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query4_test.go
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/*
* Copyright 2019 Dgraph Labs, Inc. and Contributors
*
* 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 query
import (
"context"
"testing"
"github.com/stretchr/testify/require"
)
func TestBigMathValue(t *testing.T) {
s1 := testSchema + "\n money: int .\n"
setSchema(s1)
triples := `
_:user1 <money> "48038396025285290" .
`
addTriplesToCluster(triples)
t.Run("div", func(t *testing.T) {
q1 := `
{
q(func: has(money)) {
f as money
g: math(f/2)
}
}
`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data":{"q":[
{"money":48038396025285290,
"g":24019198012642645}
]}}`, js)
})
t.Run("add", func(t *testing.T) {
q1 := `
{
q(func: has(money)) {
f as money
g: math(2+f)
}
}
`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data":{"q":[
{"money":48038396025285290,
"g":48038396025285292}
]}}`, js)
})
t.Run("sub", func(t *testing.T) {
q1 := `
{
q(func: has(money)) {
f as money
g: math(f-2)
}
}
`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data":{"q":[
{"money":48038396025285290,
"g":48038396025285288}
]}}`, js)
})
}
func TestFloatConverstion(t *testing.T) {
t.Run("Convert up to float", func(t *testing.T) {
query := `
{
me as var(func: eq(name, "Michonne"))
var(func: uid(me)) {
friend {
x as age
}
x2 as sum(val(x))
c as count(friend)
}
me(func: uid(me)) {
ceilAge: math(ceil((1.0*x2)/c))
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"me":[{"ceilAge":14.000000}]}}`, js)
})
t.Run("Int aggregation only", func(t *testing.T) {
query := `
{
me as var(func: eq(name, "Michonne"))
var(func: uid(me)) {
friend {
x as age
}
x2 as sum(val(x))
c as count(friend)
}
me(func: uid(me)) {
ceilAge: math(ceil(x2/c))
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"me":[{"ceilAge":13.000000}]}}`, js)
})
}
func TestDeleteAndReaddIndex(t *testing.T) {
// Add new predicate with several indices.
s1 := testSchema + "\n numerology: string @index(exact, term, fulltext) .\n"
setSchema(s1)
triples := `
<0x666> <numerology> "This number is evil" .
<0x777> <numerology> "This number is good" .
`
addTriplesToCluster(triples)
// Verify fulltext index works as expected.
q1 := `
{
me(func: anyoftext(numerology, "numbers")) {
uid
numerology
}
}`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [
{"uid": "0x666", "numerology": "This number is evil"},
{"uid": "0x777", "numerology": "This number is good"}
]}}`, js)
// Remove the fulltext index and verify the previous query is no longer supported.
s2 := testSchema + "\n numerology: string @index(exact, term) .\n"
setSchema(s2)
_, err := processQuery(context.Background(), t, q1)
require.Error(t, err)
require.Contains(t, err.Error(), "Attribute numerology is not indexed with type fulltext")
// Verify term index still works as expected.
q2 := `
{
me(func: anyofterms(numerology, "number")) {
uid
numerology
}
}`
js = processQueryNoErr(t, q2)
require.JSONEq(t, `{"data": {"me": [
{"uid": "0x666", "numerology": "This number is evil"},
{"uid": "0x777", "numerology": "This number is good"}
]}}`, js)
// Re-add index and verify that the original query works again.
setSchema(s1)
js = processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [
{"uid": "0x666", "numerology": "This number is evil"},
{"uid": "0x777", "numerology": "This number is good"}
]}}`, js)
// Finally, drop the predicate and restore schema.
dropPredicate("numerology")
setSchema(testSchema)
}
func TestDeleteAndReaddCount(t *testing.T) {
// Add new predicate with count index.
s1 := testSchema + "\n numerology: string @count .\n"
setSchema(s1)
triples := `
<0x666> <numerology> "This number is evil" .
<0x777> <numerology> "This number is good" .
