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toml11/tests/test_comments.cpp

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#define BOOST_TEST_MODULE "test_comments"
#ifdef UNITTEST_FRAMEWORK_LIBRARY_EXIST
#include <boost/test/unit_test.hpp>
#else
#define BOOST_TEST_NO_LIB
#include <boost/test/included/unit_test.hpp>
#endif
#include <toml.hpp>
BOOST_AUTO_TEST_CASE(test_comment_before)
{
{
const std::string file = R"(
# comment for a.
a = 42
# comment for b.
b = "baz"
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto& a = toml::find(v, "a");
const auto& b = toml::find(v, "b");
BOOST_TEST(a.comments().size() == 1u);
BOOST_TEST(a.comments().front() == " comment for a.");
BOOST_TEST(b.comments().size() == 1u);
BOOST_TEST(b.comments().front() == " comment for b.");
}
{
const std::string file = R"(
# comment for a.
# another comment for a.
a = 42
# comment for b.
# also comment for b.
b = "baz"
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto& a = toml::find(v, "a");
const auto& b = toml::find(v, "b");
BOOST_TEST(a.comments().size() == 2u);
BOOST_TEST(a.comments().front() == " comment for a.");
BOOST_TEST(a.comments().back() == " another comment for a.");
BOOST_TEST(b.comments().size() == 2u);
BOOST_TEST(b.comments().front() == " comment for b.");
BOOST_TEST(b.comments().back() == " also comment for b.");
}
}
BOOST_AUTO_TEST_CASE(test_comment_inline)
{
{
const std::string file = R"(
a = 42 # comment for a.
b = "baz" # comment for b.
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto& a = toml::find(v, "a");
const auto& b = toml::find(v, "b");
BOOST_TEST(a.comments().size() == 1u);
BOOST_TEST(a.comments().front() == " comment for a.");
BOOST_TEST(b.comments().size() == 1u);
BOOST_TEST(b.comments().front() == " comment for b.");
}
{
const std::string file = R"(
a = [
42,
] # comment for a.
b = [
"bar", # this is not a comment for b, but "bar"
] # this is a comment for b.
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto& a = toml::find(v, "a");
const auto& b = toml::find(v, "b");
const auto& b0 = b.as_array().at(0);
BOOST_TEST(a.comments().size() == 1u);
BOOST_TEST(a.comments().front() == " comment for a.");
BOOST_TEST(b.comments().size() == 1u);
BOOST_TEST(b.comments().front() == " this is a comment for b.");
BOOST_TEST(b0.comments().size() == 1u);
BOOST_TEST(b0.comments().front() == " this is not a comment for b, but \"bar\"");
}
}
BOOST_AUTO_TEST_CASE(test_comment_both)
{
{
const std::string file = R"(
# comment for a.
a = 42 # inline comment for a.
# comment for b.
b = "baz" # inline comment for b.
# comment for c.
c = [ # this comment will be ignored
# comment for the first element.
10 # this also.
] # another comment for c.
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto& a = toml::find(v, "a");
const auto& b = toml::find(v, "b");
const auto& c = toml::find(v, "c");
const auto& c0 = c.as_array().at(0);
BOOST_TEST(a.comments().size() == 2u);
BOOST_TEST(a.comments().front() == " comment for a.");
BOOST_TEST(a.comments().back() == " inline comment for a.");
BOOST_TEST(b.comments().size() == 2u);
BOOST_TEST(b.comments().front() == " comment for b.");
BOOST_TEST(b.comments().back() == " inline comment for b.");
BOOST_TEST(c.comments().size() == 2u);
BOOST_TEST(c.comments().front() == " comment for c.");
BOOST_TEST(c.comments().back() == " another comment for c.");
BOOST_TEST(c0.comments().size() == 2u);
BOOST_TEST(c0.comments().front() == " comment for the first element.");
BOOST_TEST(c0.comments().back() == " this also.");
}
}
BOOST_AUTO_TEST_CASE(test_comments_on_implicit_values)
{
{
const std::string file = R"(
# comment for the first element of array-of-tables.
[[array-of-tables]]
foo = "bar"
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto aot = toml::find(v, "array-of-tables");
const auto elm = aot.at(0);
BOOST_TEST(aot.comments().empty());
BOOST_TEST(elm.comments().size() == 1);
BOOST_TEST(elm.comments().front() == " comment for the first element of array-of-tables.");
}
{
const std::string file = R"(
# comment for the array itself
array-of-tables = [
# comment for the first element of array-of-tables.
{foo = "bar"}
]
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::preserve_comments>(iss);
const auto aot = toml::find(v, "array-of-tables");
const auto elm = aot.at(0);
BOOST_TEST(aot.comments().size() == 1);
BOOST_TEST(aot.comments().front() == " comment for the array itself");
BOOST_TEST(elm.comments().size() == 1);
BOOST_TEST(elm.comments().front() == " comment for the first element of array-of-tables.");
}
}
BOOST_AUTO_TEST_CASE(test_discard_comment)
{
const std::string file = R"(
# comment for a.
a = 42 # inline comment for a.
