584 lines
14 KiB
Go
584 lines
14 KiB
Go
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// Copyright 2011 Google Inc. All Rights Reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package datastore
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import (
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"errors"
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"fmt"
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"reflect"
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"strings"
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"testing"
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"github.com/golang/protobuf/proto"
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"google.golang.org/appengine/internal"
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"google.golang.org/appengine/internal/aetesting"
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pb "google.golang.org/appengine/internal/datastore"
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)
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var (
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path1 = &pb.Path{
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Element: []*pb.Path_Element{
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{
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Type: proto.String("Gopher"),
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Id: proto.Int64(6),
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},
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},
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}
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path2 = &pb.Path{
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Element: []*pb.Path_Element{
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{
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Type: proto.String("Gopher"),
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Id: proto.Int64(6),
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},
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{
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Type: proto.String("Gopher"),
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Id: proto.Int64(8),
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},
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},
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}
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)
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func fakeRunQuery(in *pb.Query, out *pb.QueryResult) error {
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expectedIn := &pb.Query{
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App: proto.String("dev~fake-app"),
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Kind: proto.String("Gopher"),
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Compile: proto.Bool(true),
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}
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if !proto.Equal(in, expectedIn) {
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return fmt.Errorf("unsupported argument: got %v want %v", in, expectedIn)
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}
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*out = pb.QueryResult{
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Result: []*pb.EntityProto{
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{
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Key: &pb.Reference{
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App: proto.String("s~test-app"),
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Path: path1,
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},
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EntityGroup: path1,
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Property: []*pb.Property{
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{
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Meaning: pb.Property_TEXT.Enum(),
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Name: proto.String("Name"),
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Value: &pb.PropertyValue{
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StringValue: proto.String("George"),
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},
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},
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{
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Name: proto.String("Height"),
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Value: &pb.PropertyValue{
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Int64Value: proto.Int64(32),
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},
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},
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},
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},
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{
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Key: &pb.Reference{
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App: proto.String("s~test-app"),
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Path: path2,
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},
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EntityGroup: path1, // ancestor is George
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Property: []*pb.Property{
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{
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Meaning: pb.Property_TEXT.Enum(),
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Name: proto.String("Name"),
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Value: &pb.PropertyValue{
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StringValue: proto.String("Rufus"),
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},
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},
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// No height for Rufus.
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},
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},
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},
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MoreResults: proto.Bool(false),
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}
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return nil
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}
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type StructThatImplementsPLS struct{}
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func (StructThatImplementsPLS) Load(p []Property) error { return nil }
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func (StructThatImplementsPLS) Save() ([]Property, error) { return nil, nil }
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var _ PropertyLoadSaver = StructThatImplementsPLS{}
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type StructPtrThatImplementsPLS struct{}
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func (*StructPtrThatImplementsPLS) Load(p []Property) error { return nil }
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func (*StructPtrThatImplementsPLS) Save() ([]Property, error) { return nil, nil }
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var _ PropertyLoadSaver = &StructPtrThatImplementsPLS{}
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type PropertyMap map[string]Property
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func (m PropertyMap) Load(props []Property) error {
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for _, p := range props {
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if p.Multiple {
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return errors.New("PropertyMap does not support multiple properties")
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}
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m[p.Name] = p
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}
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return nil
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}
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func (m PropertyMap) Save() ([]Property, error) {
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props := make([]Property, 0, len(m))
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for _, p := range m {
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if p.Multiple {
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return nil, errors.New("PropertyMap does not support multiple properties")
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}
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props = append(props, p)
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}
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return props, nil
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}
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var _ PropertyLoadSaver = PropertyMap{}
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type Gopher struct {
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Name string
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Height int
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}
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// typeOfEmptyInterface is the type of interface{}, but we can't use
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// reflect.TypeOf((interface{})(nil)) directly because TypeOf takes an
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// interface{}.
