diff --git a/tests/phpunit/tests/taxonomy/getObjectTaxonomies.php b/tests/phpunit/tests/taxonomy/getObjectTaxonomies.php
new file mode 100644
index 0000000000..afe5655fd9
--- /dev/null
+++ b/tests/phpunit/tests/taxonomy/getObjectTaxonomies.php
@@ -0,0 +1,48 @@
+<?php
+
+/**
+ * @group taxonomy
+ */
+class Tests_Taxonomy_GetObjectTaxonomies extends WP_UnitTestCase {
+	public function setUp() {
+		register_post_type( 'wptests_pt' );
+		register_taxonomy( 'wptests_tax', 'wptests_pt' );
+	}
+
+	public function test_object_should_accept_string() {
+		$found = get_object_taxonomies( 'wptests_pt' );
+		$expected = array( 'wptests_tax' );
+
+		$this->assertSame( $expected, $found );
+	}
+
+	public function test_object_should_accept_array_of_post_type_names() {
+		$found = get_object_taxonomies( array( 'wptests_pt' ) );
+		$expected = array( 'wptests_tax' );
+
+		$this->assertSame( $expected, $found );
+	}
+
+	public function test_object_should_accept_post_object() {
+		$p = self::factory()->post->create_and_get( array( 'post_type' => 'wptests_pt' ) );
+		$found = get_object_taxonomies( $p );
+		$expected = array( 'wptests_tax' );
+
+		$this->assertSame( $expected, $found );
+	}
+
+	public function test_should_respect_output_names() {
+		$found = get_object_taxonomies( 'wptests_pt', 'objects' );
+
+		$this->assertSame( array( 'wptests_tax' ), array_keys( $found ) );
+		$this->assertInternalType( 'object', $found['wptests_tax'] );
+		$this->assertSame( 'wptests_tax', $found['wptests_tax']->name );
+	}
+
+	public function test_any_value_of_output_other_than_names_should_return_objects() {
+		$found = get_object_taxonomies( 'wptests_pt', 'foo' );
+		$expected = get_object_taxonomies( 'wptests_pt', 'objects' );
+
+		$this->assertSame( $expected, $found );
+	}
+}