
-TEST(base_test, is_formattable) {
- EXPECT_FALSE(fmt::is_formattable<void>::value);
- EXPECT_FALSE(fmt::is_formattable<wchar_t>::value);
-#ifdef __cpp_char8_t
- EXPECT_FALSE(fmt::is_formattable<char8_t>::value);
-#endif
- EXPECT_FALSE(fmt::is_formattable<char16_t>::value);
- EXPECT_FALSE(fmt::is_formattable<char32_t>::value);
- EXPECT_FALSE(fmt::is_formattable<signed char*>::value);
- EXPECT_FALSE(fmt::is_formattable<unsigned char*>::value);
- EXPECT_FALSE(fmt::is_formattable<const signed char*>::value);
- EXPECT_FALSE(fmt::is_formattable<const unsigned char*>::value);
- EXPECT_FALSE(fmt::is_formattable<const wchar_t*>::value);
- EXPECT_FALSE(fmt::is_formattable<const wchar_t[3]>::value);
- EXPECT_FALSE(fmt::is_formattable<fmt::basic_string_view<wchar_t>>::value);
- EXPECT_FALSE(fmt::is_formattable<enabled_ptr_formatter*>::value);
- EXPECT_FALSE(fmt::is_formattable<disabled_formatter>::value);
- EXPECT_FALSE(fmt::is_formattable<disabled_formatter_convertible>::value);
-
- EXPECT_TRUE(fmt::is_formattable<enabled_formatter>::value);
- EXPECT_TRUE(fmt::is_formattable<const_formattable&>::value);
- EXPECT_TRUE(fmt::is_formattable<const const_formattable&>::value);
-
- EXPECT_TRUE(fmt::is_formattable<nonconst_formattable&>::value);
- EXPECT_FALSE(fmt::is_formattable<const nonconst_formattable&>::value);
-
- EXPECT_FALSE(fmt::is_formattable<convertible_to_pointer>::value);
- const auto f = convertible_to_pointer_formattable();
- auto str = std::string();
- fmt::format_to(std::back_inserter(str), "{}", f);
- EXPECT_EQ(str, "test");
-
- EXPECT_FALSE(fmt::is_formattable<void (*)()>::value);
-
- struct s;
- EXPECT_FALSE(fmt::is_formattable<int(s::*)>::value);
- EXPECT_FALSE(fmt::is_formattable<int (s::*)()>::value);
- EXPECT_FALSE(fmt::is_formattable<unformattable_scoped_enum>::value);
- EXPECT_FALSE(fmt::is_formattable<unformattable_scoped_enum>::value);
-}
-
-#ifdef __cpp_concepts
-TEST(base_test, formattable_concept) {
- static_assert(fmt::formattable<char>);
- static_assert(fmt::formattable<char&>);
- static_assert(fmt::formattable<char&&>);
- static_assert(fmt::formattable<const char>);
- static_assert(fmt::formattable<const char&>);
- static_assert(fmt::formattable<const char&&>);
- static_assert(fmt::formattable<int>);
- static_assert(!fmt::formattable<wchar_t>);
-}
-#endif
-
-TEST(base_test, format_to) {
- auto s = std::string();
- fmt::format_to(std::back_inserter(s), "{}", 42);
- EXPECT_EQ(s, "42");
-}
-
-TEST(base_test, format_to_array) {
- char buffer[4];
- auto result = fmt::format_to(buffer, "{}", 12345);
- EXPECT_EQ(std::distance(&buffer[0], result.out), 4);
- EXPECT_TRUE(result.truncated);
- EXPECT_EQ(result.out, buffer + 4);
- EXPECT_EQ(fmt::string_view(buffer, 4), "1234");
-
- char* out = nullptr;
- EXPECT_THROW(out = result, std::runtime_error);
- (void)out;
-
- result = fmt::format_to(buffer, "{:s}", "foobar");
- EXPECT_EQ(std::distance(&buffer[0], result.out), 4);
- EXPECT_TRUE(result.truncated);
- EXPECT_EQ(result.out, buffer + 4);
- EXPECT_EQ(fmt::string_view(buffer, 4), "foob");
-
- buffer[0] = 'x';
- buffer[1] = 'x';
- buffer[2] = 'x';
- buffer[3] = 'x';
- result = fmt::format_to(buffer, "{}", 'A');
- EXPECT_EQ(std::distance(&buffer[0], result.out), 1);
- EXPECT_FALSE(result.truncated);
- EXPECT_EQ(result.out, buffer + 1);
- EXPECT_EQ(fmt::string_view(buffer, 4), "Axxx");
-
- result = fmt::format_to(buffer, "{}{} ", 'B', 'C');
- EXPECT_EQ(std::distance(&buffer[0], result.out), 3);
- EXPECT_FALSE(result.truncated);
- EXPECT_EQ(result.out, buffer + 3);
- EXPECT_EQ(fmt::string_view(buffer, 4), "BC x");
-
- result = fmt::format_to(buffer, "{}", "ABCDE");
- EXPECT_EQ(std::distance(&buffer[0], result.out), 4);
- EXPECT_TRUE(result.truncated);
- EXPECT_EQ(fmt::string_view(buffer, 4), "ABCD");
-
- result = fmt::format_to(buffer, "{}", std::string(1000, '*').c_str());
- EXPECT_EQ(std::distance(&buffer[0], result.out), 4);
- EXPECT_TRUE(result.truncated);
- EXPECT_EQ(fmt::string_view(buffer, 4), "****");
-}
-
-// Test that check is not found by ADL.
