Switch to using the dep tool and update all the dependencies
This commit is contained in:
Nick Craig-Wood
+413
@@ -0,0 +1,413 @@
|
||||
// Copyright 2015 Google Inc. 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 bigquery
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"testing"
|
||||
|
||||
"golang.org/x/net/context"
|
||||
"google.golang.org/api/iterator"
|
||||
)
|
||||
|
||||
type fetchResponse struct {
|
||||
result *readDataResult // The result to return.
|
||||
err error // The error to return.
|
||||
}
|
||||
|
||||
// pageFetcherStub services fetch requests by returning data from an in-memory list of values.
|
||||
type pageFetcherStub struct {
|
||||
fetchResponses map[string]fetchResponse
|
||||
|
||||
err error
|
||||
}
|
||||
|
||||
func (pf *pageFetcherStub) fetch(ctx context.Context, s service, token string) (*readDataResult, error) {
|
||||
call, ok := pf.fetchResponses[token]
|
||||
if !ok {
|
||||
pf.err = fmt.Errorf("Unexpected page token: %q", token)
|
||||
}
|
||||
return call.result, call.err
|
||||
}
|
||||
|
||||
func (pf *pageFetcherStub) setPaging(pc *pagingConf) {}
|
||||
|
||||
func TestIterator(t *testing.T) {
|
||||
var (
|
||||
iiSchema = Schema{
|
||||
{Type: IntegerFieldType},
|
||||
{Type: IntegerFieldType},
|
||||
}
|
||||
siSchema = Schema{
|
||||
{Type: StringFieldType},
|
||||
{Type: IntegerFieldType},
|
||||
}
|
||||
)
|
||||
fetchFailure := errors.New("fetch failure")
|
||||
|
||||
testCases := []struct {
|
||||
desc string
|
||||
pageToken string
|
||||
fetchResponses map[string]fetchResponse
|
||||
want [][]Value
|
||||
wantErr error
|
||||
wantSchema Schema
|
||||
}{
|
||||
{
|
||||
desc: "Iteration over single empty page",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{},
|
||||
schema: Schema{},
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{},
|
||||
wantSchema: Schema{},
|
||||
},
|
||||
{
|
||||
desc: "Iteration over single page",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{1, 2}, {11, 12}},
|
||||
wantSchema: iiSchema,
|
||||
},
|
||||
{
|
||||
desc: "Iteration over single page with different schema",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{"1", 2}, {"11", 12}},
|
||||
schema: siSchema,
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{"1", 2}, {"11", 12}},
|
||||
wantSchema: siSchema,
|
||||
},
|
||||
{
|
||||
desc: "Iteration over two pages",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "a",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"a": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{101, 102}, {111, 112}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{1, 2}, {11, 12}, {101, 102}, {111, 112}},
|
||||
wantSchema: iiSchema,
|
||||
},
|
||||
{
|
||||
desc: "Server response includes empty page",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "a",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"a": {
|
||||
result: &readDataResult{
|
||||
pageToken: "b",
|
||||
rows: [][]Value{},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"b": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{101, 102}, {111, 112}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{1, 2}, {11, 12}, {101, 102}, {111, 112}},
|
||||
wantSchema: iiSchema,
|
||||
},
|
||||
{
|
||||
desc: "Fetch error",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "a",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"a": {
|
||||
// We returns some data from this fetch, but also an error.
|
||||
// So the end result should include only data from the previous fetch.
|
||||
err: fetchFailure,
|
||||
result: &readDataResult{
|
||||
pageToken: "b",
|
||||
rows: [][]Value{{101, 102}, {111, 112}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{1, 2}, {11, 12}},
|
||||
wantErr: fetchFailure,
|
||||
wantSchema: iiSchema,
|
||||
},
|
||||
|
||||
{
|
||||
desc: "Skip over an entire page",
|
||||
pageToken: "a",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "a",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"a": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{101, 102}, {111, 112}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{101, 102}, {111, 112}},
|
||||
wantSchema: iiSchema,
|
||||
},
|
||||
|
||||
{
|
||||
desc: "Skip beyond all data",
|
||||
pageToken: "b",
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "a",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"a": {
|
||||
result: &readDataResult{
|
||||
pageToken: "b",
|
||||
rows: [][]Value{{101, 102}, {111, 112}},
|
||||
schema: iiSchema,
|
||||
},
|
||||
},
|
||||
"b": {
|
||||
result: &readDataResult{},
|
||||
},
|
||||
},
|
||||
// In this test case, Next will return false on its first call,
|
||||
// so we won't even attempt to call Get.
