feat: migrate legacy playout workflow and scenes

This commit is contained in:
2026-07-10 23:58:45 +09:00
parent 491a740505
commit 8dae7b8e0d
128 changed files with 39177 additions and 205 deletions

View File

@@ -18,12 +18,28 @@ internal sealed class ConnectionPlan
public int? ObservedCommandTimeoutSeconds { get; set; }
public string? ObservedCommandText { get; set; }
public IReadOnlyList<ObservedDbParameter> ObservedParameters { get; set; } = [];
public CancellationToken ObservedExecuteCancellationToken { get; set; }
public int SynchronousOpenCount { get; set; }
public int SynchronousExecuteCount { get; set; }
public static ConnectionPlan Success(DataTable data) => new()
{
ExecuteReaderAsync = _ => Task.FromResult<DbDataReader>(data.CreateDataReader())
};
}
internal sealed record ObservedDbParameter(
string Name,
object? Value,
DbType? ExplicitDbType,
ParameterDirection Direction);
internal sealed class FakeConnectionFactory : IDatabaseConnectionFactory
{
private readonly Queue<ConnectionPlan> _plans;
@@ -85,7 +101,11 @@ internal sealed class FakeDbConnection(ConnectionPlan plan) : DbConnection
public override void Close() => _state = ConnectionState.Closed;
public override void Open() => OpenAsync(CancellationToken.None).GetAwaiter().GetResult();
public override void Open()
{
plan.SynchronousOpenCount++;
throw new InvalidOperationException("The synchronous open path must not be used.");
}
public override async Task OpenAsync(CancellationToken cancellationToken)
{
@@ -146,20 +166,50 @@ internal sealed class FakeDbCommand(DbConnection connection, ConnectionPlan plan
protected override DbParameter CreateDbParameter() => new FakeDbParameter();
protected override DbDataReader ExecuteDbDataReader(CommandBehavior behavior) =>
ExecuteDbDataReaderAsync(behavior, CancellationToken.None).GetAwaiter().GetResult();
throw RecordSynchronousExecution();
protected override Task<DbDataReader> ExecuteDbDataReaderAsync(
CommandBehavior behavior,
CancellationToken cancellationToken)
{
plan.ObservedCommandTimeoutSeconds = CommandTimeout;
plan.ObservedCommandText = CommandText;
plan.ObservedParameters = _parameters
.Cast<DbParameter>()
.Select(parameter => new ObservedDbParameter(
parameter.ParameterName,
parameter.Value,
parameter is FakeDbParameter fakeParameter && fakeParameter.WasDbTypeSet
? parameter.DbType
: null,
parameter.Direction))
.ToArray();
plan.ObservedExecuteCancellationToken = cancellationToken;
return plan.ExecuteReaderAsync(cancellationToken);
}
private Exception RecordSynchronousExecution()
{
plan.SynchronousExecuteCount++;
return new InvalidOperationException("The synchronous command path must not be used.");
}
}
internal sealed class FakeDbParameter : DbParameter
{
public override DbType DbType { get; set; }
private DbType _dbType;
public bool WasDbTypeSet { get; private set; }
public override DbType DbType
{
get => _dbType;
set
{
_dbType = value;
WasDbTypeSet = true;
}
}
public override ParameterDirection Direction { get; set; }
@@ -179,6 +229,8 @@ internal sealed class FakeDbParameter : DbParameter
public override void ResetDbType()
{
_dbType = default;
WasDbTypeSet = false;
}
}

View File

@@ -7,6 +7,33 @@ namespace MBN_STOCK_WEBVIEW.Infrastructure.Tests;
public sealed class ProviderDatabaseConnectionFactoryTests
{
[Fact]
public void OracleCommand_AcceptsLogicalNameForColonPlaceholder()
{
using var command = new OracleCommand("SELECT :code FROM DUAL");
var parameter = command.CreateParameter();
parameter.ParameterName = "code";
parameter.Value = 7;
command.Parameters.Add(parameter);
Assert.Equal(0, command.Parameters.IndexOf("code"));
}
[Fact]
public void MariaDbCommand_NormalizesLogicalNameForAtPlaceholder()
{
