DecimalMathTest::roundToDigitProvider() - Code Metrics - Inspection of "Fix decimal string rounding algoithm. (#69)" - DataValues/Number - Measure and Improve Code Quality continuously with Scrutinizer

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by no

created 2016-07-15 12:27 UTC

DecimalMathTest::roundToDigitProvider() B

↳ Parent: DecimalMathTest

Complexity

Conditions	1
Paths	1

Size

Total Lines	81
Code Lines	61

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	1	Features	0

Metric	Value
c	3
b	1
f	0
dl	0
loc	81
rs	8.8076
cc	1
eloc	61
nc	1
nop	0

How to fix Long Method

<?php

namespace DataValues\Tests;

use DataValues\DecimalMath;
use DataValues\DecimalValue;

/**
 * @covers DataValues\DecimalMath
 *
 * @group DataValue
 * @group DataValueExtensions
 *
 * @license GPL-2.0+
 * @author Daniel Kinzler
 */
class DecimalMathTest extends \PHPUnit_Framework_TestCase {

	/**
	 * @dataProvider bumpProvider
	 */
	public function testBump( DecimalValue $value, $expected ) {
		$math = new DecimalMath();
		$actual = $math->bump( $value );
		$this->assertSame( $expected, $actual->getValue() );
	}

	public function bumpProvider() {
		return array(
			array( new DecimalValue(  '+0' ),   '+1' ),
			array( new DecimalValue(  '-0' ),   '+1' ),
			array( new DecimalValue(  '+0.0' ), '+0.1' ),
			array( new DecimalValue(  '-0.0' ), '+0.1' ),
			array( new DecimalValue(  '+1' ),   '+2' ),
			array( new DecimalValue(  '-1' ),   '-2' ),
			array( new DecimalValue( '+10' ),  '+11' ),
			array( new DecimalValue( '-10' ),  '-11' ),
			array( new DecimalValue(  '+9' ),  '+10' ),
			array( new DecimalValue(  '-9' ),  '-10' ),
			array( new DecimalValue( '+0.01' ), '+0.02' ),
			array( new DecimalValue( '-0.01' ), '-0.02' ),
			array( new DecimalValue( '+0.09' ), '+0.10' ),
			array( new DecimalValue( '-0.09' ), '-0.10' ),
			array( new DecimalValue( '+0.9' ),  '+1.0' ),
			array( new DecimalValue( '-0.9' ),  '-1.0' ),
		);
	}

	/**
	 * @dataProvider slumpProvider
	 */
	public function testSlump( DecimalValue $value, $expected ) {
		$math = new DecimalMath();
		$actual = $math->slump( $value );
		$this->assertSame( $expected, $actual->getValue() );
	}

	public function slumpProvider() {
		return array(
			array( new DecimalValue(  '+0' ),    '-1' ),
			array( new DecimalValue(  '-0' ),    '-1' ),
			array( new DecimalValue(  '+0.0' ),  '-0.1' ),
			array( new DecimalValue(  '-0.0' ),  '-0.1' ),
			array( new DecimalValue(  '+0.00' ),  '-0.01' ),
			array( new DecimalValue(  '-0.00' ),  '-0.01' ),
			array( new DecimalValue(  '+1' ),    '+0' ),
			array( new DecimalValue(  '-1' ),    '+0' ),
			array( new DecimalValue(  '+1.0' ),  '+0.9' ),
			array( new DecimalValue(  '-1.0' ),  '-0.9' ),
			array( new DecimalValue(  '+0.1' ),  '+0.0' ),
			array( new DecimalValue(  '-0.1' ),  '+0.0' ), // zero is always normalized to be positive
			array( new DecimalValue(  '+0.01' ), '+0.00' ),
			array( new DecimalValue(  '-0.01' ), '+0.00' ), // zero is always normalized to be positive
			array( new DecimalValue( '+12' ),   '+11' ),
			array( new DecimalValue( '-12' ),   '-11' ),
			array( new DecimalValue( '+10' ),    '+9' ),
			array( new DecimalValue( '-10' ),    '-9' ),
			array( new DecimalValue('+100' ),   '+99' ),
			array( new DecimalValue('-100' ),   '-99' ),
			array( new DecimalValue(  '+0.02' ), '+0.01' ),
			array( new DecimalValue(  '-0.02' ), '-0.01' ),
			array( new DecimalValue(  '+0.10' ), '+0.09' ),
			array( new DecimalValue(  '-0.10' ), '-0.09' ),
		);
	}

	/**
	 * @dataProvider productProvider
	 */
	public function testProduct( DecimalValue $a, DecimalValue $b, $value ) {
		$math = new DecimalMath();

		$actual = $math->product( $a, $b );
		$this->assertEquals( $value, $actual->getValue() );

		$actual = $math->product( $b, $a );
		$this->assertEquals( $value, $actual->getValue() );
	}

	public function productProvider() {
		return array(
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+0'  ), '+0' ),
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+1'  ), '+0' ),
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+2'  ), '+0' ),

			array( new DecimalValue(  '+1'  ), new DecimalValue(  '+0'  ), '+0' ),
			array( new DecimalValue(  '+1'  ), new DecimalValue(  '+1'  ), '+1' ),
			array( new DecimalValue(  '+1'  ), new DecimalValue(  '+2'  ), '+2' ),

			array( new DecimalValue(  '+2'  ), new DecimalValue(  '+0'  ), '+0' ),
			array( new DecimalValue(  '+2'  ), new DecimalValue(  '+1'  ), '+2' ),
			array( new DecimalValue(  '+2'  ), new DecimalValue(  '+2'  ), '+4' ),

			array( new DecimalValue(  '+0.5'  ), new DecimalValue(  '+0'  ), '+0' ),
			array( new DecimalValue(  '+0.5'  ), new DecimalValue(  '+1'  ), '+0.5' ),
			array( new DecimalValue(  '+0.5'  ), new DecimalValue(  '+2'  ), '+1' ),
		);
	}

