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Mark the code of json_view that tests cannot reach

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The 4 GiB limit and the fallback for an input that parse() accepts but
the view rejects (a bug) are excluded from the coverage; shrink_to_fit()
of an empty document is tested.

Signed-off-by: Niels Lohmann <mail@nlohmann.me>
This commit is contained in:
Niels Lohmann
2026-09-29 02:33:58 +02:00
parent b1628423a6
commit 1d0d28c72f
4 changed files with 15 additions and 2 deletions
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6
single_include/nlohmann/json_view.hpp
View File

@@ -1635,9 +1635,12 @@ template<typename BasicJsonType>
{
if (f.code == error_code::input_too_large)
{
// LCOV_EXCL_START (4 GiB)
NLOHMANN_VIEW_THROW(out_of_range::create(416, "input of 4 GiB or more is not supported by json_document", nullptr));
// LCOV_EXCL_STOP
}
const BasicJsonType accepted = BasicJsonType::parse(src, src + size, nullptr, true, ignore_comments, ignore_trailing_commas);
// LCOV_EXCL_START (only if parse() accepts what the view rejects: a bug)
static_cast<void>(accepted);
position_t pos;
@@ -1654,6 +1657,7 @@ template<typename BasicJsonType>
}
pos.chars_read_current_line = off + 1 - line_start;
NLOHMANN_VIEW_THROW(parse_error::create(101, pos, "syntax error while parsing value", nullptr));
// LCOV_EXCL_STOP
}
} // namespace view
@@ -2486,7 +2490,7 @@ class basic_json_document
bool ok = false;
if (NLOHMANN_VIEW_UNLIKELY(size >= 0xFFFFFFF0u))
{
failure.code = detail::view::error_code::input_too_large;
failure.code = detail::view::error_code::input_too_large; // LCOV_EXCL_LINE (4 GiB)
}
else
{