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(-1));
161 EXPECT_ANY_THROW(array.at(3));
163 array.push_back("foo");
164 EXPECT_EQ(array.size(), 4);
166 array.resize(12, "something");
167 EXPECT_EQ(array.size(), 12);
168 EXPECT_EQ(array[11], "something");
171 TEST(Dynamic, DeepCopy) {
172 dynamic val = { "foo", "bar", { "foo1", "bar1" } };
173 EXPECT_EQ(val.at(2).at(0), "foo1");
174 EXPECT_EQ(val.at(2).at(1), "bar1");
176 EXPECT_EQ(val2.at(2).at(0), "foo1");
177 EXPECT_EQ(val2.at(2).at(1), "bar1");
178 EXPECT_EQ(val.at(2).at(0), "foo1");
179 EXPECT_EQ(val.at(2).at(1), "bar1");
180 val2.at(2).at(0) = "foo3";
181 val2.at(2).at(1) = "bar3";
182 EXPECT_EQ(val.at(2).at(0), "foo1");
183 EXPECT_EQ(val.at(2).at(1), "bar1");
184 EXPECT_EQ(val2.at(2).at(0), "foo3");
185 EXPECT_EQ(val2.at(2).at(1), "bar3");
187 dynamic obj = dynamic::object("a", "b")
188 ("c", {"d", "e", "f"})
190 EXPECT_EQ(obj.at("a"), "b");
192 obj2.at("a") = {1, 2, 3};
193 EXPECT_EQ(obj.at("a"), "b");
194 dynamic expected = {1, 2, 3};
195 EXPECT_EQ(obj2.at("a"), expected);
198 TEST(Dynamic, Operator) {
201 dynamic d1 = dynamic::object;
202 dynamic d2 = dynamic::object;
204 } catch (std::exception const& e) {
211 dynamic sum = foo + bar;
212 EXPECT_EQ(sum, "asdbar");
216 dynamic math = some / nums;
220 TEST(Dynamic, Conversions) {
221 dynamic str = "12.0";
222 EXPECT_EQ(str.asDouble(), 12.0);
223 EXPECT_ANY_THROW(str.asInt());
224 EXPECT_ANY_THROW(str.asBool());
227 EXPECT_EQ(str.asInt(), 12);
228 EXPECT_EQ(str.asDouble(), 12.0);
230 EXPECT_EQ(str.asBool(), false);
231 EXPECT_EQ(str.asInt(), 0);
232 EXPECT_EQ(str.asDouble(), 0);
233 EXPECT_EQ(str.asString(), "0");
236 EXPECT_EQ("12", num.asString());
237 EXPECT_EQ(12.0, num.asDouble());
240 TEST(Dynamic, GetSetDefaultTest) {
241 dynamic d1 = dynamic::object("foo", "bar");
242 EXPECT_EQ(d1.getDefault("foo", "baz"), "bar");
243 EXPECT_EQ(d1.getDefault("quux", "baz"), "baz");
245 dynamic d2 = dynamic::object("foo", "bar");
246 EXPECT_EQ(d2.setDefault("foo", "quux"), "bar");
247 d2.setDefault("bar", dynamic({})).push_back(42);
248 EXPECT_EQ(d2["bar"][0], 42);
250 dynamic d3 = dynamic::object, empty = dynamic::object;
251 EXPECT_EQ(d3.getDefault("foo"), empty);
252 d3.setDefault("foo")["bar"] = "baz";
253 EXPECT_EQ(d3["foo"]["bar"], "baz");
255 // we do not allow getDefault/setDefault on arrays
256 dynamic d4 = dynamic({});
257 EXPECT_ANY_THROW(d4.getDefault("foo", "bar"));
258 EXPECT_ANY_THROW(d4.setDefault("foo", "bar"));
261 TEST(Dynamic, ObjectForwarding) {
262 // Make sure dynamic::object can be constructed the same way as any
264 dynamic d = dynamic::object("asd", {"foo", "bar"});
265 dynamic d2 = dynamic::object("key2", {"value", "words"})
269 TEST(Dynamic, GetPtr) {
270 dynamic array = { 1, 2, "three" };
271 EXPECT_TRUE(array.get_ptr(0));
272 EXPECT_FALSE(array.get_ptr(-1));
273 EXPECT_FALSE(array.get_ptr(3));
274 EXPECT_EQ(dynamic("three"), *array.get_ptr(2));
275 const dynamic& carray = array;
276 EXPECT_EQ(dynamic("three"), *carray.get_ptr(2));
278 dynamic object = dynamic::object("one", 1)("two", 2);
279 EXPECT_TRUE(object.get_ptr("one"));
280 EXPECT_FALSE(object.get_ptr("three"));
281 EXPECT_EQ(dynamic(2), *object.get_ptr("two"));
282 *object.get_ptr("one") = 11;
283 EXPECT_EQ(dynamic(11), *object.get_ptr("one"));
284 const dynamic& cobject = object;
285 EXPECT_EQ(dynamic(2), *cobject.get_ptr("two"));
288 TEST(Dynamic, Assignment) {
289 const dynamic ds[] = { { 1, 2, 3 },
290 dynamic::object("a", true),
295 const dynamic dd[] = { { 5, 6 },
