Drop range limit and cleanup tests
This commit is contained in:
Victor Zverovich
parent
c738c3431f
commit
38bcc04a11
@ -17,11 +17,6 @@
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#include "format.h"
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// output only up to N items from the range.
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#ifndef FMT_RANGE_OUTPUT_LENGTH_LIMIT
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# define FMT_RANGE_OUTPUT_LENGTH_LIMIT 256
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#endif
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FMT_BEGIN_NAMESPACE
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template <typename Char> struct formatting_base {
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@ -33,9 +28,6 @@ template <typename Char> struct formatting_base {
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template <typename Char, typename Enable = void>
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struct formatting_range : formatting_base<Char> {
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static FMT_CONSTEXPR_DECL const size_t range_length_limit =
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FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the
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// range.
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Char prefix = '{';
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Char postfix = '}';
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};
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@ -360,10 +352,7 @@ struct formatter<
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for (; it != end; ++it) {
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if (i > 0) out = detail::write_delimiter(out);
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out = detail::write_range_entry<Char>(out, *it);
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if (++i > formatting.range_length_limit) {
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out = format_to(out, FMT_STRING("{}"), " ... <other elements>");
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break;
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}
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++i;
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}
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return detail::copy(formatting.postfix, out);
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}
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@ -44,69 +44,65 @@ TEST(ranges_test, format_array_of_literals) {
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#endif // FMT_RANGES_TEST_ENABLE_C_STYLE_ARRAY
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TEST(ranges_test, format_vector) {
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std::vector<int32_t> iv{1, 2, 3, 5, 7, 11};
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auto ivf = fmt::format("{}", iv);
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EXPECT_EQ("{1, 2, 3, 5, 7, 11}", ivf);
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auto v = std::vector<int>{1, 2, 3, 5, 7, 11};
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EXPECT_EQ(fmt::format("{}", v), "{1, 2, 3, 5, 7, 11}");
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}
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TEST(ranges_test, format_vector2) {
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std::vector<std::vector<int32_t>> ivv{{1, 2}, {3, 5}, {7, 11}};
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auto ivf = fmt::format("{}", ivv);
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EXPECT_EQ("{{1, 2}, {3, 5}, {7, 11}}", ivf);
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auto v = std::vector<std::vector<int>>{{1, 2}, {3, 5}, {7, 11}};
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EXPECT_EQ(fmt::format("{}", v), "{{1, 2}, {3, 5}, {7, 11}}");
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}
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TEST(ranges_test, FormatMap) {
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std::map<std::string, int32_t> simap{{"one", 1}, {"two", 2}};
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EXPECT_EQ("{(\"one\", 1), (\"two\", 2)}", fmt::format("{}", simap));
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TEST(ranges_test, format_map) {
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auto m = std::map<std::string, int>{{"one", 1}, {"two", 2}};
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EXPECT_EQ(fmt::format("{}", m), "{(\"one\", 1), (\"two\", 2)}");
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}
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TEST(ranges_test, FormatPair) {
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std::pair<int64_t, float> pa1{42, 1.5f};
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EXPECT_EQ("(42, 1.5)", fmt::format("{}", pa1));
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TEST(ranges_test, format_pair) {
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auto p = std::pair<int, float>(42, 1.5f);
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EXPECT_EQ(fmt::format("{}", p), "(42, 1.5)");
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}
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TEST(ranges_test, FormatTuple) {
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std::tuple<int64_t, float, std::string, char> t{42, 1.5f, "this is tuple",
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'i'};
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EXPECT_EQ("(42, 1.5, \"this is tuple\", 'i')", fmt::format("{}", t));
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EXPECT_EQ("()", fmt::format("{}", std::tuple<>()));
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TEST(ranges_test, format_tuple) {
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auto t =
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std::tuple<int, float, std::string, char>(42, 1.5f, "this is tuple", 'i');
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EXPECT_EQ(fmt::format("{}", t), "(42, 1.5, \"this is tuple\", 'i')");