	/**
	 * @dataProvider productWithBCProvider
	 */
	public function testProductWithBC( DecimalValue $a, DecimalValue $b, $value ) {
		$math = new DecimalMath();

		if ( !$math->getUseBC() ) {
			$this->markTestSkipped( 'bcmath library not available' );
		}

		$actual = $math->product( $a, $b );
		$this->assertEquals( $value, $actual->getValue() );

		$actual = $math->product( $b, $a );
		$this->assertEquals( $value, $actual->getValue() );
	}

	public function productWithBCProvider() {
		return array(
			array( new DecimalValue(  '+0.1'  ), new DecimalValue(  '+0.1'  ), '+0.01' ),
			array( new DecimalValue(  '-5000000'  ), new DecimalValue(  '-0.1'  ), '+500000.0' ),
		);
	}

	/**
	 * @dataProvider sumProvider
	 */
	public function testSum( DecimalValue $a, DecimalValue $b, $value ) {
		$math = new DecimalMath();

		$actual = $math->sum( $a, $b );
		$this->assertEquals( $value, $actual->getValue() );

		$actual = $math->sum( $b, $a );
		$this->assertEquals( $value, $actual->getValue() );
	}

	public function sumProvider() {
		return array(
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+0'  ), '+0' ),
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+1'  ), '+1' ),
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+2'  ), '+2' ),

			array( new DecimalValue(  '+2'  ), new DecimalValue(  '+0'  ), '+2' ),
			array( new DecimalValue(  '+2'  ), new DecimalValue(  '+1'  ), '+3' ),
			array( new DecimalValue(  '+2'  ), new DecimalValue(  '+2'  ), '+4' ),

			array( new DecimalValue(  '+0.5'  ), new DecimalValue(  '+0'  ),  '+0.5' ),
			array( new DecimalValue(  '+0.5'  ), new DecimalValue(  '+0.5' ), '+1.0' ),
			array( new DecimalValue(  '+0.5'  ), new DecimalValue(  '+2'  ),  '+2.5' ),
		);
	}

	/**
	 * @dataProvider minMaxProvider
	 */
	public function testMin( DecimalValue $min, DecimalValue $max ) {
		$math = new DecimalMath();

		$actual = $math->min( $min, $max );
		$this->assertEquals( $min->getValue(), $actual->getValue() );

		$actual = $math->min( $max, $min );
		$this->assertEquals( $min->getValue(), $actual->getValue() );
	}

	/**
	 * @dataProvider minMaxProvider
	 */
	public function testMax( DecimalValue $min, DecimalValue $max ) {
		$math = new DecimalMath();

		$actual = $math->max( $min, $max );
		$this->assertEquals( $max->getValue(), $actual->getValue() );

		$actual = $math->max( $max, $min );
		$this->assertEquals( $max->getValue(), $actual->getValue() );
	}

	public function minMaxProvider() {
		return array(
			array( new DecimalValue(  '+0'  ), new DecimalValue(  '+0'  ) ),
			array( new DecimalValue(  '+1'  ), new DecimalValue(  '+1'  ) ),
			array( new DecimalValue(  '-0.2'  ), new DecimalValue(  '-0.2'  ) ),

			array( new DecimalValue(  '-2'  ), new DecimalValue(  '+1'  ) ),
			array( new DecimalValue(  '+0.33333'  ), new DecimalValue(  '+1'  ) ),
		);
	}

	/**
	 * @dataProvider roundToDigitProvider
	 */
	public function testRoundToDigit( DecimalValue $value, $digits, $expected ) {
		$math = new DecimalMath();

		$actual = $math->roundToDigit( $value, $digits );
		$this->assertSame( $expected, $actual->getValue() );
	}

	public function roundToDigitProvider() {
		$argLists = array();

		//NOTE: Rounding is applied using the "round half away from zero" logic.

		$argLists[] = array( new DecimalValue( '-2' ), 0, '+0' ); // no digits left

		$argLists[] = array( new DecimalValue( '+0' ), 1, '+0' );
		$argLists[] = array( new DecimalValue( '+0' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 1, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 3, '+0.0' );

		$argLists[] = array( new DecimalValue( '+1.45' ), 1, '+1' );
		$argLists[] = array( new DecimalValue( '+1.45' ), 3, '+1.5' );
		$argLists[] = array( new DecimalValue( '+1.45' ), 4, '+1.45' );

		$argLists[] = array( new DecimalValue( '-1.45' ), 1, '-1' );
		$argLists[] = array( new DecimalValue( '-1.45' ), 3, '-1.5' );
		$argLists[] = array( new DecimalValue( '-1.45' ), 4, '-1.45' );

		$argLists[] = array( new DecimalValue( '+9.99' ), 1, '+10' );
		$argLists[] = array( new DecimalValue( '+9.99' ), 3, '+10.0' );
		$argLists[] = array( new DecimalValue( '+9.99' ), 4, '+9.99' );

		$argLists[] = array( new DecimalValue( '+135.7' ), 1, '+100' );
		$argLists[] = array( new DecimalValue( '+135.7' ), 3, '+136' );
		$argLists[] = array( new DecimalValue( '+135.7' ), 5, '+135.7' );

		$argLists[] = array( new DecimalValue( '-2' ), 1, '-2' );
		$argLists[] = array( new DecimalValue( '-2' ), 2, '-2' );

		$argLists[] = array( new DecimalValue( '+23' ), 1, '+20' );
		$argLists[] = array( new DecimalValue( '+23' ), 2, '+23' );
		$argLists[] = array( new DecimalValue( '+23' ), 3, '+23' );
		$argLists[] = array( new DecimalValue( '+23' ), 4, '+23' );

		$argLists[] = array( new DecimalValue( '-234' ), 1, '-200' );
		$argLists[] = array( new DecimalValue( '-234' ), 2, '-230' );
		$argLists[] = array( new DecimalValue( '-234' ), 3, '-234' );

