How would I test for this line in Codeception - yii2

Question

I am writing some unit tests and struggling to capture the 1 remaining line of this small model in Yii2.
UserSearch.php
public function search($params)
{
$query = User::find();
// add conditions that should always apply here
$dataProvider = new ActiveDataProvider([
'query' => $query,
]);
$this->load($params);
if (!$this->validate()) {
// $query->where('0=1');
return $dataProvider; // This line in tests is red and marked as not executed
}
// grid filtering conditions
$query->andFilterWhere([
'id' => $this->id,
'date_added' => $this->date_added,
'last_login' => $this->last_login,
]);
$query->andFilterWhere(['like', 'username', $this->username])
return $dataProvider;
}
UserTest.php
public function testUserSearch()
{
$model = new UserSearch();
expect_that($model->search(['id' => 2]));
}
public function testInvalidDataProvider()
{
$model = new UserSearch();
expect_that($model->search(['id' => '2']));
}
The second test passes correctly as !this->Validate() method fails as id isn't an integer, why isn't the return statement reflected as executed in the code coverage. what am I misunderstanding here?

Answer 1

Integer must contain only digits [see validation]: https://github.com/yiisoft/yii2/blob/master/framework/validators/NumberValidator.php#L51 '2' is valid integer
model->search() return ActiveDataProvider. Is correct.