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EXPECT_EQ(fmt::format("{}", std::tuple<>()), "()");
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}
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#ifdef FMT_RANGES_TEST_ENABLE_FORMAT_STRUCT
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struct my_struct {
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int32_t i;
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std::string str; // can throw
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template <size_t N> fmt::enable_if_t<N == 0, int32_t> get() const noexcept {
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struct tuple_like {
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int i;
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std::string str;
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template <size_t N> fmt::enable_if_t<N == 0, int> get() const noexcept {
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return i;
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}
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template <size_t N>
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fmt::enable_if_t<N == 1, fmt::string_view> get() const noexcept {
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return {str};
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return str;
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}
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};
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template <size_t N>
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auto get(const my_struct& s) noexcept -> decltype(s.get<N>()) {
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return s.get<N>();
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auto get(const tuple_like& t) noexcept -> decltype(t.get<N>()) {
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return t.get<N>();
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}
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namespace std {
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template <>
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struct std::tuple_size<tuple_like> : std::integral_constant<size_t, 2> {};
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template <> struct tuple_size<my_struct> : std::integral_constant<size_t, 2> {};
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template <size_t N> struct tuple_element<N, my_struct> {
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using type = decltype(std::declval<my_struct>().get<N>());
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template <size_t N> struct std::tuple_element<N, tuple_like> {
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using type = decltype(std::declval<tuple_like>().get<N>());
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};
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} // namespace std
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TEST(ranges_test, FormatStruct) {
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my_struct mst{13, "my struct"};
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EXPECT_EQ("(13, \"my struct\")", fmt::format("{}", mst));
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TEST(ranges_test, format_struct) {
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auto t = tuple_like{42, "foo"};
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EXPECT_EQ(fmt::format("{}", t), "(42, \"foo\")");
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}
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#endif // FMT_RANGES_TEST_ENABLE_FORMAT_STRUCT
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TEST(ranges_test, FormatTo) {
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TEST(ranges_test, format_to) {
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char buf[10];
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auto end = fmt::format_to(buf, "{}", std::vector<int>{1, 2, 3});
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*end = '\0';
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@ -120,7 +116,7 @@ struct path_like {
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operator std::string() const;
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};
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TEST(ranges_test, PathLike) {
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TEST(ranges_test, path_like) {
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EXPECT_FALSE((fmt::is_range<path_like, char>::value));
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}
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@ -132,15 +128,15 @@ struct string_like {
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explicit operator std::string_view() const { return "foo"; }
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};
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TEST(ranges_test, FormatStringLike) {
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EXPECT_EQ("foo", fmt::format("{}", string_like()));
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TEST(ranges_test, format_string_like) {
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EXPECT_EQ(fmt::format("{}", string_like()), "foo");
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}
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#endif // FMT_USE_STRING_VIEW
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// A range that provides non-const only begin()/end() to test fmt::join handles
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// that
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// that.
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//
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// Some ranges (eg those produced by range-v3's views::filter()) can cache
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// Some ranges (e.g. those produced by range-v3's views::filter()) can cache
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// information during iteration so they only provide non-const begin()/end().
