1 files changed, 19 insertions, 0 deletions
diff --git a/tests/MetaboxTest.php b/tests/MetaboxTest.php
index 1a1353e..e26c9f2 100644
--- a/tests/MetaboxTest.php
+++ b/tests/MetaboxTest.php
@@ -55,6 +55,25 @@ class MetaboxTest extends TestCase
     /**
      * @test
      */
+    public function assignsTaxonomyOnce()
+    {
+        $this->metabox->taxonomy(['category', 'post_tag']);
+
+        $expectedTaxonomies = [
+            'category' => 'category',
+            'post_tag' => 'post_tag',
+        ];
+
+        $this->assertEquals($expectedTaxonomies, $this->metabox->taxonomies);
+
+        $this->metabox->taxonomy('category');
+
+        $this->assertEquals($expectedTaxonomies, $this->metabox->taxonomies);
+    }
+
+    /**
+     * @test
+     */
     public function modifiesAndHoldsPassedField()
     {
         $this->metabox->field($this->field);