`
addTriplesToCluster(triples)
// Verify count index works as expected.
q1 := `
{
me(func: gt(count(numerology), 0)) {
uid
numerology
}
}`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [
{"uid": "0x666", "numerology": "This number is evil"},
{"uid": "0x777", "numerology": "This number is good"}
]}}`, js)
// Remove the count index and verify the previous query is no longer supported.
s2 := testSchema + "\n numerology: string .\n"
setSchema(s2)
_, err := processQuery(context.Background(), t, q1)
require.Error(t, err)
require.Contains(t, err.Error(), "Need @count directive in schema for attr: numerology")
// Re-add count index and verify that the original query works again.
setSchema(s1)
js = processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [
{"uid": "0x666", "numerology": "This number is evil"},
{"uid": "0x777", "numerology": "This number is good"}
]}}`, js)
// Finally, drop the predicate and restore schema.
dropPredicate("numerology")
setSchema(testSchema)
}
func TestDeleteAndReaddReverse(t *testing.T) {
// Add new predicate with a reverse edge.
s1 := testSchema + "\n child_pred: uid @reverse .\n"
setSchema(s1)
triples := `<0x666> <child_pred> <0x777> .`
addTriplesToCluster(triples)
// Verify reverse edges works as expected.
q1 := `
{
me(func: uid(0x777)) {
~child_pred {
uid
}
}
}`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [{"~child_pred": [{"uid": "0x666"}]}]}}`, js)
// Remove the reverse edges and verify the previous query is no longer supported.
s2 := testSchema + "\n child_pred: uid .\n"
setSchema(s2)
_, err := processQuery(context.Background(), t, q1)
require.Error(t, err)
require.Contains(t, err.Error(), "Predicate child_pred doesn't have reverse edge")
// Re-add reverse edges and verify that the original query works again.
setSchema(s1)
js = processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [{"~child_pred": [{"uid": "0x666"}]}]}}`, js)
// Finally, drop the predicate and restore schema.
dropPredicate("child_pred")
setSchema(testSchema)
}
func TestDropPredicate(t *testing.T) {
// Add new predicate with several indices.
s1 := testSchema + "\n numerology: string @index(term) .\n"
setSchema(s1)
triples := `
<0x666> <numerology> "This number is evil" .
<0x777> <numerology> "This number is good" .
`
addTriplesToCluster(triples)
// Verify queries work as expected.
q1 := `
{
me(func: anyofterms(numerology, "number")) {
uid
numerology
}
}`
js := processQueryNoErr(t, q1)
require.JSONEq(t, `{"data": {"me": [
{"uid": "0x666", "numerology": "This number is evil"},
{"uid": "0x777", "numerology": "This number is good"}
]}}`, js)
// Finally, drop the predicate and verify the query no longer works because
// the index was dropped when all the data for that predicate was deleted.
dropPredicate("numerology")
_, err := processQuery(context.Background(), t, q1)
require.Error(t, err)
require.Contains(t, err.Error(), "Attribute numerology is not indexed with type term")
// Finally, restore the schema.
setSchema(testSchema)
}
func TestNestedExpandAll(t *testing.T) {
query := `{
q(func: has(node)) {
uid
expand(_all_) {
uid
node {
uid
expand(_all_)
}
}
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {
"q": [
{
"uid": "0x2b5c",
"name": "expand",
"node": [
{
"uid": "0x2b5c",
"node": [
{
"uid": "0x2b5c",
"name": "expand"
}
]
}
]
}
]}}`, js)
}
func TestNoResultsFilter(t *testing.T) {
query := `{
q(func: has(nonexistent_pred)) @filter(le(name, "abc")) {
uid
