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// Copyright 2017 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package expression
import (
"github.com/hanchuanchuan/goInception/ast"
"github.com/hanchuanchuan/goInception/types"
"github.com/hanchuanchuan/goInception/types/json"
"github.com/hanchuanchuan/goInception/util/chunk"
"github.com/hanchuanchuan/goInception/util/testleak"
"github.com/hanchuanchuan/goInception/util/testutil"
. "github.com/pingcap/check"
)
func (s *testEvaluatorSuite) TestJSONType(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONType]
tbl := []struct {
Input interface{}
Expected interface{}
}{
{nil, nil},
{`3`, `INTEGER`},
{`3.0`, `DOUBLE`},
{`null`, `NULL`},
{`true`, `BOOLEAN`},
{`[]`, `ARRAY`},
{`{}`, `OBJECT`},
}
dtbl := tblToDtbl(tbl)
for _, t := range dtbl {
f, err := fc.getFunction(s.ctx, s.datumsToConstants(t["Input"]))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
c.Assert(err, IsNil)
c.Assert(d, testutil.DatumEquals, t["Expected"][0])
}
}
func (s *testEvaluatorSuite) TestJSONUnquote(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONUnquote]
tbl := []struct {
Input interface{}
Expected interface{}
}{
{nil, nil},
{``, ``},
{`""`, ``},
{`''`, `''`},
{`"a"`, `a`},
{`3`, `3`},
{`{"a": "b"}`, `{"a": "b"}`},
{`{"a": "b"}`, `{"a": "b"}`},
{`"hello,\"quoted string\",world"`, `hello,"quoted string",world`},
{`"hello,\"宽字符\",world"`, `hello,"宽字符",world`},
{`Invalid Json string\tis OK`, `Invalid Json string is OK`},
{`"1\\u2232\\u22322"`, `1\u2232\u22322`},
}
dtbl := tblToDtbl(tbl)
for _, t := range dtbl {
f, err := fc.getFunction(s.ctx, s.datumsToConstants(t["Input"]))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
c.Assert(err, IsNil)
c.Assert(d, testutil.DatumEquals, t["Expected"][0])
}
}
func (s *testEvaluatorSuite) TestJSONExtract(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONExtract]
jstr := `{"a": [{"aa": [{"aaa": 1}]}], "aaa": 2}`
tbl := []struct {
Input []interface{}
Expected interface{}
Success bool
}{
{[]interface{}{nil, nil}, nil, true},
{[]interface{}{jstr, `$.a[0].aa[0].aaa`, `$.aaa`}, `[1, 2]`, true},
{[]interface{}{jstr, `$.a[0].aa[0].aaa`, `$InvalidPath`}, nil, false},
}
for _, t := range tbl {
args := types.MakeDatums(t.Input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
if t.Success {
c.Assert(err, IsNil)
switch x := t.Expected.(type) {
case string:
var j1 json.BinaryJSON
j1, err = json.ParseBinaryFromString(x)
c.Assert(err, IsNil)
j2 := d.GetMysqlJSON()
var cmp int
cmp = json.CompareBinary(j1, j2)
c.Assert(err, IsNil)
c.Assert(cmp, Equals, 0)
}
} else {
c.Assert(err, NotNil)
}
}
}
// TestJSONSetInsertReplace tests grammar of json_{set,insert,replace}.
func (s *testEvaluatorSuite) TestJSONSetInsertReplace(c *C) {
defer testleak.AfterTest(c)()
tbl := []struct {
fc functionClass
Input []interface{}
Expected interface{}
BuildSuccess bool
Success bool
}{
{funcs[ast.JSONSet], []interface{}{nil, nil, nil}, nil, true, true},
{funcs[ast.JSONSet], []interface{}{`{}`, `$.a`, 3}, `{"a": 3}`, true, true},
{funcs[ast.JSONInsert], []interface{}{`{}`, `$.a`, 3}, `{"a": 3}`, true, true},
{funcs[ast.JSONReplace], []interface{}{`{}`, `$.a`, 3}, `{}`, true, true},
{funcs[ast.JSONSet], []interface{}{`{}`, `$.a`, 3, `$.b`, "3"}, `{"a": 3, "b": "3"}`, true, true},
{funcs[ast.JSONSet], []interface{}{`{}`, `$.a`, nil, `$.b`, "nil"}, `{"a": null, "b": "nil"}`, true, true},
{funcs[ast.JSONSet], []interface{}{`{}`, `$.a`, 3, `$.b`}, nil, false, false},
{funcs[ast.JSONSet], []interface{}{`{}`, `$InvalidPath`, 3}, nil, true, false},
}
var err error
var f builtinFunc
var d types.Datum
for _, t := range tbl {
args := types.MakeDatums(t.Input...)
