95 lines
2.6 KiB
PHP
95 lines
2.6 KiB
PHP
<?php
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use Fhaculty\Graph\Graph;
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use Graphp\Algorithms\Bipartit as AlgorithmBipartit;
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class BipartitTest extends TestCase
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{
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public function testGraphEmpty()
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{
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$graph = new Graph();
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$alg = new AlgorithmBipartit($graph);
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$this->assertTrue($alg->isBipartit());
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$this->assertEquals(array(), $alg->getColors());
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$this->assertEquals(array(0 => array(), 1 => array()), $alg->getColorVertices());
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}
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public function testGraphPairIsBipartit()
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{
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// 1 -> 2
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$graph = new Graph();
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$v1 = $graph->createVertex(1);
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$v2 = $graph->createVertex(2);
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$v1->createEdgeTo($v2);
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$alg = new AlgorithmBipartit($graph);
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$this->assertTrue($alg->isBipartit());
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$this->assertEquals(array(1 => 0, 2 => 1), $alg->getColors());
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$this->assertEquals(array(0 => array(1 => $v1), 1 => array(2 => $v2)), $alg->getColorVertices());
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return $alg;
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}
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/**
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*
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* @param AlgorithmBipartit $alg
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* @depends testGraphPairIsBipartit
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*/
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public function testGraphPairBipartitGroups(AlgorithmBipartit $alg)
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{
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// graph does not have any groups assigned, so its groups are not bipartit
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$this->assertFalse($alg->isBipartitGroups());
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// create a cloned graph with groups assigned according to bipartition
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$graph = $alg->createGraphGroups();
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$this->assertInstanceOf('Fhaculty\Graph\Graph', $graph);
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$alg2 = new AlgorithmBipartit($graph);
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$this->assertTrue($alg2->isBipartitGroups());
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}
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public function testGraphTriangleCycleIsNotBipartit()
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{
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// 1 -> 2 --> 3 --> 1
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$graph = new Graph();
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$v1 = $graph->createVertex(1);
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$v2 = $graph->createVertex(2);
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$v3 = $graph->createVertex(3);
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$v1->createEdgeTo($v2);
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$v2->createEdgeTo($v3);
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$v3->createEdgeTo($v1);
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$alg = new AlgorithmBipartit($graph);
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$this->assertFalse($alg->isBipartit());
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return $alg;
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}
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/**
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*
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* @param AlgorithmBipartit $alg
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* @expectedException UnexpectedValueException
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* @depends testGraphTriangleCycleIsNotBipartit
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*/
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public function testGraphTriangleCycleColorsInvalid(AlgorithmBipartit $alg)
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{
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$alg->getColors();
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}
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/**
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*
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* @param AlgorithmBipartit $alg
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* @expectedException UnexpectedValueException
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* @depends testGraphTriangleCycleIsNotBipartit
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*/
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public function testGraphTriangleCycleColorVerticesInvalid(AlgorithmBipartit $alg)
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{
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$alg->getColorVertices();
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}
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}
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