using var command = new MySqlCommand("SELECT @code");
var parameter = command.CreateParameter();
parameter.ParameterName = "code";
parameter.Value = 7;
command.Parameters.Add(parameter);
Assert.Equal(0, command.Parameters.IndexOf("code"));
Assert.Equal(0, command.Parameters.IndexOf("@code"));
}
[Fact]
public void CreateOracleConnection_UsesSidDescriptor()
{

View File

@@ -6,6 +6,228 @@ namespace MBN_STOCK_WEBVIEW.Infrastructure.Tests;
public sealed class ResilientDataQueryExecutorTests
{
[Theory]
[InlineData(DataSourceKind.Oracle, ':')]
[InlineData(DataSourceKind.MariaDb, '@')]
public async Task ExecuteAsync_ParameterizedSpec_BindsValuesTypesAndDbNullWithoutSyncCalls(
DataSourceKind source,
char marker)
{
var data = new DataTable();
data.Columns.Add("VALUE", typeof(int));
data.Rows.Add(1);
var plan = ConnectionPlan.Success(data);
var factory = new FakeConnectionFactory(plan);
var executor = CreateExecutor(factory);
var query = new DataQuerySpec(
$"SELECT value FROM sample WHERE code = {marker}code AND optional_value = {marker}optional_value",
[
new DataQueryParameter("optional_value", null),
new DataQueryParameter("code", "005930", DbType.String)
]);
var result = await executor.ExecuteAsync(source, "Parameterized", query);
Assert.Single(result.Rows.Cast<DataRow>());
Assert.Equal(query.Sql, plan.ObservedCommandText);
Assert.Collection(
plan.ObservedParameters,
parameter =>
{
Assert.Equal("code", parameter.Name);
Assert.Equal("005930", parameter.Value);
Assert.Equal(DbType.String, parameter.ExplicitDbType);
Assert.Equal(ParameterDirection.Input, parameter.Direction);
},
parameter =>
{
Assert.Equal("optional_value", parameter.Name);
Assert.Equal(DBNull.Value, parameter.Value);
Assert.Null(parameter.ExplicitDbType);
Assert.Equal(ParameterDirection.Input, parameter.Direction);
});
Assert.True(plan.ObservedExecuteCancellationToken.CanBeCanceled);
Assert.Equal(0, plan.SynchronousOpenCount);
Assert.Equal(0, plan.SynchronousExecuteCount);
Assert.True(plan.Disposed);
}
[Theory]
[InlineData(DataSourceKind.Oracle, ':')]
[InlineData(DataSourceKind.MariaDb, '@')]
public async Task ExecuteAsync_ParameterizedSpec_PropagatesCancellationWithoutRetryOrSyncFallback(
DataSourceKind source,
char marker)
{
var commandStarted = new TaskCompletionSource(
TaskCreationOptions.RunContinuationsAsynchronously);
var plan = new ConnectionPlan
{
ExecuteReaderAsync = async token =>
{
commandStarted.SetResult();
await Task.Delay(Timeout.InfiniteTimeSpan, token);
throw new InvalidOperationException("Unreachable.");
}
};
var factory = new FakeConnectionFactory(plan);
var executor = CreateExecutor(factory, transient: true, retryCount: 2);
var query = new DataQuerySpec(
$"SELECT value FROM sample WHERE code = {marker}code",
[new DataQueryParameter("code", 7, DbType.Int32)]);
using var cancellation = new CancellationTokenSource();
var operation = executor.ExecuteAsync(source, "Canceled", query, cancellation.Token);
await commandStarted.Task;
await cancellation.CancelAsync();
await Assert.ThrowsAnyAsync<OperationCanceledException>(() => operation);
Assert.Equal(1, factory.CreateCount);
Assert.Equal(0, plan.SynchronousOpenCount);
Assert.Equal(0, plan.SynchronousExecuteCount);
Assert.True(plan.Disposed);
}
[Theory]
[InlineData(DataSourceKind.Oracle, ':')]
[InlineData(DataSourceKind.MariaDb, '@')]
public async Task ExecuteAsync_ParameterizedCancellation_DoesNotExposeProviderMessage(
DataSourceKind source,
char marker)
{
const string sensitiveName = "cancel_secret_name";
const string sensitiveValue = "cancel-value-sensitive-sentinel";
var commandStarted = new TaskCompletionSource(
TaskCreationOptions.RunContinuationsAsynchronously);
var plan = new ConnectionPlan
{
ExecuteReaderAsync = async token =>
