public void GetIncidentById()
{
// Arrange.
var testData = GetTestData();
var testEntity = testData.FirstOrDefault(e => e.Id == 1);
var mockDbSet = new Mock <DbSet <Incident> >();
mockDbSet
.As <IQueryable <Incident> >()
.Setup(m => m.GetEnumerator())
.Returns(testData.AsQueryable().GetEnumerator);
mockDbSet
.Setup(m => m.Find(It.IsAny <object[]>()))
.Returns <object[]>(ids => testData.FirstOrDefault(d => d.Id == (int)ids[0]));
var mockDbContext = new Mock <BankDbContext>();
mockDbContext
.Setup(m => m.Incidents)
.Returns(mockDbSet.Object);
var incidentsController = new IncidentsController(mockDbContext.Object);
// Act.
var actionResult = incidentsController.GetIncident(testEntity.Id) as OkNegotiatedContentResult <Incident>;
// Assert.
Assert.IsNotNull(actionResult);
Assert.IsNotNull(actionResult.Content);
Assert.IsInstanceOfType(actionResult, typeof(OkNegotiatedContentResult <Incident>));
Assert.AreEqual(testEntity, actionResult.Content);
}