f, err = t.fc.getFunction(s.ctx, s.datumsToConstants(args))
if t.BuildSuccess {
c.Assert(err, IsNil)
d, err = evalBuiltinFunc(f, chunk.Row{})
if t.Success {
c.Assert(err, IsNil)
switch x := t.Expected.(type) {
case string:
var j1 json.BinaryJSON
j1, err = json.ParseBinaryFromString(x)
c.Assert(err, IsNil)
j2 := d.GetMysqlJSON()
var cmp int
cmp = json.CompareBinary(j1, j2)
c.Assert(cmp, Equals, 0)
}
continue
}
}
c.Assert(err, NotNil)
}
}
func (s *testEvaluatorSuite) TestJSONMerge(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONMerge]
tbl := []struct {
Input []interface{}
Expected interface{}
}{
{[]interface{}{nil, nil}, nil},
{[]interface{}{`{}`, `[]`}, `[{}]`},
{[]interface{}{`{}`, `[]`, `3`, `"4"`}, `[{}, 3, "4"]`},
}
for _, t := range tbl {
args := types.MakeDatums(t.Input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
c.Assert(err, IsNil)
switch x := t.Expected.(type) {
case string:
j1, err := json.ParseBinaryFromString(x)
c.Assert(err, IsNil)
j2 := d.GetMysqlJSON()
cmp := json.CompareBinary(j1, j2)
c.Assert(cmp, Equals, 0, Commentf("got %v expect %v", j1.String(), j2.String()))
}
}
}
func (s *testEvaluatorSuite) TestJSONArray(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONArray]
tbl := []struct {
Input []interface{}
Expected string
}{
{[]interface{}{1}, `[1]`},
{[]interface{}{nil, "a", 3, `{"a": "b"}`}, `[null, "a", 3, "{\"a\": \"b\"}"]`},
}
for _, t := range tbl {
args := types.MakeDatums(t.Input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
c.Assert(err, IsNil)
j1, err := json.ParseBinaryFromString(t.Expected)
c.Assert(err, IsNil)
j2 := d.GetMysqlJSON()
cmp := json.CompareBinary(j1, j2)
c.Assert(cmp, Equals, 0)
}
}
func (s *testEvaluatorSuite) TestJSONObject(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONObject]
tbl := []struct {
Input []interface{}
Expected interface{}
BuildSuccess bool
Success bool
}{
{[]interface{}{1, 2, 3}, nil, false, false},
{[]interface{}{1, 2, "hello", nil}, `{"1": 2, "hello": null}`, true, true},
{[]interface{}{nil, 2}, nil, true, false},
// TiDB can only tell booleans from parser.
{[]interface{}{1, true}, `{"1": 1}`, true, true},
}
var err error
var f builtinFunc
var d types.Datum
for _, t := range tbl {
args := types.MakeDatums(t.Input...)
f, err = fc.getFunction(s.ctx, s.datumsToConstants(args))
if t.BuildSuccess {
c.Assert(err, IsNil)
d, err = evalBuiltinFunc(f, chunk.Row{})
if t.Success {
c.Assert(err, IsNil)
switch x := t.Expected.(type) {
case string:
var j1 json.BinaryJSON
j1, err = json.ParseBinaryFromString(x)
c.Assert(err, IsNil)
j2 := d.GetMysqlJSON()
var cmp int
cmp = json.CompareBinary(j1, j2)
c.Assert(cmp, Equals, 0)
}
continue
}
}
c.Assert(err, NotNil)
}
}
func (s *testEvaluatorSuite) TestJSONRemove(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONRemove]
tbl := []struct {
Input []interface{}
Expected interface{}
Success bool
}{
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.*"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$[*]"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$**.a"}, nil, false},
{[]interface{}{nil, "$.a"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[2].aa"}, `{"a": [1, 2, {}]}`, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[1]"}, `{"a": [1, {"aa": "xx"}]}`, true},
// Tests multi path expressions.
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[2].aa", "$.a[1]"}, `{"a": [1, {}]}`, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[1]", "$.a[1].aa"}, `{"a": [1, {}]}`, true},
// Tests path expressions not exists.
