public async Task Test_StorageHelper_FileCRUDTest()
{
var fileName = "TestFile.txt";
var fileName2 = "TestFile2.txt";
var fileContents = "this is a test";
var fileContents2 = "this is also a test";
var storageHelper = ApplicationDataStorageHelper.GetCurrent();
// Create a file
await storageHelper.CreateFileAsync(fileName, fileContents);
// Read a file
var readContents = await storageHelper.ReadFileAsync <string>(fileName);
Assert.AreEqual(fileContents, readContents);
// Update a file
await storageHelper.CreateFileAsync(fileName, fileContents2);
var readContents2 = await storageHelper.ReadFileAsync <string>(fileName);
Assert.AreEqual(fileContents2, readContents2);
// Rename a file
var itemRenamed = await storageHelper.TryRenameItemAsync(fileName, fileName2);
Assert.IsTrue(itemRenamed);
// Delete a file
var itemDeleted = await storageHelper.TryDeleteItemAsync(fileName2);
Assert.IsTrue(itemDeleted);
}
public static async void EnsureCacheLatest()
{
var settingsStorage = ApplicationDataStorageHelper.GetCurrent();
var onlineDocsSHA = await GetDocsSHA();
var cacheSHA = settingsStorage.Read <string>(_cacheSHAKey);
bool outdatedCache = onlineDocsSHA != null && cacheSHA != null && onlineDocsSHA != cacheSHA;
bool noCache = onlineDocsSHA != null && cacheSHA == null;
if (outdatedCache || noCache)
{
// Delete everything in the Cache Folder. Could be Pre 3.0.0 Cache data.
foreach (var item in await ApplicationData.Current.LocalCacheFolder.GetItemsAsync())
{
try
{
await item.DeleteAsync(StorageDeleteOption.Default);
}
catch
{
}
}
// Update Cache Version info.
settingsStorage.Save(_cacheSHAKey, onlineDocsSHA);
}
}
public void Test_SystemInformation_ConsistentInfoForStartupWithUpdate()
{
ApplicationData.Current.LocalSettings.Values.Clear();
// Simulate a first app startup
_ = (SystemInformation)Activator.CreateInstance(typeof(SystemInformation), nonPublic: true);
var settingsStorage = ApplicationDataStorageHelper.GetCurrent();
PackageVersion previousVersion = new() { Build = 42, Major = 1111, Minor = 2222, Revision = 12345 };
settingsStorage.Save("currentVersion", previousVersion.ToFormattedString());
var systemInformation = (SystemInformation)Activator.CreateInstance(typeof(SystemInformation), nonPublic: true);
var currentAppVersion = Package.Current.Id.Version;
Assert.IsFalse(systemInformation.IsFirstRun);
Assert.IsTrue(systemInformation.IsAppUpdated);
Assert.AreEqual(systemInformation.ApplicationVersion, currentAppVersion);
Assert.AreEqual(systemInformation.PreviousVersionInstalled, previousVersion);
Assert.AreEqual(systemInformation.FirstVersionInstalled, currentAppVersion);
}
}
public async Task Test_StorageHelper_SubFolderCRUDTest()
{
var folderName = "TestFolder1";
var subFolderName = "TestSubFolder";
var subFolderName2 = "TestSubFolder2";
var subFolderPath = $"{folderName}/{subFolderName}";
var subFolderPath2 = $"{folderName}/{subFolderName2}";
var fileName = "TestFile.txt";
var fileName2 = "TestFile2.txt";
var filePath = $"{subFolderPath}/{fileName}";
var filePath2 = $"{subFolderPath2}/{fileName2}";
var fileContents = "this is a test";
var storageHelper = ApplicationDataStorageHelper.GetCurrent();
// Attempt to delete the folder to clean up from any previously failed test runs.
await storageHelper.TryDeleteItemAsync(folderName);
// Create a subfolder
await storageHelper.CreateFolderAsync(subFolderPath);
// Create a file in the subfolder
await storageHelper.CreateFileAsync(filePath, fileContents);
// Read a file from the subfolder
var readContents = await storageHelper.ReadFileAsync <string>(filePath);
Assert.AreEqual(fileContents, readContents);
// List subfolder contents
var folderItems = await storageHelper.ReadFolderAsync(subFolderPath);
var folderItemsList = folderItems.ToList();
Assert.AreEqual(1, folderItemsList.Count());
Assert.AreEqual(fileName, folderItemsList[0].Name);
Assert.AreEqual(DirectoryItemType.File, folderItemsList[0].ItemType);
// Rename a file in a subfolder
var itemRenamed = await storageHelper.TryRenameItemAsync(filePath, fileName2);
Assert.IsTrue(itemRenamed);
// Rename a subfolder
var folderRenamed = await storageHelper.TryRenameItemAsync(subFolderPath, subFolderName2);
Assert.IsTrue(folderRenamed);
// Delete a file in a subfolder
var fileDeleted = await storageHelper.TryDeleteItemAsync(filePath2);
Assert.IsTrue(fileDeleted);
// Delete a subfolder
var subFolderDeleted = await storageHelper.TryDeleteItemAsync(subFolderPath2);
Assert.IsTrue(subFolderDeleted);
// Delete the folder to clean up.
var folderDeleted = await storageHelper.TryDeleteItemAsync(folderName);
Assert.IsTrue(folderDeleted);
}