Files
ParadoxSaveParser/ParadoxSaveParser.Lib.Tests/SearchExpressionTests.cs
T
2026-09-15 00:14:26 +02:00

106 lines
4.0 KiB
C#

using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.Encodings.Web;
using System.Text.Json;
using System.Text.Json.Serialization;
using DTLib.Extensions;
namespace ParadoxSaveParser.Lib.Tests;
[TestFixture]
[TestOf(typeof(ISearchExpression))]
public class SearchExpressionTests
{
[SetUp]
public void Setup()
{
_smallSaveData = "EU4txt a={ b={ c=0 d=1 e=2 } f=3 }".ToBytes();
}
private byte[] _smallSaveData;
private static readonly JsonSerializerOptions _smallSaveSerializerOptions = new()
{
WriteIndented = false,
Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
MaxDepth = 1024,
DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull,
};
internal static string JsonToPdx(string json)
=> json.Substring(1, json.Length - 2)
.Replace(",", " ").Replace("{", "{ ").Replace("}", " }")
.Replace("\"", "").Replace("[", "").Replace("]", "").Replace(":", "=");
[TestCase("a", "a={ b={ c=0 d=1 e=2 } f=3 }")]
[TestCase("a.*", "a={ b={ c=0 d=1 e=2 } f=3 }")]
[TestCase("a.b", "a={ b={ c=0 d=1 e=2 } }")]
[TestCase("a.[0].c", "a={ b={ c=0 } }")]
[TestCase("a.[1]", "a={ f=3 }")]
[TestCase("a.b.(c|d)", "a={ b={ c=0 d=1 } }")]
[TestCase("a.(b.e|f)", "a={ b={ e=2 } f=3 }")]
public void TestSearchOnSmallData(string input, string expectedOutput)
{
Assert.That(Search(_smallSaveData, input), Is.EqualTo(expectedOutput));
}
/// <summary>
/// The same queries, but with a read buffer so small that tokens, quoted strings and
/// skipped blocks are split across refills.
/// </summary>
[TestCase("a", "a={ b={ c=0 d=1 e=2 } f=3 }")]
[TestCase("a.b", "a={ b={ c=0 d=1 e=2 } }")]
[TestCase("a.[1]", "a={ f=3 }")]
[TestCase("a.(b.e|f)", "a={ b={ e=2 } f=3 }")]
public void TestSearchAcrossBufferRefills(string input, string expectedOutput)
{
foreach (int bufferSize in new[] { 16, 17, 23, 64 })
Assert.That(Search(_smallSaveData, input, bufferSize), Is.EqualTo(expectedOutput),
$"buffer size {bufferSize}");
}
[Test]
public void BracesInsideQuotedStringAreText()
{
byte[] data = "EU4txt a={ name=\"x{y}z\" b=1 }".ToBytes();
using var saveStream = new MemoryStream(data, false);
var parser = new SaveParserEU4(saveStream, SearchExpressionCompiler.Compile("a"));
var a = (Dictionary<string, object>)parser.Parse()["a"];
Assert.Multiple(() =>
{
Assert.That(a["name"], Is.EqualTo("x{y}z"));
Assert.That(a["b"], Is.EqualTo(1L));
});
}
[Test]
public void SkippedBlockIgnoresBracesInsideQuotedStrings()
{
byte[] data = "EU4txt a={ s=\"{{{\" } b=2".ToBytes();
using var saveStream = new MemoryStream(data, false);
var parser = new SaveParserEU4(saveStream, SearchExpressionCompiler.Compile("b"));
Assert.That(parser.Parse()["b"], Is.EqualTo(2L));
}
[Test]
public void EncodingIsConfigurable()
{
byte[] data = Encoding.UTF8.GetBytes("EU4txt a={ name=\"Ä\" }");
using var saveStream = new MemoryStream(data, false);
var parser = new SaveParserEU4(saveStream, SearchExpressionCompiler.Compile("a"), Encoding.UTF8);
var a = (Dictionary<string, object>)parser.Parse()["a"];
Assert.That(a["name"], Is.EqualTo("Ä"));
}
private static string Search(byte[] saveData, string query, int bufferSize = 64 * 1024)
{
using var saveStream = new MemoryStream(saveData, false);
var se = SearchExpressionCompiler.Compile(query);
var parser = new SaveParserEU4(saveStream, se, bufferSize: bufferSize);
var rootNode = parser.Parse();
string json = JsonSerializer.Serialize(rootNode, _smallSaveSerializerOptions);
return JsonToPdx(json);
}
}