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q": []}}`, js)
}
func TestNoResultsPagination(t *testing.T) {
query := `{
q(func: has(nonexistent_pred), first: 50) {
uid
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q": []}}`, js)
}
func TestNoResultsGroupBy(t *testing.T) {
query := `{
q(func: has(nonexistent_pred)) @groupby(name) {
count(uid)
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {}}`, js)
}
func TestNoResultsOrder(t *testing.T) {
query := `{
q(func: has(nonexistent_pred), orderasc: name) {
uid
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q": []}}`, js)
}
func TestNoResultsCount(t *testing.T) {
query := `{
q(func: has(nonexistent_pred)) {
uid
count(friend)
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q": []}}`, js)
}
func TestTypeExpandAll(t *testing.T) {
query := `{
q(func: eq(make, "Ford")) {
expand(_all_) {
uid
}
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q":[
{"make":"Ford","model":"Focus","year":2008, "~previous_model": [{"uid":"0xc9"}]},
{"make":"Ford","model":"Focus","year":2009, "previous_model": {"uid":"0xc8"}}
]}}`, js)
}
func TestTypeExpandLang(t *testing.T) {
query := `{
q(func: eq(make, "Toyota")) {
expand(_all_) {
uid
}
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q":[
{"name": "Car", "make":"Toyota","model":"Prius", "model@jp":"プリウス", "year":2009,
"owner": [{"uid": "0xcb"}]}]}}`, js)
}
func TestTypeExpandExplicitType(t *testing.T) {
query := `{
q(func: eq(make, "Toyota")) {
expand(Object) {
uid
}
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q":[{"name":"Car", "owner": [{"uid": "0xcb"}]}]}}`, js)
}
func TestTypeExpandMultipleExplicitTypes(t *testing.T) {
query := `{
q(func: eq(make, "Toyota")) {
expand(CarModel, Object) {
uid
}
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{"data": {"q":[
{"name": "Car", "make":"Toyota","model":"Prius", "model@jp":"プリウス", "year":2009,
"owner": [{"uid": "0xcb"}]}]}}`, js)
}
// Test Related to worker based pagination.
func TestHasOrderDesc(t *testing.T) {
query := `{
q(func:has(name), orderdesc: name, first:5) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": ""
},
{
"name": ""
},
{
"name": "Badger"
},
{
"name": "name"
},
{
"name": "expand"
}
]
}
}`, js)
}
func TestHasOrderDescOffset(t *testing.T) {
query := `{
q(func:has(name), orderdesc: name, first:5, offset: 5) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": "Shoreline Amphitheater"
},
{
"name": "School B"
},
{
"name": "School A"
},
{
"name": "San Mateo School District"
},
{
"name": "San Mateo High School"
}
]
}
}`, js)
}
func TestHasOrderAsc(t *testing.T) {
query := `{
q(func:has(name), orderasc: name, first:5) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": ""
},
{
"name": ""
},
{
"name": "Alex"
},
{
"name": "Alice"
},
{
"name": "Alice"
}
]
}
}`, js)
}
func TestHasOrderAscOffset(t *testing.T) {
query := `{
q(func:has(name), orderasc: name, first:5, offset: 5) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": "Alice"
},
{
"name": "Alice"
},
{
"name": "Alice"
},
{
"name": "Alice\""
},
{
"name": "Andre"
}
]
}
}`, js)
}
func TestHasFirst(t *testing.T) {
query := `{
q(func:has(name),first:5) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": "Michonne"
},
{
"name": "King Lear"
},
{
"name": "Margaret"
},
{
"name": "Leonard"
},
{
"name": "Garfield"
}
]
}
}`, js)
}
// This test is not working currently, but start working after
// PR https://github.com/dgraph-io/dgraph/pull/4316 is merged.
