Ginkgo decorator reference

Terse lookup. Decorators are passed alongside a node's text/closure: It("...", Serial, Label("slow"), func(){...}). Most attach to containers and/or subjects; some are setup-only or interruptible-only. Decorators on a container apply to all nodes within it; the innermost/most-specific wins when they conflict. Full docs: https://onsi.github.io/ginkgo/#decorator-reference.

Execution / ordering

• Serial (container, subject), never runs in parallel; Ginkgo runs serial specs last, on process #1. → ginkgo:parallelism.
• Ordered (container only), child specs run in definition order, never reordered; enables BeforeAll/AfterAll. → ginkgo:ordering-and-flakes.
• ContinueOnFailure (outermost Ordered container only), a failing spec doesn't skip the rest of the ordered group.
• OncePerOrdered (setup nodes), makes a BeforeEach/AfterEach run once around an Ordered container (like a BeforeAll) instead of per-spec.
• SpecPriority(int) (container, subject), hint to run higher-priority specs earlier; use sparingly, not to impose a total order.

Selection / filtering (→ ginkgo:filtering)

• Label("a", "b") (container, subject), tag specs for --label-filter; labels union down the hierarchy. No &|!,()/" chars.
• Focus (container, subject), run only focused specs; don't commit it (CI exits non-zero). Constructors: FDescribe, FContext, FIt, FEntry.
• Pending (container, subject), never run (and never compiled into the run set); no closure needed. Constructors: PDescribe, XDescribe, PIt, XIt, PEntry.
• SemVerConstraint(">= 2.0.0", ...) / ComponentSemVerConstraint("redis", ">= 8.0.0") (container, subject), run only when --sem-ver-filter satisfies the constraint; children may narrow, not widen.