Added JsonArray::copyTo() and JsonArray::copyFrom() (issue #254)

test/JsonArray_CopyFrom_Tests.cpp

@@ -0,0 +1,64 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include <ArduinoJson.h>
+#include <gtest/gtest.h>
+
+TEST(JsonArray_CopyFrom_Tests, OneDimension) {
+  DynamicJsonBuffer jsonBuffer;
+  JsonArray& array = jsonBuffer.createArray();
+  char json[32];
+  int source[] = {1, 2, 3};
+
+  bool ok = array.copyFrom(source);
+  ASSERT_TRUE(ok);
+
+  array.printTo(json, sizeof(json));
+  ASSERT_STREQ("[1,2,3]", json);
+}
+
+TEST(JsonArray_CopyFrom_Tests, OneDimension_JsonBufferTooSmall) {
+  const size_t SIZE = JSON_ARRAY_SIZE(2);
+  StaticJsonBuffer<SIZE> jsonBuffer;
+  JsonArray& array = jsonBuffer.createArray();
+  char json[32];
+  int source[] = {1, 2, 3};
+
+  bool ok = array.copyFrom(source);
+  ASSERT_FALSE(ok);
+
+  array.printTo(json, sizeof(json));
+  ASSERT_STREQ("[1,2]", json);
+}
+
+TEST(JsonArray_CopyFrom_Tests, TwoDimensions) {
+  DynamicJsonBuffer jsonBuffer;
+  JsonArray& array = jsonBuffer.createArray();
+  char json[32];
+  int source[][3] = {{1, 2, 3}, {4, 5, 6}};
+
+  bool ok = array.copyFrom(source);
+  ASSERT_TRUE(ok);
+
+  array.printTo(json, sizeof(json));
+  ASSERT_STREQ("[[1,2,3],[4,5,6]]", json);
+}
+
+TEST(JsonArray_CopyFrom_Tests, TwoDimensions_JsonBufferTooSmall) {
+  const size_t SIZE =
+      JSON_ARRAY_SIZE(2) + JSON_ARRAY_SIZE(3) + JSON_ARRAY_SIZE(2);
+  StaticJsonBuffer<SIZE> jsonBuffer;
+  JsonArray& array = jsonBuffer.createArray();
+  char json[32];
+  int source[][3] = {{1, 2, 3}, {4, 5, 6}};
+
+  bool ok = array.copyFrom(source);
+  ASSERT_FALSE(ok);
+
+  array.printTo(json, sizeof(json));
+  ASSERT_STREQ("[[1,2,3],[4,5]]", json);
+}

test/JsonArray_CopyTo_Tests.cpp

@@ -0,0 +1,56 @@
+// Copyright Benoit Blanchon 2014-2016
+// MIT License
+//
+// Arduino JSON library
+// https://github.com/bblanchon/ArduinoJson
+// If you like this project, please add a star!
+
+#include <ArduinoJson.h>
+#include <gtest/gtest.h>
+
+TEST(JsonArray_CopyTo_Tests, BiggerOneDimensionIntegerArray) {
+  char json[] = "[1,2,3]";
+
+  DynamicJsonBuffer jsonBuffer;
+  JsonArray& array = jsonBuffer.parseArray(json);
+
+  int destination[4] = {0};
+  size_t result = array.copyTo(destination);
+
+  ASSERT_EQ(3, result);
+  ASSERT_EQ(1, destination[0]);
+  ASSERT_EQ(2, destination[1]);
+  ASSERT_EQ(3, destination[2]);
+  ASSERT_EQ(0, destination[3]);
+}
+
+TEST(JsonArray_CopyTo_Tests, SmallerOneDimensionIntegerArray) {
+  char json[] = "[1,2,3]";
+
+  DynamicJsonBuffer jsonBuffer;
+  JsonArray& array = jsonBuffer.parseArray(json);
+
+  int destination[2] = {0};
+  size_t result = array.copyTo(destination);
+
+  ASSERT_EQ(2, result);
+  ASSERT_EQ(1, destination[0]);
+  ASSERT_EQ(2, destination[1]);
+}
+
+TEST(JsonArray_CopyTo_Tests, TwoOneDimensionIntegerArray) {
+  char json[] = "[[1,2],[3],[4]]";
+
+  DynamicJsonBuffer jsonBuffer;
+  JsonArray& array = jsonBuffer.parseArray(json);
+
+  int destination[3][2] = {0};
+  array.copyTo(destination);
+
+  ASSERT_EQ(1, destination[0][0]);
+  ASSERT_EQ(2, destination[0][1]);
+  ASSERT_EQ(3, destination[1][0]);
+  ASSERT_EQ(0, destination[1][1]);
+  ASSERT_EQ(4, destination[2][0]);
+  ASSERT_EQ(0, destination[2][1]);
+}