public void GetSingle_FilterReturnsNoEntities_ReturnsNull()
{
context.Entities.Add(new TestEntity {
Name = "Test Entity One"
});
context.SaveChanges();
var repo = new DataRepositoryUsingTestPersistenceContext <TestEntity>();
TestEntity resultEntity = repo.GetSingle(e => e.Name == "No entity");
Assert.IsNull(resultEntity);
}
public void GetSingle_FilterReturnsManyEntities_Throws()
{
TestEntity testEntityOne = new TestEntity {
Name = "Test Entity One"
};
TestEntity testEntityTwo = new TestEntity {
Name = "Test Entity Two"
};
TestEntity testEntityThree = new TestEntity {
Name = "Test Entity Three"
};
context.Entities.AddRange(new TestEntity[] { testEntityOne, testEntityTwo, testEntityThree });
context.SaveChanges();
var repo = new DataRepositoryUsingTestPersistenceContext <TestEntity>();
Assert.Throws <DataRepositoryException>(() => repo.GetSingle(e => e.Name.Length > 0));
}
public void GetSingle_AppliesFiltering()
{
TestEntity testEntityOne = new TestEntity {
Name = "Test Entity One"
};
TestEntity testEntityTwo = new TestEntity {
Name = "Test Entity Two"
};
TestEntity testEntityThree = new TestEntity {
Name = "Test Entity Three"
};
context.Entities.AddRange(new TestEntity[] { testEntityOne, testEntityTwo, testEntityThree });
context.SaveChanges();
var repo = new DataRepositoryUsingTestPersistenceContext <TestEntity>();
TestEntity resultEntity = repo.GetSingle(e => e.Name == "Test Entity Two");
Assert.That(testEntityEqComp.Equals(resultEntity, testEntityTwo));
}
public void GetSingle_AppliesNavigationProperties()
{
TestEntity testEntity = new TestEntity {
Name = "Test Entity"
};
testEntity.ChildEntities.Add(new TestChildEntity {
Name = "Test Child Entity One"
});
testEntity.ChildEntities.Add(new TestChildEntity {
Name = "Test Child Entity Two"
});
context.Entities.Add(testEntity);
context.SaveChanges();
var repo = new DataRepositoryUsingTestPersistenceContext <TestEntity>();
TestEntity resultEntity = repo.GetSingle(e => true, e => e.ChildEntities);
Assert.That(resultEntity.ChildEntities.Contains(testEntity.ChildEntities[0], testEntityEqComp),
$"Child entity not loaded: {testEntity.ChildEntities[0].Name}");
Assert.That(resultEntity.ChildEntities.Contains(testEntity.ChildEntities[1], testEntityEqComp),
$"Child entity not loaded: {testEntity.ChildEntities[1].Name}");
}