Add 'tomlplusplus/' from commit '1c8b7466e4946fcc3bf20484c0e1d001202cca5a'

git-subtree-dir: tomlplusplus
git-subtree-mainline: b85e90fc3480da0e6a48da73201a0b22488cc650
git-subtree-split: 1c8b7466e4946fcc3bf20484c0e1d001202cca5a

1 files changed, 177 insertions, 0 deletions

diff --git a/tomlplusplus/tests/parsing_integers.cpp b/tomlplusplus/tests/parsing_integers.cpp
new file mode 100644
index 0000000000..c49858cf08
--- /dev/null
+++ b/tomlplusplus/tests/parsing_integers.cpp
@@ -0,0 +1,177 @@
+// This file is a part of toml++ and is subject to the the terms of the MIT license.
+// Copyright (c) Mark Gillard <mark.gillard@outlook.com.au>
+// See https://github.com/marzer/tomlplusplus/blob/master/LICENSE for the full license text.
+// SPDX-License-Identifier: MIT
+
+#include "tests.hpp"
+
+TEST_CASE("parsing - integers (decimal)")
+{
+	parsing_should_succeed(FILE_LINE_ARGS,
+						   BOM_PREFIX R"(
+								int1 = +99
+								int2 = 42
+								int3 = 0
+								int4 = -17
+								int5 = 1_000
+								int6 = 5_349_221
+								int7 = 1_2_3_4_5     # VALID but discouraged
+							)"sv,
+						   [](table&& tbl)
+						   {
+							   CHECK(tbl["int1"] == 99);
+							   CHECK(tbl["int2"] == 42);
+							   CHECK(tbl["int3"] == 0);
+							   CHECK(tbl["int4"] == -17);
+							   CHECK(tbl["int5"] == 1000);
+							   CHECK(tbl["int6"] == 5349221);
+							   CHECK(tbl["int7"] == 12345);
+						   });
+
+	// "Each underscore must be surrounded by at least one digit on each side."
+	parsing_should_fail(FILE_LINE_ARGS, "int5 = 1__000"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int5 = _1_000"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int5 = 1_000_"sv);
+
+	// "Leading zeroes are not allowed."
+	parsing_should_fail(FILE_LINE_ARGS, "int1 = +099"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int2 = 042"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int3 = 00"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int4 = -017"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int5 = 01_000"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int6 = 05_349_221"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int7 = 01_2_3_4_5"sv);
+
+	// "Integer values -0 and +0 are valid and identical to an unprefixed zero."
+	parsing_should_succeed(FILE_LINE_ARGS,
+						   "zeroes = [-0, +0]"sv,
+						   [](table&& tbl)
+						   {
+							   CHECK(tbl["zeroes"][0] == 0);
+							   CHECK(tbl["zeroes"][1] == 0);
+						   });
+
+	// "64 bit (signed long) range expected (−9,223,372,036,854,775,808 to 9,223,372,036,854,775,807)."
+	parse_expected_value(FILE_LINE_ARGS, "9223372036854775807"sv, INT64_MAX);
+	parse_expected_value(FILE_LINE_ARGS, "-9223372036854775808"sv, INT64_MIN);
+	parsing_should_fail(FILE_LINE_ARGS, "val =  9223372036854775808"sv); // INT64_MAX + 1
+	parsing_should_fail(FILE_LINE_ARGS, "val = -9223372036854775809"sv); // INT64_MIN - 1
+
+	// signs in weird places
+	parsing_should_fail(FILE_LINE_ARGS, "val = +-1"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = -+1"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = ++1"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = --1"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = 1-"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = 1+"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = -1+"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = +1-"sv);
+
+	// value tests
+	parse_expected_value(FILE_LINE_ARGS, "0"sv, 0);
+	parse_expected_value(FILE_LINE_ARGS, "1"sv, 1);
+	parse_expected_value(FILE_LINE_ARGS, "+1"sv, 1);
+	parse_expected_value(FILE_LINE_ARGS, "-1"sv, -1);
+	parse_expected_value(FILE_LINE_ARGS, "1234"sv, 1234);
+	parse_expected_value(FILE_LINE_ARGS, "+1234"sv, 1234);
+	parse_expected_value(FILE_LINE_ARGS, "-1234"sv, -1234);
+	parse_expected_value(FILE_LINE_ARGS, "1_2_3_4"sv, 1234);
+	parse_expected_value(FILE_LINE_ARGS, "+1_2_3_4"sv, 1234);
+	parse_expected_value(FILE_LINE_ARGS, "-1_2_3_4"sv, -1234);
+	parse_expected_value(FILE_LINE_ARGS, "123_456_789"sv, 123456789);
+}
+
+TEST_CASE("parsing - integers (hex, bin, oct)")
+{
