super-graph/psql/psql_test.go

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package psql
import (
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"os"
"strings"
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"testing"
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"github.com/dosco/super-graph/qcode"
)
const (
errNotExpected = "Generated SQL did not match what was expected"
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)
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var (
qcompile *qcode.Compiler
pcompile *Compiler
)
func TestMain(m *testing.M) {
fm := qcode.NewFilterMap(map[string]string{
"users": "{ id: { _eq: $user_id } }",
"posts": "{ account_id: { _eq: $account_id } }",
})
bl := qcode.NewBlacklist([]string{
"secret",
"password",
"token",
})
qcompile = qcode.NewCompiler(fm, bl)
tables := []*DBTable{
&DBTable{Name: "customers", Type: "table"},
&DBTable{Name: "users", Type: "table"},
&DBTable{Name: "products", Type: "table"},
&DBTable{Name: "purchases", Type: "table"},
}
columns := [][]*DBColumn{
[]*DBColumn{
&DBColumn{ID: 1, Name: "id", Type: "bigint", NotNull: true, PrimaryKey: true, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 2, Name: "full_name", Type: "character varying", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 3, Name: "phone", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 4, Name: "email", Type: "character varying", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 5, Name: "encrypted_password", Type: "character varying", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 6, Name: "reset_password_token", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 7, Name: "reset_password_sent_at", Type: "timestamp without time zone", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 8, Name: "remember_created_at", Type: "timestamp without time zone", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 9, Name: "created_at", Type: "timestamp without time zone", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 10, Name: "updated_at", Type: "timestamp without time zone", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)}},
[]*DBColumn{
&DBColumn{ID: 1, Name: "id", Type: "bigint", NotNull: true, PrimaryKey: true, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 2, Name: "full_name", Type: "character varying", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 3, Name: "phone", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 4, Name: "avatar", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 5, Name: "email", Type: "character varying", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 6, Name: "encrypted_password", Type: "character varying", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 7, Name: "reset_password_token", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 8, Name: "reset_password_sent_at", Type: "timestamp without time zone", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 9, Name: "remember_created_at", Type: "timestamp without time zone", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 10, Name: "created_at", Type: "timestamp without time zone", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 11, Name: "updated_at", Type: "timestamp without time zone", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)}},
[]*DBColumn{
&DBColumn{ID: 1, Name: "id", Type: "bigint", NotNull: true, PrimaryKey: true, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 2, Name: "name", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 3, Name: "description", Type: "text", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 4, Name: "price", Type: "numeric(7,2)", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 5, Name: "user_id", Type: "bigint", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "users", FKeyColID: []int{1}},
&DBColumn{ID: 6, Name: "created_at", Type: "timestamp without time zone", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 7, Name: "updated_at", Type: "timestamp without time zone", NotNull: true, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)}},
[]*DBColumn{
&DBColumn{ID: 1, Name: "id", Type: "bigint", NotNull: true, PrimaryKey: true, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 2, Name: "customer_id", Type: "bigint", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "customers", FKeyColID: []int{1}},
