354 lines
8.3 KiB
Go
354 lines
8.3 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package expression
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import (
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/ast"
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"github.com/pingcap/tidb/util/testleak"
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"github.com/pingcap/tidb/util/testutil"
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"github.com/pingcap/tidb/util/types"
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)
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func (s *testEvaluatorSuite) TestAbs(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg interface{}
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Ret interface{}
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}{
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{nil, nil},
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{int64(1), int64(1)},
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{uint64(1), uint64(1)},
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{int64(-1), int64(1)},
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{float64(3.14), float64(3.14)},
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{float64(-3.14), float64(3.14)},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Abs]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, testutil.DatumEquals, t["Ret"][0])
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}
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}
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func (s *testEvaluatorSuite) TestCeil(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg interface{}
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Ret interface{}
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}{
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{nil, nil},
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{int64(1), int64(1)},
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{float64(1.23), float64(2)},
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{float64(-1.23), float64(-1)},
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{"1.23", float64(2)},
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{"-1.23", float64(-1)},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Ceil]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, DeepEquals, t["Ret"][0], Commentf("arg:%v", t["Arg"]))
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}
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}
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func (s *testEvaluatorSuite) TestFloor(c *C) {
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defer testleak.AfterTest(c)()
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for _, t := range []struct {
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num interface{}
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ret interface{}
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err Checker
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}{
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{nil, nil, IsNil},
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{int64(1), int64(1), IsNil},
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{float64(1.23), float64(1), IsNil},
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{float64(-1.23), float64(-2), IsNil},
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{"1.23", float64(1), IsNil},
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{"-1.23", float64(-2), IsNil},
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{"-1.b23", float64(-1), IsNil},
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{"abce", float64(0), IsNil},
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} {
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fc := funcs[ast.Floor]
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f, err := fc.getFunction(datumsToConstants(types.MakeDatums(t.num)), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, t.err)
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c.Assert(v, testutil.DatumEquals, types.NewDatum(t.ret))
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}
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}
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func (s *testEvaluatorSuite) TestLog(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg []interface{}
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Ret interface{}
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}{
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{[]interface{}{int64(2)}, float64(0.6931471805599453)},
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{[]interface{}{int64(2), int64(65536)}, float64(16)},
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{[]interface{}{int64(10), int64(100)}, float64(2)},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Log]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, DeepEquals, t["Ret"][0], Commentf("arg:%v", t["Arg"]))
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}
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nullTbl := []struct {
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Arg []interface{}
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}{
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{[]interface{}{int64(-2)}},
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{[]interface{}{int64(1), int64(100)}},
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}
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nullDtbl := tblToDtbl(nullTbl)
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for _, t := range nullDtbl {
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fc := funcs[ast.Log]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v.Kind(), Equals, types.KindNull)
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}
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}
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func (s *testEvaluatorSuite) TestRand(c *C) {
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defer testleak.AfterTest(c)()
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fc := funcs[ast.Rand]
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f, err := fc.getFunction(nil, s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v.GetFloat64(), Less, float64(1))
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c.Assert(v.GetFloat64(), GreaterEqual, float64(0))
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}
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func (s *testEvaluatorSuite) TestPow(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg []interface{}
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Ret float64
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}{
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{[]interface{}{1, 3}, 1},
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{[]interface{}{2, 2}, 4},
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{[]interface{}{4, 0.5}, 2},
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{[]interface{}{4, -2}, 0.0625},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Pow]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, testutil.DatumEquals, t["Ret"][0])
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}
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errTbl := []struct {
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Arg []interface{}
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}{
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{[]interface{}{"test", "test"}},
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{[]interface{}{nil, nil}},
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{[]interface{}{1, "test"}},
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{[]interface{}{1, nil}},
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}
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errDtbl := tblToDtbl(errTbl)
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for _, t := range errDtbl {
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fc := funcs[ast.Pow]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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_, err = f.eval(nil)
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c.Assert(err, NotNil)
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}
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}
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func (s *testEvaluatorSuite) TestRound(c *C) {
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defer testleak.AfterTest(c)()
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newDec := types.NewDecFromStringForTest
