Leave a composed member's gate to the group's verdict, reword the mark leftovers, restore main's merge-check.sh (issues 1022, 978)

modules/gitea/test/pulls.test.ts

@@ -172,3 +172,23 @@ test("a composed verdict sets every member's gate at its own head, naming its tr
   assert.equal(groupGateStatus({ ...c, verdict: "fail", summary: "a and b do not compose" }, c.members[0]).state, "failure");
   assert.equal(groupGateStatus({ ...c, verdict: "error", summary: "could not run" }, c.members[0]).state, "error");
 });
+
+// A member's own verdict whose gate layer is the group's composed check's sets its repository check only, and never the
+// gate as an error: the gate stays pending until the composed verdict lands, in either order (ADR 0403 §1, issue 978).
+test("a member's own verdict with a composed gate layer leaves the gate to the composed verdict, in either order", async () => {
+  const { statusesFor, composedGate, groupGateStatus, CHECK_CONTEXT, REPO_CHECK_CONTEXT } = await import("../pulls.ts");
+  const c = { owner: "novox", repo: "mesh-catalog", number: 2, commit: "d".repeat(40), id: "build-1", verdict: "pass", summary: "x",
+    gate: { verdict: "composed", summary: "judged by its group" }, "repo-check": { verdict: "pass", summary: "suite passed" } };
+  assert.ok(composedGate(c));
+  // Before the composed verdict: the repository check, and the gate pending, saying it waits.
+  const before = statusesFor(c, {}, undefined);
+  assert.deepEqual(before.map((s) => [s.context, s.state]), [[CHECK_CONTEXT, "pending"], [REPO_CHECK_CONTEXT, "success"]]);
+  assert.match(before[0].description, /waits for its group's composed check/);
+  assert.ok(!before.some((s) => s.state === "error"));
+  // After it: the standing composed gate is left alone.
+  const standing = groupGateStatus({ ...c, group: "feat/x", members: [] }, { owner: "novox", repo: "mesh-catalog", commit: c.commit }).description;
+  const after = statusesFor(c, {}, standing);
+  assert.deepEqual(after.map((s) => [s.context, s.state]), [[REPO_CHECK_CONTEXT, "success"]]);
+  // A verdict with an ordinary gate is as before.
+  assert.equal(composedGate({ ...c, gate: { verdict: "pass", summary: "x" } }), false);
+});