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99 lines
1.9 KiB
PHP
99 lines
1.9 KiB
PHP
--TEST--
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array_shuffle(): Test return type and value for expected input
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--FILE--
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<?php
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/*
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* proto bool shuffle ( array &$array )
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* Function is implemented in ext/standard/array.c
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*/
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$numbers = range(1, 20);
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echo "*** testing array_shuffle \n";
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$a = array();
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var_dump(shuffle($a));
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var_dump($a);
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$a = array(1);
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var_dump(shuffle($a));
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var_dump($a);
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$a = array(2 => 1);
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var_dump(shuffle($a));
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var_dump($a);
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$a = array("a" => 1);
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var_dump(shuffle($a));
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var_dump($a);
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$a = array(array(1, 2, 3));
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var_dump(shuffle($a));
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var_dump($a);
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$a = array(1, 1, 1, 1);
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var_dump(shuffle($a));
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var_dump($a);
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$arr1 = array(5 => 1, 6 => 2, 7 => 3, 8 => 9);
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$arr2 = array(5 => 1, 6 => 2, 7 => 3, 8 => 9);
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shuffle($arr1);
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echo "this should be 0->...." . count(array_diff($arr1, $arr2)) . "\n";
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echo "this should be 4->...." . count(array_intersect($arr1, $arr2)) . "\n";
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$bigarray = range(1, 400);
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shuffle($bigarray);
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echo "this should be 400->...." . count($bigarray) . "\n";
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echo "*** testing pass by reference \n";
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$original = $bigarray;
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shuffle($bigarray);
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$diffarray = array_diff_assoc($original, $bigarray);
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if (count($diffarray) < 350) {
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// with 400 entries, the probability that 50 entries or more get the same
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// key-> value association should be so close to zero it wont happen in the lifetime of the
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// universe.
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echo "shuffled array seems to be similar to original\n";
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var_dump($original);
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var_dump($bigarray);
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} else {
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echo "test passed \n";
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}
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?>
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--EXPECT--
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*** testing array_shuffle
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bool(true)
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array(0) {
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}
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bool(true)
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array(1) {
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[0]=>
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int(1)
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}
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bool(true)
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array(1) {
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[0]=>
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int(1)
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}
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bool(true)
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array(1) {
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[0]=>
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int(1)
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}
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bool(true)
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array(1) {
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[0]=>
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array(3) {
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[0]=>
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int(1)
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[1]=>
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int(2)
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[2]=>
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int(3)
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}
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}
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bool(true)
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array(4) {
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[0]=>
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int(1)
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[1]=>
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int(1)
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[2]=>
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int(1)
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[3]=>
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int(1)
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}
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this should be 0->....0
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this should be 4->....4
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this should be 400->....400
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*** testing pass by reference
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test passed
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