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[3]"}, `{"a": [1, 2, {"aa": "xx"}]}`, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.b"}, `{"a": [1, 2, {"aa": "xx"}]}`, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[3]", "$.b"}, `{"a": [1, 2, {"aa": "xx"}]}`, true},
}
for _, t := range tbl {
args := types.MakeDatums(t.Input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
if t.Success {
c.Assert(err, IsNil)
switch x := t.Expected.(type) {
case string:
var j1 json.BinaryJSON
j1, err = json.ParseBinaryFromString(x)
c.Assert(err, IsNil)
j2 := d.GetMysqlJSON()
var cmp int
cmp = json.CompareBinary(j1, j2)
c.Assert(cmp, Equals, 0, Commentf("got %v expect %v", j2.Value, j1.Value))
}
} else {
c.Assert(err, NotNil)
}
}
}
func (s *testEvaluatorSuite) TestJSONContains(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONContains]
tbl := []struct {
input []interface{}
expected interface{}
success bool
}{
// Tests nil arguments
{[]interface{}{nil, `1`, "$.c"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, nil, "$.a[3]"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, nil}, nil, true},
// Tests with path expression
{[]interface{}{`[1,2,[1,[5,[3]]]]`, `[1,3]`, "$[2]"}, 1, true},
{[]interface{}{`[1,2,[1,[5,{"a":[2,3]}]]]`, `[1,{"a":[3]}]`, "$[2]"}, 1, true},
{[]interface{}{`[{"a":1}]`, `{"a":1}`, "$"}, 1, true},
{[]interface{}{`[{"a":1,"b":2}]`, `{"a":1,"b":2}`, "$"}, 1, true},
{[]interface{}{`[{"a":{"a":1},"b":2}]`, `{"a":1}`, "$.a"}, 0, true},
// Tests without path expression
{[]interface{}{`{}`, `{}`}, 1, true},
{[]interface{}{`{"a":1}`, `{}`}, 1, true},
{[]interface{}{`{"a":1}`, `1`}, 0, true},
{[]interface{}{`{"a":[1]}`, `[1]`}, 0, true},
{[]interface{}{`{"b":2, "c":3}`, `{"c":3}`}, 1, true},
{[]interface{}{`1`, `1`}, 1, true},
{[]interface{}{`[1]`, `1`}, 1, true},
{[]interface{}{`[1,2]`, `[1]`}, 1, true},
{[]interface{}{`[1,2]`, `[1,3]`}, 0, true},
{[]interface{}{`[1,2]`, `["1"]`}, 0, true},
{[]interface{}{`[1,2,[1,3]]`, `[1,3]`}, 1, true},
{[]interface{}{`[1,2,[1,[5,[3]]]]`, `[1,3]`}, 1, true},
{[]interface{}{`[1,2,[1,[5,{"a":[2,3]}]]]`, `[1,{"a":[3]}]`}, 1, true},
{[]interface{}{`[{"a":1}]`, `{"a":1}`}, 1, true},
{[]interface{}{`[{"a":1,"b":2}]`, `{"a":1}`}, 1, true},
{[]interface{}{`[{"a":{"a":1},"b":2}]`, `{"a":1}`}, 0, true},
// Tests path expression contains any asterisk
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, "$.*"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, "$[*]"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, "$**.a"}, nil, false},
// Tests path expression does not identify a section of the target document
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, "$.c"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, "$.a[3]"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, `1`, "$.a[2].b"}, nil, true},
}
for _, t := range tbl {
args := types.MakeDatums(t.input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
if t.success {
c.Assert(err, IsNil)
if t.expected == nil {
c.Assert(d.IsNull(), IsTrue)
} else {
c.Assert(d.GetInt64(), Equals, int64(t.expected.(int)))
}
} else {
c.Assert(err, NotNil)
}
}
}
func (s *testEvaluatorSuite) TestJSONContainsPath(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONContainsPath]
jsonString := `{"a": 1, "b": 2, "c": {"d": 4}}`
invalidJSON := `{"a": 1`
tbl := []struct {
input []interface{}
expected interface{}
success bool
}{
// Tests nil arguments
{[]interface{}{nil, json.ContainsPathOne, "$.c"}, nil, true},
{[]interface{}{nil, json.ContainsPathAll, "$.c"}, nil, true},
{[]interface{}{jsonString, nil, "$.a[3]"}, nil, true},
{[]interface{}{jsonString, json.ContainsPathOne, nil}, nil, true},
{[]interface{}{jsonString, json.ContainsPathAll, nil}, nil, true},
// Tests with one path expression
{[]interface{}{jsonString, json.ContainsPathOne, "$.c.d"}, 1, true},
{[]interface{}{jsonString, json.ContainsPathOne, "$.a.d"}, 0, true},
