comparison ext/json11/test.cpp @ 242:d607ae858682

Update json11 code

+/*
+ * Define JSON11_TEST_CUSTOM_CONFIG to 1 if you want to build this tester into
+ * your own unit-test framework rather than a stand-alone program.  By setting
+ * The values of the variables included below, you can insert your own custom
+ * code into this file as it builds, in order to make it into a test case for
+ * your favorite framework.
+ */
+#if !JSON11_TEST_CUSTOM_CONFIG
+#define JSON11_TEST_CPP_PREFIX_CODE
+#define JSON11_TEST_CPP_SUFFIX_CODE
+#define JSON11_TEST_STANDALONE_MAIN 1
+#define JSON11_TEST_CASE(name) static void name()
+#define JSON11_TEST_ASSERT(b) assert(b)
+#ifdef NDEBUG
+#undef NDEBUG//at now assert will work even in Release build
+#endif
+#endif // JSON11_TEST_CUSTOM_CONFIG
+
+/*
+ * Enable or disable code which demonstrates the behavior change in Xcode 7 / Clang 3.7,
+ * introduced by DR1467 and described here: https://github.com/dropbox/json11/issues/86
+ * Defaults to off since it doesn't appear the standards committee is likely to act
+ * on this, so it needs to be considered normal behavior.
+ */
+#ifndef JSON11_ENABLE_DR1467_CANARY
+#define JSON11_ENABLE_DR1467_CANARY 0
+#endif
+
+/*
+ * Beginning of standard source file, which makes use of the customizations above.
+ */
+#include <cassert>
 #include <string>
 #include <cstdio>
 #include <cstring>
 #include <iostream>
 #include <sstream>
 #include "json11.hpp"
-#include <cassert>
 #include <list>
 #include <set>
 #include <unordered_map>
+#include <algorithm>
+#include <type_traits>
+
+// Insert user-defined prefix code (includes, function declarations, etc)
+// to set up a custom test suite
+JSON11_TEST_CPP_PREFIX_CODE
 
 using namespace json11;
 using std::string;
 
 // Check that Json has the properties we want.
-#include <type_traits>
 #define CHECK_TRAIT(x) static_assert(std::x::value, #x)
 CHECK_TRAIT(is_nothrow_constructible<Json>);
 CHECK_TRAIT(is_nothrow_default_constructible<Json>);
 CHECK_TRAIT(is_copy_constructible<Json>);
 CHECK_TRAIT(is_nothrow_move_constructible<Json>);
 CHECK_TRAIT(is_copy_assignable<Json>);
 CHECK_TRAIT(is_nothrow_move_assignable<Json>);
 CHECK_TRAIT(is_nothrow_destructible<Json>);
 
-void parse_from_stdin() {
-    string buf;
-    string line;
-    while (std::getline(std::cin, line)) {
-        buf += line + "\n";
-    }
-
-    string err;
-    auto json = Json::parse(buf, err);
-    if (!err.empty()) {
-        printf("Failed: %s\n", err.c_str());
-    } else {
-        printf("Result: %s\n", json.dump().c_str());
-    }
-}
-
-int main(int argc, char **argv) {
-    if (argc == 2 && argv[1] == string("--stdin")) {
-        parse_from_stdin();
-        return 0;
-    }
-
+JSON11_TEST_CASE(json11_test) {
     const string simple_test =
         R"({"k1":"v1", "k2":42, "k3":["a",123,true,false,null]})";
 
     string err;
-    auto json = Json::parse(simple_test, err);
+    const auto json = Json::parse(simple_test, err);
 
     std::cout << "k1: " << json["k1"].string_value() << "\n";
     std::cout << "k3: " << json["k3"].dump() << "\n";
 
     for (auto &k : json["k3"].array_items()) {
         std::cout << "    - " << k.dump() << "\n";
     }
 