		$argLists[] = array( new DecimalValue( '-2.0' ), 1, '-2' );
		$argLists[] = array( new DecimalValue( '-2.0' ), 2, '-2' );   // not padded (can't end with decimal point)
		$argLists[] = array( new DecimalValue( '-2.0' ), 3, '-2.0' );
		$argLists[] = array( new DecimalValue( '-2.0' ), 4, '-2.0' ); // no extra digits

		$argLists[] = array( new DecimalValue( '-2.000' ), 1, '-2' );
		$argLists[] = array( new DecimalValue( '-2.000' ), 2, '-2' );
		$argLists[] = array( new DecimalValue( '-2.000' ), 3, '-2.0' );
		$argLists[] = array( new DecimalValue( '-2.000' ), 4, '-2.00' );

		$argLists[] = array( new DecimalValue( '+2.5' ), 1, '+3' ); // rounded up
		$argLists[] = array( new DecimalValue( '+2.5' ), 2, '+3' );
		$argLists[] = array( new DecimalValue( '+2.5' ), 3, '+2.5' );
		$argLists[] = array( new DecimalValue( '+2.5' ), 4, '+2.5' );

		$argLists[] = array( new DecimalValue( '+2.05' ), 1, '+2' );
		$argLists[] = array( new DecimalValue( '+2.05' ), 2, '+2' );
		$argLists[] = array( new DecimalValue( '+2.05' ), 3, '+2.1' ); // rounded up
		$argLists[] = array( new DecimalValue( '+2.05' ), 4, '+2.05' );

		$argLists[] = array( new DecimalValue( '-23.05' ), 1, '-20' );
		$argLists[] = array( new DecimalValue( '-23.05' ), 2, '-23' );
		$argLists[] = array( new DecimalValue( '-23.05' ), 3, '-23' ); // not padded (can't end with decimal point)
		$argLists[] = array( new DecimalValue( '-23.05' ), 4, '-23.1' ); // rounded down
		$argLists[] = array( new DecimalValue( '-23.05' ), 5, '-23.05' );

		$argLists[] = array( new DecimalValue( '+9.33' ), 1, '+9' ); // no rounding
		$argLists[] = array( new DecimalValue( '+9.87' ), 1, '+10' ); // rounding ripples up
		$argLists[] = array( new DecimalValue( '+9.87' ), 3, '+9.9' ); // rounding ripples up
		$argLists[] = array( new DecimalValue( '+99' ), 1, '+100' ); // rounding ripples up
		$argLists[] = array( new DecimalValue( '+99' ), 2, '+99' ); // rounding ripples up

		$argLists[] = array( new DecimalValue( '-9.33' ), 1, '-9' ); // no rounding
		$argLists[] = array( new DecimalValue( '-9.87' ), 1, '-10' ); // rounding ripples down
		$argLists[] = array( new DecimalValue( '-9.87' ), 3, '-9.9' ); // rounding ripples down
		$argLists[] = array( new DecimalValue( '-99' ), 1, '-100' ); // rounding ripples down
		$argLists[] = array( new DecimalValue( '-99' ), 2, '-99' ); // rounding ripples down

		return $argLists;
	}

	/**
	 * @dataProvider getPositionForExponentProvider
	 */
	public function testGetPositionForExponent( $exponent, DecimalValue $decimal, $expected ) {
		$math = new DecimalMath();

		$actual = $math->getPositionForExponent( $exponent, $decimal );
		$this->assertSame( $expected, $actual );
	}

	public function getPositionForExponentProvider() {
		$argLists = array();

		$argLists[] = array(  0, new DecimalValue( '+0' ), 1 );
		$argLists[] = array(  1, new DecimalValue( '+10.25' ), 1 );
		$argLists[] = array(  1, new DecimalValue( '-100.25' ), 2 );
		$argLists[] = array(  2, new DecimalValue( '+100.25' ), 1 );
		$argLists[] = array( -2, new DecimalValue( '+0.234' ), 4 );
		$argLists[] = array( -2, new DecimalValue( '+11.234' ), 5 );

		return $argLists;
	}

	/**
	 * @dataProvider roundToExponentProvider
	 */
	public function testRoundToExponent( DecimalValue $value, $digits, $expected ) {
		$math = new DecimalMath();

		$actual = $math->roundToExponent( $value, $digits );
		$this->assertSame( $expected, $actual->getValue() );
	}

	public function roundToExponentProvider() {
		$argLists = array();

		//NOTE: Rounding is applied using the "round half away from zero" logic.

		$argLists[] = array( new DecimalValue( '+0' ), 0, '+0' );
		$argLists[] = array( new DecimalValue( '+0' ), 1, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 0, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), -5, '+0.0' ); // no extra digits

		$argLists[] = array( new DecimalValue( '+1.45' ), 0, '+1' );
		$argLists[] = array( new DecimalValue( '+1.45' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+1.45' ), -5, '+1.45' );

		$argLists[] = array( new DecimalValue( '+99.99' ), 0, '+100' );
		$argLists[] = array( new DecimalValue( '+99.99' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+99.99' ), -1, '+100.0' );
		$argLists[] = array( new DecimalValue( '+99.99' ), -5, '+99.99' );

		$argLists[] = array( new DecimalValue( '-2' ), 0, '-2' );
		$argLists[] = array( new DecimalValue( '-2' ), -1, '-2' );
		$argLists[] = array( new DecimalValue( '-2' ), 1, '+0' );

		$argLists[] = array( new DecimalValue( '+23' ), 0, '+23' );
		$argLists[] = array( new DecimalValue( '+23' ), 1, '+20' );
		$argLists[] = array( new DecimalValue( '+23' ), 2, '+0' );

		$argLists[] = array( new DecimalValue( '-234' ), 2, '-200' );
		$argLists[] = array( new DecimalValue( '-234' ), 1, '-230' );
		$argLists[] = array( new DecimalValue( '-234' ), 0, '-234' );