|
||||
want: [][]Value{},
|
||||
wantSchema: Schema{},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
pf := &pageFetcherStub{
|
||||
fetchResponses: tc.fetchResponses,
|
||||
}
|
||||
it := newRowIterator(context.Background(), nil, pf)
|
||||
it.PageInfo().Token = tc.pageToken
|
||||
values, schema, err := consumeRowIterator(it)
|
||||
if err != tc.wantErr {
|
||||
t.Fatalf("%s: got %v, want %v", tc.desc, err, tc.wantErr)
|
||||
}
|
||||
if (len(values) != 0 || len(tc.want) != 0) && !reflect.DeepEqual(values, tc.want) {
|
||||
t.Errorf("%s: values:\ngot: %v\nwant:%v", tc.desc, values, tc.want)
|
||||
}
|
||||
if (len(schema) != 0 || len(tc.wantSchema) != 0) && !reflect.DeepEqual(schema, tc.wantSchema) {
|
||||
t.Errorf("%s: iterator.Schema:\ngot: %v\nwant: %v", tc.desc, schema, tc.wantSchema)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type valueListWithSchema struct {
|
||||
vals valueList
|
||||
schema Schema
|
||||
}
|
||||
|
||||
func (v *valueListWithSchema) Load(vs []Value, s Schema) error {
|
||||
v.vals.Load(vs, s)
|
||||
v.schema = s
|
||||
return nil
|
||||
}
|
||||
|
||||
// consumeRowIterator reads the schema and all values from a RowIterator and returns them.
|
||||
func consumeRowIterator(it *RowIterator) ([][]Value, Schema, error) {
|
||||
var got [][]Value
|
||||
var schema Schema
|
||||
for {
|
||||
var vls valueListWithSchema
|
||||
err := it.Next(&vls)
|
||||
if err == iterator.Done {
|
||||
return got, schema, nil
|
||||
}
|
||||
if err != nil {
|
||||
return got, schema, err
|
||||
}
|
||||
got = append(got, vls.vals)
|
||||
schema = vls.schema
|
||||
}
|
||||
}
|
||||
|
||||
type delayedPageFetcher struct {
|
||||
pageFetcherStub
|
||||
delayCount int
|
||||
}
|
||||
|
||||
func (pf *delayedPageFetcher) fetch(ctx context.Context, s service, token string) (*readDataResult, error) {
|
||||
if pf.delayCount > 0 {
|
||||
pf.delayCount--
|
||||
return nil, errIncompleteJob
|
||||
}
|
||||
return pf.pageFetcherStub.fetch(ctx, s, token)
|
||||
}
|
||||
|
||||
func TestIterateIncompleteJob(t *testing.T) {
|
||||
want := [][]Value{{1, 2}, {11, 12}, {101, 102}, {111, 112}}
|
||||
pf := pageFetcherStub{
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "a",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
},
|
||||
},
|
||||
"a": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{101, 102}, {111, 112}},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
dpf := &delayedPageFetcher{
|
||||
pageFetcherStub: pf,
|
||||
delayCount: 1,
|
||||
}
|
||||
it := newRowIterator(context.Background(), nil, dpf)
|
||||
|
||||
values, _, err := consumeRowIterator(it)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if (len(values) != 0 || len(want) != 0) && !reflect.DeepEqual(values, want) {
|
||||
t.Errorf("values: got:\n%v\nwant:\n%v", values, want)
|
||||
}
|
||||
if dpf.delayCount != 0 {
|
||||
t.Errorf("delayCount: got: %v, want: 0", dpf.delayCount)
|
||||
}
|
||||
}
|
||||
|
||||
func TestNextDuringErrorState(t *testing.T) {
|
||||
pf := &pageFetcherStub{
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {err: errors.New("bang")},
|
||||
},
|
||||
}
|
||||
it := newRowIterator(context.Background(), nil, pf)
|
||||
var vals []Value
|
||||
if err := it.Next(&vals); err == nil {
|
||||
t.Errorf("Expected error after calling Next")
|
||||
}
|
||||
if err := it.Next(&vals); err == nil {
|
||||
t.Errorf("Expected error calling Next again when iterator has a non-nil error.")
|
||||
}
|
||||
}
|
||||
|
||||
func TestNextAfterFinished(t *testing.T) {
|
||||
testCases := []struct {
|
||||
fetchResponses map[string]fetchResponse
|
||||
want [][]Value
|
||||
}{
|
||||
{
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{{1, 2}, {11, 12}},
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{{1, 2}, {11, 12}},
|
||||
},
|
||||
{
|
||||
fetchResponses: map[string]fetchResponse{
|
||||
"": {
|
||||
result: &readDataResult{
|
||||
pageToken: "",
|
||||
rows: [][]Value{},
|
||||
},
|
||||
},
|
||||
},
|
||||
want: [][]Value{},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range testCases {
|
||||
pf := &pageFetcherStub{
|
||||
fetchResponses: tc.fetchResponses,
|
||||
}
|
||||
it := newRowIterator(context.Background(), nil, pf)
|
||||
|
||||
values, _, err := consumeRowIterator(it)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if (len(values) != 0 || len(tc.want) != 0) && !reflect.DeepEqual(values, tc.want) {
|
||||
t.Errorf("values: got:\n%v\nwant:\n%v", values, tc.want)
|
||||
}
|
||||
// Try calling Get again.
|
||||
var vals []Value
|
||||
if err := it.Next(&vals); err != iterator.Done {
|
||||
t.Errorf("Expected Done calling Next when there are no more values")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestIteratorNextTypes(t *testing.T) {
|
||||
it := newRowIterator(context.Background(), nil, nil)
|
||||
for _, v := range []interface{}{3, "s", []int{}, &[]int{},
|
||||
map[string]Value{}, &map[string]interface{}{},
|
||||
struct{}{},
|
||||
} {
|
||||
if err := it.Next(v); err == nil {
|
||||
t.Error("%v: want error, got nil", v)
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user