-    const string comment_test = R"({
+    string comment_test = R"({
       // comment /* with nested comment */
       "a": 1,
       // comment
       // continued
       "b": "text",
       /* multi
          line
-         comment */
+         comment
+        // line-comment-inside-multiline-comment
+      */
       // and single-line comment
+      // and single-line comment /* multiline inside single line */
       "c": [1, 2, 3]
+      // and single-line comment at end of object
     })";
 
     string err_comment;
     auto json_comment = Json::parse(
       comment_test, err_comment, JsonParse::COMMENTS);
-    if (!err_comment.empty()) {
-        printf("Failed: %s\n", err_comment.c_str());
-    } else {
-        printf("Result: %s\n", json_comment.dump().c_str());
-    }
-
-    string failing_comment_test = R"({
-      /* bad comment
-      "a": 1,
-    })";
-
+    JSON11_TEST_ASSERT(!json_comment.is_null());
+    JSON11_TEST_ASSERT(err_comment.empty());
+
+    comment_test = "{\"a\": 1}//trailing line comment";
+    json_comment = Json::parse(
+      comment_test, err_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(!json_comment.is_null());
+    JSON11_TEST_ASSERT(err_comment.empty());
+
+    comment_test = "{\"a\": 1}/*trailing multi-line comment*/";
+    json_comment = Json::parse(
+      comment_test, err_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(!json_comment.is_null());
+    JSON11_TEST_ASSERT(err_comment.empty());
+
+    string failing_comment_test = "{\n/* unterminated comment\n\"a\": 1,\n}";
     string err_failing_comment;
     auto json_failing_comment = Json::parse(
       failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
-    if (!err_failing_comment.empty()) {
-        printf("Failed: %s\n", err_failing_comment.c_str());
-    } else {
-        printf("Result: %s\n", json_failing_comment.dump().c_str());
-    }
-
-    failing_comment_test = R"({
-      / / bad comment })";
-
-    json_failing_comment = Json::parse(
-      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
-    if (!err_failing_comment.empty()) {
-        printf("Failed: %s\n", err_failing_comment.c_str());
-    } else {
-        printf("Result: %s\n", json_failing_comment.dump().c_str());
-    }
-
-    failing_comment_test = R"({// bad comment })";
-
-    json_failing_comment = Json::parse(
-      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
-    if (!err_failing_comment.empty()) {
-        printf("Failed: %s\n", err_failing_comment.c_str());
-    } else {
-        printf("Result: %s\n", json_failing_comment.dump().c_str());
-    }
-
-    failing_comment_test = R"({
-          "a": 1
-        }/)";
-
-    json_failing_comment = Json::parse(
-      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
-    if (!err_failing_comment.empty()) {
-        printf("Failed: %s\n", err_failing_comment.c_str());
-    } else {
-        printf("Result: %s\n", json_failing_comment.dump().c_str());
-    }
-
-    failing_comment_test = R"({/* bad
-                                  comment *})";
-
-    json_failing_comment = Json::parse(
-      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
-    if (!err_failing_comment.empty()) {
-        printf("Failed: %s\n", err_failing_comment.c_str());
-    } else {
-        printf("Result: %s\n", json_failing_comment.dump().c_str());
-    }
+    JSON11_TEST_ASSERT(json_failing_comment.is_null());
+    JSON11_TEST_ASSERT(!err_failing_comment.empty());
+
+    failing_comment_test = "{\n/* unterminated trailing comment }";
+    json_failing_comment = Json::parse(
+      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(json_failing_comment.is_null());
+    JSON11_TEST_ASSERT(!err_failing_comment.empty());
+
+    failing_comment_test = "{\n/ / bad comment }";
+    json_failing_comment = Json::parse(
+      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(json_failing_comment.is_null());
+    JSON11_TEST_ASSERT(!err_failing_comment.empty());
+
+    failing_comment_test = "{// bad comment }";
+    json_failing_comment = Json::parse(
+      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(json_failing_comment.is_null());
+    JSON11_TEST_ASSERT(!err_failing_comment.empty());
+
+    failing_comment_test = "{\n\"a\": 1\n}/";
+    json_failing_comment = Json::parse(
+      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(json_failing_comment.is_null());
+    JSON11_TEST_ASSERT(!err_failing_comment.empty());
+
+    failing_comment_test = "{/* bad\ncomment *}";
+    json_failing_comment = Json::parse(
+      failing_comment_test, err_failing_comment, JsonParse::COMMENTS);
+    JSON11_TEST_ASSERT(json_failing_comment.is_null());
+    JSON11_TEST_ASSERT(!err_failing_comment.empty());
 
     std::list<int> l1 { 1, 2, 3 };
     std::vector<int> l2 { 1, 2, 3 };
     std::set<int> l3 { 1, 2, 3 };
-    assert(Json(l1) == Json(l2));
-    assert(Json(l2) == Json(l3));
+    JSON11_TEST_ASSERT(Json(l1) == Json(l2));
+    JSON11_TEST_ASSERT(Json(l2) == Json(l3));
 
     std::map<string, string> m1 { { "k1", "v1" }, { "k2", "v2" } };
     std::unordered_map<string, string> m2 { { "k1", "v1" }, { "k2", "v2" } };
-    assert(Json(m1) == Json(m2));
+    JSON11_TEST_ASSERT(Json(m1) == Json(m2));
 
     // Json literals
-    Json obj = Json::object({
+    const Json obj = Json::object({
         { "k1", "v1" },
         { "k2", 42.0 },
         { "k3", Json::array({ "a", 123.0, true, false, nullptr }) },
     });
 
     std::cout << "obj: " << obj.dump() << "\n";
-
-    assert(Json("a").number_value() == 0);
-    assert(Json("a").string_value() == "a");
-    assert(Json().number_value() == 0);
-
-    assert(obj == json);
-    assert(Json(42) == Json(42.0));
-    assert(Json(42) != Json(42.1));
+    JSON11_TEST_ASSERT(obj.dump() == "{\"k1\": \"v1\", \"k2\": 42, \"k3\": [\"a\", 123, true, false, null]}");
+
+    JSON11_TEST_ASSERT(Json("a").number_value() == 0);
+    JSON11_TEST_ASSERT(Json("a").string_value() == "a");
+    JSON11_TEST_ASSERT(Json().number_value() == 0);
+
+    JSON11_TEST_ASSERT(obj == json);
+    JSON11_TEST_ASSERT(Json(42) == Json(42.0));
+    JSON11_TEST_ASSERT(Json(42) != Json(42.1));
 
     const string unicode_escape_test =
         R"([ "blah\ud83d\udca9blah\ud83dblah\udca9blah\u0000blah\u1234" ])";
 
     const char utf8[] = "blah" "\xf0\x9f\x92\xa9" "blah" "\xed\xa0\xbd" "blah"
                         "\xed\xb2\xa9" "blah" "\0" "blah" "\xe1\x88\xb4";
 
