Smash782CountryFlagEmojiTest.php — Reviews Feed – Add Testimonials and Customer Reviews From Google Reviews, Yelp, TripAdvisor, and More 2.10.0

reviews-feed / tests / Unit / Smash782CountryFlagEmojiTest.php

reviews-feed / tests / Unit Last commit date

Smash782CountryFlagEmojiTest.php

77 lines

1	<?php
2
3	namespace SmashBalloon\Reviews\Tests\Unit;
4
5	use PHPUnit\Framework\TestCase;
6	use SmashBalloon\Reviews\Common\Util;
7
8	/**
9	* SMASH-782 follow-up (2026-07-08) — shared flag-emoji derivation.
10	*
11	* The AliExpress buyer-country flag was computed inline in two places with
12	* byte-identical logic: the feed author element (post-elements/author.php) and
13	* the Review Alerts popup (review-alerts/popup.php). Util::country_flag_emoji()
14	* now owns that computation so the feed and the alert render the same glyph
15	* from the same rules. These tests pin the extracted helper against the exact
16	* behaviour the two call sites relied on (2-letter/alpha validation, uppercase
17	* normalisation, the 0x1F1E6 regional-indicator codepoint math, and the safe
18	* empty-string fallback for anything not derivable).
19	*/
20	final class Smash782CountryFlagEmojiTest extends TestCase
21	{
22	/**
23	* The regional-indicator pair the old inline code would have produced for
24	* a valid 2-letter code — recomputed independently here so the test does
25	* not just echo the implementation.
26	*
27	* @param string $cc
28	* @return string
29	*/
30	private function expected($cc)
31	{
32	$up = strtoupper($cc);
33	$offset = 0x1F1E6 - ord('A');
34	return mb_chr(ord($up[0]) + $offset, 'UTF-8') . mb_chr(ord($up[1]) + $offset, 'UTF-8');
35	}
36
37	public function test_valid_uppercase_code_maps_to_flag(): void
38	{
39	$this->assertSame($this->expected('US'), Util::country_flag_emoji('US'));
40	$this->assertSame($this->expected('DE'), Util::country_flag_emoji('DE'));
41	}
42
43	public function test_lowercase_is_normalised_before_mapping(): void
44	{
45	$this->assertSame(Util::country_flag_emoji('US'), Util::country_flag_emoji('us'));
46	}
47
48	public function test_surrounding_whitespace_is_trimmed(): void
49	{
50	$this->assertSame(Util::country_flag_emoji('GB'), Util::country_flag_emoji(' gb '));
51	}
52
53	/**
54	* @dataProvider nonDerivableProvider
55	* @param mixed $input
56	*/
57	public function test_non_derivable_input_returns_empty_string($input): void
58	{
59	$this->assertSame('', Util::country_flag_emoji($input));
60	}
61
62	/**
63	* @return array<string, array{0: mixed}>
64	*/
65	public static function nonDerivableProvider(): array
66	{
67	return [
68	'empty' => [''],
69	'one letter' => ['U'],
70	'three letters' => ['USA'],
71	'has digit' => ['U1'],
72	'symbol' => ['@!'],
73	'null' => [null],
74	];
75	}
76	}
77