{
commandStarted.SetResult();
try
{
await Task.Delay(Timeout.InfiniteTimeSpan, token);
}
catch (OperationCanceledException)
{
throw new OperationCanceledException(
$"{sensitiveName}|{sensitiveValue}",
token);
}
throw new InvalidOperationException("Unreachable.");
}
};
var factory = new FakeConnectionFactory(plan);
var executor = CreateExecutor(factory, transient: true, retryCount: 2);
var query = new DataQuerySpec(
$"SELECT value FROM sample WHERE code = {marker}{sensitiveName}",
[new DataQueryParameter(sensitiveName, sensitiveValue)]);
using var cancellation = new CancellationTokenSource();
var operation = executor.ExecuteAsync(source, "Canceled", query, cancellation.Token);
await commandStarted.Task;
await cancellation.CancelAsync();
var exception = await Assert.ThrowsAsync<OperationCanceledException>(() => operation);
Assert.DoesNotContain(sensitiveName, exception.Message, StringComparison.Ordinal);
Assert.DoesNotContain(sensitiveValue, exception.Message, StringComparison.Ordinal);
Assert.Equal(cancellation.Token, exception.CancellationToken);
Assert.Null(exception.InnerException);
Assert.Equal(1, factory.CreateCount);
Assert.Equal(0, plan.SynchronousOpenCount);
Assert.Equal(0, plan.SynchronousExecuteCount);
Assert.True(plan.Disposed);
}
[Theory]
[InlineData(DataSourceKind.Oracle, ':')]
[InlineData(DataSourceKind.MariaDb, '@')]
public async Task ExecuteAsync_ParameterizedProviderFailure_DoesNotExposeNameOrValue(
DataSourceKind source,
char marker)
{
const string sensitiveName = "account_secret_name";
const string sensitiveValue = "value-sensitive-sentinel";
var plan = new ConnectionPlan
{
ExecuteReaderAsync = _ => Task.FromException<System.Data.Common.DbDataReader>(
new TestDatabaseException($"{sensitiveName}|{sensitiveValue}"))
};
var factory = new FakeConnectionFactory(plan);
var executor = CreateExecutor(factory);
var query = new DataQuerySpec(
$"SELECT value FROM sample WHERE account = {marker}{sensitiveName}",
[new DataQueryParameter(sensitiveName, sensitiveValue, DbType.String)]);
var exception = await Assert.ThrowsAsync<DatabaseQueryException>(
() => executor.ExecuteAsync(source, "Sensitive", query));
Assert.Null(exception.InnerException);
Assert.DoesNotContain(sensitiveName, exception.Message, StringComparison.Ordinal);
Assert.DoesNotContain(sensitiveValue, exception.Message, StringComparison.Ordinal);
Assert.Equal(1, factory.CreateCount);
Assert.True(plan.Disposed);
}
[Theory]
[InlineData(DataSourceKind.Oracle, ':')]
[InlineData(DataSourceKind.MariaDb, '@')]
public async Task ExecuteAsync_ParameterizedTransientReadFailure_RecreatesBoundCommandOnRetry(
DataSourceKind source,
char marker)
{
var first = new ConnectionPlan
{
ExecuteReaderAsync = _ => Task.FromException<System.Data.Common.DbDataReader>(
new TestDatabaseException("temporary"))
};
var data = new DataTable();
data.Columns.Add("VALUE", typeof(int));
data.Rows.Add(42);
var second = ConnectionPlan.Success(data);
var factory = new FakeConnectionFactory(first, second);
var executor = CreateExecutor(factory, transient: true, retryCount: 1);
var query = new DataQuerySpec(
$"SELECT value FROM sample WHERE code = {marker}code",
[new DataQueryParameter("code", 42, DbType.Int32)]);
var result = await executor.ExecuteAsync(source, "Retry", query);
Assert.Equal(42, Assert.Single(result.Rows.Cast<DataRow>())["VALUE"]);
Assert.Equal(2, factory.CreateCount);
Assert.All(
new[] { first, second },
plan =>
{
var parameter = Assert.Single(plan.ObservedParameters);
Assert.Equal("code", parameter.Name);
Assert.Equal(42, parameter.Value);
Assert.Equal(DbType.Int32, parameter.ExplicitDbType);
Assert.Equal(0, plan.SynchronousOpenCount);
Assert.Equal(0, plan.SynchronousExecuteCount);
