- Added matrix and polynom classes for future use in statistical datasets

1 files changed, 263 insertions, 0 deletions

diff --git a/tests/matrix_test.php b/tests/matrix_test.php
new file mode 100644
index 0000000..0afd631
--- /dev/null
+++ b/tests/matrix_test.php
@@ -0,0 +1,263 @@
+<?php
+/**
+ * ezcGraphMatrixTest 
+ * 
+ * @package Graph
+ * @version //autogen//
+ * @subpackage Tests
+ * @copyright Copyright (C) 2005, 2006 eZ systems as. All rights reserved.
+ * @license http://ez.no/licenses/new_bsd New BSD License
+ */
+
+/**
+ * Tests for ezcGraph class.
+ * 
+ * @package ImageAnalysis
+ * @subpackage Tests
+ */
+class ezcGraphMatrixTest extends ezcTestCase
+{
+
+	public static function suite()
+	{
+		return new ezcTestSuite( "ezcGraphMatrixTest" );
+	}
+
+    /**
+     * setUp 
+     * 
+     * @access public
+     */
+    public function setUp()
+    {
+    }
+
+    /**
+     * tearDown 
+     * 
+     * @access public
+     */
+    public function tearDown()
+    {
+    }
+
+    public function testCreateIdentityMatrix()
+    {
+        $matrix = new ezcGraphMatrix();
+
+        $this->assertEquals(
+            array(
+                array( 1, 0, 0 ),
+                array( 0, 1, 0 ),
+                array( 0, 0, 1 ),
+            ),
+            $this->getAttribute( $matrix, 'matrix' )
+        );
+    }
+
+    public function testCreateCustomIdentityMatrix()
+    {
+        $matrix = new ezcGraphMatrix( 2, 4 );
+
+        $this->assertEquals(
+            array(
+                array( 1, 0, 0, 0 ),
+                array( 0, 1, 0, 0 ),
+            ),
+            $this->getAttribute( $matrix, 'matrix' )
+        );
+    }
+
+    public function testCreateCustomMatrix()
+    {
+        $matrix = new ezcGraphMatrix( 2, 4, array( array( 1, 0, 5 ), array( 6, -1, -3, .5 ) ) );
+
+        $this->assertEquals(
+            array(
+                array( 1, 0, 5, 0 ),
+                array( 6, -1, -3, .5 ),
+            ),
+            $this->getAttribute( $matrix, 'matrix' )
+        );
+    }
+
+    public function testGetMatrixValue()
+    {
+        $matrix = new ezcGraphMatrix( );
+
+        $this->assertEquals(
+            1,
+            $matrix->get( 1, 1 )
+        );
+    }
+
+    public function testSetMatrixValue()
+    {
+        $matrix = new ezcGraphMatrix( );
+
+        $matrix->set( 1, 2, .45 );
+
+        $this->assertEquals(
+            .45,
+            $matrix->get( 1, 2 )
+        );
+    }
+
+    public function testSetInvalidMatrixValue()
+    {
+        $matrix = new ezcGraphMatrix( );
+
+        try
+        {
+            $matrix->set( 1, 32, .45 );
+        }
+        catch ( ezcGraphMatrixOutOfBoundingsException $e )
+        {
+            return true;
+        }
+
+        $this->fail( 'Expected ezcGraphMatrixOutOfBoundingsException.' );
+    }
+
+    public function testGetInvalidMatrixValue()
+    {
+        $matrix = new ezcGraphMatrix( );
+
+        try
+        {
+            $matrix->get( 1, 32 );
+        }
+        catch ( ezcGraphMatrixOutOfBoundingsException $e )
+        {
+            return true;
+        }
+
+        $this->fail( 'Expected ezcGraphMatrixOutOfBoundingsException.' );
+    }
+
+    public function testAddMatrices()
+    {
+        $matrix = new ezcGraphMatrix();
+        $matrix->add( new ezcGraphMatrix() );
+
+        $this->assertEquals(
+            array(
+                array( 2, 0, 0 ),
+                array( 0, 2, 0 ),
+                array( 0, 0, 2 ),
+            ),
+            $this->getAttribute( $matrix, 'matrix' )
+        );
+    }
+
+    public function testDiffMatrices()
+    {
+        $matrix = new ezcGraphMatrix();
+        $matrix->diff( new ezcGraphMatrix() );
+
+        $this->assertEquals(
+            array(
+                array( 0, 0, 0 ),
+                array( 0, 0, 0 ),
+                array( 0, 0, 0 ),
+            ),
+            $this->getAttribute( $matrix, 'matrix' )
+        );
+    }
+
+    public function testAddIncompatibleMatrices()
+    {
+        $matrix = new ezcGraphMatrix();
+
+        try
+        {
+            $matrix->add( new ezcGraphMatrix( 4, 4 ) );
+        }
+        catch ( ezcGraphMatrixInvalidDimensionsException $e )
+        {
+            return true;
+        }
+
+        $this->fail( 'Expected ezcGraphMatrixInvalidDimensionsException.' );
+    }
+
+    public function testDiffIncompatibleMatrices()
+    {
+        $matrix = new ezcGraphMatrix();
+
+        try
+        {
+            $matrix->add( new ezcGraphMatrix( 4, 4 ) );
+        }
+        catch ( ezcGraphMatrixInvalidDimensionsException $e )
+        {
+            return true;
+        }
+
+        $this->fail( 'Expected ezcGraphMatrixInvalidDimensionsException.' );
+    }
+
+    public function testScalarMultiplication()
+    {
+        $matrix = new ezcGraphMatrix();
+        $matrix->scalar( -.5 );
+
+        $this->assertEquals(
+            array(
+                array( -.5, 0, 0 ),
+                array( 0, -.5, 0 ),
+                array( 0, 0, -.5 ),
+            ),
+            $this->getAttribute( $matrix, 'matrix' )
+        );
+    }
+
+    public function testMatrixMultiplication()
+    {
+        $a = new ezcGraphMatrix( 2, 3, array(
+            array( 1, 2, 3 ),
+            array( 4, 5, 6 ),
+        ) );
+        $b = new ezcGraphMatrix( 3, 2, array(
+            array( 6, -1 ),
+            array( 3, 2 ),
+            array( 0, -3 ),
+        ) );
+
+        $c = $a->multiply( $b );
+
+        $this->assertEquals(
+            array(
+                array( 12, -6 ),
+                array( 39, -12 ),
+            ),
+            $this->getAttribute( $c, 'matrix' )
+        );
+    }
+
+    public function testMatrixMultiplication2()
+    {
+        $a = new ezcGraphMatrix( 2, 3, array(
+            array( 1, 2, 3 ),
+            array( 4, 5, 6 ),
+        ) );
+        $b = new ezcGraphMatrix( 3, 3, array(
+            array( 6, -1 ),
+            array( 3, 2 ),
+            array( 0, -3 ),
+        ) );
+
+        try
+        {
+            $a->multiply( $b );
+        }
+        catch( ezcGraphMatrixInvalidDimensionsException $e )
+        {
+            return true;
+        }
+
+        $this->fail( 'Expected ezcGraphMatrixInvalidDimensionsException.' );
+    }
+}
+
+?>