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feat: uuroverzicht per dag (temperatuur, regen, wind)

Browse Source 
Tik op een dag in de verwachtingsstrook voor een uuroverzicht van
temperatuur, regen en wind (richting + snelheid), om de 2 uur, 12
punten per dag. Sluit na 20 seconden vanzelf of bij een tik op de
overlay zelf.

Backend: Open-Meteo levert hourly-data in dezelfde call als daily
(geen extra verzoek, dezelfde 60min-cache). Nieuwe HourlyForecastMapper
groepeert per kalenderdatum en bemonstert om het andere uur, robuust
voor de zomertijddag (23/25 uur). OpenMeteoClient::dailyForecast()
hernoemd naar forecast(), geeft nu {daily, hourly} terug. Elke dag in
de forecast-array krijgt een hourly-lijst.

Frontend: temperatuurlijn hergebruikt sparklinePath (nu ook als
sparklinePoints voor exacte uitlijning met de 12-koloms grid), regen
als kleine staafjes, windpijl (nieuw icoon) wijst waarheen de wind
waait. 20s-balk via CSS transition met reflow-restart. Servicewerker
naar v5.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
theo
2026-09-13 10:18:11 +02:00
co-authored by Claude Sonnet 5
parent 90e979f562
commit 8e90eb1129
20 changed files with 1420 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/DashboardServiceTest.php
+3
View File
@@ -65,6 +65,9 @@ final class DashboardServiceTest extends TestCase
self::assertFalse($p['rain']['stale']);
self::assertCount(6, $p['forecast']);
self::assertSame('2026-09-11', $p['forecast'][0]['date']);
self::assertCount(12, $p['forecast'][0]['hourly']);
self::assertSame(['at', 'temp', 'precip_mm', 'wind_kmh', 'wind_dir'], array_keys($p['forecast'][0]['hourly'][0]));
self::assertSame('2026-09-11T00:00:00+02:00', $p['forecast'][0]['hourly'][0]['at']);
self::assertFalse($p['forecast_stale']);
self::assertSame([], $p['errors']);
}
tests/FakeSource.php
+4 -1
View File
@@ -25,7 +25,10 @@ final class FakeSource implements WeatherSource
'stations' => json_decode((string) file_get_contents(__DIR__ . '/fixtures/getstationsdata.json'), true)['body'],
'measure' => json_decode((string) file_get_contents(__DIR__ . '/fixtures/getmeasure.json'), true)['body'],
'pressure' => json_decode((string) file_get_contents(__DIR__ . '/fixtures/getmeasure-pressure.json'), true)['body'],
'forecast' => json_decode((string) file_get_contents(__DIR__ . '/fixtures/forecast.json'), true)['daily'],
'forecast' => array_intersect_key(
json_decode((string) file_get_contents(__DIR__ . '/fixtures/forecast.json'), true),
['daily' => null, 'hourly' => null],
),
];
return $s;
}
tests/HourlyForecastMapperTest.php
+103
View File
@@ -0,0 +1,103 @@
<?php
declare(strict_types=1);
namespace Weerscherm\Tests;
use PHPUnit\Framework\TestCase;
use Weerscherm\HourlyForecastMapper;
final class HourlyForecastMapperTest extends TestCase
{
private \DateTimeZone $tz;
protected function setUp(): void
{
$this->tz = new \DateTimeZone('Europe/Berlin');
}
/** @return array<string, mixed> */
private function hourly(): array
{
return json_decode((string) file_get_contents(__DIR__ . '/fixtures/forecast.json'), true)['hourly'];
}
public function testGroupsByDateAndSamplesEveryOtherHour(): void
{
$byDate = HourlyForecastMapper::mapByDate($this->hourly(), $this->tz);
self::assertSame(['2026-09-11', '2026-09-12', '2026-09-13', '2026-09-14', '2026-09-15', '2026-09-16'], array_keys($byDate));
self::assertCount(12, $byDate['2026-09-11']);
$hours = array_map(
fn(array $p) => (int) (new \DateTimeImmutable($p['at']))->format('H'),
$byDate['2026-09-11'],
);
self::assertSame([0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22], $hours);
}
public function testPointShapeAndValues(): void
{
$byDate = HourlyForecastMapper::mapByDate($this->hourly(), $this->tz);
$noon = $byDate['2026-09-11'][6]; // index 6 = 12:00 (0,2,4,6,8,10,12,...)
