public async Task TestRemoving()
{
string fileName = CommaDelimitedFileUnitTest.ComposeFileName();
try
{
IReadOnlyCollection<string> columnNames =
Enumerable.Range(0, CommaDelimitedFileUnitTest.CountColumns)
.Select(
(int item) =>
item.ToString(CultureInfo.InvariantCulture))
.ToArray();
IRow rowOne;
ITabularFileAdapter fileStore = null;
try
{
fileStore = new CommaDelimitedFileAdapter(fileName, columnNames);
Assert.IsTrue(File.Exists(fileName));
Dictionary<string, string> columnsWritten =
columnNames
.ToDictionary(
(string item) =>
item,
(string item) =>
Guid.NewGuid().ToString());
rowOne = await fileStore.InsertRow(columnsWritten);
Assert.IsNotNull(rowOne);
Assert.IsFalse(string.IsNullOrWhiteSpace(rowOne.Key));
IRow rowTwo = await fileStore.InsertRow(columnsWritten);
Assert.IsNotNull(rowTwo);
Assert.IsFalse(string.IsNullOrWhiteSpace(rowTwo.Key));
Assert.IsFalse(string.Equals(rowOne.Key, rowTwo.Key, StringComparison.OrdinalIgnoreCase));
await fileStore.RemoveRow(rowOne.Key);
}
finally
{
if (fileStore != null)
{
fileStore.Dispose();
fileStore = null;
}
}
IReadOnlyCollection<string> lines = File.ReadAllLines(fileName);
Assert.AreEqual(2, lines.LongCount());
Assert.IsFalse(
lines
.Any(
(string item) =>
item.StartsWith(rowOne.Key, StringComparison.OrdinalIgnoreCase)));
}
finally
{
if (File.Exists(fileName))
{
File.Delete(fileName);
}
}
}
