70 lines
2.1 KiB
Go
70 lines
2.1 KiB
Go
// Copyright 2014 The Cayley Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package iterator
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import (
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"errors"
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"testing"
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)
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func TestMaterializeIteratorError(t *testing.T) {
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wantErr := errors.New("unique")
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errIt := newTestIterator(false, wantErr)
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// This tests that we properly return 0 results and the error when the
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// underlying iterator returns an error.
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mIt := NewMaterialize(errIt)
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if mIt.Next() != false {
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t.Errorf("Materialize iterator did not pass through underlying 'false'")
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}
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if mIt.Err() != wantErr {
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t.Errorf("Materialize iterator did not pass through underlying Err")
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}
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}
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func TestMaterializeIteratorErrorAbort(t *testing.T) {
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wantErr := errors.New("unique")
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errIt := newTestIterator(false, wantErr)
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// This tests that we properly return 0 results and the error when the
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// underlying iterator is larger than our 'abort at' value, and then
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// returns an error.
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or := NewOr()
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or.AddSubIterator(NewInt64(1, int64(abortMaterializeAt+1)))
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or.AddSubIterator(errIt)
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mIt := NewMaterialize(or)
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// We should get all the underlying values...
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for i := 0; i < abortMaterializeAt+1; i++ {
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if !mIt.Next() {
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t.Errorf("Materialize iterator returned spurious 'false' on iteration %d", i)
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return
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}
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if mIt.Err() != nil {
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t.Errorf("Materialize iterator returned non-nil Err on iteration %d", i)
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return
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}
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}
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// ... and then the error value.
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if mIt.Next() != false {
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t.Errorf("Materialize iterator did not pass through underlying 'false'")
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}
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if mIt.Err() != wantErr {
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t.Errorf("Materialize iterator did not pass through underlying Err")
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}
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}
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