From 1fe1d13c600b7dfe421b3b99b833b7d5d1232724 Mon Sep 17 00:00:00 2001
From: Dennis Fink
Date: Thu, 23 Jul 2026 00:18:21 +0200
Subject: Add GPX trail maps to blog posts

This adds a trail flow block so posts can include attached GPX files as
interactive maps with route display, elevation charts, activity
summaries, and start/finish markers.

The trail assets are loaded only when needed, keeping the shared
templates clean while vendoring the Leaflet dependencies required for
offline, self-hosted map rendering.
---
 .../vendor/leaflet-elevation/src/utils.spec.js     | 50 ++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 assets/static/vendor/leaflet-elevation/src/utils.spec.js

(limited to 'assets/static/vendor/leaflet-elevation/src/utils.spec.js')

diff --git a/assets/static/vendor/leaflet-elevation/src/utils.spec.js b/assets/static/vendor/leaflet-elevation/src/utils.spec.js
new file mode 100644
index 0000000..7371a96
--- /dev/null
+++ b/assets/static/vendor/leaflet-elevation/src/utils.spec.js
@@ -0,0 +1,50 @@
+/**
+ * src/utils.js
+ */
+
+import { suite } from 'uvu';
+import * as assert from 'uvu/assert';
+import '../test/setup/jsdom.js'
+import { iAvg, iMin, iMax, iSum } from "../src/utils.js";
+
+const toFixed = (n) => +n.toFixed(2);
+
+const test = suite('src/utils.js');
+
+test('iAvg()', () => {
+    let avg;
+    avg = iAvg(100, undefined, 1); assert.is(toFixed(avg), 100);    // average for [100] is 100
+    avg = iAvg(100, avg, 2);       assert.is(toFixed(avg), 100);    // average for [100, 100] is 100
+    avg = iAvg(200, avg, 3);       assert.is(toFixed(avg), 133.33); // average for [100, 100, 200] is 133.33
+    avg = iAvg(200, avg, 4);       assert.is(toFixed(avg), 150);    // average for [100, 100, 200, 200] is 150
+    avg = iAvg(NaN, avg, 5);       assert.ok(isNaN(avg));           // average for [100, 100, 200, 200, NaN] is NaN
+});
+
+test('iMin()', () => {
+    let min;
+    min = iMin(100, undefined); assert.is(toFixed(min), 100);  // min for [100] is 100
+    min = iMin(NaN, min);       assert.is(toFixed(min), 100);  // min for [100, NaN] is 100
+    min = iMin(0, min);         assert.is(toFixed(min), 0);    // min for [100, NaN, 0] is 100
+    min = iMin(-200, min);      assert.is(toFixed(min), -200); // min for [100, NaN, 0, -200] is -200
+    min = iMin(200, min);       assert.is(toFixed(min), -200); // min for [100, NaN, -100, -200, 200] is -200
+});
+
+test('iMax()', () => {
+    let max;
+    max = iMax(100, undefined); assert.is(toFixed(max), 100); // max for [100] is 100
+    max = iMax(NaN, max);       assert.is(toFixed(max), 100); // max for [100, NaN] is 100
+    max = iMax(0, max);         assert.is(toFixed(max), 100); // max for [100, NaN, 0] is 100
+    max = iMax(-200, max);      assert.is(toFixed(max), 100); // max for [100, NaN, 0, -200] is 100
+    max = iMax(200, max);       assert.is(toFixed(max), 200); // max for [100, NaN, -100, -200, 200] is 200
+});
+
+test('iSum()', () => {
+    let sum;
+    sum = iSum(10.25, undefined); assert.is(toFixed(sum), 10.25); // sum for [10.25] is 10.25
+    sum = iSum(0, sum);           assert.is(toFixed(sum), 10.25); // sum for [10.25, 0] is 10.25
+    sum = iSum(-0.25, sum);       assert.is(toFixed(sum), 10);    // sum for [10.25, 0, -0.25] is 10
+    sum = iSum(-10, sum);         assert.is(toFixed(sum), 0);     // sum for [10.25, 0, -0.25, -10] is 0
+    sum = iSum(NaN, sum);         assert.ok(isNaN(sum));          // sum for [10.25, 0, -0.25, -10, NaN] is NaN
+});
+
+test.run();
\ No newline at end of file
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