| 1 | package release |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "errors" |
| 6 | "os" |
| 7 | "sync" |
| 8 | "testing" |
| 9 | "time" |
| 10 | |
| 11 | "github.com/carlosframework/platform/internal/rootstate" |
| 12 | ) |
| 13 | |
| 14 | type exclusionDisk struct { |
| 15 | rootstate.Store |
| 16 | mu sync.Mutex |
| 17 | } |
| 18 | |
| 19 | func (d *exclusionDisk) Lock(ctx context.Context, name string) (func(), error) { |
| 20 | d.mu.Lock() |
| 21 | return d.mu.Unlock, nil |
| 22 | } |
| 23 | func (d *exclusionDisk) Close() error { return nil } |
| 24 | |
| 25 | func TestPlan14ReleaseExclusionToken(t *testing.T) { |
| 26 | disk := &exclusionDisk{} |
| 27 | a := &ReleaseExclusion{Open: func() (rootstate.Store, error) { return disk, nil }} |
| 28 | b := &ReleaseExclusion{Open: a.Open} |
| 29 | if !errors.Is(a.Check(t.Context()), os.ErrPermission) { |
| 30 | t.Fatal("missing token accepted") |
| 31 | } |
| 32 | var stale context.Context |
| 33 | if err := a.With(t.Context(), func(ctx context.Context) error { |
| 34 | stale = ctx |
| 35 | if err := a.Check(ctx); err != nil { |
| 36 | t.Fatal(err) |
| 37 | } |
| 38 | if !errors.Is(b.Check(ctx), os.ErrPermission) { |
| 39 | t.Fatal("foreign token accepted") |
| 40 | } |
| 41 | if !errors.Is(b.With(ctx, func(context.Context) error { t.Fatal("foreign nested lock"); return nil }), os.ErrPermission) { |
| 42 | t.Fatal("foreign nesting accepted") |
| 43 | } |
| 44 | return a.With(ctx, func(nested context.Context) error { return a.Check(nested) }) |
| 45 | }); err != nil { |
| 46 | t.Fatal(err) |
| 47 | } |
| 48 | if !errors.Is(a.Check(stale), os.ErrPermission) { |
| 49 | t.Fatal("stale token accepted") |
| 50 | } |
| 51 | if !errors.Is(a.With(stale, func(context.Context) error { t.Fatal("stale reused"); return nil }), os.ErrPermission) { |
| 52 | t.Fatal("stale context reacquired") |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | type deadlineExclusionDisk struct { |
| 57 | rootstate.Store |
| 58 | wait bool |
| 59 | } |
| 60 | |
| 61 | func (d deadlineExclusionDisk) Lock(ctx context.Context, name string) (func(), error) { |
| 62 | if _, ok := ctx.Deadline(); !ok { |
| 63 | return nil, os.ErrPermission |
| 64 | } |
| 65 | if d.wait { |
| 66 | <-ctx.Done() |
| 67 | return nil, ctx.Err() |
| 68 | } |
| 69 | return func() {}, nil |
| 70 | } |
| 71 | func (d deadlineExclusionDisk) Close() error { return nil } |
| 72 | func TestPlan14ReleaseExclusionWaitBudget(t *testing.T) { |
| 73 | for _, wait := range []bool{false, true} { |
| 74 | x := &ReleaseExclusion{Wait: 10 * time.Millisecond, Open: func() (rootstate.Store, error) { return deadlineExclusionDisk{wait: wait}, nil }} |
| 75 | called := false |
| 76 | err := x.With(t.Context(), func(ctx context.Context) error { called = true; time.Sleep(20 * time.Millisecond); return x.Check(ctx) }) |
| 77 | if wait { |
| 78 | if !errors.Is(err, context.DeadlineExceeded) || called { |
| 79 | t.Fatal("unbounded wait", err, called) |
| 80 | } |
| 81 | } else if err != nil || !called { |
| 82 | t.Fatal("wait budget leaked into effect", err, called) |
| 83 | } |
| 84 | } |
| 85 | } |
| 86 | |
amadan