Assert.True(plan.Disposed);
});
}
[Fact]
public async Task ExecuteAsync_ParameterizedSpec_RejectsProviderMarkerBeforeOpeningConnection()
{
var plan = ConnectionPlan.Success(new DataTable());
var factory = new FakeConnectionFactory(plan);
var executor = CreateExecutor(factory);
var query = new DataQuerySpec(
"SELECT value FROM sample WHERE code = :code",
[new DataQueryParameter("code", 7)]);
var exception = await Assert.ThrowsAsync<ArgumentException>(
() => executor.ExecuteAsync(DataSourceKind.MariaDb, "Rejected", query));
Assert.Equal(0, factory.CreateCount);
Assert.DoesNotContain("code", exception.Message, StringComparison.OrdinalIgnoreCase);
Assert.DoesNotContain("7", exception.Message, StringComparison.Ordinal);
}
[Fact]
public async Task ExecuteAsync_Success_PreservesSchemaRowsAndDbNull()
{
@@ -199,6 +421,30 @@ public sealed class ResilientDataQueryExecutorTests
Assert.True(plan.Disposed);
}
[Theory]
[InlineData("SELECT value INTO OUTFILE '/tmp/sample' FROM sample")]
[InlineData("SELECT 1; REPLACE INTO sample VALUES (1)")]
[InlineData("SELECT 1; SET @value = 1")]
[InlineData("WITH value AS (SELECT 1) DELETE FROM sample")]
public async Task ExecuteAsync_AmbiguousOrStateChangingLegacyRead_DoesNotRetry(
string query)
{
var plan = new ConnectionPlan
{
ExecuteReaderAsync = _ => Task.FromException<System.Data.Common.DbDataReader>(
new TestDatabaseException("temporary"))
};
var factory = new FakeConnectionFactory(plan);
var executor = CreateExecutor(factory, transient: true, retryCount: 2);
var exception = await Assert.ThrowsAsync<DatabaseQueryException>(
() => executor.ExecuteAsync(DataSourceKind.MariaDb, "Mutation", query));
Assert.True(exception.IsTransient);
Assert.Equal(1, factory.CreateCount);
Assert.True(plan.Disposed);
}
private static ResilientDataQueryExecutor CreateExecutor(
FakeConnectionFactory factory,
bool transient = false,

View File

@@ -0,0 +1,330 @@
using System.Text;
using MBN_STOCK_WEBVIEW.Core.Playout.Scenes;
using MBN_STOCK_WEBVIEW.Infrastructure;
namespace MBN_STOCK_WEBVIEW.Infrastructure.Tests;
public sealed class S5025TrustedManualFileDataSourceTests
{
private static readonly Encoding Cp949 = CreateCp949Encoding();
[Theory]
[InlineData(S5025ManualAudience.Individual, "개인.dat")]
[InlineData(S5025ManualAudience.Foreign, "외국인.dat")]
[InlineData(S5025ManualAudience.Institution, "기관.dat")]
public async Task ReadAsync_maps_closed_audience_to_fixed_cp949_file(
S5025ManualAudience audience,
string expectedFileName)
{
using var directory = new TemporaryDirectory();
WriteValidFile(Path.Combine(directory.Path, expectedFileName));
var source = new S5025TrustedManualFileDataSource(directory.Path);
var rows = await source.ReadAsync(audience);
Assert.Equal(5, rows.Count);
Assert.Equal("삼성전자", rows[0].LeftName);
Assert.Equal("1,234", rows[0].LeftAmount);
Assert.Equal("SK하이닉스", rows[0].RightName);
Assert.Equal("-987", rows[0].RightAmount);
}
[Fact]
public async Task CreateFromEnvironment_uses_only_documented_directory_setting()
{
using var directory = new TemporaryDirectory();
WriteValidFile(Path.Combine(directory.Path, "개인.dat"));
var requestedNames = new List<string>();
var source = S5025TrustedManualFileDataSource.CreateFromEnvironment(name =>
{
requestedNames.Add(name);
return directory.Path;
});
var rows = await source.ReadAsync(S5025ManualAudience.Individual);
Assert.Equal(
S5025TrustedManualFileDataSource.DirectoryEnvironmentVariable,
Assert.Single(requestedNames));
Assert.Equal(5, rows.Count);
}
[Theory]
[InlineData(null)]
[InlineData("")]
[InlineData("relative-data")]
public void Constructor_rejects_missing_or_non_absolute_directory(string? path)
{
Assert.Throws<S5025TrustedManualDataException>(() =>
