From 9d3dfd82f8e911efb3b43075081c0df3ddaf594e Mon Sep 17 00:00:00 2001
From: Brandon Keepers <brandon@opensoul.org>
Date: Sat, 10 Jan 2026 11:39:23 -0500
Subject: [PATCH] Add test to validate that all constituents are supported by
 neaps

---
 test/validate.test.ts | 30 ++++++++++++++++++++++--------
 1 file changed, 22 insertions(+), 8 deletions(-)

diff --git a/test/validate.test.ts b/test/validate.test.ts
index a0f00be24..33cd79ab7 100755
--- a/test/validate.test.ts
+++ b/test/validate.test.ts
@@ -1,11 +1,12 @@
 #!/usr/bin/env node
 
-import { describe, test } from "vitest";
+import { describe, test, expect } from "vitest";
 import { readFile } from "fs/promises";
 import { join } from "path";
 import Ajv2020 from "ajv/dist/2020.js";
 import addFormats from "ajv-formats";
 import { stations } from "../src/index.js";
+import tidePredictor from "@neaps/tide-predictor";
 
 const ROOT = new URL("..", import.meta.url).pathname;
 const SCHEMA_PATH = join(ROOT, "schemas", "station.schema.json");
@@ -17,13 +18,26 @@ const validate = ajv.compile(schema);
 
 describe("schema", () => {
   stations.forEach((station) => {
-    test(`Station ${station.id}`, () => {
-      const valid = validate(station);
-      if (!valid)
-        throw new Error(
-          ajv.errorsText(validate.errors) +
-            `\n${JSON.stringify(validate.errors, null, 2)}`,
-        );
+    describe(station.id, () => {
+      test("is valid", () => {
+        const valid = validate(station);
+        if (!valid)
+          throw new Error(
+            ajv.errorsText(validate.errors) +
+              `\n${JSON.stringify(validate.errors, null, 2)}`,
+          );
+      });
+
+      if (station.harmonic_constituents) {
+        test("uses constituents supported by neaps", () => {
+          station.harmonic_constituents.forEach((hc) => {
+            expect(
+              tidePredictor.constituents[hc.name],
+              `Unsupported constituent: ${hc.name}`,
+            ).toBeDefined();
+          });
+        });
+      }
     });
   });
 });