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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| <?php | ||
|
|
||
| /** | ||
| * Evaluates JavaScript code and executes it. | ||
| * @param string|JSString $x A String value that contains valid JavaScript code. | ||
| * @return mixed | ||
| */ | ||
| function jsEval($x) { | ||
| if ($x instanceof JSString) { | ||
| // Read $isPrimitive private property using reflection | ||
| $reflection = new ReflectionClass($x); | ||
| $property = $reflection->getProperty('isPrimitive'); | ||
| $property->setAccessible(true); | ||
| $isPrimitive = (bool) $property->getValue($x); | ||
|
|
||
| if (!$isPrimitive) { | ||
| return (string) $x; | ||
| } | ||
| } | ||
|
|
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| return eval(sprintf('return %s;', String($x))); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| <?php | ||
|
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| declare(strict_types=1); | ||
|
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| namespace Tests\PHP\JSString; | ||
|
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| use JSString; | ||
| use PHPUnit\Framework\TestCase; | ||
|
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| final class StringTest extends TestCase { | ||
| function test_Creating_strings(): void { | ||
| $string1 = String("A string primitive"); | ||
| $string2 = String('Also a string primitive'); | ||
| // $string3 = String(`Yet another string primitive`); | ||
| $string4 = new JSString("A String object"); | ||
|
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| self::assertInstanceOf(JSString::class, $string1); | ||
| self::assertInstanceOf(JSString::class, $string2); | ||
| // self::assertInstanceOf(JSString::class, $string3); | ||
| self::assertInstanceOf(JSString::class, $string4); | ||
| } | ||
|
|
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| function test_Character_access(): void { | ||
| self::assertEquals('a', String("cat")->charAt(1)); | ||
| self::assertEquals('a', String("cat")[1]); | ||
| } | ||
|
|
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| function test_Comparing_strings(): void { | ||
| $a = String("a"); | ||
| $b = String("b"); | ||
|
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| self::assertTrue($a < $b); | ||
|
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| $areEqualInUpperCase = function (string $str1, string $str2): bool { | ||
| return String($str1)->toUpperCase() === String($str2)->toUpperCase(); | ||
| }; | ||
|
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| $areEqualInLowerCase = function (string $str1, string $str2): bool { | ||
| return String($str1)->toLowerCase() === String($str2)->toLowerCase(); | ||
| }; | ||
|
|
||
| // TODO | ||
| // self::assertTrue($areEqualInUpperCase("Γ", "ss")); | ||
| self::assertFalse($areEqualInLowerCase("Δ±", "I")); | ||
|
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| $areEqual = function (string $str1, string $str2, string $locale = "en-US"): bool { | ||
| return String($str1)->localeCompare($str2, $locale, ['sensitivity' => 'accent']) === 0; | ||
| }; | ||
|
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| self::assertFalse($areEqual("Γ", "ss", "de")); | ||
| // TODO | ||
| // self::assertTrue($areEqual("Δ±", "I", "tr")); | ||
| } | ||
|
|
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| function test_String_primitives_and_String_objects(): void { | ||
| $strPrim = String("foo"); | ||
| $strPrim2 = String(1); | ||
| $strPrim3 = String(true); | ||
| $strObj = new JSString($strPrim); | ||
|
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| self::assertEquals('1', $strPrim2); | ||
| self::assertEquals('true', $strPrim3); | ||
|
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| self::assertSame('string', gettype((string) $strPrim)); | ||
| self::assertSame('string', gettype((string) $strPrim2)); | ||
| self::assertSame('string', gettype((string) $strPrim3)); | ||
| self::assertSame('object', gettype($strObj)); | ||
|
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| $s1 = String("2 + 2"); // creates a string primitive | ||
| $s2 = new JSString("2 + 2"); // creates a String object | ||
|
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| self::assertSame(4, jsEval($s1)); | ||
| self::assertSame('2 + 2', jsEval($s2)); | ||
|
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| self::assertSame(4, jsEval($s2->valueOf())); | ||
| } | ||
|
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| function test_String_coercion(): void { | ||
| self::assertEquals('string', String('string')); | ||
| self::assertEquals('undefined', String(undefined)); | ||
| self::assertEquals('null', String(null)); | ||
| self::assertEquals('true', String(true)); | ||
| self::assertEquals('false', String(false)); | ||
| // TODO: Numbers are converted with the same algorithm as toString(10). | ||
| // TODO: BigInts are converted with the same algorithm as toString(10). | ||
| // TODO: Symbols throw a TypeError. | ||
| /* | ||
| TODO: Objects are first converted to a primitive by calling its | ||
| [Symbol.toPrimitive]() (with "string" as hint), toString(), and valueOf() | ||
| methods, in that order. The resulting primitive is then converted to a | ||
| string. | ||
| */ | ||
|
|
||
| /* | ||
| TODO: Template literal: `${x}` does exactly the string coercion steps | ||
| explained above for the embedded expression. | ||
| */ | ||
| /* | ||
| TODO: The String() function: String(x) uses the same algorithm to convert | ||
| x, except that Symbols don't throw a TypeError, but return | ||
| "Symbol(description)", where description is the description of the Symbol. | ||
| */ | ||
| /* | ||
| TODO: Using the + operator: "" + x coerces its operand to a primitive | ||
| instead of a string, and, for some objects, has entirely different | ||
| behaviors from normal string coercion. See its reference page for more | ||
| details. | ||
| */ | ||
| } | ||
|
|
||
| /*function test_UTF_16_characters_Unicode_code_points_and_grapheme_clusters(): void { | ||
| String("π")->split(""); // ['\ud83d', '\ude04']; splits into two lone surrogates | ||
| // "Backhand Index Pointing Right: Dark Skin Tone" | ||
| // [..."ππΏ"]; // ['π', 'πΏ'] | ||
| // splits into the basic "Backhand Index Pointing Right" emoji and | ||
| // the "Dark skin tone" emoji | ||
| // "Family: Man, Boy" | ||
| // [..."π¨βπ¦"]; // [ 'π¨', 'β', 'π¦' ] | ||
| // splits into the "Man" and "Boy" emoji, joined by a ZWJ | ||
| // The United Nations flag | ||
| // [..."πΊπ³"]; // [ 'πΊ', 'π³' ] | ||
| // splits into two "region indicator" letters "U" and "N". | ||
| // All flag emojis are formed by joining two region indicator letters | ||
| }*/ | ||
|
|
||
| function test_HTML_wrapper_methods(): void { | ||
| self::assertEquals('<b></b></b>', String('</b>')->bold()); | ||
|
|
||
| self::assertEquals( | ||
| '<a name=""Hello"">foo</a>', | ||
| String("foo")->anchor('"Hello"') | ||
| ); | ||
| } | ||
|
|
||
| function test_String_conversion(): void { | ||
| $nullVar = null; | ||
| // TODO | ||
| // $nullVar->toString(); // TypeError: Cannot read properties of null | ||
| self::assertEquals('null', String($nullVar)); | ||
|
|
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| $undefinedVar = undefined; | ||
| // TODO | ||
| // $undefinedVar->toString(); // TypeError: Cannot read properties of undefined | ||
| self::assertEquals('undefined', String($undefinedVar)); | ||
|
|
||
| } | ||
|
|
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| private function areEqualCaseInsensitive(JSString $str1, JSString $str2): bool { | ||
| return $str1->toUpperCase() === $str2->toUpperCase(); | ||
| } | ||
| } |