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var typeOfEmptyInterface = reflect.TypeOf((*interface{})(nil)).Elem()
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func TestCheckMultiArg(t *testing.T) {
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testCases := []struct {
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v interface{}
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mat multiArgType
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elemType reflect.Type
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}{
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// Invalid cases.
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{nil, multiArgTypeInvalid, nil},
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{Gopher{}, multiArgTypeInvalid, nil},
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{&Gopher{}, multiArgTypeInvalid, nil},
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{PropertyList{}, multiArgTypeInvalid, nil}, // This is a special case.
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{PropertyMap{}, multiArgTypeInvalid, nil},
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{[]*PropertyList(nil), multiArgTypeInvalid, nil},
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{[]*PropertyMap(nil), multiArgTypeInvalid, nil},
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{[]**Gopher(nil), multiArgTypeInvalid, nil},
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{[]*interface{}(nil), multiArgTypeInvalid, nil},
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// Valid cases.
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{
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[]PropertyList(nil),
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multiArgTypePropertyLoadSaver,
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reflect.TypeOf(PropertyList{}),
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},
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{
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[]PropertyMap(nil),
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multiArgTypePropertyLoadSaver,
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reflect.TypeOf(PropertyMap{}),
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},
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{
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[]StructThatImplementsPLS(nil),
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multiArgTypePropertyLoadSaver,
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reflect.TypeOf(StructThatImplementsPLS{}),
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},
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{
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[]StructPtrThatImplementsPLS(nil),
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multiArgTypePropertyLoadSaver,
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reflect.TypeOf(StructPtrThatImplementsPLS{}),
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},
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{
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[]Gopher(nil),
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multiArgTypeStruct,
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reflect.TypeOf(Gopher{}),
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},
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{
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[]*Gopher(nil),
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multiArgTypeStructPtr,
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reflect.TypeOf(Gopher{}),
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},
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{
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[]interface{}(nil),
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multiArgTypeInterface,
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typeOfEmptyInterface,
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},
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}
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for _, tc := range testCases {
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mat, elemType := checkMultiArg(reflect.ValueOf(tc.v))
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if mat != tc.mat || elemType != tc.elemType {
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t.Errorf("checkMultiArg(%T): got %v, %v want %v, %v",
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tc.v, mat, elemType, tc.mat, tc.elemType)
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}
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}
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}
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func TestSimpleQuery(t *testing.T) {
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struct1 := Gopher{Name: "George", Height: 32}
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struct2 := Gopher{Name: "Rufus"}
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pList1 := PropertyList{
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{
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Name: "Name",
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Value: "George",
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},
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{
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Name: "Height",
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Value: int64(32),
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},
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}
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pList2 := PropertyList{
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{
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Name: "Name",
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Value: "Rufus",
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},
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}
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pMap1 := PropertyMap{
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"Name": Property{
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Name: "Name",
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Value: "George",
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},
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"Height": Property{
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Name: "Height",
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Value: int64(32),
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},
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}
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pMap2 := PropertyMap{
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"Name": Property{
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Name: "Name",
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Value: "Rufus",
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},
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}
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testCases := []struct {
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dst interface{}
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want interface{}
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}{
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// The destination must have type *[]P, *[]S or *[]*S, for some non-interface
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// type P such that *P implements PropertyLoadSaver, or for some struct type S.
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{new([]Gopher), &[]Gopher{struct1, struct2}},
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{new([]*Gopher), &[]*Gopher{&struct1, &struct2}},
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{new([]PropertyList), &[]PropertyList{pList1, pList2}},
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{new([]PropertyMap), &[]PropertyMap{pMap1, pMap2}},
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// Any other destination type is invalid.
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{0, nil},
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{Gopher{}, nil},
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{PropertyList{}, nil},
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{PropertyMap{}, nil},
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{[]int{}, nil},
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{[]Gopher{}, nil},
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{[]PropertyList{}, nil},
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{new(int), nil},
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{new(Gopher), nil},
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{new(PropertyList), nil}, // This is a special case.
