ArduinoJson/test/JsonVariant/subscript.cpp

// Copyright Benoit Blanchon 2014-2017
// MIT License
//
// Arduino JSON library
// https://bblanchon.github.io/ArduinoJson/
// If you like this project, please add a star!

#include <ArduinoJson.h>
#include <gtest/gtest.h>

class JsonVariant_Subscript_Tests : public ::testing::Test {
 protected:
  DynamicJsonBuffer _jsonBuffer;
  JsonVariant _variant;
};

TEST_F(JsonVariant_Subscript_Tests, Array) {
  JsonArray &array = _jsonBuffer.createArray();
  array.add("element at index 0");
  array.add("element at index 1");

  _variant = array;

  EXPECT_EQ(2, _variant.size());
  EXPECT_STREQ("element at index 0", _variant[0]);
  EXPECT_STREQ("element at index 1", _variant[1]);
  EXPECT_STREQ("element at index 0",
               _variant[static_cast<unsigned char>(0)]);  // issue #381
  EXPECT_FALSE(_variant[-1].success());
  EXPECT_FALSE(_variant[3].success());
  EXPECT_FALSE(_variant["0"].success());
}

TEST_F(JsonVariant_Subscript_Tests, Object) {
  JsonObject &object = _jsonBuffer.createObject();
  object["a"] = "element at key \"a\"";
  object["b"] = "element at key \"b\"";

  _variant = object;

  EXPECT_EQ(2, _variant.size());
  EXPECT_STREQ("element at key \"a\"", _variant["a"]);
  EXPECT_STREQ("element at key \"b\"", _variant["b"]);
  EXPECT_FALSE(_variant["c"].success());
  EXPECT_FALSE(_variant[0].success());
}

TEST_F(JsonVariant_Subscript_Tests, Undefined) {
  _variant = JsonVariant();
  EXPECT_EQ(0, _variant.size());
  EXPECT_FALSE(_variant["0"].success());
  EXPECT_FALSE(_variant[0].success());
}

TEST_F(JsonVariant_Subscript_Tests, String) {
  _variant = "hello world";
  EXPECT_EQ(0, _variant.size());
  EXPECT_FALSE(_variant["0"].success());
  EXPECT_FALSE(_variant[0].success());
}

TEST_F(JsonVariant_Subscript_Tests, ObjectSetValue) {
  _variant = _jsonBuffer.createObject();
  _variant["hello"] = "world";
  EXPECT_EQ(1, _variant.size());
  EXPECT_STREQ("world", _variant["hello"]);
}

TEST_F(JsonVariant_Subscript_Tests, ArraySetValue) {
  _variant = _jsonBuffer.parseArray("[\"hello\"]");
  _variant[0] = "world";
  EXPECT_EQ(1, _variant.size());
  EXPECT_STREQ("world", _variant[0]);
}

TEST_F(JsonVariant_Subscript_Tests, NestedObjectSetValue) {
  _variant = _jsonBuffer.parseArray("[{}]");
  _variant[0]["hello"] = "world";
  EXPECT_EQ(1, _variant.size());
  EXPECT_EQ(1, _variant[0].size());
  EXPECT_STREQ("world", _variant[0]["hello"]);
}