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tbl := []struct {
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Arg []interface{}
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Ret interface{}
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}{
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{[]interface{}{-1.23}, -1},
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{[]interface{}{-1.23, 0}, -1},
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{[]interface{}{-1.58}, -2},
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{[]interface{}{1.58}, 2},
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{[]interface{}{1.298, 1}, 1.3},
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{[]interface{}{1.298}, 1},
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{[]interface{}{1.298, 0}, 1},
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{[]interface{}{23.298, -1}, 20},
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{[]interface{}{newDec("-1.23")}, newDec("-1")},
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{[]interface{}{newDec("-1.23"), 1}, newDec("-1.2")},
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{[]interface{}{newDec("-1.58")}, newDec("-2")},
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{[]interface{}{newDec("1.58")}, newDec("2")},
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{[]interface{}{newDec("1.58"), 1}, newDec("1.6")},
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{[]interface{}{newDec("23.298"), -1}, newDec("20")},
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{[]interface{}{nil, 2}, nil},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Round]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, testutil.DatumEquals, t["Ret"][0])
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}
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}
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func (s *testEvaluatorSuite) TestCRC32(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg []interface{}
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Ret uint64
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}{
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{[]interface{}{"mysql"}, 2501908538},
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{[]interface{}{"MySQL"}, 3259397556},
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{[]interface{}{"hello"}, 907060870},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.CRC32]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, testutil.DatumEquals, t["Ret"][0])
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}
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}
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func (s *testEvaluatorSuite) TestConv(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg []interface{}
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Ret interface{}
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}{
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{[]interface{}{"a", 16, 2}, "1010"},
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{[]interface{}{"6E", 18, 8}, "172"},
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{[]interface{}{"-17", 10, -18}, "-H"},
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{[]interface{}{"-17", 10, 18}, "2D3FGB0B9CG4BD1H"},
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{[]interface{}{nil, 10, 10}, nil},
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{[]interface{}{"+18aZ", 7, 36}, 1},
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{[]interface{}{"18446744073709551615", -10, 16}, "7FFFFFFFFFFFFFFF"},
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{[]interface{}{"12F", -10, 16}, "C"},
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{[]interface{}{" FF ", 16, 10}, "255"},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Conv]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, testutil.DatumEquals, t["Ret"][0])
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}
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v := []struct {
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s string
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base int64
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ret string
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}{
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{"-123456D1f", 5, "-1234"},
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{"+12azD", 16, "12a"},
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{"+", 12, ""},
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}
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for _, t := range v {
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r := getValidPrefix(t.s, t.base)
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c.Assert(r, Equals, t.ret)
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}
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}
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func (s *testEvaluatorSuite) TestSign(c *C) {
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defer testleak.AfterTest(c)()
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for _, t := range []struct {
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num interface{}
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ret interface{}
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err Checker
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}{
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{nil, nil, IsNil},
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{1, 1, IsNil},
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{0, 0, IsNil},
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{-1, -1, IsNil},
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{0.4, 1, IsNil},
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{-0.4, -1, IsNil},
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{"1", 1, IsNil},
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{"-1", -1, IsNil},
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{"1a", 1, NotNil},
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{"-1a", -1, NotNil},
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{"a", 0, NotNil},
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{uint64(9223372036854775808), 1, IsNil},
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} {
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fc := funcs[ast.Sign]
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f, err := fc.getFunction(datumsToConstants(types.MakeDatums(t.num)), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, t.err)
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c.Assert(v, testutil.DatumEquals, types.NewDatum(t.ret))
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}
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}
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func (s *testEvaluatorSuite) TestSqrt(c *C) {
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defer testleak.AfterTest(c)()
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tbl := []struct {
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Arg interface{}
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Ret interface{}
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}{
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{nil, nil},
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{int64(1), float64(1)},
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{float64(4), float64(2)},
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{"4", float64(2)},
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{"9", float64(3)},
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{"-16", nil},
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}
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Dtbl := tblToDtbl(tbl)
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for _, t := range Dtbl {
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fc := funcs[ast.Sqrt]
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f, err := fc.getFunction(datumsToConstants(t["Arg"]), s.ctx)
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c.Assert(err, IsNil)
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v, err := f.eval(nil)
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c.Assert(err, IsNil)
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c.Assert(v, DeepEquals, t["Ret"][0], Commentf("arg:%v", t["Arg"]))
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}
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}
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