public void WriteToFile_ThrowsForEmptyFilePath()
{
// Assert
Assert.Throws <ArgumentException>(() => PackageSpecWriter.WriteToFile(EmptyPackageSpec, filePath: null));
}
public void WriteToFile_ThrowsForNullPackageSpec()
{
// Assert
Assert.Throws <ArgumentNullException>(() => PackageSpecWriter.WriteToFile(packageSpec: null, filePath: @"C:\a.json"));
}