Change how to stringify booleans

In PHP and most other languages, booleans are represented as "true" or
"false" in lowercase. It's best to keep the same standard in this
library for familiarity.

Signed-off-by: Henrique Moody <henriquemoody@gmail.com>

Author: henriquemoody

src/Stringifiers/BoolStringifier.php

@@ -28,6 +28,6 @@ public function stringify(mixed $raw, int $depth): ?string
             return null;
         }
 
-        return $this->quoter->quote($raw ? 'TRUE' : 'FALSE', $depth);
+        return $this->quoter->quote($raw ? 'true' : 'false', $depth);
     }
 }

tests/integration/stringify-array.phpt

@@ -25,4 +25,4 @@ output([
 ]);
 ?>
 --EXPECT--
-`[1, NULL, [1.0, [resource <stream>, ..., []]], FALSE, [object] (stdClass: []), ...]`
+`[1, NULL, [1.0, [resource <stream>, ..., []]], false, [object] (stdClass: []), ...]`

tests/integration/stringify-bool.phpt

@@ -11,5 +11,5 @@ outputMultiple(
 );
 ?>
 --EXPECT--
-`TRUE`
-`FALSE`
+`true`
+`false`

tests/integration/stringify-object.phpt

@@ -8,4 +8,4 @@ require 'vendor/autoload.php';
 output(new Respect\Stringifier\Test\MyObject());
 ?>
 --EXPECT--
-`[object] (Respect\Stringifier\Test\MyObject: ["foo": TRUE])`
+`[object] (Respect\Stringifier\Test\MyObject: ["foo": true])`

tests/unit/Stringifiers/BoolStringifierTest.php

@@ -13,65 +13,45 @@
 use PHPUnit\Framework\Attributes\CoversClass;
 use PHPUnit\Framework\Attributes\Test;
 use PHPUnit\Framework\TestCase;
-use Respect\Stringifier\Quoter;
 use Respect\Stringifier\Stringifiers\BoolStringifier;
+use Respect\Stringifier\Test\Double\FakeQuoter;
 
 #[CoversClass(BoolStringifier::class)]
 final class BoolStringifierTest extends TestCase
 {
+    private const DEPTH = 0;
+
     #[Test]
-    public function shouldNotConvertToStringWhenRawValueIsNotBoolean(): void
+    public function itShouldNotStringifyWhenRawValueIsNotBoolean(): void
     {
-        $raw = 1;
-        $depth = 0;
-
-        $quoterMock = $this->createMock(Quoter::class);
-        $quoterMock
-            ->expects($this->never())
-            ->method('quote');
-
-        $boolStringifier = new BoolStringifier($quoterMock);
+        $sut = new BoolStringifier(new FakeQuoter());
 
-        self::assertNull($boolStringifier->stringify($raw, $depth));
+        self::assertNull($sut->stringify(1, self::DEPTH));
     }
 
     #[Test]
-    public function shouldConvertToStringWhenRawValueIsTrue(): void
+    public function itShouldStringifyRawValueWhenItIsTrue(): void
     {
-        $raw = true;
-        $depth = 0;
+        $quoter = new FakeQuoter();
 
-        $expected = 'TRUE';
+        $sut = new BoolStringifier($quoter);
 
-        $quoterMock = $this->createMock(Quoter::class);
-        $quoterMock
-            ->expects($this->once())
-            ->method('quote')
-            ->with($expected, $depth)
-            ->willReturn($expected);
+        $actual = $sut->stringify(true, self::DEPTH);
+        $expected = $quoter->quote('true', self::DEPTH);
 
-        $boolStringifier = new BoolStringifier($quoterMock);
-
-        self::assertSame($expected, $boolStringifier->stringify($raw, $depth));
+        self::assertSame($expected, $actual);
     }
 
     #[Test]
-    public function shouldConvertToStringWhenRawValueIsFalse(): void
+    public function itShouldStringifyRawValueWhenItIsFalse(): void
     {
-        $raw = false;
-        $depth = 0;
-
-        $expected = 'FALSE';
+        $quoter = new FakeQuoter();
 
-        $quoterMock = $this->createMock(Quoter::class);
-        $quoterMock
-            ->expects($this->once())
-            ->method('quote')
-            ->with($expected, $depth)
-            ->willReturn($expected);
+        $sut = new BoolStringifier($quoter);
 
-        $boolStringifier = new BoolStringifier($quoterMock);
+        $actual = $sut->stringify(false, self::DEPTH);
+        $expected = $quoter->quote('false', self::DEPTH);
 
-        self::assertSame($expected, $boolStringifier->stringify($raw, $depth));
+        self::assertSame($expected, $actual);
     }
 }