self::assertSame(['at', 'temp', 'precip_mm', 'wind_kmh', 'wind_dir'], array_keys($noon));
self::assertSame('2026-09-11T12:00:00+02:00', $noon['at']);
self::assertIsFloat($noon['temp']);
self::assertIsFloat($noon['precip_mm']);
self::assertIsFloat($noon['wind_kmh']);
self::assertIsInt($noon['wind_dir']);
}
public function testRainOnlyOnTheHoursThatHaveIt(): void
{
$byDate = HourlyForecastMapper::mapByDate($this->hourly(), $this->tz);
// 2026-09-14 heeft 8,2 mm in de dagfixture, verdeeld over 14-16u; de bemonsterde uren zijn 0,2,4,..22.
$rainy = array_filter($byDate['2026-09-14'], fn(array $p) => $p['precip_mm'] > 0);
self::assertNotEmpty($rainy);
foreach ($rainy as $p) {
self::assertGreaterThanOrEqual(14, (int) (new \DateTimeImmutable($p['at']))->format('H'));
}
}
public function testDaylightSavingDayWithTwentyFiveHoursSamplesWithoutError(): void
{
$hourly = json_decode((string) file_get_contents(__DIR__ . '/fixtures/hourly-dst.json'), true);
$byDate = HourlyForecastMapper::mapByDate($hourly, $this->tz);
self::assertCount(13, $byDate['2026-10-25'], '25 punten, om de 2: index 0,2,...,24 = 13 stuks');
}
public function testNullValuesStayNull(): void
{
$hourly = $this->hourly();
$hourly['temperature_2m'][0] = null;
$hourly['wind_direction_10m'][0] = 'kapot';
$byDate = HourlyForecastMapper::mapByDate($hourly, $this->tz);
self::assertNull($byDate['2026-09-11'][0]['temp']);
self::assertNull($byDate['2026-09-11'][0]['wind_dir']);
}
public function testMalformedTimestampsAreSkipped(): void
{
$byDate = HourlyForecastMapper::mapByDate([
'time' => ['niet-een-datum', '2026-09-11T05:00'],
'temperature_2m' => [1.0, 2.0],
'precipitation' => [0.0, 0.0],
'wind_speed_10m' => [1.0, 1.0],
'wind_direction_10m' => [1, 1],
], $this->tz);
self::assertSame(['2026-09-11'], array_keys($byDate));
self::assertCount(1, $byDate['2026-09-11']);
}
public function testMissingTimeArrayGivesEmptyResult(): void
{
self::assertSame([], HourlyForecastMapper::mapByDate([], $this->tz));
}
}
tests/OpenMeteoClientTest.php
+16 -5
View File
@@ -10,19 +10,21 @@ use Weerscherm\UpstreamException;
final class OpenMeteoClientTest extends TestCase
{
public function testRequestsSixDaysWithAllDailyVariables(): void
public function testRequestsSixDaysWithDailyAndHourlyVariables(): void
{
$http = new FakeHttp();
$http->queue(200, json_decode((string) file_get_contents(__DIR__ . '/fixtures/forecast.json'), true));
$daily = (new OpenMeteoClient($http))->dailyForecast(51.82, 6.55, 'Europe/Berlin');
$result = (new OpenMeteoClient($http))->forecast(51.82, 6.55, 'Europe/Berlin');
self::assertCount(6, $daily['time']);
self::assertCount(6, $result['daily']['time']);
self::assertCount(144, $result['hourly']['time']);
self::assertSame('https://api.open-meteo.com/v1/forecast', $http->requests[0]['url']);
self::assertSame([
'latitude' => 51.82,
'longitude' => 6.55,
