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58 lines
2.2 KiB
58 lines
2.2 KiB
package storage
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import (
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"os"
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"testing"
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"github.com/seaweedfs/seaweedfs/weed/storage/idx"
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"github.com/seaweedfs/seaweedfs/weed/storage/needle"
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"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
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"github.com/seaweedfs/seaweedfs/weed/storage/types"
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"github.com/stretchr/testify/assert"
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)
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func TestFirstInvalidIndex(t *testing.T) {
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dir := t.TempDir()
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v, err := NewVolume(dir, dir, "", 1, NeedleMapInMemory, &super_block.ReplicaPlacement{}, &needle.TTL{}, 0, 0, 0)
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if err != nil {
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t.Fatalf("volume creation: %v", err)
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}
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type WriteInfo struct {
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offset int64
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size int32
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}
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// initialize 20 needles then update first 10 needles
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for i := 1; i <= 30; i++ {
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n := newRandomNeedle(uint64(i))
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n.Flags = 0x08
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_, _, _, err := v.writeNeedle2(n, true, false)
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if err != nil {
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t.Fatalf("write needle %d: %v", i, err)
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}
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}
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b, err := os.ReadFile(v.IndexFileName() + ".idx")
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// base case every record is valid -> nothing is filtered
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index, err := idx.FirstInvalidIndex(b, func(key types.NeedleId, offset types.Offset, size types.Size) (bool, error) {
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return true, nil
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})
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if err != nil {
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t.Fatalf("failed to complete binary search %v", err)
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}
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assert.Equal(t, 30, index, "when every record is valid nothing should be filtered from binary search")
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index, err = idx.FirstInvalidIndex(b, func(key types.NeedleId, offset types.Offset, size types.Size) (bool, error) {
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return false, nil
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})
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assert.Equal(t, 0, index, "when every record is invalid everything should be filtered from binary search")
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index, err = idx.FirstInvalidIndex(b, func(key types.NeedleId, offset types.Offset, size types.Size) (bool, error) {
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return key < 20, nil
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})
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// needle key range from 1 to 30 so < 20 means 19 keys are valid and cutoff the bytes at 19 * 16 = 304
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assert.Equal(t, 19, index, "when every record is invalid everything should be filtered from binary search")
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index, err = idx.FirstInvalidIndex(b, func(key types.NeedleId, offset types.Offset, size types.Size) (bool, error) {
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return key <= 1, nil
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})
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// needle key range from 1 to 30 so <=1 1 means 1 key is valid and cutoff the bytes at 1 * 16 = 16
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assert.Equal(t, 1, index, "when every record is invalid everything should be filtered from binary search")
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}
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