From d34516dcd88ee89a4be8c90038bfb71dd087eb18 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/index.test.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/index.test.ts b/test/index.test.ts
index 34940c8e2..05f9f1fd2 100755
--- a/test/index.test.ts
+++ b/test/index.test.ts
@@ -4,6 +4,7 @@ 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");
@@ -31,6 +32,17 @@ stations.forEach((station) => {
         expect(reference, `Unknown reference station: ${id}`).toBeDefined();
       });
     }
+
+    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();
+        });
+      });
+    }
   });
 });