		$argLists[] = array( new DecimalValue( '-2.0' ), 0, '-2' );
		$argLists[] = array( new DecimalValue( '-2.0' ), -1, '-2.0' );
		$argLists[] = array( new DecimalValue( '-2.0' ), -2, '-2.0' ); // no extra digits

		$argLists[] = array( new DecimalValue( '-2.000' ), 0, '-2' );
		$argLists[] = array( new DecimalValue( '-2.000' ), -1, '-2.0' );
		$argLists[] = array( new DecimalValue( '-2.000' ), -2, '-2.00' );

		$argLists[] = array( new DecimalValue( '+2.5' ), 0, '+3' ); // rounded up
		$argLists[] = array( new DecimalValue( '+2.5' ), -1, '+2.5' );
		$argLists[] = array( new DecimalValue( '+2.5' ), -2, '+2.5' ); // no extra digits

		$argLists[] = array( new DecimalValue( '+2.05' ), 0, '+2' );
		$argLists[] = array( new DecimalValue( '+2.05' ), -1, '+2.1' ); // rounded up
		$argLists[] = array( new DecimalValue( '+2.05' ), -2, '+2.05' );

		$argLists[] = array( new DecimalValue( '-23.05' ), 1, '-20' );
		$argLists[] = array( new DecimalValue( '-23.05' ), 0, '-23' );

		$argLists[] = array( new DecimalValue( '-23.05' ), -1, '-23.1' ); // rounded down
		$argLists[] = array( new DecimalValue( '-23.05' ), -2, '-23.05' );

		$argLists[] = array( new DecimalValue( '+9.33' ), 0, '+9' ); // no rounding
		$argLists[] = array( new DecimalValue( '+9.87' ), 0, '+10' ); // rounding ripples up
		$argLists[] = array( new DecimalValue( '+9.87' ), -1, '+9.9' ); // rounding ripples up
		$argLists[] = array( new DecimalValue( '+99' ), 1, '+100' ); // rounding ripples up
		$argLists[] = array( new DecimalValue( '+99' ), 0, '+99' ); // rounding ripples up

		$argLists[] = array( new DecimalValue( '-9.33' ), 0, '-9' ); // no rounding
		$argLists[] = array( new DecimalValue( '-9.87' ), 0, '-10' ); // rounding ripples down
		$argLists[] = array( new DecimalValue( '-9.87' ), -1, '-9.9' ); // rounding ripples down
		$argLists[] = array( new DecimalValue( '-99' ), 1, '-100' ); // rounding ripples down
		$argLists[] = array( new DecimalValue( '-99' ), 0, '-99' ); // rounding ripples down

		return $argLists;
	}

	/**
	 * @dataProvider shiftProvider
	 */
	public function testShift( DecimalValue $value, $exponent, $expected ) {
		$math = new DecimalMath();

		$actual = $math->shift( $value, $exponent );
		$this->assertEquals( $expected, $actual->getValue() );
	}

	public function shiftProvider() {
		$argLists = array();

		$argLists[] = array( new DecimalValue( '+0' ), 0, '+0' );
		$argLists[] = array( new DecimalValue( '+0' ), 1, '+0' );
		$argLists[] = array( new DecimalValue( '+0' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+0' ), -1, '+0.0' );
		$argLists[] = array( new DecimalValue( '+0' ), -2, '+0.00' );

		$argLists[] = array( new DecimalValue( '+0.0' ), 0, '+0.0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 1, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), 2, '+0' );
		$argLists[] = array( new DecimalValue( '+0.0' ), -1, '+0.00' );
		$argLists[] = array( new DecimalValue( '+0.0' ), -2, '+0.000' );

		$argLists[] = array( new DecimalValue( '-125' ), 0, '-125' );
		$argLists[] = array( new DecimalValue( '-125' ), 1, '-1250' );
		$argLists[] = array( new DecimalValue( '-125' ), 2, '-12500' );
		$argLists[] = array( new DecimalValue( '-125' ), -1, '-12.5' );
		$argLists[] = array( new DecimalValue( '-125' ), -2, '-1.25' );
		$argLists[] = array( new DecimalValue( '-125' ), -3, '-0.125' );
		$argLists[] = array( new DecimalValue( '-125' ), -4, '-0.0125' );

		$argLists[] = array( new DecimalValue( '-2.5' ), 0, '-2.5' );
		$argLists[] = array( new DecimalValue( '-2.5' ), 1, '-25' );
		$argLists[] = array( new DecimalValue( '-2.5' ), 2, '-250' );
		$argLists[] = array( new DecimalValue( '-2.5' ), -1, '-0.25' );
		$argLists[] = array( new DecimalValue( '-2.5' ), -2, '-0.025' );
		$argLists[] = array( new DecimalValue( '-2.5' ), -3, '-0.0025' );

		$argLists[] = array( new DecimalValue( '+5' ), -4, '+0.0005' );
		$argLists[] = array( new DecimalValue( '+5.0' ), -4, '+0.00050' );
		$argLists[] = array( new DecimalValue( '+5.00' ), -4, '+0.000500' );