&DBColumn{ID: 3, Name: "product_id", Type: "bigint", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "products", FKeyColID: []int{1}},
&DBColumn{ID: 4, Name: "sale_type", Type: "character varying", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 5, Name: "quantity", Type: "integer", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 6, Name: "due_date", Type: "timestamp without time zone", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)},
&DBColumn{ID: 7, Name: "returned", Type: "timestamp without time zone", NotNull: false, PrimaryKey: false, Uniquekey: false, FKeyTable: "", FKeyColID: []int(nil)}},
}
schema := initSchema()
for i, t := range tables {
updateSchema(schema, t, columns[i])
}
vars := NewVariables(map[string]string{
"account_id": "select account_id from users where id = $user_id",
})
pcompile = NewCompiler(schema, vars)
os.Exit(m.Run())
}
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func compileGQLToPSQL(gql string) (string, error) {
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qc, err := qcompile.CompileQuery(gql)
if err != nil {
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return "", err
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}
var sqlStmt strings.Builder
if err := pcompile.Compile(&sqlStmt, qc); err != nil {
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return "", err
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}
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return sqlStmt.String(), nil
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}
func TestCompileGQLWithArgs(t *testing.T) {
gql := `query {
products(
# returns only 30 items
limit: 30,
# starts from item 10, commented out for now
# offset: 10,
# orders the response items by highest price
order_by: { price: desc },
# no duplicate prices returned
distinct: [ price ]
# only items with an id >= 30 and < 30 are returned
where: { id: { and: { greater_or_equals: 20, lt: 28 } } }) {
id
name
price
}
}`
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sql := `SELECT json_object_agg('products', products) FROM (SELECT coalesce(json_agg("products" ORDER BY "products_0.ob.price" DESC), '[]') AS "products" FROM (SELECT DISTINCT ON ("products_0.ob.price") row_to_json((SELECT "sel_0" FROM (SELECT "products_0"."id" AS "id", "products_0"."name" AS "name", "products_0"."price" AS "price") AS "sel_0")) AS "products", "products_0"."price" AS "products_0.ob.price" FROM (SELECT "products"."id", "products"."name", "products"."price" FROM "products" WHERE ((("products"."id") < (28)) AND (("products"."id") >= (20)) ) LIMIT ('30') :: integer) AS "products_0" ORDER BY "products_0.ob.price" DESC LIMIT ('30') :: integer) AS "products_0") AS "done_1337";`
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resSQL, err := compileGQLToPSQL(gql)
if err != nil {
t.Fatal(err)
}
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if resSQL != sql {
t.Fatal(errNotExpected)
}
}
func TestCompileGQLOneToMany(t *testing.T) {
gql := `query {
users {
email
products {
name
price
}
}
}`
sql := `SELECT json_object_agg('users', users) FROM (SELECT coalesce(json_agg("users"), '[]') AS "users" FROM (SELECT row_to_json((SELECT "sel_0" FROM (SELECT "users_0"."email" AS "email", "products_1.join"."products" AS "products") AS "sel_0")) AS "users" FROM (SELECT "users"."email", "users"."id" FROM "users" WHERE ((("users"."id") = ('{{user_id}}')) ) LIMIT ('20') :: integer) AS "users_0" LEFT OUTER JOIN LATERAL (SELECT coalesce(json_agg("products"), '[]') AS "products" FROM (SELECT row_to_json((SELECT "sel_1" FROM (SELECT "products_1"."name" AS "name", "products_1"."price" AS "price") AS "sel_1")) AS "products" FROM (SELECT "products"."name", "products"."price" FROM "products" WHERE ( (("products"."user_id") = ("users_0"."id")) ) LIMIT ('20') :: integer) AS "products_1" LIMIT ('20') :: integer) AS "products_1") AS "products_1.join" ON ('true') LIMIT ('20') :: integer) AS "users_0") AS "done_1337";`
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resSQL, err := compileGQLToPSQL(gql)
if err != nil {
t.Fatal(err)
}
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if resSQL != sql {
t.Fatal(errNotExpected)
}
}
func TestCompileGQLBelongTo(t *testing.T) {
gql := `query {
products {
name
price
users {
email
}
}
}`
sql := `SELECT json_object_agg('products', products) FROM (SELECT coalesce(json_agg("products"), '[]') AS "products" FROM (SELECT row_to_json((SELECT "sel_0" FROM (SELECT "products_0"."name" AS "name", "products_0"."price" AS "price", "users_1.join"."users" AS "users") AS "sel_0")) AS "products" FROM (SELECT "products"."name", "products"."price", "products"."user_id" FROM "products" LIMIT ('20') :: integer) AS "products_0" LEFT OUTER JOIN LATERAL (SELECT coalesce(json_agg("users"), '[]') AS "users" FROM (SELECT row_to_json((SELECT "sel_1" FROM (SELECT "users_1"."email" AS "email") AS "sel_1")) AS "users" FROM (SELECT "users"."email" FROM "users" WHERE ( (("users"."id") = ("products_0"."user_id")) ) LIMIT ('20') :: integer) AS "users_1" LIMIT ('20') :: integer) AS "users_1") AS "users_1.join" ON ('true') LIMIT ('20') :: integer) AS "products_0") AS "done_1337";`
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resSQL, err := compileGQLToPSQL(gql)
if err != nil {
t.Fatal(err)
}
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if resSQL != sql {
t.Fatal(errNotExpected)
}
}
func TestCompileGQLManyToMany(t *testing.T) {
gql := `query {
products {
name
customers {
email
full_name
}
}
}`
sql := `SELECT json_object_agg('products', products) FROM (SELECT coalesce(json_agg("products"), '[]') AS "products" FROM (SELECT row_to_json((SELECT "sel_0" FROM (SELECT "products_0"."name" AS "name", "customers_1.join"."customers" AS "customers") AS "sel_0")) AS "products" FROM (SELECT "products"."name", "products"."id" FROM "products" LIMIT ('20') :: integer) AS "products_0" LEFT OUTER JOIN LATERAL (SELECT coalesce(json_agg("customers"), '[]') AS "customers" FROM (SELECT row_to_json((SELECT "sel_1" FROM (SELECT "customers_1"."email" AS "email", "customers_1"."full_name" AS "full_name") AS "sel_1")) AS "customers" FROM (SELECT "customers"."email", "customers"."full_name" FROM "customers" LEFT OUTER JOIN "purchases" ON (("purchases"."product_id") = ("products_0"."id")) WHERE ( (("customers"."id") = ("purchases"."customer_id")) ) LIMIT ('20') :: integer) AS "customers_1" LIMIT ('20') :: integer) AS "customers_1") AS "customers_1.join" ON ('true') LIMIT ('20') :: integer) AS "products_0") AS "done_1337";`
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resSQL, err := compileGQLToPSQL(gql)
if err != nil {
t.Fatal(err)
}
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if resSQL != sql {
t.Fatal(errNotExpected)
}
}
func TestCompileGQLManyToManyReverse(t *testing.T) {
gql := `query {
customers {
email
full_name
products {
name
}
}
}`
sql := `SELECT json_object_agg('customers', customers) FROM (SELECT coalesce(json_agg("customers"), '[]') AS "customers" FROM (SELECT row_to_json((SELECT "sel_0" FROM (SELECT "customers_0"."email" AS "email", "customers_0"."full_name" AS "full_name", "products_1.join"."products" AS "products") AS "sel_0")) AS "customers" FROM (SELECT "customers"."email", "customers"."full_name", "customers"."id" FROM "customers" LIMIT ('20') :: integer) AS "customers_0" LEFT OUTER JOIN LATERAL (SELECT coalesce(json_agg("products"), '[]') AS "products" FROM (SELECT row_to_json((SELECT "sel_1" FROM (SELECT "products_1"."name" AS "name") AS "sel_1")) AS "products" FROM (SELECT "products"."name" FROM "products" LEFT OUTER JOIN "purchases" ON (("purchases"."customer_id") = ("customers_0"."id")) WHERE ( (("products"."id") = ("purchases"."product_id")) ) LIMIT ('20') :: integer) AS "products_1" LIMIT ('20') :: integer) AS "products_1") AS "products_1.join" ON ('true') LIMIT ('20') :: integer) AS "customers_0") AS "done_1337";`
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resSQL, err := compileGQLToPSQL(gql)
if err != nil {
t.Fatal(err)
}
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if resSQL != sql {
t.Fatal(errNotExpected)
}
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}
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func BenchmarkCompileGQLToSQL(b *testing.B) {
gql := `query {
products(
# returns only 30 items
limit: 30,
# starts from item 10, commented out for now
# offset: 10,
# orders the response items by highest price
order_by: { price: desc },
# only items with an id >= 30 and < 30 are returned
where: { id: { and: { greater_or_equals: 20, lt: 28 } } }) {
id
name
price
user {
full_name
picture : avatar
}
}
}`
b.ResetTimer()
b.ReportAllocs()
for n := 0; n < b.N; n++ {
_, err := compileGQLToPSQL(gql)
if err != nil {
b.Fatal(err)
}
}
}