41 lines
2 KiB
Go
41 lines
2 KiB
Go
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package chunksize
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import (
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"testing"
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"time"
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"github.com/rclone/rclone/fs"
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"github.com/rclone/rclone/fs/object"
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)
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func TestComputeChunkSize(t *testing.T) {
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tests := map[string]struct {
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fileSize fs.SizeSuffix
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maxParts int
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defaultChunkSize fs.SizeSuffix
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expected fs.SizeSuffix
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}{
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"default size returned when file size is small enough": {fileSize: 1000, maxParts: 10000, defaultChunkSize: toSizeSuffixMiB(10), expected: toSizeSuffixMiB(10)},
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"default size returned when file size is just 1 byte small enough": {fileSize: toSizeSuffixMiB(100000) - 1, maxParts: 10000, defaultChunkSize: toSizeSuffixMiB(10), expected: toSizeSuffixMiB(10)},
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"no rounding up when everything divides evenly": {fileSize: toSizeSuffixMiB(1000000), maxParts: 10000, defaultChunkSize: toSizeSuffixMiB(100), expected: toSizeSuffixMiB(100)},
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"rounding up to nearest MiB when not quite enough parts": {fileSize: toSizeSuffixMiB(1000000), maxParts: 9999, defaultChunkSize: toSizeSuffixMiB(100), expected: toSizeSuffixMiB(101)},
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"rounding up to nearest MiB when one extra byte": {fileSize: toSizeSuffixMiB(1000000) + 1, maxParts: 10000, defaultChunkSize: toSizeSuffixMiB(100), expected: toSizeSuffixMiB(101)},
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"expected MiB value when rounding sets to absolute minimum": {fileSize: toSizeSuffixMiB(1) - 1, maxParts: 1, defaultChunkSize: toSizeSuffixMiB(1), expected: toSizeSuffixMiB(1)},
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"expected MiB value when rounding to absolute min with extra": {fileSize: toSizeSuffixMiB(1) + 1, maxParts: 1, defaultChunkSize: toSizeSuffixMiB(1), expected: toSizeSuffixMiB(2)},
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}
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for name, tc := range tests {
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t.Run(name, func(t *testing.T) {
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src := object.NewStaticObjectInfo("mock", time.Now(), int64(tc.fileSize), true, nil, nil)
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result := Calculator(src, tc.maxParts, tc.defaultChunkSize)
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if result != tc.expected {
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t.Fatalf("expected: %v, got: %v", tc.expected, result)
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}
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})
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}
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}
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func toSizeSuffixMiB(size int64) fs.SizeSuffix {
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return fs.SizeSuffix(size * int64(fs.Mebi))
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}
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