Added deleteAllCollections (#38)

* Dried up deleteAllAnalyzers code

* Added deleteAllCollections

* Added deleteAllCollections

Author: LaravelFreelancerNL

docs/schema-collections.md

@@ -81,4 +81,10 @@ Delete a collection
 ```
 $arangoClient->schema()->deleteCollection('users');
 ```
+###  deleteAllCollections(): bool
+This method deletes all non-system collections available on the current database.
+
+```
+$arangoClient->schema()->deleteAllCollections();
+```
 

src/Schema/ManagesAnalyzers.php

@@ -71,9 +71,7 @@ public function deleteAllAnalyzers(): bool
                 continue;
             }
 
-            $uri = '/_api/analyzer/' . $analyzer->name;
-
-            $this->arangoClient->request('delete', $uri);
+            $this->deleteAnalyzer($analyzer->name);
         }
 
         return true;

src/Schema/ManagesCollections.php

@@ -214,4 +214,18 @@ public function deleteCollection(string $name): bool
 
         return (bool) $this->arangoClient->request('delete', $uri);
     }
+
+    /**
+     * @throws ArangoException
+     */
+    public function deleteAllCollections(): bool
+    {
+        $collections = $this->getCollections(true);
+
+        foreach ($collections as $collection) {
+            $this->deleteCollection($collection->name);
+        }
+
+        return true;
+    }
 }

tests/SchemaManagerCollectionsTest.php

@@ -192,3 +192,28 @@
 
     $this->schemaManager->deleteCollection($collection);
 });
+
+test('deleteAllCollections', function () {
+    $collection1 = 'collection1';
+    $collection2 = 'collection2';
+
+    if (!$this->schemaManager->hasCollection($collection1)) {
+        $result = $this->schemaManager->createCollection($collection1, []);
+        expect($result->name)->toEqual($collection1);
+    }
+
+    if (!$this->schemaManager->hasCollection($collection2)) {
+        $result = $this->schemaManager->createCollection($collection2, []);
+        expect($result->name)->toEqual($collection2);
+    }
+
+    $createdCollections = $this->schemaManager->getCollections(true);
+
+    $result = $this->schemaManager->deleteAllCollections();
+
+    $finalCollections = $this->schemaManager->getCollections(true);
+
+    expect($result)->toBeTrue();
+    expect(count($createdCollections))->toBe(2);
+    expect(count($finalCollections))->toBe(0);
+});