test: add coverage for PR #385 (nominatim endpoint & geocoder) (#443)

Author: DennisOSRM

test/geocoder.test.js

@@ -0,0 +1,32 @@
+'use strict';
+
+describe('geocoder.coordPreserving', () => {
+  beforeEach(() => {
+    jest.resetModules();
+  });
+
+  test('passes serviceUrl to nominatim and preserves exact coordinates for coordinate input', async () => {
+    const reverseMock = jest.fn(() => Promise.resolve([{ name: 'nom-res', center: { lat: 99, lng: 88 } }]));
+    const geocodeMock = jest.fn(() => Promise.resolve([]));
+    const nominatimFactory = jest.fn(() => ({ reverse: reverseMock, geocode: geocodeMock }));
+
+    jest.doMock('leaflet', () => ({
+      Control: { Geocoder: { nominatim: nominatimFactory } },
+      CRS: { EPSG3857: { scale: () => 1 } },
+      latLng: (lat, lng) => ({ lat: +lat, lng: +lng, toBounds: () => ({}) }),
+      extend: Object.assign
+    }));
+
+    const geocoder = require('../src/geocoder');
+    const L = require('leaflet');
+
+    const g = geocoder.coordPreserving('https://nominatim.example/');
+    expect(L.Control.Geocoder.nominatim).toHaveBeenCalledWith({ serviceUrl: 'https://nominatim.example/' });
+
+    const results = await g.geocode('34.129382,-118.141254');
+    expect(results).toHaveLength(1);
+    expect(results[0].center.lat).toBeCloseTo(34.129382);
+    expect(results[0].center.lng).toBeCloseTo(-118.141254);
+    expect(reverseMock).toHaveBeenCalled();
+  });
+});

test/replace_nominatim.test.js

@@ -0,0 +1,18 @@
+'use strict';
+
+const { applyReplacements } = require('../scripts/replace');
+
+describe('applyReplacements — nominatim endpoint override', () => {
+  test('replaces Nominatim endpoint when NOMINATIM_ENDPOINT env var is set', () => {
+    const content = "nominatim: { path: 'https://nominatim.openstreetmap.org/' }";
+    const result = applyReplacements(content, { NOMINATIM_ENDPOINT: 'https://example.com/nominatim/' });
+    expect(result).toContain('https://example.com/nominatim/');
+    expect(result).not.toContain('nominatim.openstreetmap.org');
+  });
+
+  test('leaves content unchanged when NOMINATIM_ENDPOINT not provided', () => {
+    const content = "nominatim: { path: 'https://nominatim.openstreetmap.org/' }";
+    const result = applyReplacements(content, {});
+    expect(result).toContain('nominatim.openstreetmap.org');
+  });
+});