Files
tidb/evaluator/builtin_math_test.go
Shen Li 0841dbef9b *: Support builtin function round(X), round(X, D) (#1208)
Support builtin function round(X), round(X, D)
2016-05-07 13:38:02 +08:00

114 lines
2.6 KiB
Go

// Copyright 2015 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 evaluator
import (
. "github.com/pingcap/check"
"github.com/pingcap/tidb/util/testleak"
"github.com/pingcap/tidb/util/testutil"
"github.com/pingcap/tidb/util/types"
)
func (s *testEvaluatorSuite) TestAbs(c *C) {
defer testleak.AfterTest(c)()
tbl := []struct {
Arg interface{}
Ret interface{}
}{
{nil, nil},
{int64(1), int64(1)},
{uint64(1), uint64(1)},
{int64(-1), int64(1)},
{float64(3.14), float64(3.14)},
{float64(-3.14), float64(3.14)},
}
Dtbl := tblToDtbl(tbl)
for _, t := range Dtbl {
v, err := builtinAbs(t["Arg"], nil)
c.Assert(err, IsNil)
c.Assert(v, testutil.DatumEquals, t["Ret"][0])
}
}
func (s *testEvaluatorSuite) TestRand(c *C) {
defer testleak.AfterTest(c)()
v, err := builtinRand(make([]types.Datum, 0), nil)
c.Assert(err, IsNil)
c.Assert(v.GetFloat64(), Less, float64(1))
c.Assert(v.GetFloat64(), GreaterEqual, float64(0))
}
func (s *testEvaluatorSuite) TestPow(c *C) {
defer testleak.AfterTest(c)()
tbl := []struct {
Arg []interface{}
Ret float64
}{
{[]interface{}{1, 3}, 1},
{[]interface{}{2, 2}, 4},
{[]interface{}{4, 0.5}, 2},
{[]interface{}{4, -2}, 0.0625},
}
Dtbl := tblToDtbl(tbl)
for _, t := range Dtbl {
v, err := builtinPow(t["Arg"], nil)
c.Assert(err, IsNil)
c.Assert(v, testutil.DatumEquals, t["Ret"][0])
}
errTbl := []struct {
Arg []interface{}
}{
{[]interface{}{"test", "test"}},
{[]interface{}{nil, nil}},
{[]interface{}{1, "test"}},
{[]interface{}{1, nil}},
}
errDtbl := tblToDtbl(errTbl)
for _, t := range errDtbl {
_, err := builtinPow(t["Arg"], nil)
c.Assert(err, NotNil)
}
}
func (s *testEvaluatorSuite) TestRound(c *C) {
defer testleak.AfterTest(c)()
tbl := []struct {
Arg []interface{}
Ret float64
}{
{[]interface{}{-1.23}, -1},
{[]interface{}{-1.23, 0}, -1},
{[]interface{}{-1.58}, -2},
{[]interface{}{1.58}, 2},
{[]interface{}{1.298, 1}, 1.3},
{[]interface{}{1.298}, 1},
{[]interface{}{1.298, 0}, 1},
{[]interface{}{23.298, -1}, 20},
}
Dtbl := tblToDtbl(tbl)
for _, t := range Dtbl {
v, err := builtinRound(t["Arg"], nil)
c.Assert(err, IsNil)
c.Assert(v, testutil.DatumEquals, t["Ret"][0])
}
}