48 lines
1.1 KiB
PHP
48 lines
1.1 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Phpml\Tests\Tree\Node;
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use Phpml\Tree\Node\BinaryNode;
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use PHPUnit\Framework\TestCase;
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final class BinaryNodeTest extends TestCase
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{
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public function testSimpleNode(): void
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{
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$node = new BinaryNode();
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self::assertEquals(1, $node->height());
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self::assertEquals(0, $node->balance());
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}
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public function testAttachDetachLeft(): void
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{
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$node = new BinaryNode();
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$node->attachLeft(new BinaryNode());
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self::assertEquals(2, $node->height());
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self::assertEquals(-1, $node->balance());
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$node->detachLeft();
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self::assertEquals(1, $node->height());
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self::assertEquals(0, $node->balance());
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}
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public function testAttachDetachRight(): void
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{
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$node = new BinaryNode();
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$node->attachRight(new BinaryNode());
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self::assertEquals(2, $node->height());
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self::assertEquals(1, $node->balance());
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$node->detachRight();
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self::assertEquals(1, $node->height());
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self::assertEquals(0, $node->balance());
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}
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}
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