new S5025TrustedManualFileDataSource(path!));
}
[Fact]
public void Constructor_rejects_nonexistent_absolute_directory()
{
var missing = Path.Combine(
Path.GetTempPath(),
Guid.NewGuid().ToString("N"),
"missing");
Assert.Throws<S5025TrustedManualDataException>(() =>
new S5025TrustedManualFileDataSource(missing));
}
[Theory]
[InlineData(S5025ManualAudience.Individual)]
[InlineData(S5025ManualAudience.Foreign)]
[InlineData(S5025ManualAudience.Institution)]
public async Task ReadAsync_does_not_fall_back_when_fixed_file_is_missing(
S5025ManualAudience audience)
{
using var directory = new TemporaryDirectory();
var source = new S5025TrustedManualFileDataSource(directory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
source.ReadAsync(audience));
}
[Fact]
public async Task ReadAsync_rejects_unknown_audience_before_any_file_lookup()
{
using var directory = new TemporaryDirectory();
var source = new S5025TrustedManualFileDataSource(directory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
source.ReadAsync((S5025ManualAudience)99));
}
[Theory]
[InlineData(
"L1^1^R1^2\r\nL2^1^R2^2\r\nL3^1^R3^2\r\nL4^1^R4^2",
"four rows")]
[InlineData(
"L1^1^R1^2\r\nL2^1^R2^2\r\nL3^1^R3^2\r\nL4^1^R4^2\r\nL5^1^R5^2\r\nL6^1^R6^2",
"six rows")]
[InlineData(
"L1^1^R1\r\nL2^1^R2^2\r\nL3^1^R3^2\r\nL4^1^R4^2\r\nL5^1^R5^2",
"three columns")]
[InlineData(
"L1^1^R1^2^EXTRA\r\nL2^1^R2^2\r\nL3^1^R3^2\r\nL4^1^R4^2\r\nL5^1^R5^2",
"five columns")]
public async Task ReadAsync_requires_exactly_five_rows_and_four_columns(
string content,
string _)
{
using var directory = new TemporaryDirectory();
await File.WriteAllBytesAsync(
Path.Combine(directory.Path, "개인.dat"),
Cp949.GetBytes(content));
var source = new S5025TrustedManualFileDataSource(directory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
source.ReadAsync(S5025ManualAudience.Individual));
}
[Fact]
public async Task ReadAsync_accepts_one_trailing_line_terminator()
{
using var directory = new TemporaryDirectory();
WriteValidFile(Path.Combine(directory.Path, "개인.dat"), trailingNewLine: true);
var source = new S5025TrustedManualFileDataSource(directory.Path);
var rows = await source.ReadAsync(S5025ManualAudience.Individual);
Assert.Equal(5, rows.Count);
}
[Fact]
public async Task ReadAsync_accepts_the_original_single_empty_terminal_record()
{
using var directory = new TemporaryDirectory();
var content = ValidContent() + "\r\n\r\n";
await File.WriteAllBytesAsync(
Path.Combine(directory.Path, "개인.dat"),
Cp949.GetBytes(content));
var source = new S5025TrustedManualFileDataSource(directory.Path);
var rows = await source.ReadAsync(S5025ManualAudience.Individual);
Assert.Equal(5, rows.Count);
}
[Fact]
public async Task ReadAsync_rejects_multiple_empty_terminal_records()
{
using var directory = new TemporaryDirectory();
var content = ValidContent() + "\r\n\r\n\r\n";
await File.WriteAllBytesAsync(
Path.Combine(directory.Path, "개인.dat"),
Cp949.GetBytes(content));
var source = new S5025TrustedManualFileDataSource(directory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
source.ReadAsync(S5025ManualAudience.Individual));
}
[Fact]
public async Task ReadAsync_rejects_invalid_cp949_and_unicode_bom_files()
{
using var invalidDirectory = new TemporaryDirectory();
await File.WriteAllBytesAsync(
Path.Combine(invalidDirectory.Path, "개인.dat"),
[0x81]);
var invalidSource = new S5025TrustedManualFileDataSource(invalidDirectory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
invalidSource.ReadAsync(S5025ManualAudience.Individual));
using var bomDirectory = new TemporaryDirectory();
var content = ValidContent();
await File.WriteAllBytesAsync(
Path.Combine(bomDirectory.Path, "개인.dat"),
