seaweedfs/weed/filer2/filechunks_test.go
Chris Lu f07482382b able to update file content
having some issue when vi reports file changed.
2018-05-21 00:00:28 -07:00

147 lines
4.4 KiB
Go

package filer2
import (
"testing"
"log"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
)
func TestCompactFileChunks(t *testing.T) {
chunks := []*filer_pb.FileChunk{
{Offset:10, Size:100, FileId:"abc", Mtime:50},
{Offset:100, Size:100, FileId:"def", Mtime:100},
{Offset:200, Size:100, FileId:"ghi", Mtime:200},
{Offset:110, Size:200, FileId:"jkl", Mtime:300},
}
compacted, garbarge := CompactFileChunks(chunks)
log.Printf("Compacted: %+v", compacted)
log.Printf("Garbage : %+v", garbarge)
if len(compacted) != 3 {
t.Fatalf("unexpected compacted: %d", len(compacted))
}
if len(garbarge) != 1 {
t.Fatalf("unexpected garbarge: %d", len(garbarge))
}
}
func TestIntervalMerging(t *testing.T) {
testcases := []struct {
Chunks []*filer_pb.FileChunk
Expected []*visibleInterval
}{
// case 0: normal
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 100, Size: 100, FileId: "asdf", Mtime: 134},
{Offset: 200, Size: 100, FileId: "fsad", Mtime: 353},
},
Expected: []*visibleInterval{
{start: 0, stop: 100, fileId: "abc"},
{start: 100, stop: 200, fileId: "asdf"},
{start: 200, stop: 300, fileId: "fsad"},
},
},
// case 1: updates overwrite full chunks
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 200, FileId: "asdf", Mtime: 134},
},
Expected: []*visibleInterval{
{start: 0, stop: 200, fileId: "asdf"},
},
},
// case 2: updates overwrite part of previous chunks
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 50, FileId: "asdf", Mtime: 134},
},
Expected: []*visibleInterval{
{start: 0, stop: 50, fileId: "asdf"},
{start: 50, stop: 100, fileId: "abc"},
},
},
// case 3: updates overwrite full chunks
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 200, FileId: "asdf", Mtime: 134},
{Offset: 50, Size: 250, FileId: "xxxx", Mtime: 154},
},
Expected: []*visibleInterval{
{start: 0, stop: 50, fileId: "asdf"},
{start: 50, stop: 300, fileId: "xxxx"},
},
},
// case 4: updates far away from prev chunks
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 200, FileId: "asdf", Mtime: 134},
{Offset: 250, Size: 250, FileId: "xxxx", Mtime: 154},
},
Expected: []*visibleInterval{
{start: 0, stop: 200, fileId: "asdf"},
{start: 250, stop: 500, fileId: "xxxx"},
},
},
// case 5: updates overwrite full chunks
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 200, FileId: "asdf", Mtime: 184},
{Offset: 70, Size: 150, FileId: "abc", Mtime: 143},
{Offset: 80, Size: 100, FileId: "xxxx", Mtime: 134},
},
Expected: []*visibleInterval{
{start: 0, stop: 200, fileId: "asdf"},
{start: 200, stop: 220, fileId: "abc"},
},
},
// case 6: same updates
{
Chunks: []*filer_pb.FileChunk{
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
{Offset: 0, Size: 100, FileId: "abc", Mtime: 123},
},
Expected: []*visibleInterval{
{start: 0, stop: 100, fileId: "abc"},
},
},
}
for i, testcase := range testcases {
log.Printf("++++++++++ merged test case %d ++++++++++++++++++++", i)
intervals := nonOverlappingVisibleIntervals(testcase.Chunks)
for x, interval := range intervals {
log.Printf("test case %d, interval %d, start=%d, stop=%d, fileId=%s",
i, x, interval.start, interval.stop, interval.fileId)
if interval.start != testcase.Expected[x].start {
t.Fatalf("failed on test case %d, interval %d, start %d, expect %d",
i, x, interval.start, testcase.Expected[x].start)
}
if interval.stop != testcase.Expected[x].stop {
t.Fatalf("failed on test case %d, interval %d, stop %d, expect %d",
i, x, interval.stop, testcase.Expected[x].stop)
}
if interval.fileId != testcase.Expected[x].fileId {
t.Fatalf("failed on test case %d, interval %d, chunkId %s, expect %s",
i, x, interval.fileId, testcase.Expected[x].fileId)
}
}
if len(intervals) != len(testcase.Expected) {
t.Fatalf("failed to compact test case %d, len %d expected %d", i, len(intervals), len(testcase.Expected))
}
}
}