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Expand the admin status page into an operational dashboard
4506a4d3d279556435fdd414265e7499c3dada16 · Keenan Nemetz · 14d ago · parent 2e024cc9
internal/storage/storage_test.go +79
| @@ -0,0 +1,79 @@ | |||
| 1 | package storage | ||
| 2 | |||
| 3 | import ( | ||
| 4 | "os" | ||
| 5 | "path/filepath" | ||
| 6 | "testing" | ||
| 7 | ) | ||
| 8 | |||
| 9 | func TestMeasureClassifiesAndDeduplicatesHardLinks(t *testing.T) { | ||
| 10 | t.Parallel() | ||
| 11 | root := t.TempDir() | ||
| 12 | write := func(rel string, data []byte) { | ||
| 13 | t.Helper() | ||
| 14 | path := filepath.Join(root, filepath.FromSlash(rel)) | ||
| 15 | if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil { | ||
| 16 | t.Fatal(err) | ||
| 17 | } | ||
| 18 | if err := os.WriteFile(path, data, 0o644); err != nil { | ||
| 19 | t.Fatal(err) | ||
| 20 | } | ||
| 21 | } | ||
| 22 | write("repos/demo.git/objects/aa/object", []byte("repo object")) | ||
| 23 | write("lfs/objects/aa/bb/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", []byte("large object")) | ||
| 24 | write("queue/spool/event", []byte("event")) | ||
| 25 | write("users.db", []byte("database")) | ||
| 26 | write("audit.log", []byte("log")) | ||
| 27 | |||
| 28 | before, err := Measure(root) | ||
| 29 | if err != nil { | ||
| 30 | t.Fatal(err) | ||
| 31 | } | ||
| 32 | cats := categoryMap(before) | ||
| 33 | if cats["Repositories"].Files != 1 || cats["Databases"].Files != 1 || cats["Queue"].Files != 1 { | ||
| 34 | t.Fatalf("categories = %+v", before.Categories) | ||
| 35 | } | ||
| 36 | lfsBytes := cats["LFS objects"].Bytes | ||
| 37 | if cats["LFS objects"].Files != 1 || lfsBytes == 0 { | ||
| 38 | t.Fatalf("LFS category = %+v", cats["LFS objects"]) | ||
| 39 | } | ||
| 40 | if before.Disk.Total == 0 || before.Disk.Available == 0 { | ||
| 41 | t.Fatalf("filesystem capacity = %+v", before.Disk) | ||
| 42 | } | ||
| 43 | |||
| 44 | // A repository's namespace is a hard link into the pool. It must not make the | ||
| 45 | // same bytes count twice or move them into a different category. | ||
| 46 | linked := filepath.Join(root, "lfs/repos/demo/aa/bb/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") | ||
| 47 | if err := os.MkdirAll(filepath.Dir(linked), 0o755); err != nil { | ||
| 48 | t.Fatal(err) | ||
| 49 | } | ||
| 50 | if err := os.Link(filepath.Join(root, "lfs/objects/aa/bb/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"), linked); err != nil { | ||
| 51 | t.Fatal(err) | ||
| 52 | } | ||
| 53 | after, err := Measure(root) | ||
| 54 | if err != nil { | ||
| 55 | t.Fatal(err) | ||
| 56 | } | ||
| 57 | afterCats := categoryMap(after) | ||
| 58 | if afterCats["LFS objects"].Files != 1 || afterCats["LFS objects"].Bytes != lfsBytes { | ||
| 59 | t.Fatalf("hard link changed LFS usage: before=%+v after=%+v", cats["LFS objects"], afterCats["LFS objects"]) | ||
| 60 | } | ||
| 61 | if after.Bytes != before.Bytes || after.Files != before.Files { | ||
| 62 | t.Fatalf("hard link changed total: before=%d/%d after=%d/%d", before.Bytes, before.Files, after.Bytes, after.Files) | ||
| 63 | } | ||
| 64 | var sum int64 | ||
| 65 | for _, c := range after.Categories { | ||
| 66 | sum += c.Bytes | ||
| 67 | } | ||
| 68 | if sum != after.Bytes { | ||
| 69 | t.Fatalf("categories sum to %d, total is %d", sum, after.Bytes) | ||
| 70 | } | ||
| 71 | } | ||
| 72 | |||
| 73 | func categoryMap(st Stats) map[string]Category { | ||
| 74 | out := make(map[string]Category, len(st.Categories)) | ||
| 75 | for _, c := range st.Categories { | ||
| 76 | out[c.Name] = c | ||
| 77 | } | ||
| 78 | return out | ||
| 79 | } | ||