'daily' => 'weather_code,temperature_2m_max,temperature_2m_min,precipitation_sum,precipitation_probability_max',
'hourly' => 'temperature_2m,precipitation,wind_speed_10m,wind_direction_10m',
'timezone' => 'Europe/Berlin',
'forecast_days' => 6,
], $http->requests[0]['params']);
@@ -32,13 +34,22 @@ final class OpenMeteoClientTest extends TestCase
{
$http = (new FakeHttp())->queue(429, ['reason' => 'rate limit']);
$this->expectException(UpstreamException::class);
(new OpenMeteoClient($http))->dailyForecast(1, 2, 'UTC');
(new OpenMeteoClient($http))->forecast(1, 2, 'UTC');
}
public function testMissingDailyIsUpstreamException(): void
{
$http = (new FakeHttp())->queue(200, ['hourly' => []]);
$this->expectException(UpstreamException::class);
(new OpenMeteoClient($http))->dailyForecast(1, 2, 'UTC');
(new OpenMeteoClient($http))->forecast(1, 2, 'UTC');
}
public function testMissingHourlyGivesEmptyHourlyBlockInsteadOfError(): void
{
$http = (new FakeHttp())->queue(200, ['daily' => ['time' => ['2026-09-11']]]);
$result = (new OpenMeteoClient($http))->forecast(1, 2, 'UTC');
self::assertSame([], $result['hourly']);
}
}
tests/fixtures/forecast.json
Vendored
+804 -23
View File
@@ -1,25 +1,806 @@
{
"latitude": 51.82,
"longitude": 6.56,
"generationtime_ms": 0.2,
"utc_offset_seconds": 7200,
"timezone": "Europe/Berlin",
"timezone_abbreviation": "CEST",
"elevation": 20.0,
"daily_units": {
"time": "iso8601",
"weather_code": "wmo code",
"temperature_2m_max": "°C",
"temperature_2m_min": "°C",
"precipitation_sum": "mm",
"precipitation_probability_max": "%"
},
"daily": {
"time": ["2026-09-11", "2026-09-12", "2026-09-13", "2026-09-14", "2026-09-15", "2026-09-16"],
"weather_code": [3, 2, 0, 61, 80, 2],
"temperature_2m_max": [17.9, 18.3, 20.1, 17.4, 15.2, 16.0],
"temperature_2m_min": [11.0, 10.1, 11.3, 12.0, 9.4, 8.1],
"precipitation_sum": [0.0, 0.4, 0.0, 8.2, 3.1, 0.2],
"precipitation_probability_max": [10, 20, 5, 80, 60, 15]
}
"latitude": 51.82,
"longitude": 6.56,
"generationtime_ms": 0.2,
"utc_offset_seconds": 7200,
"timezone": "Europe/Berlin",
"timezone_abbreviation": "CEST",
"elevation": 20,
"daily_units": {
"time": "iso8601",
"weather_code": "wmo code",
"temperature_2m_max": "\u00b0C",
"temperature_2m_min": "\u00b0C",
"precipitation_sum": "mm",
"precipitation_probability_max": "%"
},
"daily": {
"time": [
"2026-09-11",
"2026-09-12",
"2026-09-13",
"2026-09-14",
"2026-09-15",
"2026-09-16"
],
"weather_code": [
3,
2,
0,
61,
80,
2
],
"temperature_2m_max": [
17.9,
18.3,
20.1,
17.4,
15.2,
16
],
"temperature_2m_min": [
11,
10.1,
11.3,
12,
9.4,
8.1
],
"precipitation_sum": [
0,
0.4,
0,
8.2,
3.1,
0.2
],
"precipitation_probability_max": [
10,
20,
5,
80,
60,
15
]
},
"hourly_units": {
"time": "iso8601",
"temperature_2m": "\u00b0C",
"precipitation": "mm",
"wind_speed_10m": "km/h",
"wind_direction_10m": "\u00b0"
},
