Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 613 insertions, 0 deletions

diff --git a/src/seastar/fmt/test/core-test.cc b/src/seastar/fmt/test/core-test.cc
new file mode 100644
index 00000000..fe7583ba
--- /dev/null
+++ b/src/seastar/fmt/test/core-test.cc
@@ -0,0 +1,613 @@
+// Formatting library for C++ - core tests
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#include <algorithm>
+#include <climits>
+#include <cstring>
+#include <functional>
+#include <iterator>
+#include <limits>
+#include <string>
+#include <type_traits>
+#include <memory>
+
+#include "test-assert.h"
+
+#include "gmock.h"
+
+// Check if fmt/core.h compiles with windows.h included before it.
+#ifdef _WIN32
+# include <windows.h>
+#endif
+
+#include "fmt/core.h"
+
+#undef min
+#undef max
+
+using fmt::basic_format_arg;
+using fmt::internal::basic_buffer;
+using fmt::internal::value;
+using fmt::string_view;
+
+using testing::_;
+using testing::StrictMock;
+
+namespace {
+
+struct test_struct {};
+
+template <typename Context, typename T>
+basic_format_arg<Context> make_arg(const T &value) {
+  return fmt::internal::make_arg<Context>(value);
+}
+}  // namespace
+
+FMT_BEGIN_NAMESPACE
+template <typename Char>
+struct formatter<test_struct, Char> {
+  template <typename ParseContext>
+  auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+
+  typedef std::back_insert_iterator<basic_buffer<Char>> iterator;
+
+  auto format(test_struct, basic_format_context<iterator, char> &ctx)
+      -> decltype(ctx.out()) {
+    const Char *test = "test";
+    return std::copy_n(test, std::strlen(test), ctx.out());
+  }
+};
+FMT_END_NAMESPACE
+
+#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 470
+TEST(BufferTest, Noncopyable) {
+  EXPECT_FALSE(std::is_copy_constructible<basic_buffer<char> >::value);
+#if !FMT_MSC_VER
+  // std::is_copy_assignable is broken in MSVC2013.
+  EXPECT_FALSE(std::is_copy_assignable<basic_buffer<char> >::value);
+#endif
+}
+
+TEST(BufferTest, Nonmoveable) {
+  EXPECT_FALSE(std::is_move_constructible<basic_buffer<char> >::value);
+#if !FMT_MSC_VER
+  // std::is_move_assignable is broken in MSVC2013.
+  EXPECT_FALSE(std::is_move_assignable<basic_buffer<char> >::value);
+#endif
+}
+#endif
+
+// A test buffer with a dummy grow method.
+template <typename T>
+struct test_buffer : basic_buffer<T> {
+  void grow(std::size_t capacity) { this->set(FMT_NULL, capacity); }
+};
+
+template <typename T>
+struct mock_buffer : basic_buffer<T> {
+  MOCK_METHOD1(do_grow, void (std::size_t capacity));
+
+  void grow(std::size_t capacity) {
+    this->set(this->data(), capacity);
+    do_grow(capacity);
+  }
+
+  mock_buffer() {}
+  mock_buffer(T *data) { this->set(data, 0); }
+  mock_buffer(T *data, std::size_t capacity) { this->set(data, capacity); }
+};
+
+TEST(BufferTest, Ctor) {
+  {
+    mock_buffer<int> buffer;
+    EXPECT_EQ(FMT_NULL, &buffer[0]);
+    EXPECT_EQ(static_cast<size_t>(0), buffer.size());
+    EXPECT_EQ(static_cast<size_t>(0), buffer.capacity());
+  }
+  {
+    int dummy;
+    mock_buffer<int> buffer(&dummy);
+    EXPECT_EQ(&dummy, &buffer[0]);
+    EXPECT_EQ(static_cast<size_t>(0), buffer.size());
+    EXPECT_EQ(static_cast<size_t>(0), buffer.capacity());
+  }
+  {
+    int dummy;
+    std::size_t capacity = std::numeric_limits<std::size_t>::max();
+    mock_buffer<int> buffer(&dummy, capacity);
+    EXPECT_EQ(&dummy, &buffer[0]);
+    EXPECT_EQ(static_cast<size_t>(0), buffer.size());
+    EXPECT_EQ(capacity, buffer.capacity());
+  }
+}
+
+struct dying_buffer : test_buffer<int> {
+  MOCK_METHOD0(die, void());
+  ~dying_buffer() { die(); }
