feat(configmanager): add BackupService with tests

2026-01-19 17:40:22 -05:00
parent 54620ccb2e
commit 0e441898a6
3 changed files with 182 additions and 0 deletions
@@ -0,0 +1,66 @@
+using JdeScoping.ConfigManager.Services;
+
+namespace JdeScoping.ConfigManager.Tests.Services;
+
+public class BackupServiceTests
+{
+    private readonly IFileSystem _fileSystem;
+    private readonly BackupService _sut;
+
+    public BackupServiceTests()
+    {
+        _fileSystem = Substitute.For<IFileSystem>();
+        _sut = new BackupService(_fileSystem);
+    }
+
+    [Fact]
+    public async Task CreateBackupAsync_CreatesTimestampedBackup()
+    {
+        // Arrange
+        var sourcePath = "/config/appsettings.json";
+        _fileSystem.FileExists(sourcePath).Returns(true);
+        _fileSystem.GetDirectoryName(sourcePath).Returns("/config");
+        _fileSystem.GetFileNameWithoutExtension(sourcePath).Returns("appsettings");
+        _fileSystem.Combine(Arg.Any<string[]>()).Returns(callInfo =>
+        {
+            var paths = callInfo.Arg<string[]>();
+            return string.Join("/", paths);
+        });
+
+        // Act
+        var backupPath = await _sut.CreateBackupAsync(sourcePath);
+
+        // Assert
+        backupPath.ShouldStartWith("/config/appsettings.");
+        backupPath.ShouldEndWith(".bak");
+        await _fileSystem.Received(1).CopyFileAsync(sourcePath, backupPath, Arg.Any<CancellationToken>());
+    }
+
+    [Fact]
+    public async Task CleanupOldBackupsAsync_KeepsOnlySpecifiedCount()
+    {
+        // Arrange
+        var filePath = "/config/appsettings.json";
+        _fileSystem.GetDirectoryName(filePath).Returns("/config");
+        _fileSystem.GetFileNameWithoutExtension(filePath).Returns("appsettings");
+
+        var backups = Enumerable.Range(1, 15)
+            .Select(i => $"/config/appsettings.2026-01-{i:D2}_120000.bak")
+            .ToArray();
+        _fileSystem.GetFilesAsync("/config", "appsettings.*.bak", Arg.Any<CancellationToken>())
+            .Returns(Task.FromResult(backups));
+
+        // Mock GetFileNameWithoutExtension for each backup file
+        foreach (var backup in backups)
+        {
+            var fileName = backup.Split('/').Last().Replace(".bak", "");
+            _fileSystem.GetFileNameWithoutExtension(backup).Returns(fileName);
+        }
+
+        // Act
+        await _sut.CleanupOldBackupsAsync(filePath, keepCount: 10);
+
+        // Assert - should delete 5 oldest backups
+        await _fileSystem.Received(5).DeleteFileAsync(Arg.Any<string>(), Arg.Any<CancellationToken>());
+    }
+}