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JsonArray::remove() and JsonObject::remove() now release the memory of the variant

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This commit is contained in:
Benoit Blanchon
2018-10-19 19:40:21 +02:00
parent ae089dcff7
commit d8d939660b
15 changed files with 174 additions and 37 deletions
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62
test/JsonDocument/DynamicJsonDocument.cpp
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@ -92,4 +92,66 @@ TEST_CASE("DynamicJsonDocument") {
REQUIRE(json == "{\"hello\":\"world\"}");
REQUIRE(ddoc.nestingLimit == 42);
}
SECTION("memoryUsage()") {
typedef ARDUINOJSON_NAMESPACE::Slot Slot;
SECTION("Increases after adding value to array") {
JsonArray arr = doc.to<JsonArray>();
arr.add(42);
REQUIRE(sizeof(Slot) == doc.memoryUsage());
arr.add(43);
REQUIRE(2 * sizeof(Slot) == doc.memoryUsage());
}
SECTION("Decreases after remove value from array") {
JsonArray arr = doc.to<JsonArray>();
arr.add(42);
arr.add(43);
arr.remove(1);
REQUIRE(sizeof(Slot) == doc.memoryUsage());
arr.remove(0);
REQUIRE(0 == doc.memoryUsage());
}
SECTION("Increases after adding value to object") {
JsonObject obj = doc.to<JsonObject>();
obj["a"] = 1;
REQUIRE(sizeof(Slot) == doc.memoryUsage());
obj["b"] = 2;
REQUIRE(2 * sizeof(Slot) == doc.memoryUsage());
}
SECTION("Decreases after removing value from object") {
JsonObject obj = doc.to<JsonObject>();
obj["a"] = 1;
obj["b"] = 2;
obj.remove("a");
REQUIRE(sizeof(Slot) == doc.memoryUsage());
obj.remove("b");
REQUIRE(0 == doc.memoryUsage());
}
SECTION("Decreases after removing nested object from array") {
JsonArray arr = doc.to<JsonArray>();
JsonObject obj = arr.createNestedObject();
obj["hello"] = "world";
arr.remove(0);
REQUIRE(0 == doc.memoryUsage());
}
SECTION("Decreases after removing nested array from object") {
JsonObject obj = doc.to<JsonObject>();
JsonArray arr = obj.createNestedArray("hello");
arr.add("world");
obj.remove("hello");
REQUIRE(0 == doc.memoryUsage());
}
}
}