"hourly": {
"time": [
"2026-09-11T00:00",
"2026-09-11T01:00",
"2026-09-11T02:00",
"2026-09-11T03:00",
"2026-09-11T04:00",
"2026-09-11T05:00",
"2026-09-11T06:00",
"2026-09-11T07:00",
"2026-09-11T08:00",
"2026-09-11T09:00",
"2026-09-11T10:00",
"2026-09-11T11:00",
"2026-09-11T12:00",
"2026-09-11T13:00",
"2026-09-11T14:00",
"2026-09-11T15:00",
"2026-09-11T16:00",
"2026-09-11T17:00",
"2026-09-11T18:00",
"2026-09-11T19:00",
"2026-09-11T20:00",
"2026-09-11T21:00",
"2026-09-11T22:00",
"2026-09-11T23:00",
"2026-09-12T00:00",
"2026-09-12T01:00",
"2026-09-12T02:00",
"2026-09-12T03:00",
"2026-09-12T04:00",
"2026-09-12T05:00",
"2026-09-12T06:00",
"2026-09-12T07:00",
"2026-09-12T08:00",
"2026-09-12T09:00",
"2026-09-12T10:00",
"2026-09-12T11:00",
"2026-09-12T12:00",
"2026-09-12T13:00",
"2026-09-12T14:00",
"2026-09-12T15:00",
"2026-09-12T16:00",
"2026-09-12T17:00",
"2026-09-12T18:00",
"2026-09-12T19:00",
"2026-09-12T20:00",
"2026-09-12T21:00",
"2026-09-12T22:00",
"2026-09-12T23:00",
"2026-09-13T00:00",
"2026-09-13T01:00",
"2026-09-13T02:00",
"2026-09-13T03:00",
"2026-09-13T04:00",
"2026-09-13T05:00",
"2026-09-13T06:00",
"2026-09-13T07:00",
"2026-09-13T08:00",
"2026-09-13T09:00",
"2026-09-13T10:00",
"2026-09-13T11:00",
"2026-09-13T12:00",
"2026-09-13T13:00",
"2026-09-13T14:00",
"2026-09-13T15:00",
"2026-09-13T16:00",
"2026-09-13T17:00",
"2026-09-13T18:00",
"2026-09-13T19:00",
"2026-09-13T20:00",
"2026-09-13T21:00",
"2026-09-13T22:00",
"2026-09-13T23:00",
"2026-09-14T00:00",
"2026-09-14T01:00",
"2026-09-14T02:00",
"2026-09-14T03:00",
"2026-09-14T04:00",
"2026-09-14T05:00",
"2026-09-14T06:00",
"2026-09-14T07:00",
"2026-09-14T08:00",
"2026-09-14T09:00",
"2026-09-14T10:00",
"2026-09-14T11:00",
"2026-09-14T12:00",
"2026-09-14T13:00",
"2026-09-14T14:00",
"2026-09-14T15:00",
"2026-09-14T16:00",
"2026-09-14T17:00",
"2026-09-14T18:00",
"2026-09-14T19:00",
"2026-09-14T20:00",
"2026-09-14T21:00",
"2026-09-14T22:00",
"2026-09-14T23:00",
"2026-09-15T00:00",
"2026-09-15T01:00",
"2026-09-15T02:00",
"2026-09-15T03:00",
"2026-09-15T04:00",
"2026-09-15T05:00",
"2026-09-15T06:00",
"2026-09-15T07:00",
"2026-09-15T08:00",
"2026-09-15T09:00",
"2026-09-15T10:00",
"2026-09-15T11:00",
"2026-09-15T12:00",
"2026-09-15T13:00",
"2026-09-15T14:00",
"2026-09-15T15:00",
"2026-09-15T16:00",
"2026-09-15T17:00",
"2026-09-15T18:00",
"2026-09-15T19:00",
"2026-09-15T20:00",
"2026-09-15T21:00",
"2026-09-15T22:00",
"2026-09-15T23:00",
"2026-09-16T00:00",
"2026-09-16T01:00",
"2026-09-16T02:00",
"2026-09-16T03:00",
"2026-09-16T04:00",
"2026-09-16T05:00",
"2026-09-16T06:00",
"2026-09-16T07:00",
"2026-09-16T08:00",
"2026-09-16T09:00",
"2026-09-16T10:00",
"2026-09-16T11:00",
"2026-09-16T12:00",
"2026-09-16T13:00",
"2026-09-16T14:00",
"2026-09-16T15:00",
"2026-09-16T16:00",
"2026-09-16T17:00",
"2026-09-16T18:00",
"2026-09-16T19:00",
"2026-09-16T20:00",
