ladybird/Tests/AK/TestJSON.cpp
Andreas Kling a409b832fa AK: Make JsonValue::from_string("") return a null JsonValue
This unbreaks the /var/run/utmp system which starts out as an empty
string, and is then turned into an object by the first update.

This isn't necessarily the best way for this to work, but it's how
it used to work, so this just fixes the regression for now.
2021-12-16 22:48:17 +01:00

130 lines
3.6 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/HashMap.h>
#include <AK/JsonObject.h>
#include <AK/JsonValue.h>
#include <AK/String.h>
#include <AK/StringBuilder.h>
TEST_CASE(load_form)
{
String raw_form_json = R"(
{
"name": "Form1",
"widgets": [
{
"enabled": true,
"forecolor": "#000000ff",
"ruler_visible": false,
"autofill": false,
"x": 155,
"tooltip": null,
"height": 121,
"width": 126,
"y": 10,
"class": "GTextEditor",
"text": "Hi",
"backcolor": "#c0c0c0ff",
"visible":true
}
]
})";
JsonValue form_json = JsonValue::from_string(raw_form_json).value();
EXPECT(form_json.is_object());
auto name = form_json.as_object().get("name").to_string();
EXPECT_EQ(name, "Form1");
auto widgets = form_json.as_object().get("widgets").as_array();
widgets.for_each([&](const JsonValue& widget_value) {
auto& widget_object = widget_value.as_object();
auto widget_class = widget_object.get("class").as_string();
widget_object.for_each_member([&]([[maybe_unused]] auto& property_name, [[maybe_unused]] const JsonValue& property_value) {
});
});
}
TEST_CASE(json_empty_string)
{
auto json = JsonValue::from_string("\"\"").value();
EXPECT_EQ(json.type(), JsonValue::Type::String);
EXPECT_EQ(json.as_string().is_null(), false);
EXPECT_EQ(json.as_string().is_empty(), true);
}
TEST_CASE(json_string)
{
auto json = JsonValue::from_string("\"A\"").value();
EXPECT_EQ(json.type(), JsonValue::Type::String);
EXPECT_EQ(json.as_string().is_null(), false);
EXPECT_EQ(json.as_string().length(), size_t { 1 });
EXPECT_EQ(json.as_string() == "A", true);
}
TEST_CASE(json_utf8_character)
{
auto json = JsonValue::from_string("\"\\u0041\"").value();
EXPECT_EQ(json.type(), JsonValue::Type::String);
EXPECT_EQ(json.as_string().is_null(), false);
EXPECT_EQ(json.as_string().length(), size_t { 1 });
EXPECT_EQ(json.as_string() == "A", true);
}
/*
FIXME: Parse JSON from a Utf8View
TEST_CASE(json_utf8_multibyte)
{
auto json_or_error = JsonValue::from_string("\"š\"");
EXPECT_EQ(json_or_error.is_error(), false);
auto& json = json_or_error.value();
EXPECT_EQ(json.type(), JsonValue::Type::String);
EXPECT_EQ(json.as_string().is_null(), false);
EXPECT_EQ(json.as_string().length(), size_t { 2 });
EXPECT_EQ(json.as_string() == "š", true);
EXPECT_EQ(json.as_string() == "\xc5\xa1", true);
}
*/
TEST_CASE(json_64_bit_value)
{
auto big_value = 0x12345678aabbccddull;
JsonValue big_json_value(big_value);
JsonValue big_json_value_copy = big_json_value;
EXPECT_EQ(big_json_value.as_u64(), big_json_value_copy.as_u64());
}
TEST_CASE(json_duplicate_keys)
{
JsonObject json;
json.set("test", "foo");
json.set("test", "bar");
json.set("test", "baz");
EXPECT_EQ(json.to_string(), "{\"test\":\"baz\"}");
}
TEST_CASE(json_u64_roundtrip)
{
auto big_value = 0xffffffffffffffffull;
auto json = JsonValue(big_value).to_string();
auto value = JsonValue::from_string(json);
EXPECT_EQ_FORCE(value.is_error(), false);
EXPECT_EQ(value.value().as_u64(), big_value);
}
TEST_CASE(json_parse_empty_string)
{
auto value = JsonValue::from_string("");
EXPECT_EQ(value.value().is_null(), true);
}