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template <typename T> class non_const_only_range {
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private:
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@ -151,7 +147,7 @@ template <typename T> class non_const_only_range {
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template <typename... Args>
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explicit non_const_only_range(Args&&... args)
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: vec(::std::forward<Args>(args)...) {}
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: vec(std::forward<Args>(args)...) {}
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const_iterator begin() { return vec.begin(); }
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const_iterator end() { return vec.end(); }
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@ -166,7 +162,7 @@ template <typename T> class noncopyable_range {
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template <typename... Args>
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explicit noncopyable_range(Args&&... args)
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: vec(::std::forward<Args>(args)...) {}
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: vec(std::forward<Args>(args)...) {}
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noncopyable_range(noncopyable_range const&) = delete;
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noncopyable_range(noncopyable_range&) = delete;
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@ -175,75 +171,61 @@ template <typename T> class noncopyable_range {
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const_iterator end() const { return vec.end(); }
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};
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TEST(ranges_test, Range) {
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TEST(ranges_test, range) {
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noncopyable_range<int> w(3u, 0);
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", w));
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", noncopyable_range<int>(3u, 0)));
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EXPECT_EQ(fmt::format("{}", w), "{0, 0, 0}");
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EXPECT_EQ(fmt::format("{}", noncopyable_range<int>(3u, 0)), "{0, 0, 0}");
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non_const_only_range<int> x(3u, 0);
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", x));
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", non_const_only_range<int>(3u, 0)));
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EXPECT_EQ(fmt::format("{}", x), "{0, 0, 0}");
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EXPECT_EQ(fmt::format("{}", non_const_only_range<int>(3u, 0)), "{0, 0, 0}");
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std::vector<int> y(3u, 0);
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", y));
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", std::vector<int>(3u, 0)));
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auto y = std::vector<int>(3u, 0);
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EXPECT_EQ(fmt::format("{}", y), "{0, 0, 0}");
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EXPECT_EQ(fmt::format("{}", std::vector<int>(3u, 0)), "{0, 0, 0}");
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const std::vector<int> z(3u, 0);
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EXPECT_EQ("{0, 0, 0}", fmt::format("{}", z));
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const auto z = std::vector<int>(3u, 0);
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EXPECT_EQ(fmt::format("{}", z), "{0, 0, 0}");
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}
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#if !FMT_MSC_VER || FMT_MSC_VER >= 1927
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struct unformattable {};
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TEST(ranges_test, UnformattableRange) {
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TEST(ranges_test, unformattable_range) {
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EXPECT_FALSE((fmt::has_formatter<std::vector<unformattable>,
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fmt::format_context>::value));
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}
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#endif
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#ifdef FMT_RANGES_TEST_ENABLE_JOIN
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TEST(ranges_test, JoinTuple) {
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// Value tuple args
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std::tuple<char, int, float> t1 = std::make_tuple('a', 1, 2.0f);
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EXPECT_EQ("(a, 1, 2)", fmt::format("({})", fmt::join(t1, ", ")));
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TEST(ranges_test, join_tuple) {
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// Value tuple args.
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auto t1 = std::tuple<char, int, float>('a', 1, 2.0f);
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EXPECT_EQ(fmt::format("({})", fmt::join(t1, ", ")), "(a, 1, 2)");
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// Testing lvalue tuple args
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// Testing lvalue tuple args.
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int x = 4;
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std::tuple<char, int&> t2{'b', x};
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EXPECT_EQ("b + 4", fmt::format("{}", fmt::join(t2, " + ")));
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auto t2 = std::tuple<char, int&>('b', x);
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EXPECT_EQ(fmt::format("{}", fmt::join(t2, " + ")), "b + 4");
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// Empty tuple
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std::tuple<> t3;
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EXPECT_EQ("", fmt::format("{}", fmt::join(t3, "|")));
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// Empty tuple.
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auto t3 = std::tuple<>();
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EXPECT_EQ(fmt::format("{}", fmt::join(t3, "|")), "");
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// Single element tuple
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std::tuple<float> t4{4.0f};
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EXPECT_EQ("4", fmt::format("{}", fmt::join(t4, "/")));
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// Single element tuple.