-template <typename T> void check(T);
-TEST(base_test, adl_check) {
- auto s = std::string();
- fmt::format_to(std::back_inserter(s), "{}", test_struct());
- EXPECT_EQ(s, "test");
-}
-
-struct implicitly_convertible_to_string_view {
- operator fmt::string_view() const { return "foo"; }
-};
-
-TEST(base_test, no_implicit_conversion_to_string_view) {
- EXPECT_FALSE(
- fmt::is_formattable<implicitly_convertible_to_string_view>::value);
-}
-
-struct explicitly_convertible_to_string_view {
- explicit operator fmt::string_view() const { return "foo"; }
-};
-
-TEST(base_test, format_explicitly_convertible_to_string_view) {
- // Types explicitly convertible to string_view are not formattable by
- // default because it may introduce ODR violations.
- static_assert(
- !fmt::is_formattable<explicitly_convertible_to_string_view>::value, "");
-}
-
-#if FMT_CPLUSPLUS >= 201703L
-struct implicitly_convertible_to_std_string_view {
- operator std::string_view() const { return "foo"; }
-};
-
-TEST(base_test, no_implicit_conversion_to_std_string_view) {
- EXPECT_FALSE(
- fmt::is_formattable<implicitly_convertible_to_std_string_view>::value);
-}
-
-struct explicitly_convertible_to_std_string_view {
- explicit operator std::string_view() const { return "foo"; }
-};
-
-TEST(base_test, format_explicitly_convertible_to_std_string_view) {
- // Types explicitly convertible to string_view are not formattable by
- // default because it may introduce ODR violations.
- static_assert(
- !fmt::is_formattable<explicitly_convertible_to_std_string_view>::value,
- "");
-}
-#endif // FMT_CPLUSPLUS >= 201703L
-
-TEST(base_test, has_formatter) {
- EXPECT_TRUE((fmt::detail::has_formatter<const const_formattable, char>()));
- EXPECT_FALSE(
- (fmt::detail::has_formatter<const nonconst_formattable, char>()));
-}
-
-TEST(base_test, format_nonconst) {
- auto s = std::string();
- fmt::format_to(std::back_inserter(s), "{}", nonconst_formattable());
- EXPECT_EQ(s, "test");
-}
-
-TEST(base_test, throw_in_buffer_dtor) {
- constexpr int buffer_size = 256;
-
- struct throwing_iterator {
- int& count;
-
- auto operator=(char) -> throwing_iterator& {
- if (++count > buffer_size) throw std::exception();
- return *this;
- }
- auto operator*() -> throwing_iterator& { return *this; }
- auto operator++() -> throwing_iterator& { return *this; }
- auto operator++(int) -> throwing_iterator { return *this; }
- };
-
- try {
- int count = 0;
- fmt::format_to(throwing_iterator{count}, fmt::runtime("{:{}}{"), "",
- buffer_size + 1);
- } catch (const std::exception&) {
- }
-}
-
-struct convertible_to_any_type_with_member_x {
- template <typename T> operator T() const {
- auto v = T();
- v.x = 42;
- return v;
- }
-};
-
-FMT_BEGIN_NAMESPACE
-template <> struct formatter<convertible_to_any_type_with_member_x> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> decltype(ctx.begin()) {
- return ctx.begin();
- }
-
- auto format(convertible_to_any_type_with_member_x, format_context& ctx) const
- -> decltype(ctx.out()) const {
- auto out = ctx.out();
- *out++ = 'x';
- return out;
- }
-};
-FMT_END_NAMESPACE
-
-TEST(base_test, promiscuous_conversions) {
- auto s = std::string();
- fmt::format_to(std::back_inserter(s), "{}",
- convertible_to_any_type_with_member_x());
- EXPECT_EQ(s, "x");
-}
-
-struct custom_container {
- char data;
-
- using value_type = char;
-
- auto size() const -> size_t { return 0; }
- void resize(size_t) {}
-
- void push_back(char) {}
- auto operator[](size_t) -> char& { return data; }
-};
-
-FMT_BEGIN_NAMESPACE
-template <> struct is_contiguous<custom_container> : std::true_type {};
-FMT_END_NAMESPACE
-
-TEST(base_test, format_to_custom_container) {
- auto c = custom_container();
- fmt::format_to(std::back_inserter(c), "");
-}
-
-TEST(base_test, no_repeated_format_string_conversions) {
- struct nondeterministic_format_string {
- mutable int i = 0;
- FMT_CONSTEXPR operator fmt::string_view() const {
- return {"{}", i++ != 0 ? 2u : 0u};
- }
- };
-
-#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 1200
- char buf[10];
- fmt::format_to(buf, nondeterministic_format_string());
-#endif
-}
-
-TEST(base_test, format_context_accessors) {
- auto copy = [](fmt::appender app, const fmt::format_context& ctx) {
- return fmt::format_context(app, ctx.args(), ctx.locale());
- };
- fmt::detail::ignore_unused(copy);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2026-04-25 03:42:30 +0000