+	parsing_should_succeed(FILE_LINE_ARGS,
+						   R"(
+								# hexadecimal with prefix `0x`
+								hex1 = 0xDEADBEEF
+								hex2 = 0xdeadbeef
+								hex3 = 0xdead_beef
+
+								# octal with prefix `0o`
+								oct1 = 0o01234567
+								oct2 = 0o755 # useful for Unix file permissions
+
+								# binary with prefix `0b`
+								bin1 = 0b11010110
+							)"sv,
+						   [](table&& tbl)
+						   {
+							   CHECK(tbl["hex1"] == 0xDEADBEEF);
+							   CHECK(tbl["hex2"] == 0xDEADBEEF);
+							   CHECK(tbl["hex3"] == 0xDEADBEEF);
+							   CHECK(tbl["oct1"] == 01234567);
+							   CHECK(tbl["oct2"] == 0755);
+							   CHECK(tbl["bin1"] == 0b11010110);
+						   });
+
+	// "leading + is not allowed"
+	parsing_should_fail(FILE_LINE_ARGS, "hex1 = +0xDEADBEEF"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "hex2 = +0xdeadbeef"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "hex3 = +0xdead_beef"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "oct1 = +0o01234567"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "oct2 = +0o7550"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "int6 = +05_349_221"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "bin1 = +0b11010110"sv);
+
+	// "leading zeros are allowed (after the prefix)"
+	parsing_should_succeed(FILE_LINE_ARGS,
+						   R"(
+								hex1 = 0x000DEADBEEF
+								hex2 = 0x00000deadbeef
+								hex3 = 0x0dead_beef
+								oct1 = 0o0001234567
+								oct2 = 0o000755
+								bin1 = 0b0000011010110
+							)"sv,
+						   [](table&& tbl)
+						   {
+							   CHECK(tbl["hex1"] == 0xDEADBEEF);
+							   CHECK(tbl["hex2"] == 0xDEADBEEF);
+							   CHECK(tbl["hex3"] == 0xDEADBEEF);
+							   CHECK(tbl["oct1"] == 01234567);
+							   CHECK(tbl["oct2"] == 0755);
+							   CHECK(tbl["bin1"] == 0b11010110);
+						   });
+
+	// "***Non-negative*** integer values may also be expressed in hexadecimal, octal, or binary"
+	parsing_should_fail(FILE_LINE_ARGS, "val = -0x1"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = -0o1"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = -0b1"sv);
+
+	// "64 bit (signed long) range expected (−9,223,372,036,854,775,808 to 9,223,372,036,854,775,807)."
+	// (ignoring INT64_MIN because toml doesn't allow these forms to represent negative values)
+	parse_expected_value(FILE_LINE_ARGS, "0x7FFFFFFFFFFFFFFF"sv, INT64_MAX);
+	parse_expected_value(FILE_LINE_ARGS, "0o777777777777777777777"sv, INT64_MAX);
+	parse_expected_value(FILE_LINE_ARGS,
+						 "0b111111111111111111111111111111111111111111111111111111111111111"sv,
+						 INT64_MAX);
+	parsing_should_fail(FILE_LINE_ARGS, "val =       0x8000000000000000"sv); // INT64_MAX + 1
+	parsing_should_fail(FILE_LINE_ARGS, "val = 0o1000000000000000000000"sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = 0b1000000000000000000000000000000000000000000000000000000000000000"sv);
+
+	// missing values after base prefix
+	parsing_should_fail(FILE_LINE_ARGS, "val = 0x "sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = 0o "sv);
+	parsing_should_fail(FILE_LINE_ARGS, "val = 0b "sv);
+
+	// value tests
+	parse_expected_value(FILE_LINE_ARGS, "0xDEADBEEF"sv, 0xDEADBEEF);
+	parse_expected_value(FILE_LINE_ARGS, "0xdeadbeef"sv, 0xDEADBEEF);
+	parse_expected_value(FILE_LINE_ARGS, "0xDEADbeef"sv, 0xDEADBEEF);
+	parse_expected_value(FILE_LINE_ARGS, "0xDEAD_BEEF"sv, 0xDEADBEEF);
+	parse_expected_value(FILE_LINE_ARGS, "0xdead_beef"sv, 0xDEADBEEF);
+	parse_expected_value(FILE_LINE_ARGS, "0xdead_BEEF"sv, 0xDEADBEEF);
+	parse_expected_value(FILE_LINE_ARGS, "0xFF"sv, 0xFF);
+	parse_expected_value(FILE_LINE_ARGS, "0x00FF"sv, 0xFF);
+	parse_expected_value(FILE_LINE_ARGS, "0x0000FF"sv, 0xFF);
+	parse_expected_value(FILE_LINE_ARGS, "0o777"sv, 0777);
+	parse_expected_value(FILE_LINE_ARGS, "0o7_7_7"sv, 0777);
+	parse_expected_value(FILE_LINE_ARGS, "0o007"sv, 0007);
+	parse_expected_value(FILE_LINE_ARGS, "0b10000"sv, 0b10000);
+	parse_expected_value(FILE_LINE_ARGS, "0b010000"sv, 0b10000);
+	parse_expected_value(FILE_LINE_ARGS, "0b01_00_00"sv, 0b10000);
+	parse_expected_value(FILE_LINE_ARGS, "0b111111"sv, 0b111111);
+}