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tomlplusplus/tests/parsing_tables.cpp
Mark Gillard cb000809b0 support for upcoming TOML v1.0.0 release 
see https://github.com/toml-lang/toml/issues/698 for info about TOML v1.0.0

also:
- fixed some parser error-paths not returning early enough when exceptions were disabled
- added more specific error messages for parsing errors relating to prohibited codepoints
- added compilation speed improvements (particularly for platforms lacking floating-point `std::to_chars`)
- added many minor documentation improvements
- added additional tests
2020-04-03 00:39:21 +03:00

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#include "tests.h"
TEST_CASE("parsing - tables")
{
parsing_should_succeed(S(R"(
[table]
[table-1]
key1 = "some string"
key2 = 123
[table-2]
key1 = "another string"
key2 = 456
[dog."tater.man"]
type.name = "pug"
[a.b.c] # this is best practice
[ d.e.f ] # same as [d.e.f]
[ g . h . i ] # same as [g.h.i]
[ j . "ʞ" . 'l' ] # same as [j."ʞ".'l']
# [x] you
# [x.y] don't
# [x.y.z] need these
[x.y.z.w] # for this to work
[x] # defining a super-table afterwards is ok
[fruit]
apple.color = "red"
apple.taste.sweet = true
[fruit.apple.texture] # you can add sub-tables
smooth = true
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("table")].as<table>());
CHECK(tbl[S("table")].as<table>()->size() == 0_sz);
REQUIRE(tbl[S("table-1")].as<table>());
CHECK(tbl[S("table-1")].as<table>()->size() == 2_sz);
CHECK(tbl[S("table-1")][S("key1")] == S("some string"sv));
CHECK(tbl[S("table-1")][S("key2")] == 123);
REQUIRE(tbl[S("table-2")].as<table>());
CHECK(tbl[S("table-2")].as<table>()->size() == 2_sz);
CHECK(tbl[S("table-2")][S("key1")] == S("another string"sv));
CHECK(tbl[S("table-2")][S("key2")] == 456);
REQUIRE(tbl[S("dog")].as<table>());
CHECK(tbl[S("dog")].as<table>()->size() == 1_sz);
REQUIRE(tbl[S("dog")][S("tater.man")].as<table>());
CHECK(tbl[S("dog")][S("tater.man")].as<table>()->size() == 1_sz);
CHECK(tbl[S("dog")][S("tater.man")][S("type")][S("name")] == S("pug"sv));
CHECK(tbl[S("a")].as<table>());
CHECK(tbl[S("a")][S("b")].as<table>());
CHECK(tbl[S("a")][S("b")][S("c")].as<table>());
CHECK(tbl[S("d")].as<table>());
CHECK(tbl[S("d")][S("e")].as<table>());
CHECK(tbl[S("d")][S("e")][S("f")].as<table>());
CHECK(tbl[S("g")].as<table>());
CHECK(tbl[S("g")][S("h")].as<table>());
CHECK(tbl[S("g")][S("h")][S("i")].as<table>());
CHECK(tbl[S("j")].as<table>());
CHECK(tbl[S("j")][S("ʞ")].as<table>());
CHECK(tbl[S("j")][S("ʞ")][S("l")].as<table>());
REQUIRE(tbl[S("fruit")].as<table>());
CHECK(tbl[S("fruit")][S("apple")][S("color")] == S("red"sv));
CHECK(tbl[S("fruit")][S("apple")][S("taste")][S("sweet")] == true);
CHECK(tbl[S("fruit")][S("apple")][S("texture")][S("smooth")] == true);
}
);
parsing_should_fail(S(R"(
# DO NOT DO THIS
[fruit]
apple = "red"
[fruit]
orange = "orange"
)"sv));
parsing_should_fail(S(R"(
# DO NOT DO THIS EITHER
[fruit]
apple = "red"
[fruit.apple]
texture = "smooth"
)"sv));
parsing_should_fail(S(R"(
[fruit]
apple.color = "red"
apple.taste.sweet = true
[fruit.apple]
)"sv));
parsing_should_fail(S(R"(
[fruit]
apple.color = "red"
apple.taste.sweet = true
[fruit.apple.taste]
)"sv));
parsing_should_succeed(S(R"(
# VALID BUT DISCOURAGED
[fruit.apple]
[animal]
[fruit.orange]
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("animal")].as<table>());
