if err != nil {
		t.Fatal(err, entries.len())
	}
	if entries.len() != len(want) {
		t.Fatal("unexpected length:", entries.len(), "want:", len(want))
	}

	entries, err = r.readN(5, false, true, false, "")
	if err != nil {
		t.Fatal(err, entries.len())
	}
	want = loadMetacacheSampleNames[:5]
	if entries.len() != len(want) {
		t.Fatal("unexpected length:", entries.len(), "want:", len(want))
	}

	if err != nil {
		t.Fatalf("failed to parse schema, got error %v", err)
	}

	if len(userSchema.Relationships.Relations) != 1 {
		t.Fatalf("expects 1 relations, but got %v", len(userSchema.Relationships.Relations))
	}

	if createdByRel, ok := userSchema.Relationships.Relations["CreatedBy"]; ok {
		if createdByRel.FieldSchema != userSchema {

		t.Fatal(err)
	}
	isClosed := rlk.IsClosed()
	if isClosed {
		t.Fatal("File ref count shouldn't be zero")
	}

	// Increase reference count to 2.
	rlk.IncLockRef()

	isClosed = rlk.IsClosed()
	if isClosed {
		t.Fatal("File ref count shouldn't be zero")
	}

	// Decrease reference count by 1.
	if err = rlk.Close(); err != nil {
		t.Fatal(err)
	}

	isClosed = rlk.IsClosed()
	if isClosed {

	if err := DB.Create(user).Error; err != nil {
		t.Fatalf("failed to create user, got error %v", err)
	}

	if err := DB.Select(clause.Associations, "Pets.Toy").Delete(&user).Error; err != nil {
		t.Fatalf("failed to delete user, got error %v", err)
	}

		case tierRequestsSuccess:
			succ += metric.Value
		case tierRequestsFailure:
			fail += metric.Value
		}
	}
	if int(succ) != expSuccess {
		t.Fatalf("Expected %d successes but got %f", expSuccess, succ)
	}
	if int(fail) != expFailure {
		t.Fatalf("Expected %d failures but got %f", expFailure, fail)
	}

	if err := DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&lang).Error; err != nil {
		t.Fatalf("failed to upsert, got %v", err)
	}

	lang2 := Language{Code: "upsert", Name: "Upsert"}
	if err := DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&lang2).Error; err != nil {
		t.Fatalf("failed to upsert, got %v", err)
	}

	var langs []Language

	v := BaseOptions{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)

	v := MetricDescription{}
	bts, err := v.MarshalMsg(nil)
	if err != nil {
		t.Fatal(err)
	}
	left, err := v.UnmarshalMsg(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after UnmarshalMsg(): %q", len(left), left)
	}

	left, err = msgp.Skip(bts)
	if err != nil {
		t.Fatal(err)
	}
	if len(left) > 0 {
		t.Errorf("%d bytes left over after Skip(): %q", len(left), left)

		result := testCase.rulesMap.Clone()

		if !reflect.DeepEqual(result, testCase.rulesMap) {
			t.Fatalf("test %v: result: expected: %v, got: %v", i+1, testCase.rulesMap, result)
		}

		result.Add(testCase.rulesMapToAdd)
		if reflect.DeepEqual(result, testCase.rulesMap) {
			t.Fatalf("test %v: result: expected: not equal, got: equal", i+1)
		}
	}
}

func TestRulesMapAdd(t *testing.T) {

	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewDRWMutex(ds, "test")
	mu.Unlock(t.Context())
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic2(t *testing.T) {
	mu := NewDRWMutex(ds, "test-unlock-panic-2")
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}