github.com/insionng/yougam@v0.0.0-20170714101924-2bc18d833463/libraries/Unknwon/com/math_test.go (about)

     1  // Copyright 2015 com authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License"): you may
     4  // not use this file except in compliance with the License. You may obtain
     5  // a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    11  // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
    12  // License for the specific language governing permissions and limitations
    13  // under the License.
    14  
    15  package com
    16  
    17  import (
    18  	"math"
    19  	"math/rand"
    20  	"testing"
    21  
    22  	. "github.com/insionng/yougam/libraries/smartystreets/goconvey/convey"
    23  )
    24  
    25  func Test_Pow(t *testing.T) {
    26  	Convey("Power int", t, func() {
    27  		for x := 0; x < 10; x++ {
    28  			for y := 0; y < 8; y++ {
    29  				result := PowInt(x, y)
    30  				result_float := math.Pow(float64(x), float64(y))
    31  				So(result, ShouldEqual, int(result_float))
    32  			}
    33  		}
    34  	})
    35  }
    36  
    37  func BenchmarkPow(b *testing.B) {
    38  	x := rand.Intn(100)
    39  	y := rand.Intn(6)
    40  	b.ResetTimer()
    41  	for n := 0; n < b.N; n++ {
    42  		PowInt(x, y)
    43  	}
    44  }