github.com/uber/kraken@v0.1.4/lib/torrent/scheduler/buckets_test.go (about)

     1  // Copyright (c) 2016-2019 Uber Technologies, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain 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,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package scheduler
    15  
    16  import (
    17  	"testing"
    18  	"time"
    19  
    20  	"github.com/uber/kraken/utils/memsize"
    21  	"github.com/stretchr/testify/require"
    22  	"github.com/uber-go/tally"
    23  )
    24  
    25  func TestGetBucket(t *testing.T) {
    26  	tests := []struct {
    27  		desc     string
    28  		size     uint64
    29  		expected string
    30  	}{
    31  		{"below min", memsize.MB, "xsmall"},
    32  		{"above max", 30 * memsize.GB, "xxlarge"},
    33  		{"between buckets", 3 * memsize.GB, "large"},
    34  		{"exact bucket", 1 * memsize.GB, "medium"},
    35  	}
    36  	for _, test := range tests {
    37  		t.Run(test.desc, func(t *testing.T) {
    38  			require.Equal(t, test.expected, getBucket(test.size).sizeTag)
    39  		})
    40  	}
    41  }
    42  
    43  func TestBucketAddRange(t *testing.T) {
    44  	tests := []struct {
    45  		desc               string
    46  		start, stop, width time.Duration
    47  		expected           []time.Duration
    48  	}{
    49  		{"normal", 1, 4, 1, []time.Duration{1, 2, 3}},
    50  		{"single", 1, 4, 5, []time.Duration{1}},
    51  		{"none", 4, 1, 1, nil},
    52  	}
    53  	for _, test := range tests {
    54  		t.Run(test.desc, func(t *testing.T) {
    55  			b := newBucket("test", 0)
    56  			b.addRange(test.start, test.stop, test.width)
    57  			require.Equal(t, tally.DurationBuckets(test.expected), b.durations)
    58  		})
    59  	}
    60  }