public void IsFilePathValid_Returns_False_If_NullOrWhiteSpace()
{
var validFilePathChecker = new ValidSaveFilePathChecker();
Assert.False(validFilePathChecker.IsFilePathValid(null));
Assert.False(validFilePathChecker.IsFilePathValid(string.Empty));
Assert.False(validFilePathChecker.IsFilePathValid(" "));
}
public void IsFilePathValid_Returns_True_If_Containing_Directory_Exists()
{
var appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
Assert.True(Directory.Exists(appDataPath));
var testPath = Path.Combine(appDataPath, "Test.csv");
var validFilePathChecker = new ValidSaveFilePathChecker();
Assert.True(validFilePathChecker.IsFilePathValid(testPath));
}
public void IsFilePathValid_Returns_False_If_Containing_Directory_Does_Not_Exist()
{
const string NonExistentDirectory = @"C:\ThisDirectoryAlmostCertainlyDoesNotExist";
Assert.False(Directory.Exists(NonExistentDirectory));
var testPath = Path.Combine(NonExistentDirectory, "Test.csv");
var validFilePathChecker = new ValidSaveFilePathChecker();
Assert.False(validFilePathChecker.IsFilePathValid(testPath));
}
public void IsFilePathValid_Returns_True_If_Predicate_Passes_And_Directory_Exists()
{
// This should always exist
var appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
Assert.True(Directory.Exists(appDataPath));
var testPath = Path.Combine(appDataPath, "Test.csv");
var validFilePathChecker = new ValidSaveFilePathChecker();
Assert.True(validFilePathChecker.IsFilePathValid(testPath, p => p.EndsWith(".csv", StringComparison.OrdinalIgnoreCase)));
}