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json
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added width feature / more test cases

pull/36/head
Niels 2015-02-10 19:50:26 +01:00
parent 4cd341d4db
commit 8c6bb04d10
3 changed files with 78 additions and 15 deletions
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18
src/json.hpp
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@ -1264,14 +1264,20 @@ class basic_json
/// serialize to stream
friend std::ostream& operator<<(std::ostream& o, const basic_json& j)
{
o << j.dump();
// read width member and use it as indentation parameter if nonzero
const int indentation = (o.width() == 0) ? -1 : o.width();
o << j.dump(indentation);
return o;
}
/// serialize to stream
friend std::ostream& operator>>(const basic_json& j, std::ostream& o)
{
o << j.dump();
// read width member and use it as indentation parameter if nonzero
const int indentation = (o.width() == 0) ? -1 : o.width();
o << j.dump(indentation);
return o;
}
@ -1315,24 +1321,28 @@ class basic_json
{
return "null";
}
case (value_t::object):
{
return "object";
}
case (value_t::array):
{
return "array";
}
case (value_t::string):
{
return "string";
}
case (value_t::boolean):
{
return "boolean";
}
case (value_t::number_integer):
case (value_t::number_float):
default:
{
return "number";
}

10
src/json.hpp.re2c
View File

@ -1264,14 +1264,20 @@ class basic_json
/// serialize to stream
friend std::ostream& operator<<(std::ostream& o, const basic_json& j)
{
o << j.dump();
// read width member and use it as indentation parameter if nonzero
const int indentation = (o.width() == 0) ? -1 : o.width();
o << j.dump(indentation);
return o;
}
/// serialize to stream
friend std::ostream& operator>>(const basic_json& j, std::ostream& o)
{
o << j.dump();
// read width member and use it as indentation parameter if nonzero
const int indentation = (o.width() == 0) ? -1 : o.width();
o << j.dump(indentation);
return o;
}

65
test/unit.cpp
View File

@ -7,6 +7,7 @@ using nlohmann::json;
#include <array>
#include <deque>
#include <forward_list>
#include <iomanip>
#include <list>
#include <map>
#include <set>
@ -1045,10 +1046,12 @@ TEST_CASE("object inspection")
{
json j {{"object", json::object()}, {"array", {1, 2, 3, 4}}, {"number", 42}, {"boolean", false}, {"null", nullptr}, {"string", "Hello world"} };
SECTION("no indent")
SECTION("no indent / indent=-1")
{
CHECK(j.dump() ==
"{\"array\":[1,2,3,4],\"boolean\":false,\"null\":null,\"number\":42,\"object\":{},\"string\":\"Hello world\"}");
CHECK(j.dump() == j.dump(-1));
}
SECTION("indent=0")
@ -2152,12 +2155,25 @@ TEST_CASE("element access")
SECTION("access within bounds")
{
CHECK(j["integer"] == json(1));
CHECK(j[json::object_t::key_type("integer")] == j["integer"]);
CHECK(j["boolean"] == json(true));
CHECK(j[json::object_t::key_type("boolean")] == j["boolean"]);
CHECK(j["null"] == json(nullptr));
CHECK(j[json::object_t::key_type("null")] == j["null"]);
CHECK(j["string"] == json("hello world"));
CHECK(j[json::object_t::key_type("string")] == j["string"]);
CHECK(j["floating"] == json(42.23));
CHECK(j[json::object_t::key_type("floating")] == j["floating"]);
CHECK(j["object"] == json(json::object()));
CHECK(j[json::object_t::key_type("object")] == j["object"]);
CHECK(j["array"] == json({1, 2, 3}));
CHECK(j[json::object_t::key_type("array")] == j["array"]);
}
SECTION("access on non-object type")
@ -2166,36 +2182,42 @@ TEST_CASE("element access")
{
json j_nonobject(json::value_t::null);
CHECK_THROWS_AS(j_nonobject["foo"], std::runtime_error);
CHECK_THROWS_AS(j_nonobject[json::object_t::key_type("foo")], std::runtime_error);
}
SECTION("boolean")
{
json j_nonobject(json::value_t::boolean);
CHECK_THROWS_AS(j_nonobject["foo"], std::runtime_error);
CHECK_THROWS_AS(j_nonobject[json::object_t::key_type("foo")], std::runtime_error);
}
SECTION("string")
{
json j_nonobject(json::value_t::string);
CHECK_THROWS_AS(j_nonobject["foo"], std::runtime_error);
CHECK_THROWS_AS(j_nonobject[json::object_t::key_type("foo")], std::runtime_error);
}
SECTION("array")
{
json j_nonobject(json::value_t::array);
CHECK_THROWS_AS(j_nonobject["foo"], std::runtime_error);
CHECK_THROWS_AS(j_nonobject[json::object_t::key_type("foo")], std::runtime_error);
}
SECTION("number (integer)")
{
json j_nonobject(json::value_t::number_integer);
CHECK_THROWS_AS(j_nonobject["foo"], std::runtime_error);
CHECK_THROWS_AS(j_nonobject[json::object_t::key_type("foo")], std::runtime_error);
}
SECTION("number (floating-point)")
{
json j_nonobject(json::value_t::number_float);
CHECK_THROWS_AS(j_nonobject["foo"], std::runtime_error);
CHECK_THROWS_AS(j_nonobject[json::object_t::key_type("foo")], std::runtime_error);
}
}
}
@ -3826,18 +3848,43 @@ TEST_CASE("serialization")
{
SECTION("operator<<")
{
std::stringstream ss;
json j = {"foo", 1, 2, 3, false, {{"one", 1}}};
ss << j;
CHECK(ss.str() == "[\"foo\",1,2,3,false,{\"one\":1}]");
SECTION("no given width")
{
std::stringstream ss;
json j = {"foo", 1, 2, 3, false, {{"one", 1}}};
ss << j;
CHECK(ss.str() == "[\"foo\",1,2,3,false,{\"one\":1}]");
}
SECTION("given width")
{
std::stringstream ss;
json j = {"foo", 1, 2, 3, false, {{"one", 1}}};
ss << std::setw(4) << j;
CHECK(ss.str() ==
"[\n \"foo\",\n 1,\n 2,\n 3,\n false,\n {\n \"one\": 1\n }\n]");
}
}
SECTION("operator>>")
{
std::stringstream ss;
json j = {"foo", 1, 2, 3, false, {{"one", 1}}};
j >> ss;
CHECK(ss.str() == "[\"foo\",1,2,3,false,{\"one\":1}]");
SECTION("no given width")
{
std::stringstream ss;
json j = {"foo", 1, 2, 3, false, {{"one", 1}}};
j >> ss;
CHECK(ss.str() == "[\"foo\",1,2,3,false,{\"one\":1}]");
}
SECTION("given width")
{
std::stringstream ss;
json j = {"foo", 1, 2, 3, false, {{"one", 1}}};
ss.width(4);
j >> ss;
CHECK(ss.str() ==
"[\n \"foo\",\n 1,\n 2,\n 3,\n false,\n {\n \"one\": 1\n }\n]");
}
}
}