Add Revit CSV preview API

tests/external-csv-api-contract.test.ts

@@ -0,0 +1,52 @@
+import assert from "node:assert/strict";
+import { describe, it } from "node:test";
+import {
+  previewExternalCsvSchema,
+  updateExternalCsvConfigurationSchema,
+} from "../src/shared/validation/external-csv.schemas.js";
+import { createDefaultExternalCsvConfiguration } from "../src/external-model/csv/external-csv-contracts.js";
+import { externalCsvTestColumns } from "./fixtures/revit-csv-fixtures.js";
+
+describe("external CSV API contracts", () => {
+  it("accepts strict update and preview request envelopes", () => {
+    assert.equal(
+      updateExternalCsvConfigurationSchema.safeParse({
+        expectedRevision: 4,
+        configuration: createDefaultExternalCsvConfiguration(externalCsvTestColumns),
+      }).success,
+      true
+    );
+    assert.equal(
+      previewExternalCsvSchema.safeParse({
+        fileName: "revit.csv",
+        contentBase64: "YWJj",
+      }).success,
+      true
+    );
+  });
+
+  it("rejects stale-shaped, oversized and unknown request fields", () => {
+    assert.equal(
+      updateExternalCsvConfigurationSchema.safeParse({
+        expectedRevision: -1,
+        configuration: {},
+      }).success,
+      false
+    );
+    assert.equal(
+      previewExternalCsvSchema.safeParse({
+        fileName: "revit.csv",
+        contentBase64: "YWJj",
+        apply: true,
+      }).success,
+      false
+    );
+    assert.equal(
+      previewExternalCsvSchema.safeParse({
+        fileName: "revit.csv",
+        contentBase64: "a".repeat(24_000_001),
+      }).success,
+      false
+    );
+  });
+});