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{new(PropertyMap), nil},
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{new([]int), nil},
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{new([]map[int]int), nil},
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{new([]map[string]Property), nil},
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{new([]map[string]interface{}), nil},
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{new([]*int), nil},
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{new([]*map[int]int), nil},
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{new([]*map[string]Property), nil},
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{new([]*map[string]interface{}), nil},
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{new([]**Gopher), nil},
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{new([]*PropertyList), nil},
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{new([]*PropertyMap), nil},
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}
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for _, tc := range testCases {
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nCall := 0
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c := aetesting.FakeSingleContext(t, "datastore_v3", "RunQuery", func(in *pb.Query, out *pb.QueryResult) error {
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nCall++
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return fakeRunQuery(in, out)
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})
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c = internal.WithAppIDOverride(c, "dev~fake-app")
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var (
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expectedErr error
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expectedNCall int
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)
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if tc.want == nil {
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expectedErr = ErrInvalidEntityType
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} else {
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expectedNCall = 1
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}
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keys, err := NewQuery("Gopher").GetAll(c, tc.dst)
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if err != expectedErr {
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t.Errorf("dst type %T: got error [%v], want [%v]", tc.dst, err, expectedErr)
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continue
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}
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if nCall != expectedNCall {
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t.Errorf("dst type %T: Context.Call was called an incorrect number of times: got %d want %d", tc.dst, nCall, expectedNCall)
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continue
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}
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if err != nil {
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continue
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}
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key1 := NewKey(c, "Gopher", "", 6, nil)
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expectedKeys := []*Key{
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key1,
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NewKey(c, "Gopher", "", 8, key1),
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}
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if l1, l2 := len(keys), len(expectedKeys); l1 != l2 {
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t.Errorf("dst type %T: got %d keys, want %d keys", tc.dst, l1, l2)
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continue
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}
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for i, key := range keys {
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if key.AppID() != "s~test-app" {
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t.Errorf(`dst type %T: Key #%d's AppID = %q, want "s~test-app"`, tc.dst, i, key.AppID())
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continue
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}
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if !keysEqual(key, expectedKeys[i]) {
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t.Errorf("dst type %T: got key #%d %v, want %v", tc.dst, i, key, expectedKeys[i])
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continue
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}
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}
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if !reflect.DeepEqual(tc.dst, tc.want) {
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t.Errorf("dst type %T: Entities got %+v, want %+v", tc.dst, tc.dst, tc.want)
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continue
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}
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}
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}
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// keysEqual is like (*Key).Equal, but ignores the App ID.
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func keysEqual(a, b *Key) bool {
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for a != nil && b != nil {
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if a.Kind() != b.Kind() || a.StringID() != b.StringID() || a.IntID() != b.IntID() {
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return false
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}
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a, b = a.Parent(), b.Parent()
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}
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return a == b
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}
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func TestQueriesAreImmutable(t *testing.T) {
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// Test that deriving q2 from q1 does not modify q1.
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q0 := NewQuery("foo")
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q1 := NewQuery("foo")
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q2 := q1.Offset(2)
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if !reflect.DeepEqual(q0, q1) {
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t.Errorf("q0 and q1 were not equal")
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}
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if reflect.DeepEqual(q1, q2) {
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t.Errorf("q1 and q2 were equal")
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}
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// Test that deriving from q4 twice does not conflict, even though
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// q4 has a long list of order clauses. This tests that the arrays
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// backed by a query's slice of orders are not shared.
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f := func() *Query {
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q := NewQuery("bar")
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// 47 is an ugly number that is unlikely to be near a re-allocation
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// point in repeated append calls. For example, it's not near a power
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// of 2 or a multiple of 10.