Encoding.UTF8.GetPreamble().Concat(Encoding.UTF8.GetBytes(content)).ToArray());
var bomSource = new S5025TrustedManualFileDataSource(bomDirectory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
bomSource.ReadAsync(S5025ManualAudience.Individual));
}
[Fact]
public async Task ReadAsync_rejects_oversized_file_before_decoding()
{
using var directory = new TemporaryDirectory();
await File.WriteAllBytesAsync(
Path.Combine(directory.Path, "개인.dat"),
new byte[S5025TrustedManualFileDataSource.MaximumFileSizeBytes + 1]);
var source = new S5025TrustedManualFileDataSource(directory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
source.ReadAsync(S5025ManualAudience.Individual));
}
[Fact]
public async Task ReadAsync_rejects_reparse_file_in_trusted_directory()
{
using var directory = new TemporaryDirectory();
using var outside = new TemporaryDirectory();
var target = Path.Combine(outside.Path, "outside.dat");
WriteValidFile(target);
var link = Path.Combine(directory.Path, "개인.dat");
if (!TryCreateFileSymbolicLink(link, target))
{
return;
}
var source = new S5025TrustedManualFileDataSource(directory.Path);
await Assert.ThrowsAsync<S5025TrustedManualDataException>(() =>
source.ReadAsync(S5025ManualAudience.Individual));
}
[Fact]
public void Constructor_rejects_reparse_directory_or_ancestor()
{
using var parent = new TemporaryDirectory();
using var outside = new TemporaryDirectory();
var link = Path.Combine(parent.Path, "linked-data");
if (!TryCreateDirectorySymbolicLink(link, outside.Path))
{
return;
}
Assert.Throws<S5025TrustedManualDataException>(() =>
new S5025TrustedManualFileDataSource(link));
}
[Fact]
public async Task ReadAsync_honors_pre_cancelled_token()
{
using var directory = new TemporaryDirectory();
WriteValidFile(Path.Combine(directory.Path, "개인.dat"));
var source = new S5025TrustedManualFileDataSource(directory.Path);
using var cancellation = new CancellationTokenSource();
cancellation.Cancel();
await Assert.ThrowsAnyAsync<OperationCanceledException>(() =>
source.ReadAsync(S5025ManualAudience.Individual, cancellation.Token));
}
private static void WriteValidFile(string path, bool trailingNewLine = false)
{
var content = ValidContent() + (trailingNewLine ? "\r\n" : string.Empty);
File.WriteAllBytes(path, Cp949.GetBytes(content));
}
private static string ValidContent() => string.Join(
"\r\n",
"삼성전자^1,234^SK하이닉스^-987",
"현대차^2^기아^-2",
"NAVER^3^카카오^-3",
"LG화학^4^셀트리온^-4",
"POSCO홀딩스^5^한화에어로스페이스^-5");
private static Encoding CreateCp949Encoding()
{
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
return Encoding.GetEncoding(
949,
EncoderFallback.ExceptionFallback,
DecoderFallback.ExceptionFallback);
}
private static bool TryCreateFileSymbolicLink(string link, string target)
{
try
{
File.CreateSymbolicLink(link, target);
return true;
}
catch (Exception exception) when (exception is
UnauthorizedAccessException or
IOException or
PlatformNotSupportedException)
{
return false;
}
}
private static bool TryCreateDirectorySymbolicLink(string link, string target)
{
try
{
Directory.CreateSymbolicLink(link, target);
return true;
}
catch (Exception exception) when (exception is
UnauthorizedAccessException or
IOException or
PlatformNotSupportedException)
{
return false;
}
}
private sealed class TemporaryDirectory : IDisposable
{
public TemporaryDirectory()
{
Path = System.IO.Path.Combine(
System.IO.Path.GetTempPath(),
Guid.NewGuid().ToString("N"));
Directory.CreateDirectory(Path);
}
public string Path { get; }
public void Dispose()
{
try
{
Directory.Delete(Path, recursive: true);
}
catch (IOException)
{
// A failed cleanup must not hide the behavior under test.
}
catch (UnauthorizedAccessException)
{
// A failed cleanup must not hide the behavior under test.
}
}
}
}