+};
+
+TEST(BufferTest, VirtualDtor) {
+  typedef StrictMock<dying_buffer> stict_mock_buffer;
+  stict_mock_buffer *mock_buffer = new stict_mock_buffer();
+  EXPECT_CALL(*mock_buffer, die());
+  basic_buffer<int> *buffer = mock_buffer;
+  delete buffer;
+}
+
+TEST(BufferTest, Access) {
+  char data[10];
+  mock_buffer<char> buffer(data, sizeof(data));
+  buffer[0] = 11;
+  EXPECT_EQ(11, buffer[0]);
+  buffer[3] = 42;
+  EXPECT_EQ(42, *(&buffer[0] + 3));
+  const basic_buffer<char> &const_buffer = buffer;
+  EXPECT_EQ(42, const_buffer[3]);
+}
+
+TEST(BufferTest, Resize) {
+  char data[123];
+  mock_buffer<char> buffer(data, sizeof(data));
+  buffer[10] = 42;
+  EXPECT_EQ(42, buffer[10]);
+  buffer.resize(20);
+  EXPECT_EQ(20u, buffer.size());
+  EXPECT_EQ(123u, buffer.capacity());
+  EXPECT_EQ(42, buffer[10]);
+  buffer.resize(5);
+  EXPECT_EQ(5u, buffer.size());
+  EXPECT_EQ(123u, buffer.capacity());
+  EXPECT_EQ(42, buffer[10]);
+  // Check if resize calls grow.
+  EXPECT_CALL(buffer, do_grow(124));
+  buffer.resize(124);
+  EXPECT_CALL(buffer, do_grow(200));
+  buffer.resize(200);
+}
+
+TEST(BufferTest, Clear) {
+  test_buffer<char> buffer;
+  buffer.resize(20);
+  buffer.resize(0);
+  EXPECT_EQ(static_cast<size_t>(0), buffer.size());
+  EXPECT_EQ(20u, buffer.capacity());
+}
+
+TEST(BufferTest, Append) {
+  char data[15];
+  mock_buffer<char> buffer(data, 10);
+  const char *test = "test";
+  buffer.append(test, test + 5);
+  EXPECT_STREQ(test, &buffer[0]);
+  EXPECT_EQ(5u, buffer.size());
+  buffer.resize(10);
+  EXPECT_CALL(buffer, do_grow(12));
+  buffer.append(test, test + 2);
+  EXPECT_EQ('t', buffer[10]);
+  EXPECT_EQ('e', buffer[11]);
+  EXPECT_EQ(12u, buffer.size());
+}
+
+TEST(BufferTest, AppendAllocatesEnoughStorage) {
+  char data[19];
+  mock_buffer<char> buffer(data, 10);
+  const char *test = "abcdefgh";
+  buffer.resize(10);
+  EXPECT_CALL(buffer, do_grow(19));
+  buffer.append(test, test + 9);
+}
+
+TEST(ArgTest, FormatArgs) {
+  fmt::format_args args;
+  EXPECT_FALSE(args.get(1));
+}
+
+struct custom_context {
+  typedef char char_type;
+
+  template <typename T>
+  struct formatter_type {
+    struct type {
+      template <typename ParseContext>
+      auto parse(ParseContext &ctx) -> decltype(ctx.begin()) {
+        return ctx.begin();
+      }
+
+      const char *format(const T &, custom_context& ctx) {
+        ctx.called = true;
+        return FMT_NULL;
+      }
+    };
+  };
+
+  bool called;
+
+  fmt::format_parse_context parse_context() {
+    return fmt::format_parse_context("");
+  }
+  void advance_to(const char *) {}
+};
+
+TEST(ArgTest, MakeValueWithCustomContext) {
+  test_struct t;
+  fmt::internal::value<custom_context> arg =
+      fmt::internal::make_value<custom_context>(t);
+  custom_context ctx = {false};
+  arg.custom.format(&t, ctx);
+  EXPECT_TRUE(ctx.called);
+}
+
+FMT_BEGIN_NAMESPACE
+namespace internal {
+template <typename Char>
+bool operator==(custom_value<Char> lhs, custom_value<Char> rhs) {
+  return lhs.value == rhs.value;
+}
+}
+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 { typedef test_result type; };
+
+  mock_visitor() {
+    ON_CALL(*this, visit(_)).WillByDefault(testing::Return(test_result()));
+  }
+
+  MOCK_METHOD1_T(visit, test_result (T value));
+  MOCK_METHOD0_T(unexpected, void ());
+
+  test_result operator()(T value) { return visit(value); }
+
+  template <typename U>
+  test_result operator()(U) {
+    unexpected();
+    return test_result();
+  }
+};
+
+template <typename T>
+struct visit_type { typedef T Type; };
+
+#define VISIT_TYPE(Type_, visit_type_) \
