From 93cdf05928a38448a7ba0fa3e38d9f168d3ca1e1 Mon Sep 17 00:00:00 2001
From: Niels Lohmann <mail@nlohmann.me>
Date: Wed, 15 Jul 2020 14:23:22 +0200
Subject: [PATCH] :white_check_mark: add tests
---
test/src/unit-cbor.cpp | 173 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 173 insertions(+)
diff --git a/test/src/unit-cbor.cpp b/test/src/unit-cbor.cpp
index 34b57043..6af06bf6 100644
--- a/test/src/unit-cbor.cpp
+++ b/test/src/unit-cbor.cpp
@@ -2548,3 +2548,176 @@ TEST_CASE("examples from RFC 7049 Appendix A")
CHECK(json::parse("{\"Fun\": true, \"Amt\": -2}") == json::from_cbor(std::vector<uint8_t>({0xbf, 0x63, 0x46, 0x75, 0x6e, 0xf5, 0x63, 0x41, 0x6d, 0x74, 0x21, 0xff})));
}
}
+
+TEST_CASE("Tagged values")
+{
+ json j = "s";
+ auto v = json::to_cbor(j);
+
+ SECTION("0xC6..0xD4")
+ {
+ for (std::uint8_t b :
+ {
+ 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4
+ })
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), b);
+
+ // check that parsing fails in error mode
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+
+ // check that parsing succeeds and gets original value in ignore mode
+ auto j_tagged = json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore);
+ CHECK(j_tagged == j);
+ }
+ }
+
+ SECTION("0xD8 - 1 byte follows")
+ {
+ SECTION("success")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x42); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xD8); // tag
+
+ // check that parsing fails in error mode
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+
+ // check that parsing succeeds and gets original value in ignore mode
+ auto j_tagged = json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore);
+ CHECK(j_tagged == j);
+ }
+
+ SECTION("missing byte after tag")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0xD8); // tag
+
+ // check that parsing fails in all modes
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore), json::parse_error);
+ }
+ }
+
+ SECTION("0xD9 - 2 byte follow")
+ {
+ SECTION("success")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x42); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xD9); // tag
+
+ // check that parsing fails in error mode
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+
+ // check that parsing succeeds and gets original value in ignore mode
+ auto j_tagged = json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore);
+ CHECK(j_tagged == j);
+ }
+
+ SECTION("missing byte after tag")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xD9); // tag
+
+ // check that parsing fails in all modes
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore), json::parse_error);
+ }
+ }
+
+ SECTION("0xDA - 4 bytes follow")
+ {
+ SECTION("success")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x42); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x22); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x11); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xDA); // tag
+
+ // check that parsing fails in error mode
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+
+ // check that parsing succeeds and gets original value in ignore mode
+ auto j_tagged = json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore);
+ CHECK(j_tagged == j);
+ }
+
+ SECTION("missing bytes after tag")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x22); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x11); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xDA); // tag
+
+ // check that parsing fails in all modes
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore), json::parse_error);
+ }
+ }
+
+ SECTION("0xDB - 8 bytes follow")
+ {
+ SECTION("success")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x42); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x22); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x11); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x42); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x22); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x11); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xDB); // tag
+
+ // check that parsing fails in error mode
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+
+ // check that parsing succeeds and gets original value in ignore mode
+ auto j_tagged = json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore);
+ CHECK(j_tagged == j);
+ }
+
+ SECTION("missing byte after tag")
+ {
+ // add tag to value
+ auto v_tagged = v;
+ v_tagged.insert(v_tagged.begin(), 0x42); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x22); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x11); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x23); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x22); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0x11); // 1 byte
+ v_tagged.insert(v_tagged.begin(), 0xDB); // tag
+
+ // check that parsing fails in all modes
+ CHECK_THROWS_AS(json::from_cbor(v_tagged), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::error), json::parse_error);
+ CHECK_THROWS_AS(json::from_cbor(v_tagged, true, true, json::cbor_tag_handler_t::ignore), json::parse_error);
+ }
+ }
+}