		return $argLists;
	}

}


1			<?php
2
3			namespace DataValues\Tests;
4
5			use DataValues\DecimalMath;
6			use DataValues\DecimalValue;
7
8			/**
9			* @covers DataValues\DecimalMath
10			*
11			* @group DataValue
12			* @group DataValueExtensions
13			*
14			* @license GPL-2.0+
15			* @author Daniel Kinzler
16			*/
17			class DecimalMathTest extends \PHPUnit_Framework_TestCase {
18
19			/**
20			* @dataProvider bumpProvider
21			*/
22			public function testBump( DecimalValue $value, $expected ) {
23			$math = new DecimalMath();
24			$actual = $math->bump( $value );
25			$this->assertSame( $expected, $actual->getValue() );
26			}
27
28			public function bumpProvider() {
29			return array(
30			array( new DecimalValue( '+0' ), '+1' ),
31			array( new DecimalValue( '-0' ), '+1' ),
32			array( new DecimalValue( '+0.0' ), '+0.1' ),
33			array( new DecimalValue( '-0.0' ), '+0.1' ),
34			array( new DecimalValue( '+1' ), '+2' ),
35			array( new DecimalValue( '-1' ), '-2' ),
36			array( new DecimalValue( '+10' ), '+11' ),
37			array( new DecimalValue( '-10' ), '-11' ),
38			array( new DecimalValue( '+9' ), '+10' ),
39			array( new DecimalValue( '-9' ), '-10' ),
40			array( new DecimalValue( '+0.01' ), '+0.02' ),
41			array( new DecimalValue( '-0.01' ), '-0.02' ),
42			array( new DecimalValue( '+0.09' ), '+0.10' ),
43			array( new DecimalValue( '-0.09' ), '-0.10' ),
44			array( new DecimalValue( '+0.9' ), '+1.0' ),
45			array( new DecimalValue( '-0.9' ), '-1.0' ),
46			);
47			}
48
49			/**
50			* @dataProvider slumpProvider
51			*/
52			public function testSlump( DecimalValue $value, $expected ) {
53			$math = new DecimalMath();
54			$actual = $math->slump( $value );
55			$this->assertSame( $expected, $actual->getValue() );
56			}
57
58			public function slumpProvider() {
59			return array(
60			array( new DecimalValue( '+0' ), '-1' ),
61			array( new DecimalValue( '-0' ), '-1' ),
62			array( new DecimalValue( '+0.0' ), '-0.1' ),
63			array( new DecimalValue( '-0.0' ), '-0.1' ),
64			array( new DecimalValue( '+0.00' ), '-0.01' ),
65			array( new DecimalValue( '-0.00' ), '-0.01' ),
66			array( new DecimalValue( '+1' ), '+0' ),
67			array( new DecimalValue( '-1' ), '+0' ),
68			array( new DecimalValue( '+1.0' ), '+0.9' ),
69			array( new DecimalValue( '-1.0' ), '-0.9' ),
70			array( new DecimalValue( '+0.1' ), '+0.0' ),
71			array( new DecimalValue( '-0.1' ), '+0.0' ), // zero is always normalized to be positive
72			array( new DecimalValue( '+0.01' ), '+0.00' ),
73			array( new DecimalValue( '-0.01' ), '+0.00' ), // zero is always normalized to be positive
74			array( new DecimalValue( '+12' ), '+11' ),
75			array( new DecimalValue( '-12' ), '-11' ),
76			array( new DecimalValue( '+10' ), '+9' ),
77			array( new DecimalValue( '-10' ), '-9' ),
78			array( new DecimalValue('+100' ), '+99' ),
79			array( new DecimalValue('-100' ), '-99' ),
80			array( new DecimalValue( '+0.02' ), '+0.01' ),
81			array( new DecimalValue( '-0.02' ), '-0.01' ),
82			array( new DecimalValue( '+0.10' ), '+0.09' ),
83			array( new DecimalValue( '-0.10' ), '-0.09' ),
84			);
85			}
86
87			/**
88			* @dataProvider productProvider
89			*/
90			public function testProduct( DecimalValue $a, DecimalValue $b, $value ) {
91			$math = new DecimalMath();
92
93			$actual = $math->product( $a, $b );
94			$this->assertEquals( $value, $actual->getValue() );
95
96			$actual = $math->product( $b, $a );
97			$this->assertEquals( $value, $actual->getValue() );
98			}
99
100			public function productProvider() {
101			return array(
102			array( new DecimalValue( '+0' ), new DecimalValue( '+0' ), '+0' ),
103			array( new DecimalValue( '+0' ), new DecimalValue( '+1' ), '+0' ),
104			array( new DecimalValue( '+0' ), new DecimalValue( '+2' ), '+0' ),
105
106			array( new DecimalValue( '+1' ), new DecimalValue( '+0' ), '+0' ),
107			array( new DecimalValue( '+1' ), new DecimalValue( '+1' ), '+1' ),
108			array( new DecimalValue( '+1' ), new DecimalValue( '+2' ), '+2' ),
109
110			array( new DecimalValue( '+2' ), new DecimalValue( '+0' ), '+0' ),
111			array( new DecimalValue( '+2' ), new DecimalValue( '+1' ), '+2' ),
112			array( new DecimalValue( '+2' ), new DecimalValue( '+2' ), '+4' ),
113
114			array( new DecimalValue( '+0.5' ), new DecimalValue( '+0' ), '+0' ),
115			array( new DecimalValue( '+0.5' ), new DecimalValue( '+1' ), '+0.5' ),
116			array( new DecimalValue( '+0.5' ), new DecimalValue( '+2' ), '+1' ),
117			);
118			}
119
120			/**
121			* @dataProvider productWithBCProvider
122			*/
123			public function testProductWithBC( DecimalValue $a, DecimalValue $b, $value ) {
124			$math = new DecimalMath();
125
126			if ( !$math->getUseBC() ) {
127			$this->markTestSkipped( 'bcmath library not available' );
128			}
129
130			$actual = $math->product( $a, $b );
131			$this->assertEquals( $value, $actual->getValue() );
132
133			$actual = $math->product( $b, $a );
134			$this->assertEquals( $value, $actual->getValue() );
135			}
136
