github.com/m3db/m3@v1.5.0/src/query/models/bounds_test.go (about)

     1  // Copyright (c) 2018 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package models
    22  
    23  import (
    24  	"testing"
    25  	"time"
    26  
    27  	"github.com/stretchr/testify/assert"
    28  
    29  	xtime "github.com/m3db/m3/src/x/time"
    30  )
    31  
    32  func TestBounds(t *testing.T) {
    33  	now := xtime.Now()
    34  	bounds := Bounds{
    35  		Start:    now,
    36  		Duration: 0,
    37  		StepSize: time.Minute,
    38  	}
    39  
    40  	assert.Equal(t, bounds.Steps(), 0)
    41  	_, err := bounds.TimeForIndex(0)
    42  	assert.Error(t, err, "no valid index in this block")
    43  
    44  	bounds = Bounds{
    45  		Start:    now,
    46  		Duration: time.Second,
    47  		StepSize: time.Minute,
    48  	}
    49  
    50  	assert.Equal(t, bounds.Steps(), 0)
    51  	_, err = bounds.TimeForIndex(0)
    52  	assert.Error(t, err, "no valid index in this block")
    53  
    54  	bounds = Bounds{
    55  		Start:    now,
    56  		Duration: time.Minute,
    57  		StepSize: time.Minute,
    58  	}
    59  	assert.Equal(t, bounds.Steps(), 1)
    60  	it, err := bounds.TimeForIndex(0)
    61  	assert.NoError(t, err)
    62  	assert.Equal(t, it, now)
    63  	_, err = bounds.TimeForIndex(1)
    64  	assert.Error(t, err)
    65  
    66  	b := bounds.Next(1)
    67  	assert.Equal(t, b.Start, bounds.End())
    68  	assert.Equal(t, b.StepSize, bounds.StepSize)
    69  
    70  	bounds = Bounds{
    71  		Start:    now,
    72  		Duration: 10 * time.Minute,
    73  		StepSize: time.Minute,
    74  	}
    75  	assert.Equal(t, bounds.Steps(), 10)
    76  	it, err = bounds.TimeForIndex(9)
    77  	assert.NoError(t, err)
    78  	assert.Equal(t, it, now.Add(9*bounds.StepSize))
    79  	b = bounds.Next(9)
    80  	assert.Equal(t, b.Start, now.Add(9*bounds.Duration))
    81  	assert.Equal(t, b.StepSize, bounds.StepSize)
    82  	b = b.Previous(9)
    83  	assert.Equal(t, b.Start, bounds.Start)
    84  	assert.Equal(t, b.Duration, bounds.Duration)
    85  }