# comment for b.
b = "baz" # inline comment for b.
# comment for c.
c = [ # this comment will be ignored
# comment for the first element.
10 # this also.
] # another comment for c.
)";
std::istringstream iss(file);
const auto v = toml::parse<toml::discard_comments>(iss);
const auto& a = toml::find(v, "a");
const auto& b = toml::find(v, "b");
const auto& c = toml::find(v, "c");
const auto& c0 = c.as_array().at(0);
BOOST_TEST(a.comments().empty());
BOOST_TEST(b.comments().empty());
BOOST_TEST(c.comments().empty());
BOOST_TEST(c0.comments().empty());
}
BOOST_AUTO_TEST_CASE(test_construct_value_with_comments)
{
using value_type = toml::basic_value<toml::preserve_comments>;
{
const value_type v(true, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_boolean());
BOOST_TEST(v.as_boolean() == true);
}
{
const value_type v(42, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_integer());
BOOST_TEST(v.as_integer() == 42);
}
{
const value_type v(3.14, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_floating());
BOOST_TEST(v.as_floating() == 3.14);
}
{
const value_type v(toml::string("str"), {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
{
const value_type v(std::string("str"), {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
{
const value_type v(std::string("str"), toml::string_t::literal,
{"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
{
const value_type v("str", {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
{
const value_type v("str", toml::string_t::literal,
{"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
#if __cplusplus >= 201703L
{
using namespace std::literals::string_view_literals;
const value_type v("str"sv, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
{
using namespace std::literals::string_view_literals;
const value_type v("str"sv, toml::string_t::literal,
{"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_string());
BOOST_TEST(v.as_string() == "str");
}
#endif
const toml::local_date ld{2019, toml::month_t::Apr, 1};
const toml::local_time lt{12, 30, 45};
const toml::local_datetime ldt{ld, lt};
const toml::offset_datetime odt{ld, lt, toml::time_offset{9, 0}};
{
const value_type v(ld, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_local_date());
BOOST_TEST(v.as_local_date() == ld);
}
{
const value_type v(lt, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_local_time());
BOOST_TEST(v.as_local_time() == lt);
}
{
const toml::local_time three_hours{3,0,0};
const value_type v(std::chrono::hours(3), {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_local_time());
BOOST_TEST(v.as_local_time() == three_hours);
}
{
const value_type v(ldt, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_local_datetime());
BOOST_TEST(v.as_local_datetime() == ldt);
}
{
const value_type v(odt, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_offset_datetime());
BOOST_TEST(v.as_offset_datetime() == odt);
}
{
const auto systp = static_cast<std::chrono::system_clock::time_point>(odt);
const value_type v(systp, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_offset_datetime());
// While the conversion, the information about time offset may change.
const auto systp2 = static_cast<std::chrono::system_clock::time_point>(
v.as_offset_datetime());
const bool result = systp == systp2; // because there is no operator<<
BOOST_TEST(result);
}
{
const typename value_type::array_type a{1,2,3,4,5};
const value_type v(a, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_array());
BOOST_TEST(v.as_array().at(0).is_integer());
BOOST_TEST(v.as_array().at(1).is_integer());
BOOST_TEST(v.as_array().at(2).is_integer());
BOOST_TEST(v.as_array().at(3).is_integer());
BOOST_TEST(v.as_array().at(4).is_integer());
BOOST_TEST(v.as_array().at(0).as_integer() == 1);
BOOST_TEST(v.as_array().at(1).as_integer() == 2);
BOOST_TEST(v.as_array().at(2).as_integer() == 3);
BOOST_TEST(v.as_array().at(3).as_integer() == 4);
BOOST_TEST(v.as_array().at(4).as_integer() == 5);
}
{
const std::initializer_list<int> a = {1,2,3,4,5};
const value_type v(a, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_array());
BOOST_TEST(v.as_array().at(0).is_integer());
BOOST_TEST(v.as_array().at(1).is_integer());
BOOST_TEST(v.as_array().at(2).is_integer());
BOOST_TEST(v.as_array().at(3).is_integer());
BOOST_TEST(v.as_array().at(4).is_integer());
BOOST_TEST(v.as_array().at(0).as_integer() == 1);