+  template <> \
+  struct visit_type<Type_> { typedef visit_type_ 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
+
+VISIT_TYPE(float, double);
+
+#define CHECK_ARG_(Char, expected, value) { \
+  testing::StrictMock<mock_visitor<decltype(expected)>> visitor; \
+  EXPECT_CALL(visitor, visit(expected)); \
+  typedef std::back_insert_iterator<basic_buffer<Char>> iterator; \
+  fmt::visit(visitor, \
+      make_arg<fmt::basic_format_context<iterator, Char>>(value)); \
+}
+
+#define CHECK_ARG(value, typename_) { \
+  typedef decltype(value) value_type; \
+  typename_ visit_type<value_type>::Type expected = value; \
+  CHECK_ARG_(char, expected, value) \
+  CHECK_ARG_(wchar_t, expected, value) \
+}
+
+template <typename T>
+class NumericArgTest : public testing::Test {};
+
+typedef ::testing::Types<
+  bool, signed char, unsigned char, signed, unsigned short,
+  int, unsigned, long, unsigned long, long long, unsigned long long,
+  float, double, long double> Types;
+TYPED_TEST_CASE(NumericArgTest, Types);
+
+template <typename T>
+typename std::enable_if<std::is_integral<T>::value, T>::type test_value() {
+  return static_cast<T>(42);
+}
+
+template <typename T>
+typename std::enable_if<std::is_floating_point<T>::value, T>::type
+    test_value() {
+  return static_cast<T>(4.2);
+}
+
+TYPED_TEST(NumericArgTest, MakeAndVisit) {
+  CHECK_ARG(test_value<TypeParam>(), typename);
+  CHECK_ARG(std::numeric_limits<TypeParam>::min(), typename);
+  CHECK_ARG(std::numeric_limits<TypeParam>::max(), typename);
+}
+
+TEST(ArgTest, CharArg) {
+  CHECK_ARG_(char, 'a', 'a');
+  CHECK_ARG_(wchar_t, L'a', 'a');
+  CHECK_ARG_(wchar_t, L'a', L'a');
+}
+
+TEST(ArgTest, StringArg) {
+  char str_data[] = "test";
+  char *str = str_data;
+  const char *cstr = str;
+  CHECK_ARG_(char, cstr, str);
+
+  string_view sref(str);
+  CHECK_ARG_(char, sref, std::string(str));
+}
+
+TEST(ArgTest, WStringArg) {
+  wchar_t str_data[] = L"test";
+  wchar_t *str = str_data;
+  const wchar_t *cstr = str;
+
+  fmt::wstring_view sref(str);
+  CHECK_ARG_(wchar_t, cstr, str);
+  CHECK_ARG_(wchar_t, cstr, cstr);
+  CHECK_ARG_(wchar_t, sref, std::wstring(str));
+  CHECK_ARG_(wchar_t, sref, fmt::wstring_view(str));
+}
+
+TEST(ArgTest, PointerArg) {
+  void *p = FMT_NULL;
+  const void *cp = FMT_NULL;
+  CHECK_ARG_(char, cp, p);
+  CHECK_ARG_(wchar_t, cp, p);
+  CHECK_ARG(cp, );
+}
+
+struct check_custom {
+  test_result operator()(
+      fmt::basic_format_arg<fmt::format_context>::handle h) const {
+    struct test_buffer : fmt::internal::basic_buffer<char> {
+      char data[10];
+      test_buffer() : fmt::internal::basic_buffer<char>(data, 0, 10) {}
+      void grow(std::size_t) {}
+    } buffer;
+    fmt::internal::basic_buffer<char> &base = buffer;
+    fmt::format_context ctx(std::back_inserter(base), "", fmt::format_args());
+    h.format(ctx);
+    EXPECT_EQ("test", std::string(buffer.data, buffer.size()));
+    return test_result();
+  }
+};
+
+TEST(ArgTest, CustomArg) {
+  test_struct test;
+  typedef mock_visitor<fmt::basic_format_arg<fmt::format_context>::handle>
+    visitor;
+  testing::StrictMock<visitor> v;
+  EXPECT_CALL(v, visit(_)).WillOnce(testing::Invoke(check_custom()));
+  fmt::visit(v, make_arg<fmt::format_context>(test));
+}
+
+TEST(ArgTest, VisitInvalidArg) {
+  testing::StrictMock< mock_visitor<fmt::monostate> > visitor;
+  EXPECT_CALL(visitor, visit(_));
+  fmt::basic_format_arg<fmt::format_context> arg;
+  visit(visitor, arg);
+}
+
+TEST(StringViewTest, Length) {
+  // Test that StringRef::size() returns string length, not buffer size.
