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