BOOST_TEST(v.as_array().at(1).as_integer() == 2);
BOOST_TEST(v.as_array().at(2).as_integer() == 3);
BOOST_TEST(v.as_array().at(3).as_integer() == 4);
BOOST_TEST(v.as_array().at(4).as_integer() == 5);
}
{
const std::vector<int> a = {1,2,3,4,5};
const value_type v(a, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_array());
BOOST_TEST(v.as_array().at(0).is_integer());
BOOST_TEST(v.as_array().at(1).is_integer());
BOOST_TEST(v.as_array().at(2).is_integer());
BOOST_TEST(v.as_array().at(3).is_integer());
BOOST_TEST(v.as_array().at(4).is_integer());
BOOST_TEST(v.as_array().at(0).as_integer() == 1);
BOOST_TEST(v.as_array().at(1).as_integer() == 2);
BOOST_TEST(v.as_array().at(2).as_integer() == 3);
BOOST_TEST(v.as_array().at(3).as_integer() == 4);
BOOST_TEST(v.as_array().at(4).as_integer() == 5);
}
{
const typename value_type::table_type t{
{"key1", 42}, {"key2", "foobar"}
};
const value_type v(t, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_table());
BOOST_TEST(v.as_table().at("key1").is_integer());
BOOST_TEST(v.as_table().at("key1").as_integer() == 42);
BOOST_TEST(v.as_table().at("key2").is_string());
BOOST_TEST(v.as_table().at("key2").as_string() == "foobar");
}
{
const std::initializer_list<std::pair<std::string, value_type>> t{
{"key1", 42}, {"key2", "foobar"}
};
const value_type v(t, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_table());
BOOST_TEST(v.as_table().at("key1").is_integer());
BOOST_TEST(v.as_table().at("key1").as_integer() == 42);
BOOST_TEST(v.as_table().at("key2").is_string());
BOOST_TEST(v.as_table().at("key2").as_string() == "foobar");
}
{
const std::map<std::string, value_type> t{
{"key1", 42}, {"key2", "foobar"}
};
const value_type v(t, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_table());
BOOST_TEST(v.as_table().at("key1").is_integer());
BOOST_TEST(v.as_table().at("key1").as_integer() == 42);
BOOST_TEST(v.as_table().at("key2").is_string());
BOOST_TEST(v.as_table().at("key2").as_string() == "foobar");
}
}
BOOST_AUTO_TEST_CASE(test_overwrite_comments)
{
using value_type = toml::basic_value<toml::preserve_comments>;
{
const value_type v(42, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_integer());
BOOST_TEST(v.as_integer() == 42);
const value_type u(v, {"comment3", "comment4"});
BOOST_TEST(u.comments().size() == 2u);
BOOST_TEST(u.comments().at(0) == "comment3");
BOOST_TEST(u.comments().at(1) == "comment4");
BOOST_TEST(u.is_integer());
BOOST_TEST(u.as_integer() == 42);
}
{
const value_type v(42, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_integer());
BOOST_TEST(v.as_integer() == 42);
const value_type u(v);
BOOST_TEST(u.comments().size() == 2u);
BOOST_TEST(u.comments().at(0) == "comment1");
BOOST_TEST(u.comments().at(1) == "comment2");
BOOST_TEST(u.is_integer());
BOOST_TEST(u.as_integer() == 42);
}
{
const value_type v(42, {"comment1", "comment2"});
BOOST_TEST(v.comments().size() == 2u);
BOOST_TEST(v.comments().at(0) == "comment1");
BOOST_TEST(v.comments().at(1) == "comment2");
BOOST_TEST(v.is_integer());
BOOST_TEST(v.as_integer() == 42);
const value_type u(v, {});
BOOST_TEST(u.comments().size() == 0u);
BOOST_TEST(u.is_integer());
BOOST_TEST(u.as_integer() == 42);
}
}
BOOST_AUTO_TEST_CASE(test_output_comments)
{
using value_type = toml::basic_value<toml::preserve_comments>;
{
const value_type v(42, {"comment1", "comment2"});
std::ostringstream oss;
oss << v.comments();
std::ostringstream ref;
ref << "#comment1\n";
ref << "#comment2\n";
BOOST_TEST(oss.str() == ref.str());
}
{
const value_type v(42, {"comment1", "comment2"});
std::ostringstream oss;
// If v is not a table, toml11 assumes that user is writing something
// like the following.
oss << "answer = " << v;
BOOST_TEST(oss.str() == "answer = 42 #comment1comment2");
}
{
const value_type v(42, {"comment1", "comment2"});
std::ostringstream oss;
// If v is not a table, toml11 assumes that user is writing something
// like the following.
oss << toml::nocomment << "answer = " << v;
BOOST_TEST(oss.str() == "answer = 42");
}
{
const value_type v(42, {"comment1", "comment2"});
std::ostringstream oss;
// If v is not a table, toml11 assumes that user is writing something
// like the following.
oss << toml::nocomment << toml::showcomment << "answer = " << v;
BOOST_TEST(oss.str() == "answer = 42 #comment1comment2");
}
}
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