+  char str[100] = "some string";
+  EXPECT_EQ(std::strlen(str), string_view(str).size());
+  EXPECT_LT(std::strlen(str), sizeof(str));
+}
+
+// Check string_view's comparison operator.
+template <template <typename> class Op>
+void check_op() {
+  const char *inputs[] = {"foo", "fop", "fo"};
+  std::size_t num_inputs = sizeof(inputs) / sizeof(*inputs);
+  for (std::size_t i = 0; i < num_inputs; ++i) {
+    for (std::size_t j = 0; j < num_inputs; ++j) {
+      string_view lhs(inputs[i]), rhs(inputs[j]);
+      EXPECT_EQ(Op<int>()(lhs.compare(rhs), 0), Op<string_view>()(lhs, rhs));
+    }
+  }
+}
+
+TEST(StringViewTest, Compare) {
+  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);
+  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>();
+}
+
+enum basic_enum {};
+
+TEST(CoreTest, ConvertToInt) {
+  EXPECT_FALSE((fmt::convert_to_int<char, char>::value));
+  EXPECT_FALSE((fmt::convert_to_int<const char *, char>::value));
+  EXPECT_TRUE((fmt::convert_to_int<basic_enum, char>::value));
+}
+
+enum enum_with_underlying_type : char {};
+
+TEST(CoreTest, IsEnumConvertibleToInt) {
+  EXPECT_TRUE((fmt::convert_to_int<enum_with_underlying_type, char>::value));
+}
+
+namespace my_ns {
+template <typename Char>
+class my_string {
+ public:
+  my_string(const Char *s) : s_(s) {}
+  const Char * data() const FMT_NOEXCEPT { return s_.data(); }
+  std::size_t length() const FMT_NOEXCEPT { return s_.size(); }
+  operator const Char*() const { return s_.c_str(); }
+ private:
+  std::basic_string<Char> s_;
+};
+
+template <typename Char>
+inline fmt::basic_string_view<Char>
+    to_string_view(const my_string<Char> &s) FMT_NOEXCEPT {
+  return { s.data(), s.length() };
+}
+
+struct non_string {};
+}
+
+namespace FakeQt {
+class QString {
+ public:
+  QString(const wchar_t *s) : s_(std::make_shared<std::wstring>(s)) {}
+  const wchar_t *utf16() const FMT_NOEXCEPT { return s_->data(); }
+  int size() const FMT_NOEXCEPT { return static_cast<int>(s_->size()); }
+#ifdef FMT_STRING_VIEW
+  operator FMT_STRING_VIEW<wchar_t>() const FMT_NOEXCEPT { return *s_; }
+#endif
+ private:
+  std::shared_ptr<std::wstring> s_;
+};
+
+inline fmt::basic_string_view<wchar_t> to_string_view(
+    const QString &s) FMT_NOEXCEPT {
+  return {reinterpret_cast<const wchar_t *>(s.utf16()),
+          static_cast<std::size_t>(s.size())};
+}
+}
+
+template <typename T>
+class IsStringTest : public testing::Test {};
+
+typedef ::testing::Types<char, wchar_t, char16_t, char32_t> StringCharTypes;
+TYPED_TEST_CASE(IsStringTest, StringCharTypes);
+
+namespace {
+template <typename Char>
+struct derived_from_string_view : fmt::basic_string_view<Char> {};
+}
+
+TYPED_TEST(IsStringTest, IsString) {
+  EXPECT_TRUE((fmt::internal::is_string<TypeParam *>::value));
+  EXPECT_TRUE((fmt::internal::is_string<const TypeParam *>::value));
+  EXPECT_TRUE((fmt::internal::is_string<TypeParam[2]>::value));
+  EXPECT_TRUE((fmt::internal::is_string<const TypeParam[2]>::value));
+  EXPECT_TRUE((fmt::internal::is_string<std::basic_string<TypeParam>>::value));
+  EXPECT_TRUE(
+        (fmt::internal::is_string<fmt::basic_string_view<TypeParam>>::value));
+  EXPECT_TRUE(
+        (fmt::internal::is_string<derived_from_string_view<TypeParam>>::value));
+#ifdef FMT_STRING_VIEW
+  EXPECT_TRUE((fmt::internal::is_string<FMT_STRING_VIEW<TypeParam>>::value));
+#endif
+  EXPECT_TRUE((fmt::internal::is_string<my_ns::my_string<TypeParam>>::value));
+  EXPECT_FALSE((fmt::internal::is_string<my_ns::non_string>::value));
+  EXPECT_TRUE((fmt::internal::is_string<FakeQt::QString>::value));
+}
+
+TEST(CoreTest, Format) {
+  // This should work without including fmt/format.h.