296 dynamic::object("t", "T")(1, 7),
301 for (const auto& source : ds) {
302 for (const auto& dest : dd) {
304 EXPECT_EQ(tmp, dest);
306 EXPECT_EQ(tmp, source);
311 folly::fbstring make_long_string() {
312 return folly::fbstring(100, 'a');
315 TEST(Dynamic, GetDefault) {
316 const auto s = make_long_string();
319 dynamic d1 = dynamic::object("key1", s);
320 dynamic d2 = dynamic::object("key2", s);
321 dynamic d3 = dynamic::object("key3", s);
322 dynamic d4 = dynamic::object("key4", s);
325 EXPECT_EQ(ds, d1.getDefault("key1", ayy));
326 EXPECT_EQ(ds, d1.getDefault("key1", ayy));
327 EXPECT_EQ(ds, d1.getDefault("not-a-key", tmp));
330 EXPECT_EQ(ds, d1.getDefault("key1", "ayy"));
331 EXPECT_EQ(ds, d1.getDefault("key1", "ayy"));
332 EXPECT_EQ(ds, d1.getDefault("not-a-key", std::move(tmp)));
336 EXPECT_EQ(ds, std::move(d1).getDefault("key1", ayy));
337 EXPECT_NE(ds, d1["key1"]);
338 EXPECT_EQ(ds, std::move(d2).getDefault("not-a-key", tmp));
339 EXPECT_EQ(dynamic(dynamic::object("key2", s)), d2);
342 EXPECT_EQ(ds, std::move(d3).getDefault("key3", std::move(tmp)));
343 EXPECT_NE(ds, d3["key3"]);
345 EXPECT_EQ(ds, std::move(d4).getDefault("not-a-key", std::move(tmp)));
346 EXPECT_EQ(dynamic(dynamic::object("key4", s)), d4);
350 TEST(Dynamic, GetString) {
351 const dynamic c(make_long_string());
352 dynamic d(make_long_string());
353 dynamic m(make_long_string());
355 auto s = make_long_string();
357 EXPECT_EQ(s, c.getString());
358 EXPECT_EQ(s, c.getString());
360 d.getString() += " hello";
361 EXPECT_EQ(s + " hello", d.getString());
362 EXPECT_EQ(s + " hello", d.getString());
364 EXPECT_EQ(s, std::move(m).getString());
365 EXPECT_NE(dynamic(s), m);
368 TEST(Dynamic, GetSmallThings) {
369 const dynamic cint(5);
370 const dynamic cdouble(5.0);
371 const dynamic cbool(true);
373 dynamic ddouble(5.0);
376 dynamic mdouble(5.0);
379 EXPECT_EQ(5, cint.getInt());
381 EXPECT_EQ(6, dint.getInt());
382 EXPECT_EQ(5, std::move(mint).getInt());
384 EXPECT_EQ(5.0, cdouble.getDouble());
385 ddouble.getDouble() = 6.0;
386 EXPECT_EQ(6.0, ddouble.getDouble());
387 EXPECT_EQ(5.0, std::move(mdouble).getDouble());
389 EXPECT_EQ(true, cbool.getBool());
390 dbool.getBool() = false;
391 EXPECT_FALSE(dbool.getBool());
392 EXPECT_EQ(true, std::move(mbool).getBool());
396 const dynamic cd = dynamic::object("key1", make_long_string());
397 dynamic dd = dynamic::object("key1", make_long_string());
398 dynamic md = dynamic::object("key1", make_long_string());
400 dynamic ds(make_long_string());
401 EXPECT_EQ(ds, cd.at("key1"));
402 EXPECT_EQ(ds, cd.at("key1"));
404 dd.at("key1").getString() += " hello";
405 EXPECT_EQ(dynamic(make_long_string() + " hello"), dd.at("key1"));
406 EXPECT_EQ(dynamic(make_long_string() + " hello"), dd.at("key1"));
408 EXPECT_EQ(ds, std::move(md).at("key1"));
409 EXPECT_NE(ds, md.at("key1"));
412 TEST(Dynamic, Brackets) {
413 const dynamic cd = dynamic::object("key1", make_long_string());
414 dynamic dd = dynamic::object("key1", make_long_string());
415 dynamic md = dynamic::object("key1", make_long_string());
417 dynamic ds(make_long_string());
418 EXPECT_EQ(ds, cd["key1"]);
419 EXPECT_EQ(ds, cd["key1"]);
421 dd["key1"].getString() += " hello";
422 EXPECT_EQ(dynamic(make_long_string() + " hello"), dd["key1"]);
423 EXPECT_EQ(dynamic(make_long_string() + " hello"), dd["key1"]);
425 EXPECT_EQ(ds, std::move(md)["key1"]);
426 EXPECT_NE(ds, md["key1"]);
429 int main(int argc, char** argv) {
430 testing::InitGoogleTest(&argc, argv);
431 gflags::ParseCommandLineFlags(&argc, &argv, true);
432 return RUN_ALL_TESTS();