// func TestHasFirstLangPredicate(t *testing.T) {
// query := `{
// q(func:has(name@lang), orderasc: name, first:5) {
// name@lang
// }
// }`
// js := processQueryNoErr(t, query)
// require.JSONEq(t, `{
// {
// "data":{
// "q":[
// {
// "name@en":"Alex"
// },
// {
// "name@en":"Amit"
// },
// {
// "name@en":"Andrew"
// },
// {
// "name@en":"Artem Tkachenko"
// },
// {
// "name@en":"European badger"
// }
// ]
// }
// }`, js)
// }
func TestHasCountPredicateWithLang(t *testing.T) {
query := `{
q(func:has(name@en), first: 5) {
count(uid)
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data":{
"q":[
{
"count":5
}
]
}
}`, js)
}
func TestRegExpVariable(t *testing.T) {
query := `
query {
q (func: has(name)) @filter( regexp(name, /King*/) ) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [{
"name": "King Lear"
}]
}
}`, js)
}
func TestRegExpVariableReplacement(t *testing.T) {
query := `
query all($regexp_query: string = "/King*/" ) {
q (func: has(name)) @filter( regexp(name, $regexp_query) ) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [{
"name": "King Lear"
}]
}
}`, js)
}
func TestHasFirstOffset(t *testing.T) {
query := `{
q(func:has(name),first:5, offset: 5) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": "Bear"
},
{
"name": "Nemo"
},
{
"name": "name"
},
{
"name": "Rick Grimes"
},
{
"name": "Glenn Rhee"
}
]
}
}`, js)
}
func TestHasFirstFilter(t *testing.T) {
query := `{
q(func:has(name), first: 1, offset:2)@filter(lt(age, 25)) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": "Daryl Dixon"
}
]
}
}`, js)
}
func TestHasFilterOrderOffset(t *testing.T) {
query := `{
q(func:has(name), first: 2, offset:2, orderasc: name)@filter(gt(age, 20)) {
name
}
}`
js := processQueryNoErr(t, query)
require.JSONEq(t, `{
"data": {
"q": [
{
"name": "Alice"
},
{
"name": "Bob"
}
]
}
}`, js)
}
func TestCascadeSubQuery1(t *testing.T) {
query := `
{
me(func: uid(0x01)) {
name
full_name
gender
friend @cascade {
name
full_name
friend {
name
full_name
dob
age
}
}
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `
{
"data": {
"me": [
{
"name": "Michonne",
"full_name": "Michonne's large name for hashing",
"gender": "female"
}
]
}
}`, js)
}
func TestCascadeSubQuery2(t *testing.T) {
query := `
{
me(func: uid(0x01)) {
name
full_name
gender
friend {
name
full_name
friend @cascade {
name
full_name
dob
age
}
}
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `
{
"data": {
"me": [
{
"name": "Michonne",
"full_name": "Michonne's large name for hashing",
"gender": "female",
"friend": [
{
"name": "Rick Grimes",
"friend": [
{
"name": "Michonne",
"full_name": "Michonne's large name for hashing",
"dob": "1910-01-01T00:00:00Z",
"age": 38
}
]
},
{
"name": "Glenn Rhee"
},
{
"name": "Daryl Dixon"
},
{
"name": "Andrea"
}
]
}
]
}
}`, js)
}
func TestCascadeRepeatedMultipleLevels(t *testing.T) {
// It should have result same as applying @cascade at the top level friend predicate.
query := `
{
me(func: uid(0x01)) {
name
full_name
gender
friend @cascade {
name
full_name
friend @cascade {
name
full_name
dob
age
}
}
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `
{
"data": {
"me": [
{
"name": "Michonne",
"full_name": "Michonne's large name for hashing",
"gender": "female"
}
]
}
}`, js)
}
func TestCascadeSubQueryWithFilter(t *testing.T) {
query := `
{
me(func: uid(0x01)) {
name
full_name
gender
friend {
name
full_name
friend @cascade @filter(gt(age, 40)) {
name
full_name
dob
age
}
}
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `
{
"data": {
"me": [
{
"name": "Michonne",
"full_name": "Michonne's large name for hashing",
"gender": "female",
"friend": [
{
"name": "Rick Grimes"
},
{
"name": "Glenn Rhee"
},
{
"name": "Daryl Dixon"
},
{
"name": "Andrea"
}
]
}
]
}
}`, js)
}
func TestCascadeSubQueryWithVars1(t *testing.T) {
query := `
{
him(func: uid(0x01)) {
L as friend {
B as friend @cascade {
name
}
}
}
me(func: uid(L, B)) {
name
}
}
`
js := processQueryNoErr(t, query)
require.JSONEq(t, `
{
"data": {
"him": [
{
"friend": [
{
"friend": [
{
"name": "Michonne"
}
]
},
{
"friend": [
{
"name": "Glenn Rhee"
}
]
}
]
}
],
"me": [
{
"name": "Michonne"
},
{
"name": "Rick Grimes"
},
{
"name": "Glenn Rhee"
},
{
"name": "Daryl Dixon"
},
{
"name": "Andrea"
}
]
}
}`, js)
}
func TestCascadeSubQueryWithVars2(t *testing.T) {
query := `
{
var(func: uid(0x01)) {
L as friend @cascade {
B as friend
}
}
me(func: uid(L, B)) {