137			public function productWithBCProvider() {
138			return array(
139			array( new DecimalValue( '+0.1' ), new DecimalValue( '+0.1' ), '+0.01' ),
140			array( new DecimalValue( '-5000000' ), new DecimalValue( '-0.1' ), '+500000.0' ),
141			);
142			}
143
144			/**
145			* @dataProvider sumProvider
146			*/
147			public function testSum( DecimalValue $a, DecimalValue $b, $value ) {
148			$math = new DecimalMath();
149
150			$actual = $math->sum( $a, $b );
151			$this->assertEquals( $value, $actual->getValue() );
152
153			$actual = $math->sum( $b, $a );
154			$this->assertEquals( $value, $actual->getValue() );
155			}
156
157			public function sumProvider() {
158			return array(
159			array( new DecimalValue( '+0' ), new DecimalValue( '+0' ), '+0' ),
160			array( new DecimalValue( '+0' ), new DecimalValue( '+1' ), '+1' ),
161			array( new DecimalValue( '+0' ), new DecimalValue( '+2' ), '+2' ),
162
163			array( new DecimalValue( '+2' ), new DecimalValue( '+0' ), '+2' ),
164			array( new DecimalValue( '+2' ), new DecimalValue( '+1' ), '+3' ),
165			array( new DecimalValue( '+2' ), new DecimalValue( '+2' ), '+4' ),
166
167			array( new DecimalValue( '+0.5' ), new DecimalValue( '+0' ), '+0.5' ),
168			array( new DecimalValue( '+0.5' ), new DecimalValue( '+0.5' ), '+1.0' ),
169			array( new DecimalValue( '+0.5' ), new DecimalValue( '+2' ), '+2.5' ),
170			);
171			}
172
173			/**
174			* @dataProvider minMaxProvider
175			*/
176			public function testMin( DecimalValue $min, DecimalValue $max ) {
177			$math = new DecimalMath();
178
179			$actual = $math->min( $min, $max );
180			$this->assertEquals( $min->getValue(), $actual->getValue() );
181
182			$actual = $math->min( $max, $min );
183			$this->assertEquals( $min->getValue(), $actual->getValue() );
184			}
185
186			/**
187			* @dataProvider minMaxProvider
188			*/
189			public function testMax( DecimalValue $min, DecimalValue $max ) {
190			$math = new DecimalMath();
191
192			$actual = $math->max( $min, $max );
193			$this->assertEquals( $max->getValue(), $actual->getValue() );
194
195			$actual = $math->max( $max, $min );
196			$this->assertEquals( $max->getValue(), $actual->getValue() );
197			}
198
199			public function minMaxProvider() {
200			return array(
201			array( new DecimalValue( '+0' ), new DecimalValue( '+0' ) ),
202			array( new DecimalValue( '+1' ), new DecimalValue( '+1' ) ),
203			array( new DecimalValue( '-0.2' ), new DecimalValue( '-0.2' ) ),
204
205			array( new DecimalValue( '-2' ), new DecimalValue( '+1' ) ),
206			array( new DecimalValue( '+0.33333' ), new DecimalValue( '+1' ) ),
207			);
208			}
209
210			/**
211			* @dataProvider roundToDigitProvider
212			*/
213			public function testRoundToDigit( DecimalValue $value, $digits, $expected ) {
214			$math = new DecimalMath();
215
216			$actual = $math->roundToDigit( $value, $digits );
217			$this->assertSame( $expected, $actual->getValue() );
218			}
219
220			public function roundToDigitProvider() {
221			$argLists = array();
222
223			//NOTE: Rounding is applied using the "round half away from zero" logic.
224
225			$argLists[] = array( new DecimalValue( '-2' ), 0, '+0' ); // no digits left
226
227			$argLists[] = array( new DecimalValue( '+0' ), 1, '+0' );
228			$argLists[] = array( new DecimalValue( '+0' ), 2, '+0' );
229			$argLists[] = array( new DecimalValue( '+0.0' ), 1, '+0' );
230			$argLists[] = array( new DecimalValue( '+0.0' ), 2, '+0' );
231			$argLists[] = array( new DecimalValue( '+0.0' ), 3, '+0.0' );
232
233			$argLists[] = array( new DecimalValue( '+1.45' ), 1, '+1' );
234			$argLists[] = array( new DecimalValue( '+1.45' ), 3, '+1.5' );
235			$argLists[] = array( new DecimalValue( '+1.45' ), 4, '+1.45' );
236
237			$argLists[] = array( new DecimalValue( '-1.45' ), 1, '-1' );
238			$argLists[] = array( new DecimalValue( '-1.45' ), 3, '-1.5' );
239			$argLists[] = array( new DecimalValue( '-1.45' ), 4, '-1.45' );
240
241			$argLists[] = array( new DecimalValue( '+9.99' ), 1, '+10' );
242			$argLists[] = array( new DecimalValue( '+9.99' ), 3, '+10.0' );
243			$argLists[] = array( new DecimalValue( '+9.99' ), 4, '+9.99' );
244
245			$argLists[] = array( new DecimalValue( '+135.7' ), 1, '+100' );
246			$argLists[] = array( new DecimalValue( '+135.7' ), 3, '+136' );
247			$argLists[] = array( new DecimalValue( '+135.7' ), 5, '+135.7' );
248
249			$argLists[] = array( new DecimalValue( '-2' ), 1, '-2' );
250			$argLists[] = array( new DecimalValue( '-2' ), 2, '-2' );
251
252			$argLists[] = array( new DecimalValue( '+23' ), 1, '+20' );
253			$argLists[] = array( new DecimalValue( '+23' ), 2, '+23' );
254			$argLists[] = array( new DecimalValue( '+23' ), 3, '+23' );
255			$argLists[] = array( new DecimalValue( '+23' ), 4, '+23' );
256
257			$argLists[] = array( new DecimalValue( '-234' ), 1, '-200' );
258			$argLists[] = array( new DecimalValue( '-234' ), 2, '-230' );
259			$argLists[] = array( new DecimalValue( '-234' ), 3, '-234' );
260