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for i := 0; i < 47; i++ {
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q = q.Order(fmt.Sprintf("x%d", i))
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}
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return q
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}
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q3 := f().Order("y")
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q4 := f()
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q5 := q4.Order("y")
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q6 := q4.Order("z")
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if !reflect.DeepEqual(q3, q5) {
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t.Errorf("q3 and q5 were not equal")
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}
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if reflect.DeepEqual(q5, q6) {
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t.Errorf("q5 and q6 were equal")
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}
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}
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|
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|
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|
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func TestFilterParser(t *testing.T) {
|
||
|
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testCases := []struct {
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|
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filterStr string
|
||
|
|
wantOK bool
|
||
|
|
wantFieldName string
|
||
|
|
wantOp operator
|
||
|
|
}{
|
||
|
|
// Supported ops.
|
||
|
|
{"x<", true, "x", lessThan},
|
||
|
|
{"x <", true, "x", lessThan},
|
||
|
|
{"x <", true, "x", lessThan},
|
||
|
|
{" x < ", true, "x", lessThan},
|
||
|
|
{"x <=", true, "x", lessEq},
|
||
|
|
{"x =", true, "x", equal},
|
||
|
|
{"x >=", true, "x", greaterEq},
|
||
|
|
{"x >", true, "x", greaterThan},
|
||
|
|
{"in >", true, "in", greaterThan},
|
||
|
|
{"in>", true, "in", greaterThan},
|
||
|
|
// Valid but (currently) unsupported ops.
|
||
|
|
{"x!=", false, "", 0},
|
||
|
|
{"x !=", false, "", 0},
|
||
|
|
{" x != ", false, "", 0},
|
||
|
|
{"x IN", false, "", 0},
|
||
|
|
{"x in", false, "", 0},
|
||
|
|
// Invalid ops.
|
||
|
|
{"x EQ", false, "", 0},
|
||
|
|
{"x lt", false, "", 0},
|
||
|
|
{"x <>", false, "", 0},
|
||
|
|
{"x >>", false, "", 0},
|
||
|
|
{"x ==", false, "", 0},
|
||
|
|
{"x =<", false, "", 0},
|
||
|
|
{"x =>", false, "", 0},
|
||
|
|
{"x !", false, "", 0},
|
||
|
|
{"x ", false, "", 0},
|
||
|
|
{"x", false, "", 0},
|
||
|
|
}
|
||
|
|
for _, tc := range testCases {
|
||
|
|
q := NewQuery("foo").Filter(tc.filterStr, 42)
|
||
|
|
if ok := q.err == nil; ok != tc.wantOK {
|
||
|
|
t.Errorf("%q: ok=%t, want %t", tc.filterStr, ok, tc.wantOK)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if !tc.wantOK {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if len(q.filter) != 1 {
|
||
|
|
t.Errorf("%q: len=%d, want %d", tc.filterStr, len(q.filter), 1)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
got, want := q.filter[0], filter{tc.wantFieldName, tc.wantOp, 42}
|
||
|
|
if got != want {
|
||
|
|
t.Errorf("%q: got %v, want %v", tc.filterStr, got, want)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestQueryToProto(t *testing.T) {
|
||
|
|
// The context is required to make Keys for the test cases.
|
||
|
|
var got *pb.Query
|
||
|
|
NoErr := errors.New("No error")
|
||
|
|
c := aetesting.FakeSingleContext(t, "datastore_v3", "RunQuery", func(in *pb.Query, out *pb.QueryResult) error {
|
||
|
|
got = in
|
||
|
|
return NoErr // return a non-nil error so Run doesn't keep going.
