public void GenerateUniqueFileName_SupplyFileAndGeneratorAndPosition_ReturnsFileNameWithExtensionWithProperlyPositionedUniqueString(UniqueCharsPosition position, string expectedResult)
{
// arrange
AppFile file = new AppFile();
file.FileNameFull = "TestFileName.extension";
file.FileNameWithoutExtension = "TestFileName";
file.FileExtension = ".extension";
Mock<IUniqueCharsGenerator> generatorMock = new Mock<IUniqueCharsGenerator>();
generatorMock.Setup(s => s.Generate()).Returns("UniqueCharsSequence");
FileHelper fileHelper = new FileHelper();
// act
string result = fileHelper.GenerateUniqueFileName(file, generatorMock.Object, position);
//assert
Assert.AreEqual(expectedResult, result);
}
public void GenerateUniqueFileName_GeneratorArgumentIsNotSupplied_ThrowsGeneratorArgumentNullException()
{
// arrange
FileHelper fileHelper = new FileHelper();
AppFile file = new AppFile();
TestDelegate testDelegate = () => fileHelper.GenerateUniqueFileName(file, null, It.IsAny<UniqueCharsPosition>());
// act, assert
Assert.That(testDelegate, Throws.Exception.TypeOf<ArgumentNullException>().With.Property("ParamName").EqualTo("generator"));
}
