Split testsuite for unit and inspector based tests (#82)

tests/Unit/Capability/Prompt/Completion/ListCompletionProviderTest.php

@@ -0,0 +1,80 @@
+<?php
+
+/*
+ * This file is part of the official PHP MCP SDK.
+ *
+ * A collaboration between Symfony and the PHP Foundation.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Mcp\Tests\Unit\Capability\Prompt\Completion;
+
+use Mcp\Capability\Prompt\Completion\ListCompletionProvider;
+use PHPUnit\Framework\TestCase;
+
+class ListCompletionProviderTest extends TestCase
+{
+    public function testReturnsAllValuesWhenCurrentValueIsEmpty()
+    {
+        $values = ['apple', 'banana', 'cherry'];
+        $provider = new ListCompletionProvider($values);
+        $result = $provider->getCompletions('');
+
+        $this->assertSame($values, $result);
+    }
+
+    public function testFiltersValuesBasedOnCurrentValuePrefix()
+    {
+        $values = ['apple', 'apricot', 'banana', 'cherry'];
+        $provider = new ListCompletionProvider($values);
+        $result = $provider->getCompletions('ap');
+
+        $this->assertSame(['apple', 'apricot'], $result);
+    }
+
+    public function testReturnsEmptyArrayWhenNoValuesMatch()
+    {
+        $values = ['apple', 'banana', 'cherry'];
+        $provider = new ListCompletionProvider($values);
+        $result = $provider->getCompletions('xyz');
+
+        $this->assertSame([], $result);
+    }
+
+    public function testWorksWithSingleCharacterPrefix()
+    {
+        $values = ['apple', 'banana', 'cherry'];
+        $provider = new ListCompletionProvider($values);
+        $result = $provider->getCompletions('a');
+
+        $this->assertSame(['apple'], $result);
+    }
+
+    public function testIsCaseSensitiveByDefault()
+    {
+        $values = ['Apple', 'apple', 'APPLE'];
+        $provider = new ListCompletionProvider($values);
+        $result = $provider->getCompletions('A');
+
+        $this->assertEquals(['Apple', 'APPLE'], $result);
+    }
+
+    public function testHandlesEmptyValuesArray()
+    {
+        $provider = new ListCompletionProvider([]);
+        $result = $provider->getCompletions('test');
+
+        $this->assertSame([], $result);
+    }
+
+    public function testPreservesArrayOrder()
+    {
+        $values = ['zebra', 'apple', 'banana'];
+        $provider = new ListCompletionProvider($values);
+        $result = $provider->getCompletions('');
+
+        $this->assertSame(['zebra', 'apple', 'banana'], $result);
+    }
+}