Add test for defaults

Author: wpscholar

tests/RandomPostOnRefreshTest.php

@@ -51,6 +51,25 @@ public function test_shortcode_returns_string() {
 		$this->assertIsString( $output );
 	}
 
+	/**
+	 * Test build_query_args with default attributes.
+	 */
+	public function test_build_query_args_defaults() {
+		$args = RandomPostOnRefresh::build_query_args( RandomPostOnRefresh::DEFAULT_ATTRIBUTES );
+		$this->assertEquals( '', $args['author'], 'author should be empty' );
+		$this->assertEquals( '', $args['class'], 'class should be empty' );
+		$this->assertEquals( '', $args['ids'], 'ids should be empty' );
+		$this->assertArrayHasKey( 'meta_query', $args );
+		$this->assertArrayHasKey( 'key', $args['meta_query'][0] );
+		$this->assertEquals( '_thumbnail_id', $args['meta_query'][0]['key'] );
+		$this->assertEquals( '', $args['not'], 'not should be empty' );
+		$this->assertEquals( array( 'post' ), $args['post_type'], 'post_type should be post' );
+		$this->assertEquals( 100, $args['posts_per_page'], 'posts_per_page should be 100' );
+		$this->assertEquals( '', $args['search'], 'search should be empty' );
+		$this->assertEquals( '', $args['taxonomy'], 'taxonomy should be empty' );
+		$this->assertEquals( '', $args['terms'], 'terms should be empty' );
+	}
+
 	/**
 	 * Test build_query_args with minimal attributes.
 	 */