github.com/unigraph-dev/dgraph@v1.1.1-0.20200923154953-8b52b426f765/gql/state_test.go

/*
 * Copyright 2015-2018 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 gql

import (
	"testing"

	"github.com/stretchr/testify/require"

	"github.com/dgraph-io/dgraph/lex"
)

func TestQueryLexing(t *testing.T) {
	input := `
	query {
		me(_xid_: rick, id:10 ) {
			name0 # my name
			_city, # 0what would fail lex.
			profilePic(width: 100, height: 100)
			friends {
				name
			}
		}
	}`
	l := &lex.Lexer{}
	l.Reset(input)
	l.Run(lexQuery)

	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String())
	}
}

func TestMutationLexing(t *testing.T) {
	input := `
	mutation {
		set {
			What is <this> .
			Why is this #!!?
			How is this?
		}
		delete {
			Why is this
		}
	}
	query {
		me(_xid_: rick) {
			_city
		}
	}`
	l := &lex.Lexer{}
	l.Reset(input)
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError, "Error: %v", item.String())
		t.Log(item.String())
	}
}

func TestNewSchemaQuery(t *testing.T) {
	input := `
	schema {
		pred
		type
	}
	schema( pred : name ) {
		pred
		type
	}
	schema( pred : name,hi ) { #This is valid in lexer, parser would throw error
		pred
		type
	}
	schema( pred : [name,hi] ) {
		pred
		type
	}`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String())
	}
}

func TestAbruptSchemaQuery(t *testing.T) {
	input := `
	schema {
		pred
	`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	var typ lex.ItemType
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		t.Log(item.String())
		typ = item.Typ
	}
	require.Equal(t, lex.ItemError, typ)
}

func TestAbruptMutation(t *testing.T) {
	input := `
	mutation {
		set {
			What is <this> .
			Why is this #!!?
			How is this?
	}`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	var typ lex.ItemType
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		t.Log(item.String())
		typ = item.Typ
	}
	require.Equal(t, lex.ItemError, typ)
}

func TestVariables1(t *testing.T) {
	input := `
	query testQuery($username: String!) {
		me(_xid_: rick) {
			_city
		}
	}`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String(), item.Typ)
	}
}

func TestVariables2(t *testing.T) {
	input := `
	query testQuery ($username: String, $id: int, $email: string) {
		me(_xid_: rick) {
			_city
		}
	}`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String(), item.Typ)
	}
}

func TestVariablesDefault(t *testing.T) {
	input := `
	query testQuery ($username: string = abc, $id: int = 5, $email: string) {
		me(_xid_: rick) {
			_city
		}
	}`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String())
	}
}

func TestIRIRef(t *testing.T) {
	input := `
	query testQuery {
		me(id : <http://helloworld.com/how/are/you>) {
		        <http://verygood.com/what/about/you>
		}
	}`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String())
	}
}

func TestLangSupport(t *testing.T) {
	input := `
	query {
		me(id: test) {
			name@en
		}
	}
	`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String())
	}
}

func TestMultiLangSupport(t *testing.T) {
	input := `
	query {
		me(id: test) {
			name@en, name@en:ru:fr:de
		}
	}
	`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		t.Log(item.String())
	}
}

func TestNumberInLang(t *testing.T) {
	input := `
	{
		q(func: eq(name@es-419, "aoeu")) {
			name@.
		}
	}
	`
	l := lex.Lexer{
		Input: input,
	}
	l.Run(lexTopLevel)
	it := l.NewIterator()
	gotEs := false
	for it.Next() {
		item := it.Item()
		require.NotEqual(t, item.Typ, lex.ItemError)
		if item.Val == "es-419" {
			gotEs = true
		}
	}
	require.True(t, gotEs)
}