Implement containsAll method

munusphp · Apr 10, 2024 · 5de1d66 · 5de1d66
1 parent 74e66b4
commit 5de1d66
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Showing 3 changed files with 40 additions and 0 deletions.
diff --git a/src/Value.php b/src/Value.php
@@ -7,6 +7,7 @@
 use Munus\Collection\Iterator;
 use Munus\Collection\Stream;
 use Munus\Collection\Stream\Collector;
+use Munus\Collection\Traversable;
 use Munus\Control\Option;
 use Munus\Control\TryTo;
 use Munus\Value\Comparator;
@@ -118,6 +119,21 @@ public function contains($element): bool
         return false;
     }
 
+    /**
+     * @param Traversable<T> $elements
+     */
+    public function containsAll(Traversable $elements): bool
+    {
+        $iterator = $elements->iterator();
+        while ($iterator->hasNext()) {
+            if (!$this->contains($iterator->next())) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
     /**
      * @param callable(T):bool $predicate
      */

diff --git a/tests/Collection/GenericListTest.php b/tests/Collection/GenericListTest.php
@@ -208,4 +208,16 @@ public function testListSorted(): void
     {
         self::assertTrue(GenericList::of('a', 'b', 'c', 'd', 'e')->equals(GenericList::of('e', 'd', 'c', 'b', 'a')->sorted()));
     }
+
+    public function testListContainsAll()
+    {
+        self::assertTrue(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll([3, 2, 1])));
+        self::assertTrue(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll([2, 1])));
+        self::assertTrue(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll([1])));
+
+        self::assertFalse(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll([1, 2, 3, 4])));
+        self::assertFalse(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll([1, 2, 4])));
+        self::assertFalse(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll([1, 4])));
+        self::assertFalse(GenericList::ofAll([1, 2, 3])->containsAll(GenericList::ofAll(['a'])));
+    }
 }
diff --git a/tests/Collection/StreamTest.php b/tests/Collection/StreamTest.php
@@ -100,6 +100,18 @@ public function testStreamContains(): void
         self::assertTrue(Stream::ofAll([1, 2, 3])->contains(2));
     }
 
+    public function testStreamContainsAll(): void
+    {
+        self::assertTrue(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll([3, 2, 1])));
+        self::assertTrue(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll([2, 1])));
+        self::assertTrue(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll([1])));
+
+        self::assertFalse(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll([1, 2, 3, 4])));
+        self::assertFalse(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll([1, 2, 4])));
+        self::assertFalse(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll([1, 4])));
+        self::assertFalse(Stream::ofAll([1, 2, 3])->containsAll(Stream::ofAll(['a'])));
+    }
+
     public function testStreamMapSingle(): void
     {
         self::assertTrue(