How to test inner arrays with phpunit - phpunit

Question

I have to test an array with inner arrays.
my array looks like the following.
$testdata=Array
(
[0] => Array
(
[label] => 'Ammy'
[idr] => 'user7'
[rel] => 7
)
[1] => Array
(
[label] => 'sidh'
[idr] => user8
[rel] => 8
)
[2] => Array
(
[label] => 'Alan'
[idr] => 'user9'
[rel] => 9
)
)
in this case my requirement is to assert whether the keys for inner array present using assertArrayHasKey() assertion of phpunit. I tried to do it like this
foreach ($testdata as $values) {
//print_r($values);
$this->assertArrayHasKey('idr', $values);
$this->assertArrayHasKey('rel', $values);
}
but this is not working for me. even the control does not go inside the foreach() loop.
please suggest me some solution for this.

Answer 1

foreach ($testdata as $values) {
//print_r($values);
$this->assertArrayHasKey('idr', $values);
$this->assertArrayHasKey('rel', $values);
}
this part in my question works fine. actually i was not getting the array itself in the test scenario. so it was not going inside the foreach(). now it is solved. i had a mistake in passing args to the function.

Answer 2

This is the example usage
/** Example One */
$testData = [
[
'label' => '',
'idr' => ''
], [
'label' => '',
'idr' => ''
], [
'label' => '',
'idr' => ''
]
];
$this->assertArrayStructure([
['label','idr']
], $testData);
/** Example Two */
$testData = [
'result' => true,
'data' => [
'col_1' => '',
'col_2' => ''
],
];
$this->assertArrayStructure([
'result', 'data' => ['col_1', 'col_2']
], $testData);
/** Example Three */
$testData = [
'result' => true,
'data' => [
[
'col_1' => '',
'col_2' => ''
],
[
'col_1' => '',
'col_2' => ''
]
],
];
$this->assertArrayStructure([
'result', 'data' => ['col_1', 'col_2']
], $testData, true);
Here is function
/**
* Like as assertJsonStructure
*
* #param array $data
* #param array $structures #e.g., [ key_1, key_2 => [child_key]]
* #param bool $dataHasMultiArray #e.g., $data[0][key]
*/
protected function assertArrayStructure(array $structures, array $data, bool $dataHasMultiArray = false)
{
$i = 0;
foreach ($structures as $index => $key) {
if (!is_numeric($index)) {
$this->assertArrayHasKey($index, $data);
}
if (is_string($key)) {
$this->assertArrayHasKey($key, $data);
}
if (is_array($key)) {
$this->assertArrayHasKeys($key, $dataHasMultiArray ? $data[$index][$i] : $data[$index]);
$i++;
}
}
}
/**
* #param $structures
* #param array $data
*/
protected function assertArrayHasKeys($structures, array $data)
{
foreach ($structures as $key) {
$this->assertArrayHasKey($key, $data);
}
}

Answer 3

You can also use
assertArraySubset()
from: https://phpunit.de/manual/current/en/appendixes.assertions.html#appendixes.assertions.assertArraySubset
another solution is to compare arrays and then check if true:
$arrays_are_equal = ($array1 == $array2); // or === if you want identical
$this->assertTrue($arrays_are_equal);

Answer 4

Another option is to test only the first element of the multidimensional Array, like this:
$this->assertArrayHasKey('idr', $testdata[0]);
$this->assertArrayHasKey('rel', $testdata[0]);

Answer 5

I believe that that control is not going inside the foreach loop.
Remove whole :
$testdata= Array
(
[0] => Array
(
[label] => 'Ammy'
[idr] => 'user7'
[rel] => 7
)
[1] => Array
(
[label] => 'sidh'
[idr] => user8
[rel] => 8
)
[2] => Array
(
[label] => 'Alan'
[idr] => 'user9'
[rel] => 9
)
)