+#ifdef FMT_FORMAT_H_
+# error fmt/format.h must not be included in the core test
+#endif
+  EXPECT_EQ(fmt::format("{}", 42), "42");
+}
+
+TEST(CoreTest, FormatTo) {
+  // This should work without including fmt/format.h.
+#ifdef FMT_FORMAT_H_
+# error fmt/format.h must not be included in the core test
+#endif
+  std::string s;
+  fmt::format_to(std::back_inserter(s), "{}", 42);
+  EXPECT_EQ(s, "42");
+}
+
+TEST(CoreTest, ToStringViewForeignStrings) {
+  using namespace my_ns;
+  using namespace FakeQt;
+  EXPECT_EQ(to_string_view(my_string<char>("42")), "42");
+  EXPECT_EQ(to_string_view(my_string<wchar_t>(L"42")), L"42");
+  EXPECT_EQ(to_string_view(QString(L"42")), L"42");
+  fmt::internal::type type =
+      fmt::internal::get_type<fmt::format_context, my_string<char>>::value;
+  EXPECT_EQ(type, fmt::internal::string_type);
+  type =
+      fmt::internal::get_type<fmt::wformat_context, my_string<wchar_t>>::value;
+  EXPECT_EQ(type, fmt::internal::string_type);
+  type = fmt::internal::get_type<fmt::wformat_context, QString>::value;
+  EXPECT_EQ(type, fmt::internal::string_type);
+  // Does not compile: only wide format contexts are compatible with QString!
+  // type = fmt::internal::get_type<fmt::format_context, QString>::value;
+}
+
+TEST(CoreTest, FormatForeignStrings) {
+  using namespace my_ns;
+  using namespace FakeQt;
+  EXPECT_EQ(fmt::format(my_string<char>("{}"), 42), "42");
+  EXPECT_EQ(fmt::format(my_string<wchar_t>(L"{}"), 42), L"42");
+  EXPECT_EQ(fmt::format(QString(L"{}"), 42), L"42");
+  EXPECT_EQ(fmt::format(QString(L"{}"), my_string<wchar_t>(L"42")), L"42");
+  EXPECT_EQ(fmt::format(my_string<wchar_t>(L"{}"), QString(L"42")), L"42");
+}
+
+struct implicitly_convertible_to_string_view {
+  operator fmt::string_view() const { return "foo"; }
+};
+
+TEST(FormatterTest, FormatImplicitlyConvertibleToStringView) {
+  EXPECT_EQ("foo", fmt::format("{}", implicitly_convertible_to_string_view()));
+}
+
+// std::is_constructible is broken in MSVC until version 2015.
+#if FMT_USE_EXPLICIT && (!FMT_MSC_VER || FMT_MSC_VER >= 1900)
+struct explicitly_convertible_to_string_view {
+  explicit operator fmt::string_view() const { return "foo"; }
+};
+
+TEST(FormatterTest, FormatExplicitlyConvertibleToStringView) {
+  EXPECT_EQ("foo", fmt::format("{}", explicitly_convertible_to_string_view()));
+}
+
+struct explicitly_convertible_to_wstring_view {
+  explicit operator fmt::wstring_view() const { return L"foo"; }
+};
+
+TEST(FormatterTest, FormatExplicitlyConvertibleToWStringView) {
+  EXPECT_EQ(L"foo",
+            fmt::format(L"{}", explicitly_convertible_to_wstring_view()));
+}
+
+struct explicitly_convertible_to_string_like {
+  template <
+      typename String,
+      typename = typename std::enable_if<
+        std::is_constructible<String, const char*, std::size_t>::value>::type>
+  FMT_EXPLICIT operator String() const { return String("foo", 3u); }
+};
+
+TEST(FormatterTest, FormatExplicitlyConvertibleToStringLike) {
+  EXPECT_EQ("foo", fmt::format("{}", explicitly_convertible_to_string_like()));
+}
+#endif