5185546495

pending completion

Build # 5185546495

Build Type

push

github

Committed by

webeweb

Commit Message

Fix unit tests

Run Details

49100 of 49247 relevant lines covered (99.7%)

6.93 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

96.67

/src/types/Helper/IntegerHelper.php

<?php

/*
 * This file is part of the core-library package.
 *
 * (c) 2018 WEBEWEB
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace WBW\Library\Types\Helper;

use WBW\Library\Types\Exception\IntegerArgumentException;

/**
 * Integer helper.
 *
 * @author webeweb <https://github.com/webeweb>
 * @package WBW\Library\Types\Helper
 */
class IntegerHelper {

    /**
     * Factorial.
     *
     * @param int|null $n The number.
     * @return float|null Returns the factorial.
     */
    public static function factorial(?int $n): ?float {

        if (null === $n || $n < 0) {
            return null;
        }

        if (0 === $n) {
            return 1;
        }

        $result = $n;
        while (1 < --$n) {
            $result *= $n;
        }

        return $result;
    }

    /**
     * Determine if a value is an integer.
     *
     * @param mixed $value The value.
     * @return void
     * @throws IntegerArgumentException Throws an integer argument exception if the value is not of expected type.
     */
    public static function isInteger($value): void {
        if (false === is_integer($value)) {
            throw new IntegerArgumentException($value);
        }
    }

    /**
     * Parse a boolean.
     *
     * @param bool|null $value The boolean value.
     * @return int Returns 1 in case of success, 0 otherwise.
     */
    public static function parseBoolean(?bool $value): int {
        return $value === true ? 1 : 0;
    }

    /**
     * Parse a string.
     *
     * @param string|null $value The string value.
     * @return int|null Returns the integer in case of success, null otherwise.
     * @throws IntegerArgumentException Throws an integer argument exception if the string value does not represent an integer.
     */
    public static function parseString(?string $value): ?int {

        if (null === $value) {
            return null;
        }

        if (0 === preg_match("/^-?[0-9]+$/", $value)) {
            throw new IntegerArgumentException($value);
        }

        return intval($value);
    }

    /**
     * Summation.
     *
     * @param int|null $n The number.
     * @return float|null Returns the summation.
     */
    public static function summation(?int $n): ?float {

        if (null === $n) {
            return null;
        }

        $q = $n * ($n + 1);

        return $q / 2;
    }

    /**
     * Usort callback.
     *
     * @param bool $asc ASC ?
     * @return callable Returns the usort callback.
     */
    public static function usortCallback(bool $asc = true): callable {

        return function(?int $int1, ?int $int2) use ($asc): int {

            $result = null;

            if ($int1 < $int2) {
                $result = -1;
            }
            if ($int1 === $int2) {
                $result = 0;
            }
            if ($int1 > $int2) {
                $result = 1;
            }

            return true === $asc ? $result : -$result;
        };
    }
}

1	<?php
2
3	/*
4	* This file is part of the core-library package.
5	*
6	* (c) 2018 WEBEWEB
7	*
8	* For the full copyright and license information, please view the LICENSE
9	* file that was distributed with this source code.
10	*/
11
12	namespace WBW\Library\Types\Helper;
13
14	use WBW\Library\Types\Exception\IntegerArgumentException;
15
16	/**
17	* Integer helper.
18	*
19	* @author webeweb <https://github.com/webeweb>
20	* @package WBW\Library\Types\Helper
21	*/
22	class IntegerHelper {
23
24	/**
25	* Factorial.
26	*
27	* @param int\|null $n The number.
28	* @return float\|null Returns the factorial.
29	*/
30	public static function factorial(?int $n): ?float {
31
32	if (null === $n \|\| $n < 0) {	2✔
33	return null;	2✔
34	}
35
36	if (0 === $n) {	1✔
37	return 1;	1✔
38	}
39
40	$result = $n;	1✔
41	while (1 < --$n) {	1✔
42	$result *= $n;	1✔
43	}
44
45	return $result;	1✔
46	}
47
48	/**
49	* Determine if a value is an integer.
50	*
51	* @param mixed $value The value.
52	* @return void
53	* @throws IntegerArgumentException Throws an integer argument exception if the value is not of expected type.
54	*/
55	public static function isInteger($value): void {
56	if (false === is_integer($value)) {	2✔
57	throw new IntegerArgumentException($value);	1✔
58	}
59	}
60
61	/**
62	* Parse a boolean.
63	*
64	* @param bool\|null $value The boolean value.
65	* @return int Returns 1 in case of success, 0 otherwise.
66	*/
67	public static function parseBoolean(?bool $value): int {
68	return $value === true ? 1 : 0;	4✔
69	}
70
71	/**
72	* Parse a string.
73	*
74	* @param string\|null $value The string value.
75	* @return int\|null Returns the integer in case of success, null otherwise.
76	* @throws IntegerArgumentException Throws an integer argument exception if the string value does not represent an integer.
77	*/
78	public static function parseString(?string $value): ?int {
79
80	if (null === $value) {	7✔
81	return null;	1✔
82	}
83
84	if (0 === preg_match("/^-?[0-9]+$/", $value)) {	7✔
85	throw new IntegerArgumentException($value);	1✔
86	}
87
88	return intval($value);	6✔
89	}
90
91	/**
92	* Summation.
93	*
94	* @param int\|null $n The number.
95	* @return float\|null Returns the summation.
96	*/
97	public static function summation(?int $n): ?float {
98
99	if (null === $n) {	1✔
100	return null;	×
101	}
102
103	$q = $n * ($n + 1);	1✔
104
105	return $q / 2;	1✔
106	}
107
108	/**
109	* Usort callback.
110	*
111	* @param bool $asc ASC ?
112	* @return callable Returns the usort callback.
113	*/
114	public static function usortCallback(bool $asc = true): callable {
115
116	return function(?int $int1, ?int $int2) use ($asc): int {	4✔
117
118	$result = null;	4✔
119
120	if ($int1 < $int2) {	4✔
121	$result = -1;	4✔
122	}
123	if ($int1 === $int2) {	4✔
124	$result = 0;	4✔
125	}
126	if ($int1 > $int2) {	4✔
127	$result = 1;	4✔
128	}
129
130	return true === $asc ? $result : -$result;	4✔
131	};	4✔
132	}
133	}

webeweb / core-library / 5185546495

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous