2 * Copyright 2015 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #include <folly/dynamic.h>
19 #include <boost/next_prior.hpp>
20 #include <gflags/gflags.h>
21 #include <gtest/gtest.h>
25 // This test runs without any external dependencies, including json.
26 // This means that if there's a test failure, there's no way to print
27 // a useful runtime representation of the folly::dynamic. We will
28 // live with this in order to test dependencies. This method is
29 // normally provided by json.cpp.
30 void dynamic::print_as_pseudo_json(std::ostream& out) const {
31 out << "<folly::dynamic object of type " << type_ << ">";
34 TEST(Dynamic, ObjectBasics) {
35 dynamic obj = dynamic::object("a", false);
36 EXPECT_EQ(obj.at("a"), false);
37 EXPECT_EQ(obj.size(), 1);
38 obj.insert("a", true);
39 EXPECT_EQ(obj.size(), 1);
40 EXPECT_EQ(obj.at("a"), true);
41 obj.at("a") = nullptr;
42 EXPECT_EQ(obj.size(), 1);
43 EXPECT_TRUE(obj.at("a") == nullptr);
45 dynamic newObject = dynamic::object;
48 EXPECT_EQ(newObject.size(), 1);
49 newObject["a"] = true;
50 EXPECT_EQ(newObject.size(), 2);
52 EXPECT_EQ(*newObject.keys().begin(), newObject.items().begin()->first);
53 EXPECT_EQ(*newObject.values().begin(), newObject.items().begin()->second);
54 std::vector<std::pair<folly::fbstring, dynamic>> found;
55 found.emplace_back(newObject.keys().begin()->asString(),
56 *newObject.values().begin());
58 EXPECT_EQ(*boost::next(newObject.keys().begin()),
59 boost::next(newObject.items().begin())->first);
60 EXPECT_EQ(*boost::next(newObject.values().begin()),
61 boost::next(newObject.items().begin())->second);
62 found.emplace_back(boost::next(newObject.keys().begin())->asString(),
63 *boost::next(newObject.values().begin()));
65 std::sort(found.begin(), found.end());
67 EXPECT_EQ("a", found[0].first);
68 EXPECT_TRUE(found[0].second.asBool());
70 EXPECT_EQ("z", found[1].first);
71 EXPECT_EQ(12, found[1].second.asInt());
73 dynamic obj2 = dynamic::object;
74 EXPECT_TRUE(obj2.isObject());
77 EXPECT_TRUE(d3 == nullptr);
79 EXPECT_TRUE(d3.isObject());
80 d3["foo"] = { 1, 2, 3 };
81 EXPECT_EQ(d3.count("foo"), 1);
84 EXPECT_EQ(d3.at(123), 321);
87 EXPECT_EQ(d3.at("123"), 42);
88 EXPECT_EQ(d3.at(123), 321);
90 dynamic objInsert = folly::dynamic::object();
91 dynamic objA = folly::dynamic::object("1", "2");
92 dynamic objB = folly::dynamic::object("1", "2");
94 objInsert.insert("1", std::move(objA));
95 objInsert.insert("1", std::move(objB));
97 EXPECT_EQ(objInsert.find("1")->second.size(), 1);
99 // We don't allow objects as keys in objects.
100 EXPECT_ANY_THROW(newObject[d3] = 12);
103 TEST(Dynamic, ObjectErase) {
104 dynamic obj = dynamic::object("key1", "val")
106 EXPECT_EQ(obj.count("key1"), 1);
107 EXPECT_EQ(obj.count("key2"), 1);
108 EXPECT_EQ(obj.erase("key1"), 1);
109 EXPECT_EQ(obj.count("key1"), 0);
110 EXPECT_EQ(obj.count("key2"), 1);
111 EXPECT_EQ(obj.erase("key1"), 0);
113 EXPECT_EQ(obj.count("key1"), 1);
114 EXPECT_EQ(obj.count("key2"), 1);
115 auto it = obj.find("key2");
117 EXPECT_EQ(obj.count("key1"), 1);
118 EXPECT_EQ(obj.count("key2"), 0);
122 EXPECT_EQ(obj.size(), 3);
123 auto ret = obj.erase(boost::next(obj.items().begin()), obj.items().end());
124 EXPECT_TRUE(ret == obj.items().end());
125 EXPECT_EQ(obj.size(), 1);
126 obj.erase(obj.items().begin());
127 EXPECT_TRUE(obj.empty());
130 TEST(Dynamic, ArrayErase) {
131 dynamic arr = { 1, 2, 3, 4, 5, 6 };
133 EXPECT_THROW(arr.erase(1), std::exception);
134 EXPECT_EQ(arr.size(), 6);
135 EXPECT_EQ(arr[0], 1);
136 arr.erase(arr.begin());
137 EXPECT_EQ(arr.size(), 5);
139 arr.erase(boost::next(arr.begin()), boost::prior(arr.end()));
140 EXPECT_EQ(arr.size(), 2);
141 EXPECT_EQ(arr[0], 2);
142 EXPECT_EQ(arr[1], 6);
145 TEST(Dynamic, StringBasics) {
146 dynamic str = "hello world";
147 EXPECT_EQ(11, str.size());
148 EXPECT_FALSE(str.empty());
150 EXPECT_TRUE(str.empty());
153 TEST(Dynamic, ArrayBasics) {
154 dynamic array = { 1, 2, 3 };
155 EXPECT_EQ(array.size(), 3);
156 EXPECT_EQ(array.at(0), 1);
157 EXPECT_EQ(array.at(1), 2);
158 EXPECT_EQ(array.at(2), 3);
160 EXPECT_ANY_THROW(array.at(3));
162 array.push_back("foo");
163 EXPECT_EQ(array.size(), 4);
165 array.resize(12, "something");
166 EXPECT_EQ(array.size(), 12);
167 EXPECT_EQ(array[11], "something");
170 TEST(Dynamic, DeepCopy) {
171 dynamic val = { "foo", "bar", { "foo1", "bar1" } };
172 EXPECT_EQ(val.at(2).at(0), "foo1");
173 EXPECT_EQ(val.at(2).at(1), "bar1");
175 EXPECT_EQ(val2.at(2).at(0), "foo1");
176 EXPECT_EQ(val2.at(2).at(1), "bar1");
177 EXPECT_EQ(val.at(2).at(0), "foo1");
178 EXPECT_EQ(val.at(2).at(1), "bar1");
179 val2.at(2).at(0) = "foo3";
180 val2.at(2).at(1) = "bar3";
181 EXPECT_EQ(val.at(2).at(0), "foo1");
182 EXPECT_EQ(val.at(2).at(1), "bar1");
183 EXPECT_EQ(val2.at(2).at(0), "foo3");
184 EXPECT_EQ(val2.at(2).at(1), "bar3");
186 dynamic obj = dynamic::object("a", "b")
187 ("c", {"d", "e", "f"})
189 EXPECT_EQ(obj.at("a"), "b");
191 obj2.at("a") = {1, 2, 3};
192 EXPECT_EQ(obj.at("a"), "b");
193 dynamic expected = {1, 2, 3};
194 EXPECT_EQ(obj2.at("a"), expected);
197 TEST(Dynamic, Operator) {
200 dynamic d1 = dynamic::object;
201 dynamic d2 = dynamic::object;
203 } catch (std::exception const& e) {
210 dynamic sum = foo + bar;
211 EXPECT_EQ(sum, "asdbar");
215 dynamic math = some / nums;
219 TEST(Dynamic, Conversions) {
220 dynamic str = "12.0";
221 EXPECT_EQ(str.asDouble(), 12.0);
222 EXPECT_ANY_THROW(str.asInt());
223 EXPECT_ANY_THROW(str.asBool());
226 EXPECT_EQ(str.asInt(), 12);
227 EXPECT_EQ(str.asDouble(), 12.0);
229 EXPECT_EQ(str.asBool(), false);
230 EXPECT_EQ(str.asInt(), 0);
231 EXPECT_EQ(str.asDouble(), 0);
232 EXPECT_EQ(str.asString(), "0");
235 EXPECT_EQ("12", num.asString());
236 EXPECT_EQ(12.0, num.asDouble());
239 TEST(Dynamic, GetSetDefaultTest) {
240 dynamic d1 = dynamic::object("foo", "bar");
241 EXPECT_EQ(d1.getDefault("foo", "baz"), "bar");
242 EXPECT_EQ(d1.getDefault("quux", "baz"), "baz");
244 dynamic d2 = dynamic::object("foo", "bar");
245 EXPECT_EQ(d2.setDefault("foo", "quux"), "bar");
246 d2.setDefault("bar", dynamic({})).push_back(42);
247 EXPECT_EQ(d2["bar"][0], 42);
249 dynamic d3 = dynamic::object, empty = dynamic::object;
250 EXPECT_EQ(d3.getDefault("foo"), empty);
251 d3.setDefault("foo")["bar"] = "baz";
252 EXPECT_EQ(d3["foo"]["bar"], "baz");
254 // we do not allow getDefault/setDefault on arrays
255 dynamic d4 = dynamic({});
256 EXPECT_ANY_THROW(d4.getDefault("foo", "bar"));
257 EXPECT_ANY_THROW(d4.setDefault("foo", "bar"));
260 TEST(Dynamic, ObjectForwarding) {
261 // Make sure dynamic::object can be constructed the same way as any
263 dynamic d = dynamic::object("asd", {"foo", "bar"});
264 dynamic d2 = dynamic::object("key2", {"value", "words"})
268 TEST(Dynamic, GetPtr) {
269 dynamic array = { 1, 2, "three" };
270 EXPECT_TRUE(array.get_ptr(0));
271 EXPECT_FALSE(array.get_ptr(3));
272 EXPECT_EQ(dynamic("three"), *array.get_ptr(2));
273 const dynamic& carray = array;
274 EXPECT_EQ(dynamic("three"), *carray.get_ptr(2));
276 dynamic object = dynamic::object("one", 1)("two", 2);
277 EXPECT_TRUE(object.get_ptr("one"));
278 EXPECT_FALSE(object.get_ptr("three"));
279 EXPECT_EQ(dynamic(2), *object.get_ptr("two"));
280 *object.get_ptr("one") = 11;
281 EXPECT_EQ(dynamic(11), *object.get_ptr("one"));
282 const dynamic& cobject = object;
283 EXPECT_EQ(dynamic(2), *cobject.get_ptr("two"));
286 TEST(Dynamic, Assignment) {
287 const dynamic ds[] = { { 1, 2, 3 },
288 dynamic::object("a", true),
293 const dynamic dd[] = { { 5, 6 },
294 dynamic::object("t", "T")(1, 7),
299 for (const auto& source : ds) {
300 for (const auto& dest : dd) {
302 EXPECT_EQ(tmp, dest);
304 EXPECT_EQ(tmp, source);
309 int main(int argc, char** argv) {
310 testing::InitGoogleTest(&argc, argv);
311 gflags::ParseCommandLineFlags(&argc, &argv, true);
312 return RUN_ALL_TESTS();