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Implement independent presentation readiness boundaries

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This commit is contained in:
Timothy J. Aveni
2026-09-27 20:30:07 -07:00
parent b499298299
commit ad72185a6c
8 changed files with 140 additions and 31 deletions
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test/prepared-presentations.test.ts
+22 -12
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@@ -124,19 +124,20 @@ async function fixture(replacement = "First", change?: (artifact: ReactPreparati
test("workspace expands distinct providers' private inputs without parent field declarations", async () => {
const { pkg } = await fixture();
const parent = pkg.checkedQueries!.find((query) => query.declaration.id === "react:input:library-card:data")!;
assert.match(parent.document, /title/);
assert.match(parent.document, /detail/);
const acquisition = pkg.checkedQueries!.find(
(query) =>
query.declaration.id ===
(parent.declaration.placement?.kind === "local" ? parent.declaration.placement.sourceQueryId : ""),
)!;
assert.match(acquisition.document, /title/);
assert.match(acquisition.document, /detail/);
const plan = pkg.queryCompositions!.find((composition) => composition.id === "react:inputs:library-card")!;
assert.equal(plan.steps[0]!.query, parent.declaration.id);
assert.equal(Object.keys(parent.fragmentContracts ?? {}).length, 2);
const discovery = pkg.queryCompositions!.find(
(composition) => composition.id === "react:inputs:library-card:discovery",
)!;
assert.equal(
discovery.steps[0]!.query,
"LibraryData",
"Cold child data cannot block discovering its selected reference",
);
assert(!pkg.queryCompositions!.some((composition) => composition.id.endsWith(":discovery")));
const original = pkg.checkedQueries!.find((query) => query.declaration.id === "LibraryData")!;
assert.deepEqual(parent.output, original.output, "Acquisition-only child fields are not parent requirements");
assert(Object.values(parent.fragmentContracts!).every((entry) => entry.mode === "reference"));
});
test("eager cycles and wrongly typed child bindings fail before runtime", async () => {
@@ -167,7 +168,16 @@ test("eager cycles and wrongly typed child bindings fail before runtime", async
test("workspace replacement changes acquisition requirements without changing the parent", async () => {
const { pkg } = await fixture("Second");
const parent = pkg.checkedQueries!.find((query) => query.declaration.id === "react:input:library-card:data")!;
assert.doesNotMatch(parent.document, /\btitle\b/);
assert.match(parent.document, /detail/);
const acquisition = pkg.checkedQueries!.find(
(query) =>
query.declaration.id ===
(parent.declaration.placement?.kind === "local" ? parent.declaration.placement.sourceQueryId : ""),
)!;
assert.doesNotMatch(acquisition.document, /\btitle\b/);
assert.match(acquisition.document, /detail/);
assert.equal(Object.keys(parent.fragmentContracts ?? {}).length, 1);
const previous = (await fixture()).pkg.checkedQueries!.find(
(query) => query.declaration.id === parent.declaration.id,
)!;
assert.deepEqual(parent.output, previous.output);
});