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https://github.com/TECHNOFAB11/zfs-localpv.git
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b1b69ebfe7
ZFS does not create the zvol if volume size is not multiple of the volblocksize. There are use cases where customer will create a PVC with size as 5G, which will be 5 * 1000 * 1000 * 1000 bytes and this is not the multiple of default volblocksize 8k. In ZFS, volblocksize and recordsize must be power of 2 from 512B to 1M, so keeping the size in the form of Gi or Mi should be sufficient to make volsize multiple of volblocksize/recordsize. Signed-off-by: Pawan <pawan@mayadata.io>
45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
/*
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Copyright 2020 The OpenEBS Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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*/
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package driver
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestRoundOff(t *testing.T) {
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tests := map[string]struct {
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input int64
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expected int64
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}{
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"Minimum allocatable is 1Mi": {input: 1, expected: Mi},
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"roundOff to same Mi size": {input: Mi, expected: Mi},
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"roundOff to nearest Mi": {input: Mi + 1, expected: Mi * 2},
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"roundOff to same Gi size": {input: Gi, expected: Gi},
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"roundOff to nearest Gi": {input: Gi + 1, expected: Gi * 2},
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"roundOff MB size": {input: 5 * MB, expected: 5 * Mi},
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"roundOff GB size": {input: 5 * GB, expected: 5 * Gi},
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}
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for name, test := range tests {
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t.Run(name, func(t *testing.T) {
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assert.Equal(t, test.expected, getRoundedCapacity(test.input))
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})
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}
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}
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