CHECK(tbl[S("animal")].as<table>()->size() == 0_sz);
REQUIRE(tbl[S("fruit")].as<table>());
CHECK(tbl[S("fruit")].as<table>()->size() == 2_sz);
REQUIRE(tbl[S("fruit")][S("apple")].as<table>());
REQUIRE(tbl[S("fruit")][S("orange")].as<table>());
}
);
parsing_should_succeed(S(R"(
# RECOMMENDED
[fruit.apple]
[fruit.orange]
[animal]
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("animal")].as<table>());
CHECK(tbl[S("animal")].as<table>()->size() == 0_sz);
REQUIRE(tbl[S("fruit")].as<table>());
CHECK(tbl[S("fruit")].as<table>()->size() == 2_sz);
REQUIRE(tbl[S("fruit")][S("apple")].as<table>());
REQUIRE(tbl[S("fruit")][S("orange")].as<table>());
}
);
}
TEST_CASE("parsing - inline tables")
{
parsing_should_succeed(S(R"(
name = { first = "Tom", last = "Preston-Werner" }
point = { x = 1, y = 2 }
animal = { type.name = "pug" }
[product]
type = { name = "Nail" }
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("name")].as<table>());
CHECK(tbl[S("name")].as<table>()->size() == 2_sz);
CHECK(tbl[S("name")][S("first")] == S("Tom"sv));
CHECK(tbl[S("name")][S("last")] == S("Preston-Werner"sv));
REQUIRE(tbl[S("point")].as<table>());
CHECK(tbl[S("point")].as<table>()->size() == 2_sz);
CHECK(tbl[S("point")][S("x")] == 1);
CHECK(tbl[S("point")][S("y")] == 2);
REQUIRE(tbl[S("animal")].as<table>());
CHECK(tbl[S("animal")].as<table>()->size() == 1_sz);
REQUIRE(tbl[S("animal")][S("type")].as<table>());
CHECK(tbl[S("animal")][S("type")].as<table>()->size() == 1_sz);
CHECK(tbl[S("animal")][S("type")][S("name")] == S("pug"sv));
REQUIRE(tbl[S("product")].as<table>());
CHECK(tbl[S("product")].as<table>()->size() == 1_sz);
REQUIRE(tbl[S("product")][S("type")].as<table>());
CHECK(tbl[S("product")][S("type")].as<table>()->size() == 1_sz);
CHECK(tbl[S("product")][S("type")][S("name")] == S("Nail"sv));
}
);
parsing_should_fail(S(R"(
[product]
type = { name = "Nail" }
type.edible = false # INVALID
)"sv));
parsing_should_fail(S(R"(
[product]
type.name = "Nail"
type = { edible = false } # INVALID
)"sv));
// "newlines are allowed between the curly braces [if] they are valid within a value."
parsing_should_succeed(S(R"(
test = { val1 = "foo", val2 = [
1, 2,
3
], val3 = "bar" }
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("test")].as<table>());
CHECK(tbl[S("test")].as<table>()->size() == 3_sz);
CHECK(tbl[S("test")][S("val1")] == S("foo"sv));
REQUIRE(tbl[S("test")][S("val2")].as<array>());
CHECK(tbl[S("test")][S("val2")].as<array>()->size() == 3_sz);
CHECK(tbl[S("test")][S("val2")][0] == 1);
CHECK(tbl[S("test")][S("val2")][1] == 2);
CHECK(tbl[S("test")][S("val2")][2] == 3);
CHECK(tbl[S("test")][S("val3")] == S("bar"sv));
}
);
// toml/issues/516 (newlines/trailing commas in inline tables)
#if TOML_LANG_UNRELEASED
{
parsing_should_succeed(S(R"(
name = {
first = "Tom",
last = "Preston-Werner",
}
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("name")].as<table>());
CHECK(tbl[S("name")].as<table>()->size() == 2_sz);
CHECK(tbl[S("name")][S("first")] == S("Tom"sv));
CHECK(tbl[S("name")][S("last")] == S("Preston-Werner"sv));
}
);
}
#else
{
// "A terminating comma (also called trailing comma) is not permitted after the last key/value pair in an inline table."
parsing_should_fail(S(R"(name = { first = "Tom", last = "Preston-Werner", })"sv));
// "No newlines are allowed between the curly braces unless they are valid within a value."