"2026-09-16T21:00",
"2026-09-16T22:00",
"2026-09-16T23:00"
],
"temperature_2m": [
10.3,
9.7,
9.3,
9.2,
9.3,
9.7,
10.3,
11,
11.9,
12.8,
13.7,
14.6,
15.3,
15.9,
16.3,
16.4,
16.3,
15.9,
15.3,
14.6,
13.7,
12.8,
11.9,
11,
11.3,
10.6,
10.2,
10.1,
10.2,
10.6,
11.3,
12.2,
13.1,
14.2,
15.3,
16.3,
17.1,
17.8,
18.2,
18.3,
18.2,
17.8,
17.1,
16.3,
15.3,
14.2,
13.1,
12.2,
12.6,
11.9,
11.4,
11.3,
11.4,
11.9,
12.6,
13.5,
14.6,
15.7,
16.8,
17.9,
18.8,
19.5,
20,
20.1,
20,
19.5,
18.8,
17.9,
16.8,
15.7,
14.6,
13.5,
12.8,
12.4,
12.1,
12,
12.1,
12.4,
12.8,
13.4,
14,
14.7,
15.4,
16.1,
16.6,
17,
17.3,
17.4,
17.3,
17,
16.6,
16.1,
15.4,
14.7,
14,
13.4,
10.2,
9.8,
9.5,
9.4,
9.5,
9.8,
10.2,
10.9,
11.5,
12.3,
13.1,
13.8,
14.4,
14.8,
15.1,
15.2,
15.1,
14.8,
14.4,
13.8,
13.1,
12.3,
11.5,
10.9,
9.3,
8.6,
8.2,
8.1,
8.2,
8.6,
9.3,
10.1,
11,
12.1,
13.1,
14,
14.8,
15.5,
15.9,
16,
15.9,
15.5,
14.8,
14,
13.1,
12.1,
11,
10.1
],
"precipitation": [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0.1,
0.1,
0.1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
2.7,
2.7,
2.7,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1,
1,
1,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0.1,
0.1,
0.1,
0,
0,
0,
0,
0,
0,
0
],
"wind_speed_10m": [
6,
6.8,
7.5,
8.1,
8.6,
8.9,
9,
8.9,
8.6,
8.1,
7.5,
6.8,
6,
5.2,
4.5,
3.9,
3.4,
3.1,
3,
3.1,
3.4,
3.9,
4.5,
5.2,
8.1,
8.6,
8.9,
9,
8.9,
8.6,
8.1,
7.5,
6.8,
6,
5.2,
4.5,
3.9,
3.4,
3.1,
3,
3.1,
3.4,
3.9,
4.5,
5.2,
6,
6.8,
7.5,
9,
8.9,
8.6,
8.1,
7.5,
6.8,
6,
5.2,
4.5,
3.9,
3.4,
3.1,
3,
3.1,
3.4,
3.9,
4.5,
5.2,
6,
6.8,
7.5,
8.1,
8.6,
8.9,
8.1,
7.5,
6.8,
6,
5.2,
4.5,
3.9,
3.4,
3.1,
3,
3.1,
3.4,
3.9,
4.5,
5.2,
6,
6.8,
7.5,
8.1,
8.6,
8.9,
9,
8.9,
8.6,
6,
5.2,
4.5,
3.9,
3.4,
3.1,
3,
3.1,
3.4,
3.9,
4.5,
5.2,
6,
6.8,
7.5,
8.1,
8.6,
8.9,
9,
8.9,
8.6,
8.1,
7.5,
6.8,
3.9,
3.4,
3.1,
3,
3.1,
3.4,
3.9,
4.5,
5.2,
6,
6.8,
7.5,
8.1,
8.6,
8.9,
9,
8.9,
8.6,
8.1,
7.5,
6.8,
6,
5.2,
4.5
],
"wind_direction_10m": [
0,
7,
14,
21,
28,
35,
42,
49,
56,
63,
70,
77,
84,
91,
98,
105,
112,
119,
126,
133,
140,
147,
154,
161,
40,
47,
54,
61,
68,
75,
82,
89,
96,
103,
110,
117,
124,
131,
138,
145,
152,
159,
166,
173,
180,
187,
194,
201,
80,
87,
94,
101,
108,
115,
122,
129,
136,
143,
150,
157,
164,
171,
178,
185,
192,
199,
206,
213,
220,
227,
234,
241,
120,
127,
134,
141,
148,
155,
162,
169,
176,
183,
190,
197,
204,
211,
218,
225,
232,
239,
246,
253,
260,
267,
274,
281,
160,
167,
174,
181,
188,
195,
202,
209,
216,
223,
230,
237,
244,
251,
258,
265,
272,
279,
286,
293,
300,
307,
314,
321,
200,
207,
214,
221,
228,
235,
242,
249,
256,
263,
270,
277,
284,
291,
298,
305,
312,
319,
326,
333,
340,
347,
354,
1
]
}
}
tests/fixtures/hourly-dst.json
Vendored
+137
View File
@@ -0,0 +1,137 @@
{
"time": [
"2026-10-25T00:00",
"2026-10-25T01:00",
"2026-10-25T02:00",
"2026-10-25T03:00",
"2026-10-25T04:00",
"2026-10-25T05:00",
"2026-10-25T06:00",
