ests. I changed TestDataBuilder as shown below:</p>

<pre lang="cs">
public class TestDataBuilder
{
    private readonly SimpleTaskAppDbContext _context;

    public TestDataBuilder(SimpleTaskAppDbContext context)
    {
        _context = context;
    }

    public void Build()
    {
<strong>        _context.Tasks.AddRange(
            new Task(&quot;Follow the white rabbit&quot;, &quot;Follow the white rabbit in order to know the reality.&quot;),
            new Task(&quot;Clean your room&quot;) { State = 