fix: Test 코드 변경

2023-03-01 12:38:33 +09:00
parent 4fcafe88a7
commit 294897df54
3 changed files with 67 additions and 23 deletions
@@ -94,12 +94,18 @@ class RandUtil
    public function choice(array $items)
    {
        $keys = array_keys($items);
+        if(!$keys){
+            throw new \InvalidArgumentException();
+        }
        $keyIdx = $this->rng->nextInt(count($keys) - 1);
        return $items[$keys[$keyIdx]];
    }

    public function choiceUsingWeight(array $items)
    {
+        if(!$items){
+            throw new \InvalidArgumentException();
+        }
        $sum = 0;
        foreach ($items as $value) {
            if ($value <= 0) {
@@ -126,6 +132,10 @@ class RandUtil

    public function choiceUsingWeightPair(array $items)
    {
+        if(!$items){
+            throw new \InvalidArgumentException();
+        }
+
        $sum = 0;
        foreach ($items as [$item, $value]) {
            if ($value <= 0) {