Initial commit after splitting from main project

2026-07-26 17:27:01 +02:00
commit afc5538e56
24 changed files with 1431 additions and 0 deletions
@@ -0,0 +1,91 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tez\Utils\Tests\Fn;
+
+use PHPUnit\Framework\TestCase;
+use Tez\Utils\Fn\Pipeline;
+
+final class PipelineTest extends TestCase
+{
+    // -------------------------------------------------------------------------
+    // process()
+    // -------------------------------------------------------------------------
+
+    public function testProcessPassesValueThroughStages(): void
+    {
+        $result = Pipeline::process(
+            '  Hello World  ',
+            'trim',
+            'strtolower',
+            fn(string $s) => str_replace(' ', '-', $s),
+        );
+
+        self::assertSame('hello-world', $result);
+    }
+
+    public function testProcessWithNoStagesReturnsPayloadUnchanged(): void
+    {
+        self::assertSame(42, Pipeline::process(42));
+    }
+
+    public function testProcessWithSingleStage(): void
+    {
+        self::assertSame('HELLO', Pipeline::process('hello', 'strtoupper'));
+    }
+
+    public function testProcessPassesReturnValueOfEachStageToNext(): void
+    {
+        $log = [];
+
+        Pipeline::process(
+            1,
+            function (int $v) use (&$log): int {
+                $log[] = $v;
+
+                return $v + 1;
+            },
+            function (int $v) use (&$log): int {
+                $log[] = $v;
+
+                return $v + 1;
+            },
+            function (int $v) use (&$log): int {
+                $log[] = $v;
+
+                return $v + 1;
+            },
+        );
+
+        self::assertSame([1, 2, 3], $log);
+    }
+
+    // -------------------------------------------------------------------------
+    // build()
+    // -------------------------------------------------------------------------
+
+    public function testBuildReturnsReusableClosure(): void
+    {
+        $normalize = Pipeline::build(
+            'trim',
+            'strtolower',
+            fn(string $s) => preg_replace('/\s+/', ' ', $s) ?? '',
+        );
+
+        self::assertSame('hello world', $normalize('  Hello   World  '));
+        self::assertSame('foo bar', $normalize('  FOO  BAR  '));
+    }
+
+    public function testBuildWithNoStagesReturnsPayloadUnchanged(): void
+    {
+        $pipe = Pipeline::build();
+
+        self::assertSame('hello', $pipe('hello'));
+    }
+
+    public function testBuildReturnsClosure(): void
+    {
+        self::assertInstanceOf(\Closure::class, Pipeline::build('trim'));
+    }
+}