/// <summary>
/// Loads the testdata for the given type.
/// The name of the type defines the name of the file containing the testdata.
/// If the type ends with Test or Tests the name of the tesdata file will be used without the ending
/// </summary>
/// <returns></returns>
public SnapshotCollection Read(SnapshotSetup snapshotId)
{
var file = snapshotId.GetFilePath();
if (!File.Exists(file))
{
return(null);
}
var snapshots = new SnapshotCollection();
Snapshot snapsot = null;
var reader = _dataReaders[ReaderType.data];
foreach (var line in ReadAllLines(file))
{
if (line.StartsWith("'Errors", System.StringComparison.InvariantCultureIgnoreCase) || line.StartsWith("'Raw", System.StringComparison.InvariantCultureIgnoreCase))
{
return(snapshots);
}
if (line.StartsWith("'"))
{
continue;
}
if (line == "---")
{
reader = _dataReaders[ReaderType.data];
continue;
}
if (line.StartsWith("---") && line.Length > 3)
{
var property = line.Substring(3);
if (Enum.TryParse <ReaderType>(property, out var key))
{
reader = _dataReaders[key];
if (reader.NewSnapshot(snapsot))
{
snapsot = null;
}
continue;
}
}
if (snapsot == null)
{
snapsot = new Snapshot();
snapshots.Add(snapsot);
}
reader.ReadLine(line, snapsot);
}
return(snapshots);
}
/// <summary>
/// write the snapshot to file
/// </summary>
/// <param name="snapshot"></param>
/// <param name="setup"></param>
public void Write(Snapshot snapshot, SnapshotSetup setup)
{
var collection = new SnapshotCollection();
collection.Add(snapshot);
var file = setup.GetFilePath();
if (File.Exists(file))
{
var reader = new SnapshotReader();
var tmp = reader.Read(setup);
foreach (var token in tmp)
{
if (!token.SnapshotContainsMetadata(snapshot.Metadata))
{
collection.Add(token);
}
}
}
Directory.CreateDirectory(Path.GetDirectoryName(setup.GetFilePath()));
using (var writer = new StreamWriter(setup.GetFilePath(), false))
{
foreach (var token in collection)
{
if (snapshot.HasMetadata())
{
writer.WriteLine("---metadata");
}
foreach (var info in token.Metadata)
{
writer.WriteLine($"{info.Key}: {info.Value}");
}
writer.WriteLine("---data");
foreach (var line in token)
{
writer.WriteLine(line.Value);
}
}
}
}
/// <summary>
/// Gets the full path with the filename
/// </summary>
/// <param name="setup"></param>
/// <returns></returns>
public static string GetFilePath(this SnapshotSetup setup)
{
return(Path.Combine(setup.Directory, "_Snapshots", $"{setup.ClassName}_{setup.MethodName}.snapshot"));
}