"2026-10-25T07:00",
"2026-10-25T08:00",
"2026-10-25T09:00",
"2026-10-25T10:00",
"2026-10-25T11:00",
"2026-10-25T12:00",
"2026-10-25T13:00",
"2026-10-25T14:00",
"2026-10-25T15:00",
"2026-10-25T16:00",
"2026-10-25T17:00",
"2026-10-25T18:00",
"2026-10-25T19:00",
"2026-10-25T20:00",
"2026-10-25T21:00",
"2026-10-25T22:00",
"2026-10-25T23:00",
"2026-10-25T02:00"
],
"temperature_2m": [
10,
10.1,
10.2,
10.3,
10.4,
10.5,
10.6,
10.7,
10.8,
10.9,
11,
11.1,
11.2,
11.3,
11.4,
11.5,
11.6,
11.7,
11.8,
11.9,
12,
12.1,
12.2,
12.3,
12.4
],
"precipitation": [
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0
],
"wind_speed_10m": [
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5,
5
],
"wind_direction_10m": [
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180,
180
]
}
tests/js/format.test.js
+37 -1
View File
@@ -119,7 +119,10 @@ test('msUntil computes the wait until the next local time', () => {
assert.equal(msUntil(new Date('2026-09-11T22:00:00.000Z'), TZ, 0), 86400000, 'precies op het moment zelf: pas morgen weer');
});
import { co2Level, fPct, fHpa, seriesRange, sparklinePath } from '../../public/format.js';
import {
co2Level, fPct, fHpa, seriesRange, sparklinePath, sparklinePoints,
windArrowDeg, fKmh, formatHour, formatFullDate,
} from '../../public/format.js';
test('co2Level uses the Netatmo thresholds', () => {
assert.deepEqual(co2Level(612), { level: 'good', label: 'goed' });
@@ -151,3 +154,36 @@ test('sparklinePath scales points into the box', () => {
assert.equal(sparklinePath([1000], 100, 50), '');
assert.equal(sparklinePath([], 100, 50), '');
});
test('sparklinePoints gives x for every index and null y for unknown values', () => {
const points = sparklinePoints([1000, null, 1010], 100, 50, 0);
assert.deepEqual(points.map((p) => p.x), [0, 50, 100]);
assert.equal(points[0].y, 50);
assert.equal(points[1].y, null);
assert.equal(points[2].y, 0);
});
test('windArrowDeg rotates 180 degrees so the arrow points where the wind blows to', () => {
assert.equal(windArrowDeg(0), 180);
assert.equal(windArrowDeg(270), 90);
assert.equal(windArrowDeg(200), 20);
assert.equal(windArrowDeg(null), null);
});
test('fKmh rounds to whole km/u', () => {
assert.equal(fKmh(8.4), '8 km/u');
assert.equal(fKmh(8.6), '9 km/u');
assert.equal(fKmh(null), '–');
});
test('formatHour gives a two-digit hour in the station timezone', () => {
assert.equal(formatHour('2026-09-14T00:00:00+02:00', TZ), '00');
assert.equal(formatHour('2026-09-14T14:00:00+02:00', TZ), '14');
assert.equal(formatHour('2026-09-13T23:00:00Z', TZ), '01', '23:00 UTC is 01:00 de volgende dag in Berlijn');
assert.equal(formatHour(null, TZ), '–');
});
test('formatFullDate matches formatDate for the same calendar date', () => {
assert.equal(formatFullDate('2026-09-14', TZ), 'Maandag 14 september');
assert.equal(formatFullDate('kapot', TZ), '–');
});