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auto t4 = std::tuple<float>(4.0f);
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EXPECT_EQ(fmt::format("{}", fmt::join(t4, "/")), "4");
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}
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TEST(ranges_test, WideStringJoinTuple) {
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// Value tuple args
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std::tuple<wchar_t, int, float> t1 = std::make_tuple('a', 1, 2.0f);
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EXPECT_EQ(L"(a, 1, 2)", fmt::format(L"({})", fmt::join(t1, L", ")));
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// Testing lvalue tuple args
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int x = 4;
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std::tuple<wchar_t, int&> t2{'b', x};
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EXPECT_EQ(L"b + 4", fmt::format(L"{}", fmt::join(t2, L" + ")));
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// Empty tuple
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std::tuple<> t3;
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EXPECT_EQ(L"", fmt::format(L"{}", fmt::join(t3, L"|")));
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// Single element tuple
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std::tuple<float> t4{4.0f};
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EXPECT_EQ(L"4", fmt::format(L"{}", fmt::join(t4, L"/")));
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TEST(ranges_test, wide_string_join_tuple) {
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auto t = std::tuple<wchar_t, int, float>('a', 1, 2.0f);
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EXPECT_EQ(fmt::format(L"({})", fmt::join(t, L", ")), L"(a, 1, 2)");
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}
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TEST(ranges_test, JoinInitializerList) {
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EXPECT_EQ("1, 2, 3", fmt::format("{}", fmt::join({1, 2, 3}, ", ")));
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EXPECT_EQ("fmt rocks !",
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fmt::format("{}", fmt::join({"fmt", "rocks", "!"}, " ")));
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TEST(ranges_test, join_initializer_list) {
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EXPECT_EQ(fmt::format("{}", fmt::join({1, 2, 3}, ", ")), "1, 2, 3");
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EXPECT_EQ(fmt::format("{}", fmt::join({"fmt", "rocks", "!"}, " ")),
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"fmt rocks !");
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}
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struct zstring_sentinel {};
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@ -257,30 +239,29 @@ struct zstring {
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zstring_sentinel end() const { return {}; }
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};
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TEST(ranges_test, JoinSentinel) {
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zstring hello{"hello"};
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EXPECT_EQ("{'h', 'e', 'l', 'l', 'o'}", fmt::format("{}", hello));
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EXPECT_EQ("h_e_l_l_o", fmt::format("{}", fmt::join(hello, "_")));
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TEST(ranges_test, join_sentinel) {
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auto hello = zstring{"hello"};
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EXPECT_EQ(fmt::format("{}", hello), "{'h', 'e', 'l', 'l', 'o'}");
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EXPECT_EQ(fmt::format("{}", fmt::join(hello, "_")), "h_e_l_l_o");
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}
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TEST(ranges_test, JoinRange) {
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TEST(ranges_test, join_range) {
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noncopyable_range<int> w(3u, 0);
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EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(w, ",")));
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EXPECT_EQ("0,0,0",
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fmt::format("{}", fmt::join(noncopyable_range<int>(3u, 0), ",")));
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EXPECT_EQ(fmt::format("{}", fmt::join(w, ",")), "0,0,0");
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EXPECT_EQ(fmt::format("{}", fmt::join(noncopyable_range<int>(3u, 0), ",")),
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"0,0,0");
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non_const_only_range<int> x(3u, 0);
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EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(x, ",")));
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EXPECT_EQ(
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"0,0,0",
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fmt::format("{}", fmt::join(non_const_only_range<int>(3u, 0), ",")));
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EXPECT_EQ(fmt::format("{}", fmt::join(x, ",")), "0,0,0");
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EXPECT_EQ(fmt::format("{}", fmt::join(non_const_only_range<int>(3u, 0), ",")),
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"0,0,0");
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std::vector<int> y(3u, 0);
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EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(y, ",")));
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EXPECT_EQ("0,0,0",
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fmt::format("{}", fmt::join(std::vector<int>(3u, 0), ",")));
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auto y = std::vector<int>(3u, 0);
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EXPECT_EQ(fmt::format("{}", fmt::join(y, ",")), "0,0,0");
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EXPECT_EQ(fmt::format("{}", fmt::join(std::vector<int>(3u, 0), ",")),
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"0,0,0");
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const std::vector<int> z(3u, 0);
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EXPECT_EQ("0,0,0", fmt::format("{}", fmt::join(z, ",")));
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const auto z = std::vector<int>(3u, 0);
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EXPECT_EQ(fmt::format("{}", fmt::join(z, ",")), "0,0,0");
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}
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#endif // FMT_RANGES_TEST_ENABLE_JOIN
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