|
||
|
|
})
|
||
|
|
c = internal.WithAppIDOverride(c, "dev~fake-app")
|
||
|
|
|
||
|
|
testCases := []struct {
|
||
|
|
desc string
|
||
|
|
query *Query
|
||
|
|
want *pb.Query
|
||
|
|
err string
|
||
|
|
}{
|
||
|
|
{
|
||
|
|
desc: "empty",
|
||
|
|
query: NewQuery(""),
|
||
|
|
want: &pb.Query{},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "standard query",
|
||
|
|
query: NewQuery("kind").Order("-I").Filter("I >", 17).Filter("U =", "Dave").Limit(7).Offset(42),
|
||
|
|
want: &pb.Query{
|
||
|
|
Kind: proto.String("kind"),
|
||
|
|
Filter: []*pb.Query_Filter{
|
||
|
|
{
|
||
|
|
Op: pb.Query_Filter_GREATER_THAN.Enum(),
|
||
|
|
Property: []*pb.Property{
|
||
|
|
{
|
||
|
|
Name: proto.String("I"),
|
||
|
|
Value: &pb.PropertyValue{Int64Value: proto.Int64(17)},
|
||
|
|
Multiple: proto.Bool(false),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
Op: pb.Query_Filter_EQUAL.Enum(),
|
||
|
|
Property: []*pb.Property{
|
||
|
|
{
|
||
|
|
Name: proto.String("U"),
|
||
|
|
Value: &pb.PropertyValue{StringValue: proto.String("Dave")},
|
||
|
|
Multiple: proto.Bool(false),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
Order: []*pb.Query_Order{
|
||
|
|
{
|
||
|
|
Property: proto.String("I"),
|
||
|
|
Direction: pb.Query_Order_DESCENDING.Enum(),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
Limit: proto.Int32(7),
|
||
|
|
Offset: proto.Int32(42),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "ancestor",
|
||
|
|
query: NewQuery("").Ancestor(NewKey(c, "kind", "Mummy", 0, nil)),
|
||
|
|
want: &pb.Query{
|
||
|
|
Ancestor: &pb.Reference{
|
||
|
|
App: proto.String("dev~fake-app"),
|
||
|
|
Path: &pb.Path{
|
||
|
|
Element: []*pb.Path_Element{{Type: proto.String("kind"), Name: proto.String("Mummy")}},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "projection",
|
||
|
|
query: NewQuery("").Project("A", "B"),
|
||
|
|
want: &pb.Query{
|
||
|
|
PropertyName: []string{"A", "B"},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "projection with distinct",
|
||
|
|
query: NewQuery("").Project("A", "B").Distinct(),
|
||
|
|
want: &pb.Query{
|
||
|
|
PropertyName: []string{"A", "B"},
|
||
|
|
GroupByPropertyName: []string{"A", "B"},
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "keys only",
|
||
|
|
query: NewQuery("").KeysOnly(),
|
||
|
|
want: &pb.Query{
|
||
|
|
KeysOnly: proto.Bool(true),
|
||
|
|
RequirePerfectPlan: proto.Bool(true),
|
||
|
|
},
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "empty filter",
|
||
|
|
query: NewQuery("kind").Filter("=", 17),
|
||
|
|
err: "empty query filter field nam",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "bad filter type",
|
||
|
|
query: NewQuery("kind").Filter("M =", map[string]bool{}),
|
||
|
|
err: "bad query filter value type",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "bad filter operator",
|
||
|
|
query: NewQuery("kind").Filter("I <<=", 17),
|
||
|
|
err: `invalid operator "<<=" in filter "I <<="`,
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "empty order",
|
||
|
|
query: NewQuery("kind").Order(""),
|
||
|
|
err: "empty order",
|
||
|
|
},
|
||
|
|
{
|
||
|
|
desc: "bad order direction",
|
||
|
|
query: NewQuery("kind").Order("+I"),
|
||
|
|
err: `invalid order: "+I`,
|
||
|
|
},
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, tt := range testCases {
|
||
|
|
got = nil
|
||
|
|
if _, err := tt.query.Run(c).Next(nil); err != NoErr {
|
||
|
|
if tt.err == "" || !strings.Contains(err.Error(), tt.err) {
|
||
|
|
t.Errorf("%s: error %v, want %q", tt.desc, err, tt.err)
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if tt.err != "" {
|
||
|
|
t.Errorf("%s: no error, want %q", tt.desc, tt.err)
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
// Fields that are common to all protos.
|
||
|
|
tt.want.App = proto.String("dev~fake-app")
|
||
|
|
tt.want.Compile = proto.Bool(true)
|
||
|
|
if !proto.Equal(got, tt.want) {
|
||
|
|
t.Errorf("%s:\ngot %v\nwant %v", tt.desc, got, tt.want)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|