| 1 | package hostbox |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "reflect" |
| 7 | "testing" |
| 8 | |
| 9 | "github.com/carlosframework/platform/internal/park" |
| 10 | ) |
| 11 | |
| 12 | type recordedLease struct { |
| 13 | name string |
| 14 | checks, releases int |
| 15 | closed int |
| 16 | checkErr, releaseErr error |
| 17 | } |
| 18 | |
| 19 | func (l *recordedLease) Check(context.Context) error { l.checks++; return l.checkErr } |
| 20 | func (l *recordedLease) Release(context.Context) error { l.releases++; return l.releaseErr } |
| 21 | func (l *recordedLease) Close() { l.closed++ } |
| 22 | |
| 23 | type recordingLeases struct { |
| 24 | names []string |
| 25 | held map[string]*recordedLease |
| 26 | failAt string |
| 27 | } |
| 28 | |
| 29 | func (l *recordingLeases) Acquire(_ context.Context, _, name string) (park.HeldLease, error) { |
| 30 | l.names = append(l.names, name) |
| 31 | if name == l.failAt { |
| 32 | return nil, errors.New("acquire failed") |
| 33 | } |
| 34 | h := &recordedLease{name: name} |
| 35 | l.held[name] = h |
| 36 | return h, nil |
| 37 | } |
| 38 | |
| 39 | func TestAggregateLeasesOrderHealthReleaseAndClose(t *testing.T) { |
| 40 | base := &recordingLeases{held: map[string]*recordedLease{}} |
| 41 | a := AggregateLeases{Leases: base, Resolve: func(context.Context, string, string) ([]string, error) { |
| 42 | return []string{"moves/h/op", "instances/h/inc", "moves/h/op"}, nil |
| 43 | }} |
| 44 | held, err := a.Acquire(t.Context(), "data", "instances/h/inc") |
| 45 | if err != nil { |
| 46 | t.Fatal(err) |
| 47 | } |
| 48 | if want := []string{"instances/h/inc", "moves/h/op"}; !reflect.DeepEqual(base.names, want) { |
| 49 | t.Fatalf("acquire order = %v, want %v", base.names, want) |
| 50 | } |
| 51 | base.held["moves/h/op"].checkErr = errors.New("lost") |
| 52 | if err := held.Check(t.Context()); err == nil || base.held["instances/h/inc"].checks != 1 || base.held["moves/h/op"].checks != 1 { |
| 53 | t.Fatalf("aggregate check = %v", err) |
| 54 | } |
| 55 | if err := held.Release(t.Context()); err != nil { |
| 56 | t.Fatal(err) |
| 57 | } |
| 58 | held.Close() |
| 59 | for name, h := range base.held { |
| 60 | if h.releases != 1 || h.closed != 1 { |
| 61 | t.Fatalf("%s: releases=%d closes=%d", name, h.releases, h.closed) |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | func TestAggregateLeasesPartialAcquireUnwindsOnlyAcquired(t *testing.T) { |
| 67 | base := &recordingLeases{held: map[string]*recordedLease{}, failAt: "b"} |
| 68 | a := AggregateLeases{Leases: base, Resolve: func(context.Context, string, string) ([]string, error) { |
| 69 | return []string{"scope", "b", "a"}, nil |
| 70 | }} |
| 71 | if _, err := a.Acquire(t.Context(), "data", "scope"); err == nil { |
| 72 | t.Fatal("acquire succeeded") |
| 73 | } |
| 74 | if want := []string{"a", "b"}; !reflect.DeepEqual(base.names, want) { |
| 75 | t.Fatalf("attempts = %v, want %v", base.names, want) |
| 76 | } |
| 77 | if h := base.held["a"]; h.releases != 1 || h.closed != 1 { |
| 78 | t.Fatalf("acquired lease not unwound: %+v", h) |
| 79 | } |
| 80 | if _, ok := base.held["scope"]; ok { |
| 81 | t.Fatal("unattempted lease was acquired") |
| 82 | } |
| 83 | } |
| 84 | |
amadan