261			$argLists[] = array( new DecimalValue( '-2.0' ), 1, '-2' );
262			$argLists[] = array( new DecimalValue( '-2.0' ), 2, '-2' ); // not padded (can't end with decimal point)
263			$argLists[] = array( new DecimalValue( '-2.0' ), 3, '-2.0' );
264			$argLists[] = array( new DecimalValue( '-2.0' ), 4, '-2.0' ); // no extra digits
265
266			$argLists[] = array( new DecimalValue( '-2.000' ), 1, '-2' );
267			$argLists[] = array( new DecimalValue( '-2.000' ), 2, '-2' );
268			$argLists[] = array( new DecimalValue( '-2.000' ), 3, '-2.0' );
269			$argLists[] = array( new DecimalValue( '-2.000' ), 4, '-2.00' );
270
271			$argLists[] = array( new DecimalValue( '+2.5' ), 1, '+3' ); // rounded up
272			$argLists[] = array( new DecimalValue( '+2.5' ), 2, '+3' );
273			$argLists[] = array( new DecimalValue( '+2.5' ), 3, '+2.5' );
274			$argLists[] = array( new DecimalValue( '+2.5' ), 4, '+2.5' );
275
276			$argLists[] = array( new DecimalValue( '+2.05' ), 1, '+2' );
277			$argLists[] = array( new DecimalValue( '+2.05' ), 2, '+2' );
278			$argLists[] = array( new DecimalValue( '+2.05' ), 3, '+2.1' ); // rounded up
279			$argLists[] = array( new DecimalValue( '+2.05' ), 4, '+2.05' );
280
281			$argLists[] = array( new DecimalValue( '-23.05' ), 1, '-20' );
282			$argLists[] = array( new DecimalValue( '-23.05' ), 2, '-23' );
283			$argLists[] = array( new DecimalValue( '-23.05' ), 3, '-23' ); // not padded (can't end with decimal point)
284			$argLists[] = array( new DecimalValue( '-23.05' ), 4, '-23.1' ); // rounded down
285			$argLists[] = array( new DecimalValue( '-23.05' ), 5, '-23.05' );
286
287			$argLists[] = array( new DecimalValue( '+9.33' ), 1, '+9' ); // no rounding
288			$argLists[] = array( new DecimalValue( '+9.87' ), 1, '+10' ); // rounding ripples up
289			$argLists[] = array( new DecimalValue( '+9.87' ), 3, '+9.9' ); // rounding ripples up
290			$argLists[] = array( new DecimalValue( '+99' ), 1, '+100' ); // rounding ripples up
291			$argLists[] = array( new DecimalValue( '+99' ), 2, '+99' ); // rounding ripples up
292
293			$argLists[] = array( new DecimalValue( '-9.33' ), 1, '-9' ); // no rounding
294			$argLists[] = array( new DecimalValue( '-9.87' ), 1, '-10' ); // rounding ripples down
295			$argLists[] = array( new DecimalValue( '-9.87' ), 3, '-9.9' ); // rounding ripples down
296			$argLists[] = array( new DecimalValue( '-99' ), 1, '-100' ); // rounding ripples down
297			$argLists[] = array( new DecimalValue( '-99' ), 2, '-99' ); // rounding ripples down
298
299			return $argLists;
300			}
301
302			/**
303			* @dataProvider getPositionForExponentProvider
304			*/
305			public function testGetPositionForExponent( $exponent, DecimalValue $decimal, $expected ) {
306			$math = new DecimalMath();
307
308			$actual = $math->getPositionForExponent( $exponent, $decimal );
309			$this->assertSame( $expected, $actual );
310			}
311
312			public function getPositionForExponentProvider() {
313			$argLists = array();
314
315			$argLists[] = array( 0, new DecimalValue( '+0' ), 1 );
316			$argLists[] = array( 1, new DecimalValue( '+10.25' ), 1 );
317			$argLists[] = array( 1, new DecimalValue( '-100.25' ), 2 );
318			$argLists[] = array( 2, new DecimalValue( '+100.25' ), 1 );
319			$argLists[] = array( -2, new DecimalValue( '+0.234' ), 4 );
320			$argLists[] = array( -2, new DecimalValue( '+11.234' ), 5 );
321
322			return $argLists;
323			}
324
325			/**
326			* @dataProvider roundToExponentProvider
327			*/
328			public function testRoundToExponent( DecimalValue $value, $digits, $expected ) {
329			$math = new DecimalMath();
330
331			$actual = $math->roundToExponent( $value, $digits );
332			$this->assertSame( $expected, $actual->getValue() );
333			}
334
335			public function roundToExponentProvider() {
336			$argLists = array();
337
338			//NOTE: Rounding is applied using the "round half away from zero" logic.
339
340			$argLists[] = array( new DecimalValue( '+0' ), 0, '+0' );
341			$argLists[] = array( new DecimalValue( '+0' ), 1, '+0' );
342			$argLists[] = array( new DecimalValue( '+0.0' ), 0, '+0' );
343			$argLists[] = array( new DecimalValue( '+0.0' ), 2, '+0' );
344			$argLists[] = array( new DecimalValue( '+0.0' ), -5, '+0.0' ); // no extra digits
345
346			$argLists[] = array( new DecimalValue( '+1.45' ), 0, '+1' );
347			$argLists[] = array( new DecimalValue( '+1.45' ), 2, '+0' );
348			$argLists[] = array( new DecimalValue( '+1.45' ), -5, '+1.45' );
349
350			$argLists[] = array( new DecimalValue( '+99.99' ), 0, '+100' );
351			$argLists[] = array( new DecimalValue( '+99.99' ), 2, '+0' );
352			$argLists[] = array( new DecimalValue( '+99.99' ), -1, '+100.0' );
353			$argLists[] = array( new DecimalValue( '+99.99' ), -5, '+99.99' );
354
355			$argLists[] = array( new DecimalValue( '-2' ), 0, '-2' );
356			$argLists[] = array( new DecimalValue( '-2' ), -1, '-2' );
357			$argLists[] = array( new DecimalValue( '-2' ), 1, '+0' );
358
359			$argLists[] = array( new DecimalValue( '+23' ), 0, '+23' );
360			$argLists[] = array( new DecimalValue( '+23' ), 1, '+20' );
361			$argLists[] = array( new DecimalValue( '+23' ), 2, '+0' );
362
363			$argLists[] = array( new DecimalValue( '-234' ), 2, '-200' );
364			$argLists[] = array( new DecimalValue( '-234' ), 1, '-230' );
365			$argLists[] = array( new DecimalValue( '-234' ), 0, '-234' );
366
367			$argLists[] = array( new DecimalValue( '-2.0' ), 0, '-2' );
368			$argLists[] = array( new DecimalValue( '-2.0' ), -1, '-2.0' );
369			$argLists[] = array( new DecimalValue( '-2.0' ), -2, '-2.0' ); // no extra digits
370
371			$argLists[] = array( new DecimalValue( '-2.000' ), 0, '-2' );
372			$argLists[] = array( new DecimalValue( '-2.000' ), -1, '-2.0' );
373			$argLists[] = array( new DecimalValue( '-2.000' ), -2, '-2.00' );
374
375			$argLists[] = array( new DecimalValue( '+2.5' ), 0, '+3' ); // rounded up
376			$argLists[] = array( new DecimalValue( '+2.5' ), -1, '+2.5' );
377			$argLists[] = array( new DecimalValue( '+2.5' ), -2, '+2.5' ); // no extra digits
378
379			$argLists[] = array( new DecimalValue( '+2.05' ), 0, '+2' );
380			$argLists[] = array( new DecimalValue( '+2.05' ), -1, '+2.1' ); // rounded up
381			$argLists[] = array( new DecimalValue( '+2.05' ), -2, '+2.05' );
382
383			$argLists[] = array( new DecimalValue( '-23.05' ), 1, '-20' );
384			$argLists[] = array( new DecimalValue( '-23.05' ), 0, '-23' );
385
386			$argLists[] = array( new DecimalValue( '-23.05' ), -1, '-23.1' ); // rounded down
387			$argLists[] = array( new DecimalValue( '-23.05' ), -2, '-23.05' );
388
389			$argLists[] = array( new DecimalValue( '+9.33' ), 0, '+9' ); // no rounding
390			$argLists[] = array( new DecimalValue( '+9.87' ), 0, '+10' ); // rounding ripples up
391			$argLists[] = array( new DecimalValue( '+9.87' ), -1, '+9.9' ); // rounding ripples up
392			$argLists[] = array( new DecimalValue( '+99' ), 1, '+100' ); // rounding ripples up
393			$argLists[] = array( new DecimalValue( '+99' ), 0, '+99' ); // rounding ripples up
394
395			$argLists[] = array( new DecimalValue( '-9.33' ), 0, '-9' ); // no rounding
396			$argLists[] = array( new DecimalValue( '-9.87' ), 0, '-10' ); // rounding ripples down
397			$argLists[] = array( new DecimalValue( '-9.87' ), -1, '-9.9' ); // rounding ripples down
398			$argLists[] = array( new DecimalValue( '-99' ), 1, '-100' ); // rounding ripples down
399			$argLists[] = array( new DecimalValue( '-99' ), 0, '-99' ); // rounding ripples down
400
401			return $argLists;
402			}
403
404			/**
405			* @dataProvider shiftProvider
406			*/
407			public function testShift( DecimalValue $value, $exponent, $expected ) {
408			$math = new DecimalMath();
409
410			$actual = $math->shift( $value, $exponent );
411			$this->assertEquals( $expected, $actual->getValue() );
412			}
413
414			public function shiftProvider() {
415			$argLists = array();
416
417			$argLists[] = array( new DecimalValue( '+0' ), 0, '+0' );
418			$argLists[] = array( new DecimalValue( '+0' ), 1, '+0' );
419			$argLists[] = array( new DecimalValue( '+0' ), 2, '+0' );
420			$argLists[] = array( new DecimalValue( '+0' ), -1, '+0.0' );
421			$argLists[] = array( new DecimalValue( '+0' ), -2, '+0.00' );
422
423			$argLists[] = array( new DecimalValue( '+0.0' ), 0, '+0.0' );
424			$argLists[] = array( new DecimalValue( '+0.0' ), 1, '+0' );
425			$argLists[] = array( new DecimalValue( '+0.0' ), 2, '+0' );
426			$argLists[] = array( new DecimalValue( '+0.0' ), -1, '+0.00' );
427			$argLists[] = array( new DecimalValue( '+0.0' ), -2, '+0.000' );
428
429			$argLists[] = array( new DecimalValue( '-125' ), 0, '-125' );
430			$argLists[] = array( new DecimalValue( '-125' ), 1, '-1250' );
431			$argLists[] = array( new DecimalValue( '-125' ), 2, '-12500' );
432			$argLists[] = array( new DecimalValue( '-125' ), -1, '-12.5' );
433			$argLists[] = array( new DecimalValue( '-125' ), -2, '-1.25' );
434			$argLists[] = array( new DecimalValue( '-125' ), -3, '-0.125' );
435			$argLists[] = array( new DecimalValue( '-125' ), -4, '-0.0125' );
436
437			$argLists[] = array( new DecimalValue( '-2.5' ), 0, '-2.5' );
438			$argLists[] = array( new DecimalValue( '-2.5' ), 1, '-25' );
439			$argLists[] = array( new DecimalValue( '-2.5' ), 2, '-250' );
440			$argLists[] = array( new DecimalValue( '-2.5' ), -1, '-0.25' );
441			$argLists[] = array( new DecimalValue( '-2.5' ), -2, '-0.025' );
442			$argLists[] = array( new DecimalValue( '-2.5' ), -3, '-0.0025' );
443
444			$argLists[] = array( new DecimalValue( '+5' ), -4, '+0.0005' );
445			$argLists[] = array( new DecimalValue( '+5.0' ), -4, '+0.00050' );
446			$argLists[] = array( new DecimalValue( '+5.00' ), -4, '+0.000500' );
447
448			return $argLists;
449			}
450
451			}
452

DataValues / Number

Push — master ( 8af716...dcf061 )

DecimalMathTest::roundToDigitProvider() B

Complexity

Size

Duplication

Importance

How to fix Long Method

Long Method

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