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test: add test case

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This commit is contained in:
Yat Ho 2026-06-25 09:22:34 +08:00
parent 74343496d7
commit 28a50d55ab
1 changed files with 20 additions and 0 deletions
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20
test/base-test.cc
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@ -874,6 +874,25 @@ struct custom_container {
auto operator[](size_t) -> char& { return data; }
};
struct phantom_subscript_operator_container
{
std::vector<char> buffer_;
using value_type = char;
FMT_NODISCARD auto size() const noexcept -> size_t { return buffer_.size(); }
FMT_NODISCARD auto data() noexcept -> char* { return buffer_.data(); }
FMT_NODISCARD auto data() const noexcept -> char const* { return buffer_.data(); }
void resize(size_t n) { buffer_.resize(n); }
void push_back(char const& value) { buffer_.push_back(value); }
FMT_NODISCARD operator char const*() const noexcept { return data(); }
};
FMT_BEGIN_NAMESPACE
template <> struct is_contiguous<custom_container> : std::true_type {};
FMT_END_NAMESPACE
@ -884,6 +903,7 @@ TEST(base_test, is_contiguous) {
EXPECT_TRUE((fmt::is_contiguous<fmt::string_view>::value));
EXPECT_TRUE((fmt::is_contiguous<std::vector<char>>::value));
EXPECT_FALSE((fmt::is_contiguous<std::list<char>>::value));
EXPECT_FALSE((fmt::is_contiguous<phantom_subscript_operator_container>::value));
}
TEST(base_test, format_to_custom_container) {