     Json uni = Json::parse(unicode_escape_test, err);
-    assert(uni[0].string_value().size() == (sizeof utf8) - 1);
-    assert(std::memcmp(uni[0].string_value().data(), utf8, sizeof utf8) == 0);
-
-    // Demonstrates the behavior change in Xcode 7 / Clang 3.7 described
-    // here: https://llvm.org/bugs/show_bug.cgi?id=23812
-    Json nested_array = Json::array { Json::array { 1, 2, 3 } };
-    assert(nested_array.is_array());
-    assert(nested_array.array_items().size() == 1);
-    assert(nested_array.array_items()[0].is_array());
-    assert(nested_array.array_items()[0].array_items().size() == 3);
+    JSON11_TEST_ASSERT(uni[0].string_value().size() == (sizeof utf8) - 1);
+    JSON11_TEST_ASSERT(std::memcmp(uni[0].string_value().data(), utf8, sizeof utf8) == 0);
+
+    // Demonstrates the behavior change in Xcode 7 / Clang 3.7, introduced by DR1467
+    // and described here: https://llvm.org/bugs/show_bug.cgi?id=23812
+    if (JSON11_ENABLE_DR1467_CANARY) {
+        Json nested_array = Json::array { Json::array { 1, 2, 3 } };
+        JSON11_TEST_ASSERT(nested_array.is_array());
+        JSON11_TEST_ASSERT(nested_array.array_items().size() == 1);
+        JSON11_TEST_ASSERT(nested_array.array_items()[0].is_array());
+        JSON11_TEST_ASSERT(nested_array.array_items()[0].array_items().size() == 3);
+    }
+
+    {
+        const std::string good_json = R"( {"k1" : "v1"})";
+        const std::string bad_json1 = good_json + " {";
+        const std::string bad_json2 = good_json + R"({"k2":"v2", "k3":[)";
+        struct TestMultiParse {
+            std::string input;
+            std::string::size_type expect_parser_stop_pos;
+            size_t expect_not_empty_elms_count;
+            Json expect_parse_res;
+        } tests[] = {
+            {" {", 0, 0, {}},
+            {good_json, good_json.size(), 1, Json(std::map<string, string>{ { "k1", "v1" } })},
+            {bad_json1, good_json.size() + 1, 1, Json(std::map<string, string>{ { "k1", "v1" } })},
+            {bad_json2, good_json.size(), 1, Json(std::map<string, string>{ { "k1", "v1" } })},
+            {"{}", 2, 1, Json::object{}},
+        };
+        for (const auto &tst : tests) {
+            std::string::size_type parser_stop_pos;
+            std::string err;
+            auto res = Json::parse_multi(tst.input, parser_stop_pos, err);
+            JSON11_TEST_ASSERT(parser_stop_pos == tst.expect_parser_stop_pos);
+            JSON11_TEST_ASSERT(
+                (size_t)std::count_if(res.begin(), res.end(),
+                                      [](const Json& j) { return !j.is_null(); })
+                == tst.expect_not_empty_elms_count);
+            if (!res.empty()) {
+                JSON11_TEST_ASSERT(tst.expect_parse_res == res[0]);
+            }
+        }
+    }
 
     Json my_json = Json::object {
         { "key1", "value1" },
         { "key2", false },
         { "key3", Json::array { 1, 2, 3 } },
     };
-    std::string json_str = my_json.dump();
-    printf("%s\n", json_str.c_str());
+    std::string json_obj_str = my_json.dump();
+    std::cout << "json_obj_str: " << json_obj_str << "\n";
+    JSON11_TEST_ASSERT(json_obj_str == "{\"key1\": \"value1\", \"key2\": false, \"key3\": [1, 2, 3]}");
 
     class Point {
     public:
         int x;
         int y;

         Json to_json() const { return Json::array { x, y }; }
     };
 
     std::vector<Point> points = { { 1, 2 }, { 10, 20 }, { 100, 200 } };
     std::string points_json = Json(points).dump();
-    printf("%s\n", points_json.c_str());
+    std::cout << "points_json: " << points_json << "\n";
+    JSON11_TEST_ASSERT(points_json == "[[1, 2], [10, 20], [100, 200]]");
 }
+
+#if JSON11_TEST_STANDALONE_MAIN
+
+static void parse_from_stdin() {
+    string buf;
+    string line;
+    while (std::getline(std::cin, line)) {
+        buf += line + "\n";
+    }
+
+    string err;
+    auto json = Json::parse(buf, err);
+    if (!err.empty()) {
+        printf("Failed: %s\n", err.c_str());
+    } else {
+        printf("Result: %s\n", json.dump().c_str());
+    }
+}
+
+int main(int argc, char **argv) {
+    if (argc == 2 && argv[1] == string("--stdin")) {
+        parse_from_stdin();
+        return 0;
+    }
+
+    json11_test();
+}
+
+#endif // JSON11_TEST_STANDALONE_MAIN
+
+// Insert user-defined suffix code (function definitions, etc)
+// to set up a custom test suite
+JSON11_TEST_CPP_SUFFIX_CODE