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package storage
import (
"os"
"testing"
"github.com/seaweedfs/seaweedfs/weed/storage/needle"
"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
)
func TestCompactVolumeSpaceCheck(t *testing.T) {
// Create a temporary directory for testing
dir, err := os.MkdirTemp("", "seaweedfs_test")
if err != nil {
t.Fatalf("Failed to create temp dir: %v", err)
}
defer os.RemoveAll(dir)
// Create a disk location
location := &DiskLocation{
Directory: dir,
IdxDirectory: dir,
volumes: make(map[needle.VolumeId]*Volume),
}
// Create a store
store := &Store{
Locations: []*DiskLocation{location},
}
// Create a volume with some data
vid := needle.VolumeId(1)
replication, _ := super_block.NewReplicaPlacementFromString("000")
volume, err := NewVolume(dir, dir, "", vid, NeedleMapInMemory, replication, nil, 0, needle.GetCurrentVersion(), 0, 0)
if err != nil {
t.Fatalf("Failed to create volume: %v", err)
}
location.SetVolume(vid, volume)
// Test space checking logic
t.Run("InsufficientSpace", func(t *testing.T) {
// This should fail because we're testing the improved space checking
err := store.CompactVolume(vid, 0, 0, nil)
if err == nil {
t.Error("Expected compaction to fail due to insufficient space")
}
if err != nil {
t.Logf("Expected error: %v", err)
}
})
// Clean up
volume.Close()
}
func TestSpaceCalculation(t *testing.T) {
// Test the space calculation logic
testCases := []struct {
name string
volumeSize uint64
indexSize uint64
preallocate int64
expectedMinimum int64
}{
{
name: "SmallVolume",
volumeSize: 1024 * 1024, // 1MB
indexSize: 1024, // 1KB
preallocate: 0,
expectedMinimum: int64((1024*1024 + 1024) * 110 / 100), // 110% of volume+index size
},
{
name: "LargePreallocate",
volumeSize: 1024 * 1024, // 1MB
indexSize: 1024, // 1KB
preallocate: 10 * 1024 * 1024, // 10MB
expectedMinimum: int64(10 * 1024 * 1024 * 110 / 100), // 110% of preallocate
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
estimatedCompactSize := int64(tc.volumeSize + tc.indexSize)
spaceNeeded := tc.preallocate
if estimatedCompactSize > tc.preallocate {
spaceNeeded = estimatedCompactSize
}
// Add 10% safety buffer
spaceNeeded = spaceNeeded + (spaceNeeded / 10)
if spaceNeeded < tc.expectedMinimum {
t.Errorf("Space calculation incorrect: got %d, expected at least %d", spaceNeeded, tc.expectedMinimum)
}
t.Logf("Volume: %d, Index: %d, Preallocate: %d -> SpaceNeeded: %d",
tc.volumeSize, tc.indexSize, tc.preallocate, spaceNeeded)
})
}
}