parsing_should_fail(S(R"(
name = {
first = "Tom",
last = "Preston-Werner"
}
)"sv));
}
#endif
}
TEST_CASE("parsing - arrays-of-tables")
{
parsing_should_succeed(S(R"(
points = [ { x = 1, y = 2, z = 3 },
{ x = 7, y = 8, z = 9 },
{ x = 2, y = 4, z = 8 } ]
[[products]]
name = "Hammer"
sku = 738594937
[[products]]
[[products]]
name = "Nail"
sku = 284758393
color = "gray"
[[fruit]]
name = "apple"
[fruit.physical] # subtable
color = "red"
shape = "round"
[[fruit.variety]] # nested array of tables
name = "red delicious"
[[fruit.variety]]
name = "granny smith"
[[fruit]]
name = "banana"
[[fruit.variety]]
name = "plantain"
)"sv),
[](table&& tbl) noexcept
{
REQUIRE(tbl[S("points")].as<array>());
CHECK(tbl[S("points")].as<array>()->size() == 3_sz);
CHECK(tbl[S("points")].as<array>()->is_homogeneous());
CHECK(tbl[S("points")].as<array>()->is_array_of_tables());
CHECK(tbl[S("points")][0][S("x")] == 1);
CHECK(tbl[S("points")][0][S("y")] == 2);
CHECK(tbl[S("points")][0][S("z")] == 3);
CHECK(tbl[S("points")][1][S("x")] == 7);
CHECK(tbl[S("points")][1][S("y")] == 8);
CHECK(tbl[S("points")][1][S("z")] == 9);
CHECK(tbl[S("points")][2][S("x")] == 2);
CHECK(tbl[S("points")][2][S("y")] == 4);
CHECK(tbl[S("points")][2][S("z")] == 8);
REQUIRE(tbl[S("products")].as<array>());
CHECK(tbl[S("products")].as<array>()->size() == 3_sz);
CHECK(tbl[S("products")].as<array>()->is_homogeneous());
CHECK(tbl[S("products")].as<array>()->is_array_of_tables());
REQUIRE(tbl[S("products")][0].as<table>());
CHECK(tbl[S("products")][0].as<table>()->size() == 2_sz);
CHECK(tbl[S("products")][0][S("name")] == S("Hammer"sv));
CHECK(tbl[S("products")][0][S("sku")] == 738594937);
REQUIRE(tbl[S("products")][1].as<table>());
CHECK(tbl[S("products")][1].as<table>()->size() == 0_sz);
REQUIRE(tbl[S("products")][2].as<table>());
CHECK(tbl[S("products")][2].as<table>()->size() == 3_sz);
CHECK(tbl[S("products")][2][S("name")] == S("Nail"sv));
CHECK(tbl[S("products")][2][S("sku")] == 284758393);
CHECK(tbl[S("products")][2][S("color")] == S("gray"sv));
REQUIRE(tbl[S("fruit")].as<array>());
CHECK(tbl[S("fruit")].as<array>()->size() == 2_sz);
CHECK(tbl[S("fruit")].as<array>()->is_homogeneous());
CHECK(tbl[S("fruit")].as<array>()->is_array_of_tables());
REQUIRE(tbl[S("fruit")][0].as<table>());
CHECK(tbl[S("fruit")][0].as<table>()->size() == 3_sz);
CHECK(tbl[S("fruit")][0][S("name")] == S("apple"sv));
REQUIRE(tbl[S("fruit")][0][S("physical")].as<table>());
CHECK(tbl[S("fruit")][0][S("physical")].as<table>()->size() == 2_sz);
CHECK(tbl[S("fruit")][0][S("physical")][S("color")] == S("red"sv));
CHECK(tbl[S("fruit")][0][S("physical")][S("shape")] == S("round"sv));
REQUIRE(tbl[S("fruit")][0][S("variety")].as<array>());
CHECK(tbl[S("fruit")][0][S("variety")].as<array>()->size() == 2_sz);
CHECK(tbl[S("fruit")][0][S("variety")].as<array>()->is_homogeneous());
CHECK(tbl[S("fruit")][0][S("variety")].as<array>()->is_array_of_tables());
CHECK(tbl[S("fruit")][0][S("variety")][0][S("name")] == S("red delicious"sv));
CHECK(tbl[S("fruit")][0][S("variety")][1][S("name")] == S("granny smith"sv));
REQUIRE(tbl[S("fruit")][1].as<table>());
CHECK(tbl[S("fruit")][1].as<table>()->size() == 2_sz);
CHECK(tbl[S("fruit")][1][S("name")] == S("banana"sv));
REQUIRE(tbl[S("fruit")][1][S("variety")].as<array>());
CHECK(tbl[S("fruit")][1][S("variety")].as<array>()->size() == 1_sz);
CHECK(tbl[S("fruit")][1][S("variety")].as<array>()->is_homogeneous());
CHECK(tbl[S("fruit")][1][S("variety")].as<array>()->is_array_of_tables());
CHECK(tbl[S("fruit")][1][S("variety")][0][S("name")] == S("plantain"sv));
}
);
parsing_should_fail(S(R"(
# INVALID TOML DOC
[fruit.physical] # subtable, but to which parent element should it belong?
color = "red"
shape = "round"
[[fruit]] # parser must throw an error upon discovering that "fruit" is
# an array rather than a table
name = "apple"
)"sv));
parsing_should_fail(S(R"(
# INVALID TOML DOC
fruit = []
[[fruit]] # Not allowed
)"sv));
parsing_should_fail(S(R"(
# INVALID TOML DOC
[[fruit]]
name = "apple"
[[fruit.variety]]
name = "red delicious"
# INVALID: This table conflicts with the previous array of tables
[fruit.variety]
name = "granny smith"
)"sv));
parsing_should_fail(S(R"(
# INVALID TOML DOC
[[fruit]]
name = "apple"
[fruit.physical]
color = "red"
shape = "round"
# INVALID: This array of tables conflicts with the previous table
[[fruit.physical]]
color = "green"
)"sv));
}
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