Revision 48ad042083b8bca89eec4dae96dd78416d8c8776 authored by Iddan Aaronsohn on 22 October 2019, 21:50:39 UTC, committed by Iddan Aaronsohn on 22 October 2019, 22:17:08 UTC
1 parent 9c79218
materialize_test.go
// Copyright 2014 The Cayley Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package iterator_test
import (
"context"
"errors"
"testing"
"github.com/stretchr/testify/require"
. "github.com/cayleygraph/cayley/graph/iterator"
)
func TestMaterializeIteratorError(t *testing.T) {
ctx := context.TODO()
wantErr := errors.New("unique")
errIt := newTestIterator(false, wantErr)
// This tests that we properly return 0 results and the error when the
// underlying iterator returns an error.
mIt := NewMaterialize(errIt).Iterate()
require.False(t, mIt.Next(ctx))
require.Equal(t, wantErr, mIt.Err())
}
func TestMaterializeIteratorErrorAbort(t *testing.T) {
ctx := context.TODO()
wantErr := errors.New("unique")
errIt := newTestIterator(false, wantErr)
// This tests that we properly return 0 results and the error when the
// underlying iterator is larger than our 'abort at' value, and then
// returns an error.
or := NewOr(
newInt64(1, int64(MaterializeLimit+1), true),
errIt,
)
mIt := NewMaterialize(or).Iterate()
// We should get all the underlying values...
for i := 0; i < MaterializeLimit+1; i++ {
require.True(t, mIt.Next(ctx))
require.NoError(t, mIt.Err())
}
// ... and then the error value.
require.False(t, mIt.Next(ctx))
require.Equal(t, wantErr, mIt.Err())
}
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