{[]interface{}{jsonString, json.ContainsPathAll, "$.c.d"}, 1, true},
{[]interface{}{jsonString, json.ContainsPathAll, "$.a.d"}, 0, true},
// Tests with multiple path expression
{[]interface{}{jsonString, json.ContainsPathOne, "$.a", "$.e"}, 1, true},
{[]interface{}{jsonString, json.ContainsPathOne, "$.a", "$.c"}, 1, true},
{[]interface{}{jsonString, json.ContainsPathAll, "$.a", "$.e"}, 0, true},
{[]interface{}{jsonString, json.ContainsPathAll, "$.a", "$.c"}, 1, true},
// Tests path expression contains any asterisk
{[]interface{}{jsonString, json.ContainsPathOne, "$.*"}, 1, true},
{[]interface{}{jsonString, json.ContainsPathOne, "$[*]"}, 0, true},
{[]interface{}{jsonString, json.ContainsPathAll, "$.*"}, 1, true},
{[]interface{}{jsonString, json.ContainsPathAll, "$[*]"}, 0, true},
// Tests invalid json document
{[]interface{}{invalidJSON, json.ContainsPathOne, "$.a"}, nil, false},
{[]interface{}{invalidJSON, json.ContainsPathAll, "$.a"}, nil, false},
}
for _, t := range tbl {
args := types.MakeDatums(t.input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
if t.success {
c.Assert(err, IsNil)
if t.expected == nil {
c.Assert(d.IsNull(), IsTrue)
} else {
c.Assert(d.GetInt64(), Equals, int64(t.expected.(int)))
}
} else {
c.Assert(err, NotNil)
}
}
}
func (s *testEvaluatorSuite) TestJSONLength(c *C) {
defer testleak.AfterTest(c)()
fc := funcs[ast.JSONLength]
tbl := []struct {
input []interface{}
expected interface{}
success bool
}{
// Tests scalar arguments
{[]interface{}{`null`}, 1, true},
{[]interface{}{`true`}, 1, true},
{[]interface{}{`false`}, 1, true},
{[]interface{}{`1`}, 1, true},
{[]interface{}{`-1`}, 1, true},
{[]interface{}{`1.1`}, 1, true},
{[]interface{}{`"1"`}, 1, true},
{[]interface{}{`"1"`, "$.a"}, 1, true},
{[]interface{}{`null`, "$.a"}, 1, true},
// Tests nil arguments
{[]interface{}{nil}, nil, true},
{[]interface{}{nil, "a"}, nil, true},
{[]interface{}{`{"a": 1}`, nil}, nil, true},
{[]interface{}{nil, nil}, nil, true},
// Tests with path expression
{[]interface{}{`[1,2,[1,[5,[3]]]]`, "$[2]"}, 2, true},
{[]interface{}{`[{"a":1}]`, "$"}, 1, true},
{[]interface{}{`[{"a":1,"b":2}]`, "$[0].a"}, 1, true},
{[]interface{}{`{"a":{"a":1},"b":2}`, "$"}, 2, true},
{[]interface{}{`{"a":{"a":1},"b":2}`, "$.a"}, 1, true},
{[]interface{}{`{"a":{"a":1},"b":2}`, "$.a.a"}, 1, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[2].aa"}, 1, true},
// Tests without path expression
{[]interface{}{`{}`}, 0, true},
{[]interface{}{`{"a":1}`}, 1, true},
{[]interface{}{`{"a":[1]}`}, 1, true},
{[]interface{}{`{"b":2, "c":3}`}, 2, true},
{[]interface{}{`[1]`}, 1, true},
{[]interface{}{`[1,2]`}, 2, true},
{[]interface{}{`[1,2,[1,3]]`}, 3, true},
{[]interface{}{`[1,2,[1,[5,[3]]]]`}, 3, true},
{[]interface{}{`[1,2,[1,[5,{"a":[2,3]}]]]`}, 3, true},
{[]interface{}{`[{"a":1}]`}, 1, true},
{[]interface{}{`[{"a":1,"b":2}]`}, 1, true},
{[]interface{}{`[{"a":{"a":1},"b":2}]`}, 1, true},
// Tests path expression contains any asterisk
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.*"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$[*]"}, nil, false},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$**.a"}, nil, false},
// Tests path expression does not identify a section of the target document
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.c"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[3]"}, nil, true},
{[]interface{}{`{"a": [1, 2, {"aa": "xx"}]}`, "$.a[2].b"}, nil, true},
}
for _, t := range tbl {
args := types.MakeDatums(t.input...)
f, err := fc.getFunction(s.ctx, s.datumsToConstants(args))
c.Assert(err, IsNil)
d, err := evalBuiltinFunc(f, chunk.Row{})
if t.success {
c.Assert(err, IsNil)
if t.expected == nil {
c.Assert(d.IsNull(), IsTrue)
} else {
c.Assert(d.GetInt64(), Equals, int64(t.expected.(int)))
}
} else {
c.Assert(err, NotNil)
}
}
}
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